KR100500293B1 - Lifter for Monitor Tilting Apparatus Audio/Video System of Motor Vehicle - Google Patents

Abstract

The present invention relates to a lifter for an AV system monitor tilting device of a vehicle which is capable of capturing a monitor tilted at 90 °.

Description

Lifter for Monitor Tilting Apparatus Audio / Video System of Motor Vehicle}

The present invention relates to a lifter for an AV system monitor tilting device of a vehicle which is capable of capturing a monitor tilted at 90 °.

Background Art Conventionally, as disclosed in the publications of Japanese Patent Laid-Open No. 2000-33789 and Utility Model Registration No. 271289 have been proposed as a monitor tilting apparatus for a vehicle audio / video system (hereinafter, AV system). According to the monitor tilting device of this publication, the monitor is pushed and pulled by the front and rear transfer mechanism composed of the rotational power of one motor, a tilt guide attached to the rack, and a hinge connecting the tilt guide and the monitor. Will tilt.

However, after the monitor is tilted by 90 °, it cannot be tilted to the initial position without the catching unit means for lifting. Therefore, since the tilting angle of the monitor (for example, 52 °) is limited, there is a problem in that only the tape deck 103 is attached and the CD changer 105 is separately mounted.

As a conventional monitor tilting device for solving the limitation of the tilting angle, it is proposed to be disclosed in the publications of Korean Patent No. 352881 and Utility Model No. 213032. These monitor tilting devices use two motors instead of one conventional motor: one motor transfers power to the front and rear transport mechanism that pushes and pulls the bottom of the monitor, and the other motor powers the lifter used to lift the monitor. By doing this, the monitor can be tilted 90 degrees.

As such, two motors are used to tilt the monitor at 90 °, and each motor has a separate power transmission device for transmitting power to the front and rear transfer mechanism and the lifter, thereby increasing the volume of the AV system, thereby increasing the space of the instrument panel. As it occupies a lot, it is not suitable for use especially in luxury cars, and the workability as the number of parts increases is inefficient and increases the overall cost of the vehicle at high cost.

In addition, the pivot arm is placed on the guide while the monitor is tilted by 45 °, but the pivot arm moves away from the guide when the monitor is tilted greater than 45 °, so to lift the monitor back to its original position, It has a complicated mechanism to pull it backwards and position it with the guide.

In addition, the lifter is connected to the monitor and the hinge, which is a hassle to disassemble the hinge when the monitor is removed. When the hinge is exposed to the outside, vibration is generated at the assembled portion of the hinge due to transmission of vehicle vibrations. It may adversely affect the monitor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object thereof is to provide a lifter for an AV system monitor tilting apparatus for a vehicle that can stably hold a tilted monitor despite its simple configuration.

The present invention for achieving the above object is a lifter for AV system monitor tilting apparatus of a vehicle tilting a monitor disposed on the front of the housing, the lift unit for hitting the monitor upwards, and slidably installed on the lift unit And a capture unit to capture the monitor.

According to this configuration, it is possible to stably hold the tilted monitor despite the simple configuration.

In the above-described configuration, the lift unit includes a pivot arm formed at the tip of a lifting groove disposed at a protrusion installed on one side of the monitor, and a vertical trajectory determining member for guiding the rotational trajectory of the tip of the pivot arm in a vertical direction. When configured, the tip of the pivot arm is guided only up and down so that the operation mechanism is simply performed.

In addition, the catching unit is preferably implemented by a catching link slidably installed on the pivot arm and a catching piece formed at the tip of the catching link to capture the protrusion.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a state where a monitor is 0 ° in an AV system for a vehicle having a monitor tilting device according to a preferred embodiment of the present invention, and FIG. 2 is a perspective view showing main parts of the monitor tilting device when the monitor is 0 °. 3 is a rear view of FIG. 2, FIG. 4 is an exploded perspective view illustrating the planetary gear unit of FIG. 2, and FIG. 5 is a monitor in a vehicle AV system having a monitor tilting device according to an exemplary embodiment of the present invention. FIG. 6 is a perspective view of a 90 ° state, and FIG. 6 is a perspective view illustrating a main part of the monitor tilting apparatus in a state where the monitor is 0 °, and FIG. 7 is a rear view of FIG. 6.

As shown in FIG. 1 and FIG. 5, the AV system for a vehicle is composed of a housing 100 forming an external appearance and a monitor 120 disposed on the front surface 102 of the housing 100. The housing 100 is installed in the instrument panel. This front surface 102 is provided with a tape deck 103 and a CD changer 105.

As shown in FIGS. 1 to 7, the monitor tilting device of the vehicular AV system tilting the monitor 120 at 0 ° to 90 ° includes a front and rear transfer mechanism 300 for transferring the lower side of the monitor 120 back and forth, It is composed of a lifter 400 for hitting the monitor 120 upward and one forward and backward transfer mechanism 300 and one motor 700 for transmitting power to the lifter 400.

In the above-described configuration, the lifter 400 is largely composed of a lift unit 500 and a capture unit 600 that is slidably installed in the lift unit 500.

The lift unit 500 includes a pivot arm 510 installed in the power transmission member 530 that receives the power of the motor 700 and a vertical trajectory determination member 550 for sliding and guiding the pivot arm 510 up and down. Consists of.

The power transmission member 530 is implemented as a planetary gear unit 530 having a compact structure. As shown in FIG. 4, the planetary gear unit 530 has a ring gear 531, a double gear disposed at a center portion of the ring gear 531, a ring gear 531, and a sun gear 533 interposed therebetween. Carrier 537 connected to pinions 535a and 535b and double pinions 535a and 535b.

The ring gear 531 is disposed on the center of rotation shaft 240 installed on the support plate 200 installed in the housing 100, and teeth are formed on the inner circumferential surface and the outer circumferential surface, respectively.

The sun gear 533 is coupled to the rotational center shaft 240 such as the fourth gear 539 described later to receive power transmitted from the motor 700. Accordingly, when the fourth gear 539 rotates, the rotation center shaft 240 rotates and the sun gear 533 rotates. Therefore, the sun gear 533 functions as an input source in this embodiment.

The double pinions 535a and 535b are meshed with the sun gear 533 and the ring gear 531 at the same time. Therefore, when the sun gear 533 is rotated (rotated), the ring gear 531 is not fixed, and each of the double pinions 535a and 535b also rotates. The carrier 537 is not moved by the rotating double pinions 535a and 535b.

The sun gear 533 receives the rotational power of the motor 700 through the reduction gear unit. That is, the reduction gear unit includes a first gear unit 720 composed of a worm gear 720a and a first spur gear 720b disposed on a first shaft engaged with the worm 710 of the motor 700, and the first gear unit 720 includes: A second gear 730 meshed with the spur gear 720b, a second gear 740, a third gear 750 meshed with the second gear 740, and a third gear 750 meshed with the third gear 750; Four gears 539 are rotatably disposed on the support plate 200. The fourth gear 539 finally transmits power to the sun gear 533.

Looking at the operation of the planetary gear unit 530 is as follows.

That is, the sun gear 533, the double pinion 535a and 535b, the ring gear 531 rotate and the carrier 537 does not move until the monitor 120 is tilted by 90 degrees. The lift unit 500 is also rotated by the pressing of the protrusion 130 by the carrier 537 which does not move (this turning is referred to as 'weight turning'). When tilting the monitor 120 back to 0 degrees (in place), the monitor 120 is tilted by 90 degrees, so that when the monitor 120 is moved backward, the forward and backward transfer mechanism 300 described later does not move. Will not. Therefore, while the ring gear 531 connected to the front and rear transfer mechanism 300 is temporarily stopped or fixed, the double pinions 535a and 535b revolve on the ring gear 531 by the rotation of the sun gear 533. The double pinions 535a and 535b rotate the carrier 537, whereby the pivot arm 510 also turns (this turning is referred to as a 'lit turning') while hitting the protrusion 130 upwards. Given. Then, when the monitor 120 is slightly lifted, the stop / fixation of the ring gear 531 is released and tilts back into place by the front and rear transfer mechanism 300. From this moment, when the projection 130 is lifted up with the capture piece 600a described below and the projection piece 130 is released while the capture piece 600a is slid backward, the lift unit 500 is disposed at the original position while the pivot arm ( The turning of 510 is stopped.

Like this, it turns into planetary gear type only when hitting the monitor, so it can simply tilt 90 degrees with a simple mechanism.

The pivot arm 510 is installed on the protrusion 130 and the carrier 538 installed on one side of the monitor 120. That is, the U-shaped lifting groove 510a for lifting the protrusion 130 is formed at the front end side of the pivot arm 510, and the rotary protrusion 538 protruding from the carrier 537 near the center of the pivot arm 510. Is pierced with a slot 590 in which it is slidably accommodated. The size of the lifting groove 510a is preferably such that it does not move back and forth in the state in which the protrusion 100 is seated. In addition, the other end of the pivot arm 150 is slidably supported by the support shaft 220 protruding on the support plate 200 so that the pivot arm 510 is rotatable by its own weight or by the carrier 537. The support part 585 is formed.

The center of the pivot arm 510 has a predetermined shape corresponding to the relative movement trajectory of the central axis 240 according to the rotation of the pivot arm 510 so as not to interfere with the central axis 240 when the pivot arm 510 is rotated. Slot 580 is perforated.

The vertical trajectory determining member 550 is composed of a sliding unit and a vertical linear guide unit 560. The sliding unit is implemented by the above-described slot 590 and the support portion 585, the vertical guide unit 560 is installed on the support plate 200, the guide slot 561 for guiding up and down is installed perforated have. Guide protrusions 561a guided along the slots 561 are installed in the pivot arm 510.

Through the sliding unit and the vertical linear guide unit 560, when the front and rear transfer mechanism 300 continues to push the monitor 120 forward, the projection 130 is pressed while entering the lifting groove 510a, accordingly The pivot arm 510 is rotated about the support shaft 220. When the pivot arm 510 is rotated, since the guide protrusion 561a descends along the slot 561, the lifting groove 510a descends in a straight line without drawing an arc, and at the same time supports the change in the diameter. And slot 590 to slide in a direction perpendicular to rotation. Therefore, the tip of the pivot arm 510 is lowered in a straight line so that it does not interfere with the tilted monitor 120.

On the other hand, the front and rear transfer mechanism 300 is composed of a rack 310 and the front and rear transfer member 320 is provided with the rotational power of the ring gear 531. The front and rear transfer member 320 is coupled to one side of the monitor 120 by a hinge 350a, the other end of which is the first front and rear transfer lever 330a to which the rack 310 is coupled, and one end of the hinge 350b. By the second front and rear transfer lever 330b coupled to the other side of the monitor 120 and the first and second transfer lever 330a and the connecting frame 340 for connecting the second front and rear transfer lever 330b. The rack 310 is engaged with the pinion 430 coaxial with the gear 410 engaged with the ring gear 531.

Therefore, when the rack 310 is moved back and forth, the front and rear conveying members are also conveyed back and forth together. In addition, the monitor 120 tilted 90 degrees is disposed on the connection frame 340.

As described above, since the front and rear transfer mechanism 300 and the lifter 400 can be operated through one motor and the planetary gear type, the structure of the monitor tilting device can be greatly simplified.

In addition, the capture unit 600 is slidably installed on the pivot arm 510 to further capture the protrusion 130. That is, the capture unit 600 has a capture link 600b having a shape similar to the above-described pivot arm 510, and a capture piece 600a having a groove having a lower portion than the upper portion before and after the front end of the capture link 600b. And, the other end of the capture link 600a is composed of a sliding protrusion 610 is disposed in the slot 570 installed in the pivot arm 510. Accordingly, when the pivot arm 510 rotates downward, the sliding protrusion 610 slides forward while the capture link 600b also rotates. The sliding piece 600a blocks the upper end of the projection 130 through the sliding, so that the entire projection 130 is captured by the lifting groove 510a and the capture piece 600a. When the protrusion 130 is captured, the vibration of the monitor 120 due to vibration of the vehicle or the engine may be completely caught, thereby preventing the monitor from leaving due to tilting of the monitor. This capture piece 600a also functions to arrange the capture member 600 in its original position as described above.

In addition, the capture link 600b is also preferably provided with a guide protrusion 563a guided along the guide slot 563 to guide up and down on the vertical guide unit 560. This guide slot 563 has a shape in which the uppermost part is inclined backward as shown in Figs. This is to allow the catch link 600b to slide forward to some extent when the catch piece 600a is directed downward. Also, for this purpose, the guide protrusion 563a is also installed in the slot 536b installed in the pivot arm 510.

Hereinafter, the operation of the configuration according to an embodiment of the present invention.

First, as shown in FIG. 1, the monitor 120 closes the front surface 102 of the housing 100 as initially shown in the CLOSE state (0 °) of the monitor 120. The monitor tilting device in this state is in the position as shown in FIG.

Then, when the motor 700 is operated by operating a switch, the monitor 120 is lowered downward while the upper end is kept straight while the lower end comes forward. That is, it is transmitted to the sun gear 533 of the planetary gear unit 530 through the reduction gear units 7200, 730, 740, 750, and 539 continuously engaged with the worm 710.

Subsequently, as the sun gear 533 is rotated, the ring gear 531 rotates through the double piners 535a and 535b, and the pinion (coaxial) is coaxial with the gear 410 engaged with the outer circumferential surface of the ring gear 531. 430 is to linearly move the rack 310 forward. Accordingly, the lower end of the monitor 120 is moved forward by the front and rear transfer member 320. When the monitor 120 is tilted about 60 degrees, the protrusion 130 enters and lifts the lifting groove 510a, thereby pivoting the pivot arm 510 (the turning is called a 'gravity swing'). The pivot arm 510 is controlled by the above-described sliding unit and the vertical linear guide unit 560 according to this self-rotation.

As such, as the linear movement of the front and rear transfer member 320 and the self-rotation of the pivot arm 510 are performed according to the rotation of the ring gear 531, the monitor 120 of the housing 100 is as shown in FIG. 5. A 90 ° tilted from the front face 102 results in a complete OPEN state. At this time, the catch link 600b slides until the guide protrusion 563a reaches the guide slot 563 which is a straight section from the inclined guide slot 563 according to the self-rotation of the pivot arm 510. ) Will wrap around and capture the whole. Then, from the guide slot 563 which is a straight section, the projection 130 is moved downward in the captured state.

On the other hand, when closing the monitor 120 in the fully opened state as described above, if the motor 700 is rotated in the reverse direction, the rack 310 is to be conveyed backward through the ring gear 531. However, since the monitor 120 and the front and rear conveying member 320 are located side by side on the same line, the monitor 120 does not try to be heard. Therefore, the ring gear 531 does not rotate through the rack 310. That is, the ring gear 531 is converted to the planetary gear type is fixed. Accordingly, the rotation of the sun gear 533 causes the double planetary gears 535a and 535b to revolve with respect to the ring gear 531, thereby causing the carrier 537 to rotate. Rotation of carrier 537 causes pivoting arm 510 to pivot. Therefore, the lifting groove 510a of the pivot arm 510 gently lifts the monitor 120 while hitting the protrusion 130 upward. Then, the pause of the ring gear 531 is released (at this time, the pivot arm 510 is rotated by its own weight until the protrusion 130 is out of the catch piece 600a), and then the front and rear conveying member 320 ) Is pulled backward, and the CLOSE operation of the monitor 120 is completed and returns to the state as shown in FIG. 2.

As such, since the lifting groove 510a of the pivot arm 510 hits the protrusion 130 temporarily, 90 ° tilting of the monitor 120 becomes possible. Thus, as the monitor 120 is tilted 90 ° from the front face 102 of the housing 100, a full open state is possible, the front face 102 of the body 100 is not completely covered by the monitor 120 and is fully exposed. In addition to the existing cassette tape device, it can be used by mounting the CD device together.

Lifter for AV system monitor tilting apparatus of a vehicle according to an embodiment of the present invention can be implemented without various modifications within the scope of the technical idea of the present invention without being limited to the above-described embodiment.

According to the lifter for AV system monitor tilting apparatus of the vehicle of the present invention described above, the lifter for AV system monitor tilting apparatus of the vehicle which tilts the monitor arrange | positioned in front of a housing, The lift unit which strikes the said monitor upwards, By adopting the configuration of the capture unit that is slidably installed in the lift unit to capture the monitor, it is possible to reliably eliminate the monitor phenomenon caused by the vibration of the vehicle by holding the projection of the monitor.

In addition, the capture piece not only functions to position the lifter to its original position but also the projection of the monitor is arranged in the groove of the pivot arm, so that the monitor can be easily removed.

1 is a perspective view showing a state in which a monitor is 0 ° in a vehicle AV system having a monitor tilting device according to a preferred embodiment of the present invention.

Figure 2 is a perspective view showing the main part of the monitor tilting device in the state where the monitor is 0 °.

3 is a rear view of FIG. 2.

4 is an exploded perspective view of the planetary gear unit of FIG. 2;

Fig. 5 is a perspective view of a state where a monitor is 90 ° in an AV system for a vehicle having a monitor tilting device according to a preferred embodiment of the present invention.

6 is a perspective view showing the main part of the monitor tilting apparatus in a state where the monitor is at 0 °;

7 is a rear view of FIG. 6.

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

100 housing 102 front

120: monitor 130: projection

300: front and rear transfer mechanism 310: rack

320: front and rear transfer member 330a, 330b: front and rear transfer lever

340: connection frame 350a, 350b: hinge

400: lifter 500: lift unit

510: pivot arm 510a: lifting groove

530: planetary gear unit 531: ring gear

533: sun gear 535a, 535b: planetary gear

537: carrier 550: vertical trajectory determining member

560: up and down linear guide unit 600: capture unit

600a: Capture Piece 600b: Capture Link

700: motor

Claims (3)

In the lifter for the AV system monitor tilting device of a vehicle for tilting a monitor disposed on the front of the housing, A lift unit for hitting the monitor upwards, A lifter for an AV system monitor tilting device of a vehicle, wherein the lift unit is slidably installed and includes a capture unit to capture the monitor. According to claim 1, wherein the lift unit is a pivot arm formed on the tip of the lifting groove disposed on the projection installed on one side of the monitor and the vertical trajectory determination member for guiding the rotational trajectory of the tip of the pivot arm in a vertical line Lifter for AV system monitor tilting device of a vehicle, characterized in that consisting of. The vehicle according to claim 1 or 2, wherein the capture unit comprises a capture link slidably mounted to the pivot arm, and a capture piece formed at a tip of the capture link to capture the protrusion. Lifter for AV system monitor tilting device.