JPH07244975A - Vehicle mounted acoustic device having moveable operation surface - Google Patents

Abstract

PURPOSE:To prevent the occurrence of a damage caused by the unnecessity of a moveable operation surface by changing the time duration between the time of discriminating the presence or the absence of a recording medium and the closure of the surface based on the ON/OFF detection result of a power supply. CONSTITUTION:When a means 3 detects the opening condition of the moveable operation surface, and a means 4 detects a condition in which no recording medium exists in the port of the surface, a closure drive means 5 of the surface is driven to close the surface. At that time, a power supply condition detection means 2 detects the ON/OFF condition of a power supply. If the power supply ON condition is detected, a means 6, which changes the closure time of the surface based on the power supply condition, sets a constant time to secure a necessary time to exchange cassette tapes. Thus, the surface is closed after a necessary and minimum time is passed and cumbersome operations are eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted acoustic device having a movable operation surface such as a car stereo.

[0002]

2. Description of the Related Art In recent car audio systems such as car stereos, a movable operation surface as a front movable panel is mounted, and an opening / closing mechanism for controlling this opening / closing operation by a motor. Section is provided. When using a car stereo, move this movable operation surface by the opening and closing mechanism to make it open, insert a cassette tape,
Various buttons can be operated. On the other hand, the movable operation surface is closed by the opening / closing mechanism except when the car stereo is used. In the open state of the movable operation surface when using a car stereo, in consideration of the possibility that the occupant may contact the movable operation surface due to the reaction in the event of a collision, etc. The surface is constructed of a material that is easily damaged by contact.

In addition, in some countries, there is a standard that sharp protrusions should not be provided in the passenger compartment. Therefore, in order to avoid exposing protrusions such as operation buttons, the open state of the movable operation surface is constant. It may be configured to forcibly close the movable operating surface over time. However, if the movable operation surface is configured to be forcibly closed after a certain period of time elapses in this way, there is an obstacle such as a cassette tape in the insertion opening that becomes the movement trajectory of the movable operation surface at the time of closing. If it does, this obstacle will be caught. This not only makes reliable closure difficult, but also
The occupant must check the presence of obstacles and then close the movable operation surface as much as possible because the movable operation surface or the opening mechanism portion thereof may break down. As a result, the movable operation surface is protected and the occupant is safe.

[0004]

By the way, the following problems exist in the conventional vehicle-mounted acoustic device having a movable operation surface such as a car stereo. (1) Since the movable operation surface including the opening / closing mechanism is made of a material that is easily damaged from a safety point of view, the movable operation surface is accidentally moved with the movable operation surface open even during normal use other than during an accident. If it comes into contact with a surface, it is easily damaged. Therefore, damage due to unnecessary causes increases. (2) The occupant is often required to close the movable operation surface, which complicates the operation. As a result, safe driving is also hindered.

The present invention has been made to solve the above problems, and has a movable operation surface which prevents the movable operation surface from being damaged due to unnecessary causes and eliminates a complicated operation for the occupant. It is an object to provide an on-vehicle audio device.

[0006]

In order to achieve the above object, the present invention according to claim 1 provides a first means for detecting ON / OFF of a power source and a second means for detecting an open state of a movable operation surface.
Means, third means for detecting whether or not there is a recording medium in the insertion opening of the movable operation surface, and when it is determined that there is no recording medium in the insertion opening in the opened state of the movable operation surface, Based on the detection result of the first means, a fourth means for driving the movable operation surface to be closed and a time from when it is determined that there is no recording medium until the closing of the movable operation surface is executed. And a fifth means for controlling so as to make them different from each other.

[0007]

According to the structure of the present invention according to claim 1, in the open state of the movable operation surface, when it is determined that there is no recording medium in the insertion opening of the movable operation surface, the movable operation surface is closed. Drive to. At this time, the time from when it is determined that there is no recording medium to when the movable operation surface is closed is controlled so as to be different based on the detection result of power ON / OFF. As a result, the movable operation surface is closed after the required minimum fixed time has elapsed, so that it is possible to prevent the movable operation surface from being damaged by an unnecessary cause, and to eliminate a complicated operation forcing the occupant.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an in-vehicle acoustic device having a movable operation surface of the present invention. Reference numeral 1 denotes a power source, which is composed of a battery and is used as a main power source (power power source), an ACC power source, or the like for operating various in-vehicle audio devices including a car stereo. Reference numeral 2 is a power supply state detecting means (first means) for detecting ON / OFF of the power supply 1,
Means for detecting the open state of the movable operation surface (second means),
Reference numeral 4 is a means (third means) for detecting whether or not there is a recording medium such as a cassette tape in the insertion opening of the movable operation surface.
Further, 5 is a means (fourth means) for driving the movable operation surface to be closed when it is determined that there is no recording medium in the insertion opening of the movable operation surface in the open state of the movable operation surface, as described later. Reference numeral 6 makes the time from when it is determined that there is no recording medium in the insertion opening of the movable operation surface until the closing of the movable operation surface is performed based on the detection result of the power supply state detection means 2 as described later. It is a means (fifth means) for controlling as described above.

The control means 6 is composed of a microcomputer, and each means 2, 3, 4,
The detection signal from 5 is input to perform the necessary control operation. 7
Is a movable operation surface opening time setting timer capable of arbitrarily setting the opening time of the movable operation surface built in the control means 6. As will be described later, the setting timer 7 is used when it is determined that there is no recording medium in the insertion opening of the movable operation surface when the power state detection unit 2 detects the ON state in the open state of the movable operation surface. In addition, a certain period of time is provided from the determined time to the closing of the movable operation surface. That is, this setting timer 7 is provided to secure the time required for this replacement operation assuming that the cassette tapes will be replaced when the power is on and the movable operation surface is open. ing.

In the control means 6, a logic section for detecting and controlling the power supply state, a logic section for detecting and controlling the open state of the movable operation surface, a logic section for detecting and controlling the presence or absence of the recording medium at the insertion slot, A logic unit for activating the means 5 for driving the opening / closing of the movable operation surface, a logic unit for counting (controlling) and controlling the time set by the setting timer 7, and the like are provided. Further, in the control means 6,
There is built-in means for measuring the opening time of the movable operation surface based on the detection signal from the detecting means 3, and when the time set by the setting timer 7 is counted as counting end by this measuring means, The controlling means 6 controls the driving means 5 to close the movable operating surface.

Next, the operation of this embodiment will be described with reference to the flow chart of FIG. In addition, as an example, an example in which a cassette tape is inserted in a car stereo will be described.
The opening time of the movable operation surface is arbitrarily set in advance by the movable operation surface opening time setting timer 7. First, in step A, it is determined whether or not a power source, for example, a power source, is on. If it is on, the flow proceeds to step I, and if it is off, the flow proceeds to step B. In step B, it is determined whether or not the cassette tape is inserted in the car stereo, and if it is not inserted, the flow proceeds to the end of the latter stage of step H, and the operation ends. This is because if the cassette tape does not exist in the car stereo, it is not in a state where it can be played back even if the movable operation surface is opened and the cassette tape is loaded thereafter, so the operation itself of closing the movable operation surface is ignored. Because it is done. When the cassette tape is inserted, the flow proceeds to step C, where the movable operation surface is opened. Then, after ejecting the cassette tape in step D, the flow proceeds to step E where it is determined whether or not the cassette tape is present at the insertion opening of the movable operation surface. If not, the flow proceeds to step H, where the movable operation surface is closed. If yes, repeat until no.

On the other hand, if the ACC power is on, the flow proceeds to step I, where it is determined whether or not the cassette tape is inserted in the car stereo. If not, the flow proceeds to step J. Proceed and open the movable operating surface here. If it is inserted, the flow proceeds to step M, where the movable operation surface is opened, and then the cassette tape is ejected at step N. Next, in step K, it is determined whether or not there is a cassette tape in the insertion opening of the movable operation surface, and if there is, the flow proceeds to step F, where it is again determined whether or not the catet tape is inserted in the car stereo. To determine. If not inserted, the flow returns to step K, and if inserted, the flow goes to step G, where after the cassette tape is loaded, the flow goes to step H.

When it is determined in step K that there is no cassette tape, the flow proceeds to step L, where it is determined whether or not the count (the preset time set by the setting timer 7) has ended. This is judged by being timed by the timing means of the controlling means 6. If it has not ended, the flow returns to step K, and if it has ended, the flow proceeds to step H, where the movable operation surface is closed. As described above, in step L, when the power is on and the movable operation surface is open,
It is provided so that the movable operation surface is not closed for a certain period of time required for this replacement operation, assuming that the cassette tapes are replaced.

When the power source is turned on,
If the movable operation surface is opened and the power supply is turned off after that (including turning off the power supply by turning off the ACC power supply on the vehicle side), if there is no cassette tape in the insertion opening of the movable operation surface, When the power-off is detected, and when the cassette tape is present, the movable operation surface is closed when the cassette tape is removed from the insertion port.

According to the present embodiment as described above, when the power source is on and the movable operation surface is open, FIG.
As described in the step L of 1., the movable operation surface is closed after the lapse of a minimum required fixed time which is the time required for the exchange operation, which is provided on the assumption that the cassette tapes are exchanged. Therefore, the following effects can be obtained. (1) Even if the movable operation surface including the opening / closing mechanism is made of a material that is easily damaged from a safety point of view, it is less likely to come into contact with the movable operation surface during normal use except for an accident. It is possible to prevent damage due to unnecessary causes. (2) Since the occupant is released from the operation of frequently closing the movable operation surface, there is no need to perform a complicated operation.
Along with this, it becomes possible to improve safe driving. On the other hand, in the state where the power is off and the movable operation surface is released, the movable operation surface is immediately closed without the above-described fixed time.

In the embodiment of the present text, a car stereo is taken as an example, but the present invention is not limited to this, and may be applied to other vehicle-mounted acoustic devices such as a CD player using a CD (compact disc) as a recording medium. It can be applied similarly.

[0017]

According to the first aspect of the present invention, when the movable operation surface is opened, the movable operation surface is driven to be closed when it is determined that there is no recording medium in the insertion opening of the movable operation surface. In this case, the time from when it is determined that there is no recording medium to when the movable operation surface is closed is configured to be different based on the detection result of power ON / OFF, so the minimum required constant Since the movable operation surface is closed after a lapse of time, it is possible to prevent the movable operation surface from being damaged due to unnecessary causes, and to eliminate complicated operations forcing the occupant.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an in-vehicle acoustic device having a movable operation surface of the present invention.

FIG. 2 is a flowchart illustrating the operation of the embodiment of the present invention.

[Explanation of symbols]

1 Power Supply 2 Power Supply State Detection Means (First Means) 3 Means for Detecting Open State of Movable Operation Surface (Second Means) 4 Means for Detecting Whether or Not a Recording Medium is in the Insertion Port of Movable Operation Surface Means) 5 Means for driving so as to close the movable operation surface (4th means) 6 Means for making the closing time of the movable operation surface different based on the power source state (5th means) 7 Movable operation surface opening time setting timer

Claims (1)

[Claims] 1. A first means for detecting ON / OFF of a power source, a second means for detecting an open state of a movable operation surface, and a detection of whether or not a recording medium is present in the insertion opening of the movable operation surface. Third means, fourth means for driving the movable operation surface to be closed when it is determined that there is no recording medium in the insertion port when the movable operation surface is open, and the recording medium is not present. A movable operation surface, characterized in that the movable operation surface has a fifth means for controlling the time from the determination to the closing of the movable operation surface based on the detection result of the first means. An in-vehicle audio device having.