JPH079920A - Panel driving mechanism for on-vehicle av equipment - Google Patents

Abstract

PURPOSE:To decrease a number of part items and to narrow an interfering range, in a panel driving mechanism. CONSTITUTION:By horizontally moving a mechanical chassis 2 of turnably supporting a panel 1, it is protruded from a chassis 3, and further by turning the panel 1, a display surface is erected. A planet gear train 12 having output gears 13, 15 is provided in the mechanical chassis 2, to protrude/retract the mechanical chassis 2 from the chassis 3 by rotating the output gear 13, and to turn the panel 1 by rotating the output gear 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel drive mechanism for vehicle-mounted AV equipment (audio / video equipment), and more particularly to a panel drive mechanism suitable for driving a panel having a large display surface.

[0002]

2. Description of the Related Art FIG. 14 shows an example of a panel drive mechanism of a conventional on-vehicle AV device. In the figure, reference numeral 1 denotes a panel having a display surface, which is rotatably supported by a shaft 2a provided upright on a mechanical chassis 2. The segment gear 1 a provided on the panel 1 meshes with the rotary drive gear 5 supported by the mechanical chassis 2.

A guide rack 3a is fixed to a chassis 3 fixed to a dashboard of a vehicle. The guide rack 3a is provided with a guide groove and a rack for supporting the mechanical chassis 2 so as to be horizontally movable. The rack meshes with a horizontal drive gear 4 supported by the mechanical chassis 2. The horizontal drive gear 4 and the rotary drive gear 5 are rotated via a reduction gear train by a horizontal drive motor 6 and a rotary drive motor 7 supported by a mechanical chassis, respectively.

The mechanical chassis 2 is moved in and out of the chassis 3 by the rotation of the horizontal drive motor 6, and the panel 1 is rotated about the shaft 2a by the rotation of the rotary drive motor 7. When the AV device is not used, the panel 1 is stored in the dashboard of the vehicle. There is a display surface on the lower surface in the state where the panel 1 is housed, and the panel 1 is used by being pulled out from the dashboard so that the display surface can be seen. FIG. 15 shows a state in which the panel 1 is driven. Figures (a) to (f)
The state changes in the order of.

[0005]

The above-mentioned panel drive mechanism of the on-vehicle AV equipment is provided with separate drive sources and power transmission mechanisms for horizontal movement and rotation of the panel, and the number of parts is small. There is a problem that the manufacturing cost is high and the reliability is lowered because the number of parts is large.

In addition, the panel is designed so that the user can easily see it.
As shown in FIG. 15 (f), it is rotated until it tilts backward, but the panel rotation center is projected from a fixed position and rotated so that the panel and the dashboard do not interfere with each other. Therefore, the tip of the panel may hit the shift lever of the vehicle or the like, and there is a problem that the vehicle to be mounted is limited.

The present invention has been made in view of the above points, and an object thereof is to provide a highly reliable panel drive mechanism for an in-vehicle AV device in which the number of parts and the manufacturing cost are reduced. Especially.

Another object of the present invention is to provide a panel drive mechanism for an on-vehicle AV device in which a forward projection distance is reduced while the panel is pulled out from the chassis and rotated.

[0009]

According to a panel drive mechanism of an in-vehicle AV device of the present invention, a mechanical chassis that rotatably supports the panel is horizontally moved to project the panel from the chassis, and the panel is further rotated. In a panel drive mechanism of an in-vehicle AV device which raises a display surface by performing the above, a mechanical chassis is provided with a planetary gear mechanism having two output gears, one or both of which rotate simultaneously, and one output gear of the output gears is provided. The mechanical chassis is moved in and out of the chassis by the rotation of, and the panel is rotated by the rotation of the other output gear.

In the panel drive mechanism of the on-vehicle AV equipment, the slider is provided horizontally on the chassis, the mechanical chassis is provided horizontally on the slider, and one output gear of the output gear rotates. The mechanical chassis is moved with respect to the slider, and the relative movement between the mechanical chassis and the slider moves a pandagraph mechanism provided between the slider and the chassis to drive the slider in the same direction as the mechanical chassis. is there.

Further, in the panel drive mechanism of the on-vehicle AV device, the pins that are respectively erected on the two arms constituting the pandagraph mechanism are engaged with the L-shaped groove of the chassis, and one of the output gears. After the mechanical chassis is projected from the chassis by the rotation of the output gear, the panel is rotated so that only the other output gear is rotated, and the back surface of the panel abuts the member integrated with the chassis to integrate the slider and the mechanical chassis. It is configured to be pulled out from the chassis.

[0012]

The point on the panel rotatably supported by the mechanical chassis moves along the locus of the vector of the horizontal movement vector of the mechanical chassis and the movement vector due to the rotation of the panel.
Since there is no horizontal linear portion in the movement by the rotation of the panel, the horizontal movement distance of the mechanical chassis and the rotation angle of the panel are determined if the point on the panel with respect to the member that supports the mechanical chassis movably horizontally is determined. Therefore, by engaging the pin standing on the panel with the guide groove provided in the member that supports the mechanical chassis so as to be horizontally movable, the rotation angles of the two output gears of the planetary gear mechanism are determined and the panel makes a definite movement. .

For example, when a slider for supporting the mechanical chassis to be horizontally movable is provided with a guide groove in which an arc around the panel rotation center and a horizontal straight line portion are provided, a pin on the panel is engaged with the horizontal straight line portion of the guide groove. When they are fitted together, the panel does not rotate but moves horizontally together with the mechanical chassis, and when it engages with the circular arc portion, the mechanical chassis does not move with respect to the slider and the panel rotates.

The panda graph mechanism has two parallel grooves provided between two members that move relative to each other and two X-shaped elements.
A pin provided upright on one arm is engaged, and the distance between the two members is changed by the rotation of the arm. Therefore,
If the arm of the pandagraph mechanism provided between the slider and the chassis is rotated by the relative movement of the mechanical chassis and the slider to drive the slider in the same direction as the mechanical chassis, the stroke of the mechanical chassis with respect to the slider is shortened. Can be moved by the required distance.

If the groove for engaging the pin of the arm of the pandagraph mechanism provided in the chassis is L-shaped and a portion in the moving direction of the mechanical chassis is provided, when the pin of the arm of the pandagraph mechanism engages with that portion. The mechanical chassis can be pulled out from the chassis without any relative movement between the mechanical chassis and the slider. In this state, the amount of protrusion of the mechanical chassis from the dashboard can be minimized by rotating the panel to bring the rear surface into contact with the fixing member and pull out the mechanical chassis.

[0016]

Embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 shown in FIGS. 1 and 2 denotes a panel in which a display device is incorporated, which is rotatably supported by a shaft 2a provided upright on a mechanical chassis 2. On the panel 1, segment gears 1a centering on the shaft 2a are formed at two locations. The display surface of the panel 1 is on the lower side in the state shown in FIG.

Reference numeral 8 shown in FIGS. 1 and 3 denotes a roller rotatably supported by a shaft erected on the chassis 3, and two rollers are provided on each side of the chassis 3 for a total of four rollers. The roller 8 is engaged with guide grooves 9a formed on both side surfaces of the slider 9. That is, the slider 9 is the chassis 3
It is supported so that it can move horizontally. Racks 9b are formed on both sides of the slider 9.

Reference numeral 5 denotes a rotary drive gear that transmits rotation to the panel 1, and is fixed to each side of a hollow shaft 5a supported by the mechanical chassis 2 and meshes with the segment gear 1a.
A horizontal drive gear 4 drives the mechanical chassis 2 in the horizontal direction, and is fixed to a shaft 4 a supported by the mechanical chassis 2.

Guide pins 2 are provided on both sides of the mechanical chassis 2.
Two b's are provided upright, and they project into guide grooves 9c provided on both side surfaces of the slider 9, as shown in FIG. That is, the mechanical chassis 2 is supported by the slider 9 so as to be horizontally movable. Reference numeral 10 denotes a two-stage gear, the rotation shaft of which penetrates the mechanical chassis 2, the outer gear meshes with the rack 9b, and the inner gear is the horizontal drive gear 4
Is meshing with.

As shown in detail in FIG. 12, the planetary gear train 12 is supported by a rotation center shaft 11a provided upright on a stay 11 fixed to the mechanical chassis 2. Reference numeral 13 denotes one output gear of the planetary gear train 12, which has an internal gear and an external gear, the external teeth of which mesh with the horizontal drive gear 4 and the internal teeth of which mesh with the planet gear 14.

Reference numeral 15 denotes the other output gear of the planetary gear train 12, which rotatably supports a plurality of planet gears 14, and the gear formed on the outer periphery meshes with the rotary drive gear 5. 16
Is a clutch gear that limits the torque transmitted to the planetary gear train 12. As shown in detail in FIG. 13, the clutch gear 1
The driving gear 16a of No. 6 is slidably fitted to the driven gear 16b, and the boss 1 press-fitted into the driven gear 16b.
By the compression coil spring 16d arranged between 6c,
Felt 16e interposed between driven gear 16b
Being pressed against.

The worm 18a fixed to the rotary shaft of the motor 18 meshes with the worm wheel of the two-stage gear 17, and the rotation of the motor 18 is transmitted to the planetary gear train 12 via the two-stage gear 17. The details are shown in FIG.
The spur gear of the two-stage gear 17 meshes with the drive side gear of the clutch gear, and the driven side gear 16b is the planetary gear 2 of the planetary gear train 20.
It meshes with 0a.

The planetary gear train 20 is used only for deceleration, and its internal gear 20b is prevented from rotating. The output gear 20c of the planetary gear train 20 is the planetary gear train 12
It meshes with the planetary gear 14 of. The leaf spring 19 fastened to the stay 11 is used to prevent the two-stage gear 17 from coming off and to receive the thrust of the worm 18a.

As shown in FIGS. 3 and 4, the arm 21
Pins 21a, 21b, and 21c are provided upright on the pin 21. The pin 21c penetrates the arm 22, and the arms 21 and 22 form a panda kraft mechanism. The pin 21c also penetrates the guide groove 3b of the chassis 3. Further, the pin 21 a is inserted into the L-shaped groove 3 c of the chassis 3 and the pin 21 b is inserted into the guide groove 9 of the slider 9.
d and the circular arc groove 23b of the lever 23 are inserted.

A pin 22a and a pin 22b are erected on the arm 22. The pin 22a is formed in the L-shaped groove 3 of the chassis 3.
The pin 22b is inserted through the guide groove 9e of the slider 9. The lever 23 is rotatably supported by a shaft 9f erected on the slider 9, and a pin 23a erected on the lever 23 is inserted through a guide groove 2c of the mechanical chassis 2.

The torsion coil springs 24 and 25 are fixed to the chassis 3, and the hooks 21d of the arm 21 are respectively provided.
And engaging the hooks 22c of the arm 22 and engaging them in FIG.
In the right direction. The pin 9g provided upright on the slider 9 is inserted through the guide groove 3b of the chassis 3.
As shown in FIG. 5, the pin 1 b provided upright on the panel 1 is engaged with the guide groove 9 c of the slider 9. Reference numeral 26 is a vehicle dashboard.

Next, the operation of the embodiment having the above construction will be described with reference to FIGS. 4 and 5 show a state in which the panel 1 is housed in the chassis. By the rotation of the motor 18, the mechanical chassis 2 is pushed out from the chassis 3 as shown in FIGS. 6 and 7, and the panel 1 is further rotated as shown in FIGS. 8 and 9. When the rear surface of the panel 1 comes into contact with the du board 26, the mechanical chassis 2 is further pulled out by the rotation of the panel 1 as shown in FIGS. 10 and 11.

In the state shown in FIGS. 4 and 5, when the motor 18 rotates in the direction of pushing out the mechanical chassis 2, the rotation is transmitted to the planetary gear train 12. Since the pin 1b of the panel 1 is engaged with the horizontal portion of the guide groove 9c of the slider 9, the panel 1 cannot rotate and only the output gear 13 of the planetary gear train 12 rotates. The rotation of the output gear 13 is transmitted to the two-stage gear 10 via the horizontal drive gear 4 and the slider 9
The mechanical chassis 2 is moved leftward with respect to the slider 9 by meshing with the rack 9b.

As described above, when the mechanical chassis 2 is fed, since the pin 23a of the lever 23 is engaged with the guide groove 2c of the mechanical chassis 2, the lever 23 rotates counterclockwise about the slider shaft 9f. Is rotated in the direction. Then, the pin 21 b of the arm 21 is connected to the arc groove 23 of the lever 23.
The arm 21 is pushed by b and is rotated clockwise.

Since the pin 21a of the arm 21 is engaged with the portion of the L-shaped groove 3c perpendicular to the mechanical chassis moving direction, it cannot move in the mechanical chassis moving direction, and the pin 21c of the arm 21 is left in the guide groove 3b. Move in the direction. Therefore,
The arm 22 is pushed by the pin 21c and rotates counterclockwise. Since the guide grooves 9d and 9e of the slider 9 are engaged with the pin 21b of the arm 21 and the pin 22b of the arm 22, respectively, the slider 9 is fed leftward with respect to the chassis 3. The moving distance of the mechanical chassis 2 is
Is the sum of the moving distance of the slider 9 with respect to the slider 9 and the moving distance of the slider 9 with respect to the chassis 3, and is sent largely to the left.

As shown in FIG. 7, when the pin 1b of the panel 1 comes into engagement with the inclined portion of the guide groove 9c of the slider 9, the panel 1 comes to rotate and the planetary gear train 1
2 rotates the output gear 13 and the output gear 15, and the mechanical chassis 2 is decelerated and pushed out.

As shown in FIG. 9, when the pin 1b of the panel 1 comes into engagement with the arc portion of the guide groove 9c of the slider 9, the center of the arc portion coincides with the center of the shaft 2a. The mechanical chassis 2 and the slider 9 are stopped, and only the panel 1 is rotated by the planetary gear train 12. At that time, as shown in FIG. 8, the pin 21a of the arm 21 is at the corner of the L-shaped groove 3c, and the pin 22a of the arm 22 is at the corner of the L-shaped groove 3d. In this state, the slider 9 is held in a stopped state by the elastic force of the torsion coil springs 24 and 25. The torsion coil springs 24 and 25
Has sufficient elasticity to prevent the slider 9 from being moved by the vibration of the vehicle.

When the panel 1 is further rotated counterclockwise from the position shown in FIG.
The mechanical chassis 2 and the slider 9 are pulled out from the chassis 3 against the elasticity of the torsion coil springs 24 and 25. As shown in FIG. 11, when the pin 1b comes to the end of the guide groove 9c, the rotation of the panel 1 is stopped. Although this state is the use state, the display surface of the panel 1 is inclined so that the user can easily see it. The operation of housing the panel 1 in the chassis is performed by reversing the operation of the motor 18 in the opposite manner.

[0034]

According to the panel drive mechanism of the in-vehicle AV device of the present invention, the horizontal drive of the mechanical chassis supporting the panel and the rotation of the panel are performed by a common planetary gear train, and the number of parts and manufacturing are performed. Cost is reduced and reliability is increased.

Further, since the mechanical chassis is pulled out by the rotation of the panel at the final stage, the amount of protrusion to the front is minimized, and the panel having a wide display surface is moved in and out of the chassis without interfering with the shift lever or the like. It becomes possible.

[Brief description of drawings]

FIG. 1 is a plan view showing a partial cross section of a panel drive mechanism of an on-vehicle AV device according to an embodiment of the present invention.

FIG. 2 is a side view showing a part of the panel drive mechanism with the parts removed and seen through.

FIG. 3 is a rear view showing a part of the panel drive mechanism removed and seen through.

FIG. 4 is a plan view showing a part of the panel drive mechanism removed and seen through.

FIG. 5 is a side view showing a part of the panel drive mechanism with the parts removed and seen through.

FIG. 6 is a plan view showing an operating state of the panel drive mechanism with some components removed and seen through.

FIG. 7 is a side view showing the state of FIG. 6 of the panel drive mechanism with some components removed and seen through.

FIG. 8 is a plan view showing another operation state of the panel drive mechanism with some components removed and seen through.

FIG. 9 is a side view showing the state of FIG. 8 of the panel drive mechanism with some components removed and seen through.

FIG. 10 is a plan view showing still another operation state of the panel drive mechanism with some components removed and seen through.

FIG. 11 is a side view showing the state of FIG. 10 of the panel drive mechanism with some components removed and seen through.

FIG. 12 is an exploded perspective view showing a power transmission system of the panel drive mechanism.

FIG. 13 is a sectional view showing a clutch gear of the panel drive mechanism.

14A is a plan view showing an example of a conventional panel drive mechanism, FIG. 14B is a side view thereof, and FIG. 14C is a rear view thereof.

15 is a side view showing the operation of the conventional panel drive mechanism shown in FIG.

[Explanation of symbols]

1 panel, 1a segment gear, 1b pin 2 mechanical chassis, 2a shaft, 2b guide pin, 2c
Guide groove 3 Chassis, 3a guide rack, 3b guide groove,
3c L-shaped groove 3d L-shaped groove 4 Horizontal drive gear, 4a Shaft 5 Rotational drive gear, 5a Hollow shaft 6 Horizontal drive motor 7 Rotational drive motor 8 Roller 9 Slider, 9a Guide groove, 9b Rack, 9c
Guide groove 9d Guide groove, 9e Guide groove, 9f shaft, 9g pin 10 Two-stage gear 11 Stay, 11a Rotation center shaft 12 Planetary gear train 13 Output gear 14 Planetary gear 15 Output gear 16 Clutch gear, 16a Drive side gear, 16b Covered Drive side gear 16c Boss, 16d Compression coil spring, 16e Felt 17 Two-stage gear 18 Motor, 18a Worm 19 Leaf spring 20 Planetary gear train, 20a Planetary gear, 20b Internal gear, 20c Output gear 21 Arm, 21a pin, 21b Pin , 21c
Pin, 21d Hook 22 Arm, 22a Pin, 22b Pin, 22c
Hook 23 Lever, 23a pin, 23b Arc groove 24 Torsion coil spring 25 Torsion coil spring 26 Dashboard

Claims (3)

[Claims] 1. A panel drive mechanism for an in-vehicle AV device, wherein a mechanical chassis that rotatably supports a panel is horizontally moved to project the panel from the chassis, and the panel is further rotated to erect a display surface. One or both of the mechanical chassis rotate simultaneously 2
An in-vehicle AV device that is provided with a planetary gear mechanism having two output gears, and one of the output gears rotates to move the mechanical chassis in and out of the chassis, and the other output gear rotates the panel. Panel drive mechanism. 2. A slider is provided on a chassis so as to be horizontally movable, the mechanical chassis is provided on the slider so as to be horizontally movable, and the mechanical chassis is moved with respect to the slider by the rotation of one of the output gears. 2. The panel drive mechanism for an on-vehicle AV device according to claim 1, wherein a pandagraph mechanism provided between the slider and the chassis is moved by relative movement of the chassis and the slider to drive the slider in the same direction as the mechanical chassis. 3. A mechanical chassis is projected from the chassis by rotating one output gear of one of the output gears by engaging pins respectively erected on two arms constituting the panda graph mechanism with L-shaped grooves of the chassis. The slider and the mechanical chassis are integrally pulled out from the chassis by rotating the panel so that only the other output gear is rotated after the rotation, and the back surface of the panel abuts a member integrated with the chassis. Panel drive mechanism for in-vehicle AV equipment.