JPH05185875A - Television loaded on vehicle - Google Patents

Abstract

PURPOSE:To improve operability at taking in and out a television main body and prevent thermal deformation of a liquid crystal display part. CONSTITUTION:The operation of taking in and out a television main body 20 against a casing 10 is automatically performed based on ON/OFF of an accessory key. Data of a sending out quantity of the television main body from the casing 10 and a rotational moved angle to a position where it can be easily seen are memorized in a memory, and the television main body 20 is set on a decided position and angle in response to ON operation of the accessory key. Hereby, especially in case of OFF of the accessory key, it is prevented to forget the return of the television main body into the casing, hence there is no possibility to be exposed under the burning sun, and thermal deformation of a liquid crystal display part can be surely prevented. Further, the feed adjustment and angle adjustment of the television main body are dispensable, and the operability is improved.

Description

Detailed Description of the Invention

[0001]

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

[0002]

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

By the way, in recent years, liquid crystal televisions, which have advantages such as small size and thin shape, have been improved in function, and the price is reasonable. Therefore, the popularity of LCD televisions is increasing in place of cathode ray tube televisions.

However, in many passenger cars, there is no space for installing a liquid crystal TV, not limited to a cathode ray tube type TV. Therefore, for example, when the liquid crystal TV is installed in the passenger compartment, a dedicated installation is made on the dashboard. It is mounted using metal fittings or a dedicated mounting arm near the shift knob.

However, in such a mounting method, when the liquid crystal television fixedly mounted by the dedicated metal fitting or the dedicated arm is simply installed in the vehicle compartment, it is often exposed to the hot sun of midsummer. However, there is a great risk that the liquid crystal display part may be deformed by heat and the display function of the liquid crystal television may be significantly impaired.

As a solution to such a problem,
For example, Japanese Patent Application Laid-Open No. 2-31577 discloses a vehicle-mounted 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 main body 1 is installed inside the dashboard D. Inside the casing 2, a feeding mechanism 3 that allows the television main body 1 to move back and forth is provided. A support mechanism (not shown) is provided at the lower end of the television body 1, and the feed mechanism 3 is connected via this support mechanism.

In use, in the case of manual use, the TV main body 1 is pulled out from the inside of the casing 2 to the front side (see FIG. 2), and then raised up to an appropriate angle with the support mechanism as a fulcrum (see FIG. 3). On the other hand, in the case of the transmission control, when the pull-out start button (not shown) is operated, the feeding mechanism 3
Is driven to drive the television main body 1 from inside the casing 2.
Is sent out (see FIG. 2), and then the television main body 1 is rotated to a predetermined angle via the support mechanism (see FIG. 3).

When not in use, in the case of manual operation, the TV main body 1 is laid horizontally through the support mechanism and then the TV main body 1 is pushed into the casing 2. On the other hand, in the case of the transmission control, when the pull-back start button (not shown) is operated, the TV main body 1 is tilted horizontally via the support mechanism, and then the TV main body 1 is returned to the casing 2 by the feeding mechanism 3. Be done.

As a result, when not in use, the television 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 sun of midsummer. The problem that the liquid crystal display section is deformed by heat is solved.

[0010]

By the way, in the case of returning the television main body 1 to the inside of the casing 2 in the above-described conventional on-vehicle television, in the manual one, after the television main body 1 is tilted horizontally through the support mechanism, the casing is Push TV main unit 1 into 2. On the other hand, in the case of the transmission control, the television main body 1 is tilted horizontally by operating the pullback start button (not shown), and the casing 2 is moved by the feeding mechanism 3.
Returned inside.

Therefore, it is necessary to intentionally return the television main body 1 into the casing 2 both manually and by transmission control, which is a troublesome operation. If the user forgets to return the television body 1 to the casing 2, the television body 1 is exposed to the hot sun, and the liquid crystal display portion is deformed by heat.

The present invention has been made in consideration of such circumstances, and the television main body is automatically put in and taken out from the casing in synchronization with turning on / off of the accessory key of the vehicle. It is an object of the present invention to provide a vehicle-mounted television capable of improving operability in putting in and taking out a battery and preventing thermal deformation of a liquid crystal display unit.

[0013]

In order to achieve the above-mentioned object, the present invention is held so as to be capable of advancing and retracting with respect to a casing embedded in a console portion of an automobile, and is pushed out from the casing and has a predetermined angle. In a vehicle-mounted television having a television main body that is turned up to, an ON / OFF detecting unit that detects an ON / OFF state of the accessory key of the automobile, and a result of the detection by the ON / OFF detecting unit that the accessory key is When it is off, it is provided with a television main body entrance / exit means for accommodating the television main body in the casing.

[0014]

In the on-vehicle television of the present invention, the television main body is 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 In addition to pushing the TV body out of the casing and rotating the TV body up to a predetermined angle, when the accessory key is off, rotate the TV body up to a predetermined angle and store the TV body in the casing. It was done. Therefore, it is possible to reliably prevent the user from forgetting to return the television main body to the inside of the casing, so that the problem that the liquid crystal display unit is deformed by heat is eliminated.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. 4 to 10 show an embodiment of a vehicle-mounted television of 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 vehicle dashboard (not shown) or the like. It is movably supported. The television main body 20 can be moved back and forth with respect to the casing 10 by the feeding mechanism 40. Further, the television body 20 is rotated by a rotation mechanism 50 to a predetermined easy-to-see angle.

The operation of the feed mechanism 40 and the rotating mechanism 50 is adapted to be driven in synchronism with ON / OFF of the accessory key of the vehicle as described later. Furthermore, after the TV body 20 is rotated to a predetermined angle, the support mechanism 30 is retracted into the casing 10 until the rear surface side of the TV body 20 contacts the dashboard D.

The casing 10 is provided with an opening 13 which serves as an entrance / exit of the television main body 20. Further, the casing 10 has a dimension defined by the DIN standard.

On the side surface of the television main body 20, function buttons (not shown) for performing channel selection, volume adjustment, brightness adjustment and the like are provided. The television body 20 is provided with a liquid crystal display section 21, and the casing 10
The liquid crystal display unit 21 faces downward when it is housed inside. The edge portion 23a of the TV body 20 is formed in an R shape, so that the TV body 20 can be smoothly rotated at a position immediately before being completely pushed out from the casing 10, as described later. There is.

The support mechanism 30 is provided with a sub casing 31. Rollers 33 are rotatably attached to both sides of the sub-casing 31 via support members 32. The guide member 14 is provided on the inner surface of the casing 10.
Extends horizontally. Each roller 33 is mounted on the guide member 14. Thereby, the sub-casing 31 is slidable in the casing 10.
A support arm 34 is arranged to face the tip of the sub-casing 31. The TV body 20 is rotatably attached between the support arms 34.

On one side of the upper end surface of the sub-casing 31,
An optical sensor 70 is attached. A sheet-like position detection member 71 is attached to a position corresponding to the optical sensor 70 on the inner surface of the casing 10. Sub casing 31
The optical sensor 70 captures the reflected light modulated from the position detection member 71 in accordance with the movement of the sub-casing 31, and the amount of movement of the sub-casing 31 is detected.

The feed mechanism 40 is provided with a feed drive motor 41 for sliding the sub casing 31 in 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 42a to 42f 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 the transmission gears 42a to 42f.

On the casing 10 side, rack gears 11,
Twelve are laid 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 driving force of 1 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 the rotation start position after the television main body 20 has been sent to a predetermined position is attached to the tip end side of the casing 10. A contact member 46 is attached to a side surface of the sub-casing 31 to contact the sense switch 45 when the sub-casing 31 is fed by a predetermined amount and turn the switch on.

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

The turning mechanism 50 is provided with a turning drive motor 51 for giving turning force for turning the television main body 20 pushed out of the casing 10 to an angle at which the television main body 20 can be seen easily. A worm gear 52 is attached to the drive shaft of the rotation drive motor 51. A large gear 53, which meshes with the rotating fan-shaped gears 22 and 23 provided on the television body 20 side, is rotatably arranged on the tip end side of the sub-casing 31. The large gear 53 is used for each fan-shaped gear 22, 2.
3 are arranged to face each other, and each large gear 53 has a shaft 53
They are connected by 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 the transmission gears 54a to 54f.

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

A discriminating plate 56 on the upper end surface of the sub-casing 31
An optical sensor 58 is attached via a substrate 57 to a position corresponding to. The amount of rotation of the TV body 20 is detected by the optical sensor 58 taking in the modulated reflected light from the discrimination plate 56 as the TV body 20 rotates.

The basic operation of the vehicle-mounted television having such a configuration is as follows. First, when a start switch (not shown) that prompts the TV body 20 to be pulled out from 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
It is transmitted to the pinion gear 43 via the worm gear 42 and the 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. As the pinion gears 43 and 44 rotate, the sub-casing 31 is sent to the opening 13 side 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, whereby the sub-casing 31 is detected. Is detected.

The sub-casing 31 is the feed drive motor 4
When it is sent to the side of the opening 13 shown in FIG. 9 by the driving force of 1, the contact member 46 attached to the sub-casing 31 comes into contact with the sense switch 45 attached to the casing 10. This position is a position immediately before the TV main body 20 is completely pushed out of the casing 10, and is also a position that does not hinder the rotation of the TV main body 20.

As a result, 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 the 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.

The respective main gears 53 rotate, and the fan-shaped gears 22, 23 meshing with the large gears 53 rotate, whereby the television main body 20.
Rotates.

At this time, since the edge portion 23a of the television main body 20 is formed in an R shape, the edge portion 23a does not come into contact with the casing 10 when the television main body 20 is rotated, so that the operation is performed smoothly. At this time, the transmission gear 5
The rotation angle determination gear 55 that meshes with 4f rotates in synchronization with the rotation of the TV body 20, and the determination plate 56 also rotates. The optical sensor 58 attached to the sub-casing 31 side takes in the reflected light modulated by the rotation of the discriminating plate 56, so that the rotation amount of the television body 20 is detected.

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

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

Further, when the result of rotation up to a preset angle by the optical sensor 58 and the predetermined delivery amount of the sub-casing 31 by the optical sensor 70 are detected, the feed drive motor 41 is moved in the direction opposite to the feed direction. The support mechanism 30 is pulled back to the inside of the casing 10. The return amount of the casing 10 is detected by the optical sensor 70, and as shown in FIG. 11, when the return amount until the rear surface side of the television main body 20 contacts the dashboard D is detected, the feed drive motor 41. Is stopped.

As a result, the rear surface side of the television body 20 is held by the dashboard D, and the fixing area for the television body 20 is widened, so that the television body 20 is surely prevented from being shaken during traveling. When detecting the state where the back side of the TV body 20 contacts the dashboard D, a mechanical switch or an optical switch is installed on the back side of the TV body 20, for example, based on an increase in the load applied to the feed drive motor 41. It may be provided and may be performed based on these detection results.

When the television main body 20 is held by the dashboard D, the rear side thereof is the dashboard D.
Since it is in contact with, the operation of various operation buttons provided on the TV body 20 is not hindered.

On the other hand, the television main body 2 is provided inside the casing 10.
The basic operation when 0 is returned 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 inside the casing 10. At about 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 horizontally tilted.

When the television main body 20 is completely tilted to the horizontal position, the sub casing 31 is moved to the position shown in FIG. At this time, the contact member 46 attached to the sub-casing 31 comes into contact with the sense switch 45 attached to the casing 10 side to detect the completion of the rotation return of the television body 20 to the horizontal position.
As a result, the drive of the rotation drive motor 51 is stopped.

From this state, the pulling-in 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 pulled in by a predetermined amount. When this is detected, the driving of the feed drive motor 41 is stopped.

Then, turn on / off the accessory key of the vehicle.
An operation of moving the television main body 20 in and out of the casing 10 based on turning off will be described with reference to FIGS. 12 to 15.

First, when the TV body 20 is pushed out of the casing 10 and the accessory key is turned off (step 101), the storing operation of the TV body 20 is started (step 102).

At this time, a memory key (not shown) is operated to store the state of the standing angle of the TV body 20 before the start of the housing operation of the TV body 20 (step 1).
03), if the data was stored in the memory in the previous operation, the data is updated (step 10
6) If the data is not stored in the memory, the current data is stored in the memory (step 107).
However, if the memory key is not operated in (step 103), the previously stored memory data is cleared (step 104).

Upon completion of these operations, 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 rotation drive motor 51 continues to be driven.

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 by the sheet-like position detecting member 71 attached to the casing 10 side 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 retracting operation of the television main body 20 (step 113), the driving of the rotation drive motor 51 is stopped (step 114). Next, when the detection result by 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 storing the television main body 20 in the casing 10 is completed.

Next, the television main body 20 is replaced with the casing 10.
When the accessory key is turned on (step 201) and the switch for urging the TV body 20 to be pushed out is turned on (step 2).
02), it is determined whether or not data has been stored in the memory by the previous operation (step 203).

If the data is not stored in the memory, the amount of rotation by the rotation drive motor 51 to be driven later is set to a predetermined value (step 205). On the other hand, when the 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 operated as described above.
Captures the modulated reflected light from the position detection 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 at the same time, the optical sensor 58 causes the discriminating plate 56.
The reflected light modulated by the rotation of is taken (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, in (step 204), it is judged whether or not the horizontal pulse which is the feed amount of the feed drive motor 41 is set (step 215), and when it is decided that the pulse is set, the feed drive motor 41 is set. Is reversely driven, 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 the pulse has not been set, it is determined whether or not the vibration absorption mode is present (step 216). The motor 41 is reversely driven, and when the back 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 this embodiment, since the television main body 20 is automatically moved in and out of the casing 10 based on the turning on / off of the accessory key, especially when the accessory key is turned off. Since the forgetting to return the television main body 20 to the casing 10 is prevented, it is not exposed to the hot sun and the deformation of the liquid crystal display portion 21 due to heat can be reliably prevented.

Further, in this embodiment, the data of the feed amount of the television main body 20 from the casing 10 and the rotation angle to the easily visible position are stored in the memory, and the television main body 20 is turned on together with the ON operation of the accessory key. Since it is set at the predetermined position and the predetermined angle, the feed adjustment and the angle adjustment of the television main body 20 are unnecessary, and the operability is improved.

[0059]

As described above, according to the vehicle-mounted television of the present invention, the television main body is 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 TV main body is pushed out of the casing and the TV main body is rotated to a predetermined angle, and when the accessory key is off, the TV main body is rotated to a predetermined angle and the TV The main body is housed in a casing.

Therefore, forgetting to return the television main body to the casing is surely prevented, so that thermal deformation of the liquid crystal display portion can be surely prevented. Further, since the TV main body is automatically put in and taken out from the casing in synchronization with turning on / off of the accessory key of the vehicle, it is possible to improve operability in putting the TV main body in and out.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a mounted 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 from a casing of the vehicle-mounted television shown in FIG.

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

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

5 is a bottom view showing the vehicle-mounted television of FIG. 4. FIG.

6 is a front view showing the vehicle-mounted television of FIG. 4. FIG.

7 is a left side view showing the vehicle-mounted television of FIG.

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

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

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

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

FIG. 12 is a flowchart for explaining an operation when the TV main body of the vehicle-mounted TV shown in FIG. 4 is returned to the inside of the casing in synchronization with the accessory key being turned off.

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

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

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

[Explanation of symbols]

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

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koji Takano, 25, Nishimachi, Kawagoe, Saitama Prefecture, Yamada, 1 1 Pioneer Co., Ltd., Kawagoe Factory (72) Keigo Nagai, 25, Nishimachi, Yamada, Kawagoe, Saitama Pioneer Corporation Kawagoe Factory

Claims (1)

[Claims] 1. A vehicle-mounted television having a television main body which is held so as to be movable back and forth with respect to a casing embedded in a console portion of an automobile, and which is pushed out from the casing and rotated by a predetermined angle. ON / OFF detecting means for detecting an ON / OFF state of an accessory key of an automobile, and when the accessory key is OFF as a result of detection by the ON / OFF detecting means, the TV main body is housed in the casing. A vehicle-mounted television, comprising: a television main body entry / exit means.