JP3274964B2 - Automotive electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle electronic device for driving an operation panel, and more particularly, to a vehicular in-vehicle electronic device which is useful for hiding the in-vehicle electronic device when a user leaves the vehicle to prevent theft. Equipment related.

[0002]

2. Description of the Related Art There is known a device for hiding electronic devices mounted on a vehicle to prevent theft when the user leaves the vehicle. FIGS. 8 and 9 show an example of an anti-theft device for in-vehicle electronic devices proposed by the present applicant in Japanese Patent Application No. 6-339875.
Shown in In the figure, reference numeral 104 denotes a chassis for accommodating on-vehicle audio equipment, which is inserted and mounted in a mounting recess of a car. The escutcheon 106 is fixed to the chassis 104 and rotatably supports the frame 107.

FIG. 8A shows a state of use of an on-vehicle acoustic device, and an operation panel 108 is located at the front.
Reference numeral 108a denotes a cassette insertion port provided on the operation panel 108. When the start switch of the anti-theft device is pressed in the state shown in FIG. 8A, FIG. 8B and FIG.
The frame 107 is rotated to the horizontal position as shown in FIG. In this state, the cover 105 is moved from a position above the inside of the chassis 104 into a groove provided inside the frame 107. At the same time, the operation panel 108 is moved backward. FIG. 9A shows a state in which the cover 105 and the operation panel 108 have moved.

Next, as shown in FIGS. 9 (b) and 9 (c), the frame 107 is rotated to its original vertical position.
In this state, the cover 105 covers the operation panel 108, so that the in-vehicle audio device cannot be seen and theft is prevented. The operation opposite to the above is performed to bring the on-vehicle audio device into a use state.

[0005]

In the above-described conventional anti-theft device for in-vehicle electronic equipment, since many members such as the cover 105, the operation panel 108, and the frame 107 are moved, these moving mechanisms are complicated and cost is reduced. There was a problem that it took. Furthermore, since the operation panel 108 having the insertion / ejection port 108a for a disk or cassette tape moves in the front-rear direction, the operation panel 108 is separated from the playing device, and it is necessary to devise a mechanism for inserting / ejecting the disk or cassette tape. Yes, there is a problem that the mechanism becomes complicated and the cost increases.

In some cases, the performance device is moved integrally with the operation panel. In such a case, the above problem does not occur. However, since the entire heavy device is moved, the driving mechanism becomes large, and the operating noise and power consumption increase. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-vehicle electronic device capable of preventing theft only by driving an operation panel.

Another object of the present invention is to allow the operation panel to move to a position where it does not hinder insertion when the recording medium is directly inserted into the electronic device main body without passing through the operation panel disposed in front of the electronic device main body. The present invention is to provide an in-vehicle electronic device.

[0009]

According to the present invention, there is provided an in-vehicle electronic device having an operation panel disposed in front thereof, a drive mechanism for driving the operation panel provided, and a normally used operation surface of the operation panel serving as a front surface. In-vehicle which is driven to move a rotation axis while rotating the operation panel by the driving mechanism so as to transition between a first state and a second state in which the back side of the operation surface of the operation panel is the front side. In the electronic device for use, the rotation axis in the middle of the movement when the operation panel is in a substantially horizontal state is positioned at the end of the movement range of the rotation axis. If the rotation axis of the operation panel is moved between the upper front part and the lower front part of the electronic device, and the operation panel is rotated by 180 ° in the meantime, the operation panel can be turned upside down by rotating in front of the on-vehicle electronic device. it can. The operation panel is lightweight, and the driving mechanism can be simplified by driving only the operation panel.

[0010] In the above-mentioned electronic device for vehicle mounting, a second lever and a cam plate are rotatably supported coaxially on a first lever rotatably provided on the main body of the electronic device, and a non-circular shape is provided on the cam plate. A gear, a cam groove along the outer periphery of the non-circular gear, and a first gear centered on a rotation axis of the cam plate, and the first lever rotatably supports the second gear, The second gear is provided with an internal gear centered on the rotation axis, and the third gear supported by the electronic device main body meshes with the non-circular gear, and the shaft of the third gear engages with the cam groove. The first gear, the second gear, and the internal gear are sequentially meshed with each other, and the second lever is rotatably supported on a side end of the operation panel via a shaft. A fourth gear centered on the operation panel is fixed to the operation panel. A fifth gear rotatably supported on a shaft erected on the first gear, a sixth gear centered on a rotation center of the second lever is provided on the first lever, and the sixth gear; When the fifth gear and the fourth gear are sequentially engaged with each other and the third gear is rotationally driven, the mechanism is simplified by forming a driving mechanism using a lever and a gear. .

In each of the on-vehicle electronic devices, the back surface of the operation panel is used as a front panel when not in use, and the back surface of the operation panel is used as a blind plate.
By using the back of the operation panel as a blind board,
The need for a blind plate as a separate component is eliminated, and space saving and cost reduction are achieved.

Further, in each of the on-vehicle electronic devices, a position in the middle of movement at which the operation panel becomes substantially horizontal may be detected, and the operation panel may be stopped at that position. In the in-vehicle electronic device, the recording medium is not provided in the operation panel, but is provided in the electronic device main body disposed behind the operation panel, so that the recording is performed at the stop position where the operation panel is substantially horizontal. The front of the medium insertion opening is widely opened, so that a thick recording medium such as a cassette tape can be easily inserted.
Further, since the recording medium is directly inserted into the electronic device main body without passing through the operation panel, the moving path of the recording medium is shortened, and the mounting mechanism of the recording medium can be simplified.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a vehicle-mounted audio device to which the present invention is applied will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a main part of an on-vehicle audio device according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a main body chassis of the in-vehicle audio device, which supports a drive mechanism of the operation panel 5 shown in FIGS. The main body chassis 1 is arranged in a space for installing audio equipment of a car. A member fixed to the main body chassis 1 and supporting the drive mechanism is also referred to as a main body chassis 1.

The shaft 1a erected on the main body chassis 1 is a first shaft.
Is rotatably supported. The shaft 1b erected on the main body chassis 1 rotatably supports the third gear 6. An arc-shaped guide groove 2e centered on the rotation axis is formed near the edge of the first lever 2, and this guide groove engages with the shaft 1b to stabilize the rotation of the first lever 2. The main body chassis 1 rotatably supports a gear train from the motor 9 to the third gear 6.

The shaft 2b erected on the first lever 2 is a second shaft.
The lever 3 and the cam plate 4 are rotatably supported. The shaft 2d erected on the first lever 2 is connected to the second lever 2d.
And engages with the guide groove 3c provided in the lever 3 to stabilize the rotation of the second lever 3. A shaft 2c provided upright on the first lever 2 rotatably supports the second gear 7. Further, a sixth gear 2a centering on the shaft 2b is formed at the edge of the first lever.

The second lever 3 rotatably supports the operation panel 5 by fitting a hole 3d with a shaft 5a provided upright on the operation panel 5. A fourth gear 5b is fixed to the operation panel 5 so as to center on the shaft 5a. As shown in FIG. 4, a fifth gear 8 rotatably supported by a shaft 3b provided upright on the second lever 3 meshes with a fourth gear 5b and a sixth gear 2a.

Further, an internal gear 3a formed on the second lever 3 so as to be centered on the rotation axis is engaged with the second gear 7. The first lever 2 is biased by a torsion coil spring 18 in the counterclockwise direction in FIG. Therefore, play due to backlash between the gears is eliminated.
Also, the micro switch 1 fixed to the first lever 2
5, 16 and 17 face the second lever 3, and detect the rotational position of the second lever 3.

The cam plate 4 is also shown in an inverted state in FIG. The cam plate 4 is mounted on the apparatus with its posture changed from the inverted state as shown by the arrow. The cam plate 4 is formed with a first gear 4c centered on a rotation shaft and an arc-shaped guide groove 4d. Further, an elliptical gear 4a and a cam groove 4b are formed. The cam groove 4b is formed along the outer periphery of the elliptical gear 4a,
The distance between the pitch points on the radiation from the rotation axis of the elliptical gear 4a and the cam groove 4b is constant.

As shown in FIG. 3, the shaft 2c is engaged with the guide groove 4d of the cam plate 4 to stabilize the rotation of the cam plate 4. The elliptical gear 4a of the cam plate 4 meshes with the third gear 6, and the cam groove 4b engages with the shaft 1b. Also, the first gear 4 formed on the cam plate 4
c meshes with the second gear 7. As described above, the second gear 7 also meshes with the internal gear 3a formed on the second lever 3. That is, the tooth width thickness of the second gear 7 is wider than the thickness of the first gear 4c and the internal gear 3a.

The gear train from the motor 9 to the third gear 6 is also shown in FIG. The worm 9a fixed to the rotating shaft of the motor 9 meshes with the helical gear of the two-stage gear 10. The small gear of the second gear 10 meshes with the large gear of the second gear 11. The small gear of the two-stage gear 11 is a two-stage gear 12
With the large gear. The small gear of the second gear 12 meshes with the gear 13.

The gear 13 meshes with the gear 14a.
The gear 14a is fixed to a shaft 14 rotatably supported on both sides of the main body chassis 1. Gears 1 at both ends of shaft 14
4b and gear 14c are fixed. The gear 14b meshes with the third gear 6. As explained earlier,
The third gear 6 also meshes with the elliptical gear 4a. That is, the thickness of the third gear 6 depends on the gear 14b and the elliptical gear 4a.
Is wider than the thickness.

The gear 14c fixed to the shaft 14 is a motor 9
The drive mechanism of the operation panel arranged on the main body chassis 1 on the opposite side from the above is driven. That is, as shown in FIG.
The members such as the lever 2 are arranged symmetrically on both sides of the main body chassis 1, and the gear 14 c meshes with a third gear disposed on the main body chassis 1 on the opposite side to the motor 9.

Next, the operation of the driving mechanism of the operation panel configured as described above will be described. FIGS. 2, 3 and 4 show a normal use state of the on-vehicle audio device. In this state, the operation surface of the operation panel 5 is located in front of the audio device. The key operation causes the operation panel 5 to move from the state shown in FIG. 4 to the state shown in FIG. 6 via the state shown in FIG.

The operation panel 5 can be stopped at the position shown in FIG. 5 by a key operation. 4 and 5
And each state shown in FIG.
Detected at 5, 16 and 17. In the state shown in FIG. 5, the operation panel 5 is substantially horizontal. At this time, the shaft 5a is located below, and the front of the on-vehicle audio device is widely opened and the cassette tape disposed behind the operation panel 5 It is possible to insert a recording medium from a recording medium insertion port such as the above. In the state shown in FIG. 6, the back surface of the operation panel 5 is the front surface, and the audio equipment is hidden, so that the theft is prevented even when the user leaves the car.

The operation of moving the operation panel 5 will be described. When the third gear 6 is driven counterclockwise in the state shown in FIG. 3, the cam plate 4 rotates clockwise. Then, the second lever 3 rotates counterclockwise due to the engagement of the first gear 4c, the second gear 7, and the internal gear 3a. The first lever 2 is guided by the shaft 1b and the cam groove 4b, is once rotated in the counterclockwise direction, and then is rotated in the clockwise direction.

While the operation panel 5 moves from the position shown in FIG. 4 to the position shown in FIG. 5, both the first lever 2 and the second lever 3 are rotated counterclockwise, and the shaft 5a is moved to the lower limit position. Be moved. While the operation panel 5 moves from the position shown in FIG. 5 to the position shown in FIG. 6, the first lever 2 is rotated clockwise, the second lever 3 is rotated counterclockwise, and the shaft 5a is substantially at the lower limit. In the position.

During the transition from the state shown in FIG. 4 to the state shown in FIG. 6, the operation panel 5 is rotated clockwise by 180 ° by the engagement of the fourth gear 5b, the fifth gear 8 and the sixth gear 2a. You. By reversing the motor 9, the operation panel 5 is driven from the position shown in FIG. 6 to the position shown in FIG. 4 via the position shown in FIG.

The moving path of the operation panel 5 is the axis 2b.
Of the first lever 2 from the center of rotation, the distance between the center of rotation of the second lever 3 and the hole 3d, the shapes of the elliptical gear 4a and the cam groove 4b, the first gear 4c, and the second gear The optimum state can be achieved by setting the pitch circle diameter of the 7, the internal gear 3a, the sixth gear 2a, the fifth gear 8 and the fourth gear 5b.

In the above embodiment, the back surface of the operation panel is used as a surface for hiding the audio equipment in order to prevent theft, but the back surface of the operation panel may be used as an operation surface in a mode different from that of the front operation surface. it can.

[0030]

According to the in-vehicle electronic device of the present invention, when the user leaves the vehicle, the electronic device can be hidden and theft can be prevented by using the back side of the operation panel as the front surface. Since only the light operation panel is driven, the driving mechanism is simplified. Further, since a blind plate as a separate component is not required, the cost is reduced as a whole.

Further, the front of the electronic device main body is greatly opened at the stop position where the operation panel is substantially horizontal, so that a thick recording medium such as a cassette tape can be easily inserted. Further, since the recording medium is directly inserted into the electronic device main body without passing through the operation panel, the moving path of the recording medium is shortened, and the mounting mechanism of the recording medium can be simplified.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of an on-vehicle audio device according to an embodiment of the present invention.

FIG. 2 is a side view showing a main part of the on-vehicle acoustic device.

FIG. 3 is a side view showing a main part of the on-vehicle acoustic device.

FIG. 4 is a side view showing a main part of the on-vehicle acoustic device.

FIG. 5 is a side view showing the operation of the on-vehicle acoustic device.

FIG. 6 is a side view showing the operation of the on-vehicle acoustic device.

FIG. 7 is a plan view showing a main part of the on-vehicle acoustic device.

FIG. 8 is a perspective view showing an example of a conventional anti-theft device for on-vehicle audio equipment.

FIG. 9 is a perspective view showing another state of the antitheft device for the in-vehicle audio device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Body chassis, 1a, 1b Shaft 2 1st lever, 2a 6th gear, 2b, 2c, 2
d axis, 2e guide groove 3 second lever, 3a internal gear, 3b axis, 3c
Guide groove, 3d hole 4 cam plate, 4a oval gear, 4b cam groove, 4
c 1st gear, 4d guide groove 5 operation panel, 5a shaft, 5b 4th gear 6 3rd gear, 7 second gear 8 5th gear 9 motor, 9a worm 10, 11, 12 two-stage gear 13 gear 14 shaft, 14a, 14b, 14c gear 15, 16, 17 micro switch 18 torsion coil spring 104 chassis 105 cover 106 escutsion 107 frame 108 operation panel

Claims (5)

(57) [Claims] An operation panel is disposed in front of the vehicle, and a driving mechanism for driving the operation panel is provided. A first state in which a normally used operation surface of the operation panel is a front surface, and a back surface of the operation surface of the operation panel. In a vehicle-mounted electronic device driven to move a rotation axis while rotating the operation panel by the drive mechanism, so that the operation panel shifts between a second state in which the operation panel is a front surface, the operation panel is in a substantially horizontal state. An in-vehicle electronic device configured to position the rotation axis during the movement at the end of the movement range of the rotation axis. 2. A second lever and a cam plate are rotatably supported coaxially on a first lever rotatably provided on an electronic apparatus main body, and a non-circular gear and a non-circular gear are supported on the cam plate. A cam groove along the outer periphery and a first gear centered on the rotation axis of the cam plate are provided, the first lever rotatably supports the second gear, and the second lever is rotated by a rotation shaft. And a third gear supported by the electronic device main body meshes with the non-circular gear and a third gear
Gear shaft is engaged with the cam groove, the first gear,
The second gear and the internal gear are sequentially meshed with each other, and the second lever is rotatably supported on a side end of the operation panel via a shaft. The fifth gear is rotatably supported on a shaft that is fixedly mounted on the operation panel, and is provided upright in the middle of the second lever, and the first lever is provided around the center of rotation of the second lever. The vehicle-mounted electronic device according to claim 1, wherein a sixth gear is provided, and the sixth gear, the fifth gear, and the fourth gear are sequentially engaged with each other, and the third gear is rotationally driven. . 3. The in-vehicle electronic device according to claim 1, wherein the back surface of the operation panel is used as a blind plate so that the back surface of the operation panel is in front when not in use. 4. The in-vehicle electronic device according to claim 1, wherein a position in the middle of movement at which the operation panel becomes substantially horizontal is detected, and the operation panel is stopped at that position. . 5. The on-vehicle vehicle according to claim 1, wherein the recording medium insertion port is not provided on the operation panel, but is provided on the electronic device main body disposed behind the operation panel. For electronic equipment.