KR100402218B1 - Car television of roof mounted type - Google Patents

Abstract

A car television comprising a cover frame and a main frame mounted in the cover frame, the cover frame comprising: a frame body mounted on an interior roof of a vehicle and having an upper opening; A cover hole formed in one side of the frame body; The main frame, the rack gear is installed on both sides of the inner side in the longitudinal direction, the base fixed to the frame body; A carrier body meshed with the rack gear of the base and having a pair of pinion gears coupled to both ends of the base, a support body having a tilt gear installed at one end and coupled to the carrier body to allow left and right rotation; A carrier installed in the body and formed of a front and rear drive unit for rotating the pinion gear of the carrier body according to the application of a driving voltage and a rotation drive unit installed in the support body and rotating the tilt gear in response to the application of a driving voltage; It is rotatably installed at the front end of the carrier body, and provided with a sector gear engaged with the tilt gear of the carrier body, protrudes through the cover hole in accordance with the rotation of the pinion gear is set in advance according to the rotation of the tilt gear A roof-mounted car television is provided which consists of a display unit which is tilted at an angle.

Description

Roof Mounted Car TV {CAR TELEVISION OF ROOF MOUNTED TYPE}

BACKGROUND OF THE INVENTION The present invention relates to car televisions, and more particularly to car televisions mounted on the interior roof of a vehicle.

With the development of communication and transportation, there is a rapid increase in the number of people who want to use media such as television and audio in their vehicles. A car television is a television system installed in a vehicle and is a device that can watch a screen output through a monitor while driving or stopping. The car television is divided into a seat type installed at the rear of the driver's seat and the passenger seat according to the mounting position, an in dash type mounted in the in-dash board, and a loop type installed on the interior roof of the vehicle. A typical type of the roof-type television is a flip-down type car television that can be folded according to a use state.

1 is a perspective view showing a flip-down car television according to a conventional embodiment. As shown in FIG. 1, the flip-down type car television 100 according to the conventional embodiment is largely composed of an overhead console 110 and a display frame 120.

The overhead console 110 is a member installed on the interior roof of the vehicle, and has a console groove 112 at the rear thereof.

The display frame 120 is a screen output portion, one end of which is hinged to the overhead console 110. The display frame 120 remains embedded in the console groove 112 before use, and flips down by the user's operation during use.

Such flip-down type car televisions are described in US Patent No. D413,856 "Overhead console with flip-down television screen for a motor vehicle" and US Patent No. 5,775,762 "Overhead console having flip-down, in addition to the type disclosed in FIG. monitor "and the like.

However, the flip-down car television is not only inconvenient to operate because the flip-down operation of the display frame is performed manually, but also the risk of a traffic accident caused by neglecting the front boundary to flip-down the display frame during driving. There was a problem with this increase.

In addition, the flip-down type car television has a problem in that when the display frame is flipped down suddenly, when the display frame is flipped down, the display frame is rotated upward or flipped up due to inertia, so that the normally displayed screen cannot be viewed. .

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a roof-mounted car television that can minimize the risk of a traffic accident as well as simplify the operation process by automatically operating the display portion.

In addition, another object of the present invention is to provide a roof-mounted car television that can always enjoy a normal screen regardless of the vehicle driving state by maintaining the angle formed by the display portion even if a sudden stop phenomenon or the like occurs during the display operation.

In order to achieve the above object, the present invention provides a car television comprising a cover frame and a main frame mounted in the cover frame, wherein the cover frame comprises: a frame body mounted on an interior roof of a vehicle and having an upper opening; ; A cover hole formed in one side of the frame body; The main frame, the rack gear is installed on both sides of the inner side in the longitudinal direction, the base fixed to the frame body; A carrier body meshed with the rack gear of the base and having a pair of pinion gears coupled to both ends of the base, a support body having a tilt gear installed at one end and coupled to the carrier body to allow left and right rotation; A carrier installed in the body and formed of a front and rear drive unit for rotating the pinion gear of the carrier body according to the application of a driving voltage and a rotation drive unit installed in the support body and rotating the tilt gear in response to the application of a driving voltage; It is rotatably installed at the front end of the carrier body, and provided with a sector gear engaged with the tilt gear of the carrier body, protrudes through the cover hole in accordance with the rotation of the pinion gear is set in advance according to the rotation of the tilt gear A roof-mounted car television is provided which consists of a display unit which is tilted at an angle.

1 is a perspective view showing a flip-down car television according to a conventional embodiment,

2 is an exploded perspective view showing a roof mounted car television according to a preferred embodiment of the present invention;

3 is a side view showing a main frame of a loop-mounted car television with a display unit according to a preferred embodiment of the present invention;

4 is a side view showing a main frame of a loop mounted car television in which a display unit is tilted according to a preferred embodiment of the present invention;

5 is a block diagram showing a main frame of a loop-mounted car television according to a preferred embodiment of the present invention;

6 is a configuration diagram showing a state before the carrier of the loop-mounted car television according to the preferred embodiment of the present invention,

7 is a configuration diagram showing a state after the carrier of the loop-mounted car television according to a preferred embodiment of the present invention,

8 is a perspective view showing an off mode state of a roof mounted car television according to a preferred embodiment of the present invention;

9 is a perspective view showing an operation mode state of a roof mounted car television according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

400: cover frame 410: frame body

420: cover hole 500: main frame

510: base 520: carrier

530: display unit

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Figure 2 is an exploded perspective view showing a roof-mounted car television according to a preferred embodiment of the present invention, Figure 3 is a side view showing a main frame of a loop-mounted car television with a display unit according to a preferred embodiment of the present invention, 4 is a side view showing a main frame of a loop mounted car television on which a display unit according to a preferred embodiment of the present invention is tilted.

5 is a plan view showing the main frame of the roof-mounted car television according to the preferred embodiment of the present invention, and FIG. 6 is a view before the carrier of the roof-mounted car television according to the preferred embodiment of the present invention rotates. 7 is a configuration diagram showing a state after the carrier of the loop-mounted car television according to the preferred embodiment of the present invention is rotated.

As shown in FIGS. 2 to 7, the roof-mounted car television 300 according to a preferred embodiment of the present invention includes a cover frame 400 and a main frame 500. Although the present invention has been described with reference to the embodiment of a car television, all of the configurations of the present invention can be applied to a multimedia device that can be mounted in an interior loop of a vehicle such as car video and car audio. It will be obvious to those with ordinary knowledge in the field. That is, the present invention is applicable to a multimedia device including a main frame and a cover frame, and installed on an indoor loop of a vehicle, in which the main frame is inclined downward.

1.cover frame

The cover frame 400 is a fixing member that protects the main frame 500 including the display unit 530 and allows the main frame 500 to be installed on an indoor roof of the vehicle.

The cover frame 400 is mounted on an interior roof of a vehicle and includes a frame body 410 having an upper opening, and a cover hole 420 formed on one side of the frame body 410. The frame body 410 is preferably composed of a high strength synthetic resin injection. The cover hole 420 is an inlet portion through which the display unit 530 protrudes.

In addition, the cover frame 400 includes a large boss 430 and a small boss 440. The large boss 430 is formed to have a height corresponding to the height of the frame body 410 while penetrating the back and the inner place of the frame body 410. The small boss 440 is formed in the inner position of the frame body 410, the fastener for fixing the bracket 540 of the main frame 500 to the frame body 410 is coupled. The cover frame 400 is installed on the interior roof of the vehicle by a fastening screw s fastened to the large boss 430 through a fastening hole sh at the rear thereof and coupled to the roof surface.

On the other hand, one side of the frame body 410 is provided with a space for installing an indoor light unit (not shown). Since the roof-mounted car television of the present invention is preferably installed at a position where the interior light of the existing vehicle roof is mounted, the roof-mounted car television is provided with a component for embedding a separate indoor light unit that can serve as a conventional indoor light. To this end, the frame body 410 forms a vertical rib 412 on the inner side, and install the indoor light window 414 on one side of the rear surface. In addition, the frame body 410 is provided with an auxiliary cover 416 to prevent foreign matter from entering the interior of the room, the unit is installed.

2. Main frame

The main frame 500 includes a display unit 530 on which a screen is output and includes means for adjusting the forward and backward movement and rotation of the display unit 530. The main frame 500 includes a base 510, a carrier 520, and a display unit 530.

(1) base

The base 510 is a member constituting the basic skeleton of the main frame 500. The base 510 is provided with rack gears 512 in the longitudinal direction on both inner surfaces thereof, and is fixed in the frame body 410 of the cover frame 400. The base 510 is preferably made of steel to protect and shield the display unit 530.

The base 510 is further provided with a pair of brackets 540 coupled to both ends and fixed to the frame body 410 by fasteners s. In addition, the back of the base 510 is provided with a printed circuit board on which various driving circuit elements are arranged.

(2) carrier

The display unit 530 is coupled to a front end of the carrier 520, and is a member movable back and forth of the base 510. The carrier 520 includes a carrier body 521, a support body 522, a front-rear drive part 523, and a rotation drive part 524.

The carrier body 521 is coupled to both ends of the shaft sf and has a pair of pinion gears 525 engaged with the rack gear 512 of the base 510. In addition, the carrier body 521 has guide holes 527 formed in a shape corresponding to both sides of the rear surface.

The support body 522 is a member coupled to the carrier body 521 to rotate left and right, and has a tilt gear 526 installed at one end. The tilt gear 526 is meshed with the sector gear 532 of the display unit 530. In addition, the support body 522 has support arms 529 on both sides thereof, and both ends of the display unit 530 are hingedly coupled to the support arm 529.

The support body 522 has hinge pins 528 on both sides thereof. The hinge pin 528 is movably coupled to the guide hole 527 of the carrier body 521, so that the support body 522 can rotate left and right about the carrier body 521. The left and right pivotal structures of the support body 522 are disclosed in detail in FIGS. 6 and 7. Left and right rotation of the support body 522 is performed manually.

In addition, the support body 522 includes a sensor for detecting that the display unit 530 is in a horizontal state. The sensor outputs a horizontal detection signal of the display unit 530, thereby providing status information of the display unit necessary for inserting and projecting the display unit 530.

The front and rear driving unit 523 is installed in the carrier body 521 and rotates the pinion gear 525 of the carrier body 521 according to the application of a driving voltage, thereby enabling the front and rear movement of the carrier 520. The front and rear drive unit 523 is connected to the front and rear drive motor 523a, the worm gear 523b coupled to the motor shaft of the front and rear drive motor 523a, the worm wheel meshed with the worm gear 523b and the worm wheel. And idle gears meshed with the pinion gear 525.

The rotation driver 524 is installed on the support body 522 and rotates the tilt gear 526 according to the application of a driving voltage, thereby allowing the display unit 530 to rotate and tilt. The rotary drive unit 524 is connected to the rotary drive motor 524a, the worm gear 524b coupled to the motor shaft of the rotary drive motor 524a, the clutch gear meshed with the worm gear 524b and the clutch gear. And idle gears meshed with the tilt gear 526.

The operation of the front-rear drive unit 523 and the rotary drive unit 524 may be controlled by using an operation button installed on the display unit 530 or a remote controller (not shown).

(3) display unit

The display unit 530 is a portion where the screen is output, one end of which is rotatably installed in front of the carrier 520. The display unit 530 protrudes or is inserted into the outside of the cover frame 400 according to the forward and backward movement of the carrier 520. The display unit 530 is provided with a plurality of operation buttons (b) such as a power button, a volume button, a tilt button on one side.

In addition, the display unit 530 has a sector gear 532 meshed with the tilt gear 526 of the carrier body 521 on one side. The display unit 530 protrudes outward through the cover hole 420 by the operation of the carrier 520 moving back and forth according to the rotation of the pinion gear 525, and according to the rotation of the tilt gear 526. Tilt at a preset angle. The tilt angle of the display unit 530 is preferably about 90 to 120 degrees based on the cover frame 400.

As an output screen of the display unit, it is preferable to use a liquid crystal display (LCD) having a thin film transistor (TFT).

8 is a perspective view showing an off-mode state of a roof mounted car television according to a preferred embodiment of the present invention, and FIG. 9 is a perspective view showing an operation mode state of a roof mounted car television according to a preferred embodiment of the present invention.

As shown in FIG. 8, in the loop-mounted car television according to the preferred embodiment of the present invention, the display unit 530 is located in the cover frame 400 in the off mode, and as shown in FIG. 9 in the operating mode. Likewise, the display unit 530 protrudes from the cover hole 420 of the cover frame 400 to form a predetermined angle with the roof surface. Since the display unit 530 is connected by a plurality of gears such as a sector gear, even if an external shock such as sudden stop is applied, the display unit 530 may maintain the set angle as it is.

As described above, the roof-mounted car television according to the embodiment of the present invention is not only convenient to use, but also minimizes the risk of a traffic accident by inserting, protruding, and rotating the display portion automatically.

In addition, the roof-mounted car television according to an embodiment of the present invention can maintain the angle formed by the display portion even when a sudden stop phenomenon occurs during the display operation, so that it is possible to always enjoy a high quality screen regardless of the driving state of the vehicle. .

Claims (4)

In a car television comprising a cover frame and a main frame mounted in the cover frame, The cover frame, A frame body mounted on an interior roof of the vehicle and having an upper opening; A cover hole formed in one side of the frame body; The main frame, A rack gear installed at both sides of the inner surface in a longitudinal direction and fixed to the frame body; A carrier body meshed with the rack gear of the base and having a pair of pinion gears coupled to both ends of the base, a support body having a tilt gear installed at one end and coupled to the carrier body to allow left and right rotation; A carrier installed in the body and formed of a front and rear drive unit for rotating the pinion gear of the carrier body according to the application of a driving voltage and a rotation drive unit installed in the support body and rotating the tilt gear in response to the application of a driving voltage; It is rotatably installed at the front end of the carrier body, and provided with a sector gear engaged with the tilt gear of the carrier body, protrudes through the cover hole in accordance with the rotation of the pinion gear is set in advance according to the rotation of the tilt gear Loop mounted car television comprising a display unit which is tilted at an angle. The method of claim 1, And a pair of brackets coupled to both ends of the base and fixed to the frame body by fasteners. The method of claim 1, The frame body includes a plurality of large bosses penetrating the rear in the inner place and having a height corresponding to the height of the frame body, and fastening screws coupled to the large bosses through the rear surface of the frame body and coupled to the roof surface. Roof mounted car television characterized by. The method of claim 1, The frame body has a vertical rib on the inside, the roof-mounted car television, characterized in that the interior light window is installed on one side of the rear.