JP2001103396A - On-vehicle electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize detection of a caught article with a simple configuration without using a clutch in the case that the article is caught between a monitor and other members while the monitor is tilted and moved in an on-vehicle electronic device where a lower part of the monitor in an escutcheon is protruded, tilted and moved. SOLUTION: In the case that any article is caught between the monitor and a slide base 2 or between the monitor and the escutcheon while the monitor is tilted and moved, since only a slide plate 3 connected to the slide base 2 by a tensile coil spring 21 is stopped and the movement of a detection member 4 and a linear position 12 in interlocking with the slide plate 3 is stopped, a microcomputer of a control section detects it to stop or reverse a motor 5.

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 in which a monitor means such as an in-vehicle audio-video device is tiltably held.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a vehicle-mounted electronic device in which a conventional monitor means is held so as to be tiltable. An escutcheon 14 is fitted around a front opening of a housing 15 and an inside thereof is inserted. Since the monitor 13 for displaying an image is rotatably provided on the brackets 2a and 2b integrally formed on both sides of the front end of the slide base 2, the upper portion is provided on the escutcheon 14 so as to be slidable in the vertical direction. The monitor 13 tilted about the brackets 2a and 2b as a fulcrum.

FIG. 4 shows details of the tilting mechanism.
In FIG. 4, the monitor 13 is turned around brackets 2a, 2b provided on both sides of the front end of a slide base 2 held slidably in the front and rear AB direction on a chassis 1 fixed inside a housing 15. It is movably supported. A drive unit having a motor 5 fixed to the chassis 1 is disposed inside the frame-shaped slide base 2. A worm 6 is fixed to the rotating shaft of the motor 5, and a worm wheel 7 with a clutch meshes with the worm 6, and a spur gear 8 (not shown) fixed coaxially with the worm wheel 7 meshes with the spur gear 8. The spur gear 9 meshes, and a pinion (not shown) integral with the spur gear 9 meshes with the rack 2c of the slide base 2. The slide plate 3 is fixed on the slide base 2 by fixing screws 16 and 17. On the chassis 1, a bent plate-shaped detection member 4 is provided slidably in the right and left CD directions. The lower part of the pin 3a formed at the rear end of the slide plate 3 is engaged with the oblique long hole 4a of the detection member 4, and when the slide plate 3 moves in the front-back AB direction,
The detection member 4 moves in the right and left CD directions.

Next, the operation of the tilting mechanism configured as described above will be described. When a tilt button 18 (see FIG. 3) provided on the front surface of the monitor 13 is pressed, the motor 5 rotates, and the worm 6 is turned to the worm wheel 7, the spur gears (not shown) to the spur gears 8 and 9 and the pinions (not shown). To move the rack 2c in the front A direction. When the rack 2c moves in the direction A, the slide base 2 and the brackets 2a and 2b integrated with the rack 2c also move in the direction A, so that the lower part of the monitor 13 rotatably provided on the brackets 2a and 2b moves in the direction A. And the monitor 13 is tilted.

On the other hand, when the slide base 2 moves in the direction A, the slide plate 3 fixed to the slide base 2 also moves in the direction A, and the pins 3a provided on the slide plate 3 are inserted into the elongated holes 4a of the detecting member 4. Because it is engaged,
The detection member 4 moves in the right C direction. As a result, the U-shaped groove 4c of the detection member 4 moves the operator 12a of the rear position sensor 12 in the rightward C direction, and the resistance value of the rear position sensor 12 changes. The tilt angle of the monitor 13 is sequentially detected. The tilt button 18 is a push-push type in which the operation state is held by pressing the button, and the operation state is released by pressing the button again.
When the tilt button 18 is pressed again, the rotation of the motor 5 is stopped and the tilting operation of the monitor 13 is also stopped, so that the monitor 13 can be adjusted to an angle desired by the user.

When the slide base 2 moves to the maximum forward position and the monitor 13 tilts at the maximum angle, the detection member 4 also moves to the maximum right position, and the pin 4b provided on the detection member 4 detects the close at that position. The contact piece 11a of the switch 11 is pressed, and the signal stops the motor 5. Next, when the tilt button 18 is pressed, the motor 5 rotates in the reverse direction, and the slide base 2 and the slide plate 3 move in the rear B direction, so that the tilt angle of the monitor 13 gradually decreases, and the detection member 4 moves. By moving in the left D direction, the tilt angle of the monitor 13 is sequentially detected. Then, when the slide base 2 moves to the maximum rear position and the monitor 13 becomes substantially vertical, the bent portion 3b provided at the rear end of the slide plate 3 pushes the contact piece 10a of the open switch 10, and the signal is output. As a result, the motor 5 stops.

As described above, even with the conventional tilting mechanism, the monitor 13 can be adjusted to an arbitrary angle suitable for the user, and the monitor 13 is placed in the housing 15 so as not to be obstructed when not used. Can be stored.

[0008]

However, in the above-described conventional tilting mechanism, when the monitor 13 is shifted from the upright state to the maximum tilting angle, something is caught between the monitor 13 and the slide base 2. Conversely, monitor 1
When the object 3 is shifted from the maximum tilt angle to the upright state, if any object is caught between the monitor 13 and the escutcheon 14, the clutch of the worm wheel 7 with clutch operates and the motor 5 idles. Although the failure can be prevented at the maximum output or less, the clutch mechanism transmits the power by the slip mechanism, so the slip load varies, the power transmission is not performed stably, and the obstacle avoidance is avoided. There was a problem that it was not perfect.

The present invention has been made to solve the above-mentioned conventional problem, and has a simple structure to prevent the occurrence of an obstacle when something is caught between a monitor and a slide base or an escutcheon while tilting the monitor. It is intended to provide an in-vehicle electronic device that can be reliably avoided.

[0010]

In order to solve the above-mentioned problems, a vehicle-mounted electronic device according to the present invention comprises: a slide base provided on a chassis fixed to a lower portion in a housing so as to be movable in a front-rear direction; Monitor means pivotally supported on both sides of the front of the base, driving means for driving the slide base in the front-rear direction, and a slide plate slidably provided on the slide base in the front-rear direction.
Spring means provided between the slide base and the slide plate to normally press and urge the slide plate in one of the front and rear directions, a detection member interlocked with the movement of the slide plate, and the detection member And a control means for detecting the signal from the sensor means and controlling the operation of the monitor means. With this configuration, if any object is caught between the monitor means and another member during the tilting operation of the monitor means, the spring member expands or contracts and the slide plate stops, and the control means detects this. This eliminates the need for a clutch for avoiding a failure as in the related art, and can reliably avoid the occurrence of a failure with a simple configuration.

Further, in the vehicle-mounted electronic device according to the present invention, when the control means detects that the movement of the detecting member has stopped based on a signal from the sensor means, the control means stops the driving means, or If any object is caught between the monitor means and another member, the movement of the monitor means is stopped or reversed so that the caught object can be immediately removed. You can do it.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. The overall configuration of the on-vehicle electronic device according to the present embodiment is the same as that of the conventional car audio with a monitor incorporating the conventional monitor tilting mechanism shown in FIG. 3, and the monitor tilting mechanism is also the same as the conventional example shown in FIG. Is almost the same except for a part of the configuration, and therefore, the same members will be described with the same reference numerals. This embodiment is different from the conventional example shown in FIG. 4 in that the slide plate 3 is attached to the slide base 2 by stepped screws 19 and 20 fixed to the slide base 2 through the elongated holes 3c and 3d. It is provided so as to be slidable, and a tension coil spring 21 is stretched between the slide plate 3 and the slide base 2 so that the slide plate 3
Is normally urged in the forward direction A. The spring constant of the extension coil spring 21 is such that, when the slide plate 3 and the slide base 2 move integrally under normal conditions, and the monitor 13 tilts, when an object such as a human finger is caught, the slide base The slide plate 3 is set to such a value that only 2 moves and the slide plate 3 stops. Other configurations are the same as the conventional example shown in FIG.
The overlapping description will be omitted, and only the tilting operation will be described below.

In FIG. 1, when a tilt button 18 (see FIG. 3) provided on the front of the monitor 13 is pressed, the microcomputer 22 shown in FIG. 5 and then tilt button 1
The operation state is continued until 8 is pressed. When the motor 5 rotates, the rotating force is transmitted from the worm 6 to the worm wheel 7, from the spur gears (not shown) to the spur gears 8, 9 and the pinions (not shown), and moves the rack 2c meshing with the pinions in the forward direction A. Rack 2c
Moves in the direction A, the slide base 2 and the brackets 2a, 2b integral with the rack 2c also move in the direction A, so that the lower part of the monitor 13 rotatably provided on the brackets 2a, 2b is pushed out in the direction A. Monitor 13
Will tilt. Tilt button 18 at appropriate position
When the user presses, the microcomputer 22 stops the rotation of the motor 5, so that the user can adjust the monitor 13 to a desired angle.

On the other hand, when the slide base 2 moves in the direction A, the slide plate 3 integrated with the slide base 2 by the tension coil spring 21 also moves in the direction A, and the pin 3a provided on the slide plate 3 detects the pin 3a. Since the detection member 4 is engaged with the long hole 4a, the detection member 4 moves in the right C direction. As a result, the U-shaped groove 4c of the detection member 4 moves the operator 12a of the rear position sensor 12 in the rightward C direction, and the resistance value of the rear position sensor 12 changes. Are sequentially detected.

When the slide base 2 moves to the maximum forward position and the monitor 13 tilts at the maximum angle, the detection member 4 also moves to the maximum right position, and the pin 4b provided on the detection member 4 detects the close at that position. The contact piece 11a of the switch 11 is pressed, and the microcomputer 22 stops the motor 5 according to the signal. When the tilt button 18 is pressed in this state, the microcomputer 22 rotates the motor 5 in the reverse direction, and the slide base 2 and the slide plate 3 move in the rearward B direction, so that the tilt angle of the monitor 13 gradually decreases, The detection member 4 moves in the left D direction, and the tilt angle of the monitor 13 is sequentially detected. When the slide base 2 moves to the maximum rear position and the monitor 13 is in a substantially vertical state, the bent portion 3 b provided at the rear end of the slide plate 3
Since 0a is pressed, the microcomputer 22 stops the motor 5 according to the signal.

While the monitor 13 is tilting, any object,
For example, when a human finger is caught between the monitor 13 and the slide base 2 or the escutcheon 14, only the slide base 2 moves due to the rotation of the motor 5,
Since the slide base 2 and the slide plate 3 are only connected by the extension coil spring 21, the slide plate 3 stops. As a result, the movement of the detection member 4 is also stopped, and the resistance value of the linear position sensor 12 does not change.
Monitor 13 and slide base 2 or escutcheon 1
Then, it is determined that an object is caught between the motor 5 and the motor 5, and the motor 5 is stopped or reversed. Thereby, for example, even when a finger is pinched, the finger can be immediately pulled out and functions as a safety device.

As described above, according to the present embodiment, when any object is caught between the monitor 13 and the slide base 2 or the escutcheon 14 while the monitor 13 is tilting, the slide base 2 Tension coil spring 21
Only the slide plate 3 connected by the stop is stopped, and the movement of the detection member 4 and the linear position 12 interlocked with the stop is also stopped. The microcomputer 22 detects this and stops or reverses the motor 5, so that the Objects can be immediately removed, and the occurrence of obstacles can be prevented.

In the above embodiment, the slide base 2 and the slide plate 3 are connected by the tension coil spring 21, but may be connected by the compression coil spring. Although the worm wheel 7 is not provided with a clutch, when the clutch is inserted into a worm wheel with a clutch or another part, the safety mechanism can be configured as a double.

[0019]

As described above, a vehicle-mounted electronic device according to the present invention comprises a slide base movably provided in a front-rear direction on a chassis fixed to a lower portion of a housing, and a front side of the slide base. Monitor means pivotally supported on the slide base; drive means for driving the slide base in the front-rear direction; a slide plate slidably provided on the slide base in the front-rear direction; Spring means provided between the slide plate and normally presses and biases in one of the front and rear directions,
A detecting member for interlocking with the movement of the slide plate, a sensor unit for detecting the movement of the detecting member, and a control unit for detecting a signal from the sensor unit and controlling an operation of the monitor unit. Have. With this configuration, if any object is caught between the monitor means and another member during the tilting operation of the monitor means, the spring member expands or contracts and the slide plate stops, and the control means detects this. This eliminates the need for a clutch for avoiding a failure as in the related art, and has an effect that the occurrence of a failure can be reliably avoided with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a tilting mechanism of a vehicle-mounted electronic device according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a schematic configuration of a control unit according to the embodiment of the present invention.

FIG. 3 is an external perspective view of a vehicle-mounted electronic device according to the present invention and a conventional example when the monitor is tilted.

FIG. 4 is a perspective view showing a tilting mechanism of a vehicle-mounted electronic device in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 2 Slide base 2a, 2b Bracket 2c Rack 3 Slide plate 3a Pin 3b Bending part 3c, 3d Slot 4 Detection member 4a Slot 4b Pin 4c U-shaped groove 5 Motor 6 Worm 7 Worm wheel 8 Spur gear 9 Spur gear 10 Close detection switch 10a Contact piece 11 Open detection switch 11a Contact piece 12 Linear position sensor 12a Actuator 13 Monitor 14 Escussion 15 Housing 16, 17 Fixing screw 18 Tilt button 19, 20 Stepped screw 21 Tension coil spring 22 Microcomputer 23 Power supply

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Goto 3-1, Tsunashimahigashi 4-chome, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Matsushita Communication Industrial Co., Ltd. No.3-1, Matsushita Communication Industrial Co., Ltd. F-term (reference) 3D020 BA04 BB01 BC03 BD02 BD08 BE03 5G435 AA07 AA19 EE13 EE17 EE49 LL17

Claims (2)

[Claims] 1. A slide base provided on a chassis fixed to a lower part in a housing so as to be movable in the front-rear direction, monitor means pivotally supported on both sides of a front part of the slide base, and the slide base. Driving means for driving in the front-rear direction, a slide plate slidably provided on the slide base in the front-rear direction, and a slide plate provided between the slide base and the slide plate for normally moving the slide plate back and forth. A spring means for pressing and biasing in any one of the directions, a detection member interlocking with the movement of the slide plate, a sensor means for detecting the movement of the detection member, and the monitor for detecting a signal from the sensor means. Control means for controlling the operation of the means. 2. The method according to claim 1, wherein the control unit stops or reverses the driving unit when detecting that the movement of the detection member has stopped based on a signal from the sensor unit. 2. The in-vehicle electronic device according to 1.