JP3683288B2 - On-vehicle acoustic device having a movable front panel - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an in-vehicle acoustic device having a front movable panel such as a car stereo.
[0002]
[Prior art]
For example, recent in-vehicle acoustic devices such as car stereos are equipped with a front movable panel, and when using a car stereo, the front movable panel is moved to an open state to insert a cassette tape or the like, Various buttons can be operated. On the other hand, the front movable panel is closed except when the car stereo is operated. Considering the possibility that the occupant may come into contact with the opening / closing mechanism that controls the opening / closing operation of the front movable panel by the motor when a collision accident occurs in the open state of the front movable panel during car stereo operation. For safety reasons, the opening / closing mechanism is made of a material that is easily damaged by contact.
[0003]
In some countries, there is a standard that no sharp projections should be provided in the passenger compartment, so the front movable panel has been open for a certain period of time to avoid exposing projections such as operation buttons. Then, the front movable panel may be configured to be forcibly closed. As a result, the opening / closing mechanism of the front movable panel is protected and passenger safety is ensured.
[0004]
[Problems to be solved by the invention]
By the way, the following problems exist in the in-vehicle acoustic device having a front movable panel such as a conventional car stereo.
(1) Since the opening / closing mechanism part of the front movable panel is made of a material that is easily damaged from a safety standpoint, the opening / closing mechanism part can be mistakenly in the open / closed state of the front movable panel even during normal use except during an accident Even in the case of contact, it is easy to break.
(2) If the front movable panel is configured to be forcibly closed after a lapse of a certain period of time, if there is any obstacle on the moving track of the front movable panel at the time of closing, this obstacle , It is difficult to reliably close the front movable panel, or the front movable panel or the opening / closing mechanism may be damaged.
[0005]
The present invention has been made in response to the above problems, and provides an in-vehicle acoustic device having a front movable panel that prevents damage to the opening / closing mechanism and enables reliable closure of the front movable panel. It is intended.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention according to claim 1 is directed to power supply state detection means for detecting an on / off state of a power supply, a first switch for detecting an open state of the front movable panel, and the front movable panel. A second switch for detecting whether or not there is an obstacle on the moving trajectory, means for measuring the opening time of the front movable panel based on the first switch, and turning on the power by the power supply state detecting means. Means for driving a warning until the obstacle is no longer detected based on the second switch when the time measured by the means for timing exceeds a predetermined time when the state is detected; When the power supply state detecting means detects the power off state, the operation time of the means for driving the warning is limited within a certain time. That.
[0008]
[Action]
According to the configuration of the present invention relating to claim 1, based on the first switch for detecting the open state of the front movable panel, the time for opening the front movable panel is measured by the time measuring means, and the power-on state is detected. When the measured time exceeds a predetermined time, a warning is given until the obstacle is no longer detected based on the second switch for detecting the presence or absence of the obstacle on the track of the front movable panel. The warning is driven by the means for driving. At this time, when the power-off state is detected by the power-supply state detecting means, the operation time of the means for driving the warning is limited to a predetermined time. As a result, it is possible to shorten the opening time of the front movable panel while effectively using the power supply, and thus it is possible to prevent the opening / closing mechanism portion from being damaged and to reliably close the front movable panel.
[0010]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a first embodiment of an in-vehicle acoustic apparatus having a front movable panel according to the present invention. SWA is a switch for detecting the closed state of the front movable panel (operating surface lid), and SWB is front movable. A switch for detecting the open state of the panel, SWC is a switch for detecting whether there is an obstacle such as a cassette tape on the moving track of the front movable panel. Reference numeral 1 denotes a power supply. A voltage is supplied from the power supply 1 to the switches SWA, SWB, and SWC via the resistors R1, R2, and R3. Reference numeral 2 denotes a control unit including a microcomputer (microcomputer), which inputs a detection signal from each of the switches SWA, SWB, SWC and performs a necessary control operation. 3 is a warning sound generating means (including a circuit) composed of a buzzer, a speaker, and the like, and 4 is a driving means (including a circuit) of an opening / closing mechanism section for controlling the opening / closing operation of the front movable panel by a motor. Both the driving means 4 of the opening / closing mechanism section are controlled by the control section 2.
[0011]
The control unit 2 includes means for measuring the opening time of the front movable panel based on a detection signal from the switch SWB. The time measured by the time measuring means exceeds a predetermined time set in advance. When this happens, the control unit 2 controls the warning sound generating means 3 to generate a warning based on the detection signal of the switch SWC. Further, the control unit 2 controls the driving means 4 based on detection signals from the switches SWA and SWB to drive the opening / closing mechanism unit to open or close the front movable panel.
[0012]
In such a configuration, when it is detected that a predetermined time exceeds a preset time by means for timing in the control unit 2 based on the detection signal from the switch SWB in the open state of the front movable panel, the control unit 2 controls the driving means 4 of the opening / closing mechanism, and starts the closing operation of the front movable panel by the opening / closing mechanism. At this time, when it is detected that there is an obstacle on the moving track of the front movable panel based on the detection signal from the switch SWC, the control unit 2 controls the warning sound generating means 3 to generate a warning, and Stop moving the front movable panel. This warning continues until the obstacle is removed. When the obstacle is removed, the front movable panel is completely closed by the driving means 4. If it is detected that there is no obstacle based on the switch SWC, the front movable panel is completely closed without stopping.
[0013]
According to the present embodiment, the front movable panel is forcibly closed when a predetermined time set in advance in an open state is exceeded, so that the opening time of the front movable panel can be shortened. As a result, the following effects can be obtained.
(1) Even if the opening / closing mechanism of the front movable panel is made of a material that is easily damaged from a safety standpoint, the opening / closing mechanism is damaged in normal use by reducing the opening time of the front movable panel. It is possible to avoid being easily done.
(2) Even if the front movable panel is configured to be forcibly closed after a lapse of a certain time, if there is an obstacle on the moving path of the front movable panel at the time of closing, this obstacle Is detected, a warning is generated, and the front movable panel is closed after the obstacle is removed. Therefore, the front movable panel can be reliably closed, and the front movable panel or the opening / closing mechanism may be damaged. Disappear.
[0014]
FIG. 2 is a block diagram showing a second embodiment of the present invention. The same or corresponding parts as those in FIG. Reference numeral 5 denotes a key matrix having a plurality of operation keys for inputting information. The control unit 2 includes a logic unit 6 that detects and controls the state of the front movable panel, and a driving unit 4 for the opening / closing mechanism unit of the front movable panel. A logic unit 7 to be activated and a logic unit 8 to activate the warning sound generating means 3 are provided.
[0015]
Next, the operation of this embodiment will be described with reference to the flowchart of FIG.
First, in step A, it is determined whether or not the switch SWB is on. If it is not on, the flow proceeds to step B, where after resetting the timer (the means for measuring time built in the control unit 2), the flow is Return to Step A. If it is on, the flow proceeds to step C where the timer is started. Next, it is determined whether or not a predetermined time, for example, 10 seconds has elapsed in Step D. If not, the flow returns to Step A. If it has elapsed, the flow proceeds to step E where the timer is reset. Subsequently, in step F, it is determined whether or not the switch SWC is on. If not, the flow proceeds to step G where the operation surface (front movable panel) is closed (closed). This ends the flow. If it is on, the flow proceeds to step H where a warning is generated. Subsequently, the flow returns to step F, and thereafter the same operation is repeated. In addition, in FIG. 2, when the control part 2 has functions other than a front movable panel, it moves to another logic part as shown with a broken line.
[0016]
As described above, the second embodiment also performs the same operation as that of the first embodiment except that the specific configuration of the control unit 2 is different, so that the same effect can be obtained. The flowchart described with reference to FIG. 3 also applies to the first embodiment having the configuration shown in FIG.
[0017]
FIG. 4 shows a third embodiment of the present invention, which is intended to obtain the same effects as those of the first and second embodiments by particularly utilizing the power source effectively. is there. The same or corresponding parts as those in FIGS. 1 and 2 are indicated by the same numbers. Reference numeral 9 denotes a warning sound generation timer that can arbitrarily set the generation time of a warning sound built in the control unit 2, and when a power-off state of the power source 1 is detected as will be described later, a warning sound generation circuit 3 is provided. This is to limit the operation time of the device within a certain time. As in the configuration of FIG. 2, the control unit 2 includes a logic unit that detects and controls the state of the front movable panel, a logic unit that activates the driving means 4 of the opening / closing mechanism unit of the front movable panel, and a warning sound generation circuit 3. In addition to the logic unit that activates, a logic unit that detects and controls the power supply state, a logic unit that counts (controls) the time set by the setting timer 9, and the like are provided. Reference numeral 10 denotes a power supply state detection means for detecting the on / off state of the power supply 1, which detects the on / off state of the power supply 1 for driving various acoustic devices including a car stereo, and sends the detection signal to the control unit 2. input.
[0018]
Next, the operation of the third embodiment will be described with reference to the flowchart of FIG.
An example in which a cassette tape is inserted into a car stereo will be described. First, in step A, it is determined whether or not a power source, for example, an ACC power source is on. If it is on, the flow proceeds to step J. If it is off, the flow proceeds to step B. When it is off, a fixed time is set by the setting timer 9. After the cassette tape is ejected in step B, the flow proceeds to step C where it is determined whether or not the cassette tape has been removed from the insertion slot. If it has been extracted, the flow proceeds to step I where the operation surface is closed based on the detection signal from the switch SWC. If the cassette tape has not been removed, the cassette tape is on the moving track of the front movable panel. Therefore, in step D, a timer (a means for measuring time incorporated in the control unit 2) is set based on the detection signal from the switch SWC. Subsequently, in step E, the control unit 2 controls the warning sound generation circuit 3 to generate a warning.
[0019]
Next, the process proceeds to Step F, where the generation of the warning sound, that is, the operation time of the warning sound generating circuit 3 is started. Subsequently, in step G, it is determined whether or not the count (a fixed time set by the setting timer 9) has ended. If completed, the flow proceeds to the end of step I, and the operation ends with the cassette tape remaining. If not completed, the flow proceeds to step H, where it is determined again whether or not the cassette tape has been removed from the insertion slot. If it has been extracted, the flow proceeds to step I. If it has not been extracted, the flow returns to step E, and the same operation is repeated thereafter.
[0020]
On the other hand, if the ACC power supply is on, the flow proceeds to step J, where the cassette tape is ejected, and then the flow proceeds to step K, where it is determined whether the cassette tape has been removed from the insertion slot. If it has been extracted, the flow proceeds to step I where the operation surface is closed based on the detection signal from the switch SWC. If the cassette tape has not been removed, the cassette tape is on the moving track of the front movable panel. Therefore, the process proceeds to step L where a timer is set based on the detection signal from the switch SWC. The warning sound generation circuit 3 is controlled to generate a warning. Next, the flow proceeds to Step N where it is determined again whether or not the cassette tape has been removed from the insertion slot. If it has been extracted, the flow proceeds to step I. If it has not been extracted, the flow returns to step M, and the same operation is repeated thereafter.
[0021]
Thus, according to the third embodiment, the power supply state detection means 10 is provided, and when the power supply state detection means 10 detects the power off state, the cassette tape is present on the moving track of the front movable panel. However, when the fixed time set by the setting timer 9 has elapsed, the operation of the warning sound generating circuit 3 is stopped, so that the operating time of the warning sound generating circuit 3 is limited to a predetermined time. can do. Therefore, it is possible to obtain the same effects as those of the first and second embodiments while effectively using the power source 1. As a result, the power consumption of the battery by the in-vehicle acoustic device can be saved, so that the battery can be prevented from rising. In addition, when the power-off state is not detected by the power-supply state detection means 10, as in the first and second embodiments, until the cassette tape that is an obstacle is removed from the moving track of the front movable panel, The warning sound generation circuit 3 continues to operate.
[0022]
The warning sound generated when an obstacle is detected on the moving trajectory of the front movable panel is not limited to the buzzer or speaker shown as an example in the text, but the sound generated by voice synthesis may be used. it can. The present invention is not limited to a car stereo, and can be similarly applied to other in-vehicle audio devices such as a CD player.
[0023]
【The invention's effect】
According to the first aspect of the present invention, the front movable panel is forcibly closed when the open time exceeds a predetermined time in the open state, and any obstruction occurs on the moving track of the front movable panel at the time of closing. When there is an object, a warning is generated while the obstacle is detected when the power-on state is detected, and a warning is generated when the power-off state is detected. Since the time limit is limited to a certain time, the open time of the front movable panel can be shortened while effectively using the power supply, preventing damage to the opening and closing mechanism and allowing the front movable panel to be reliably closed. can do.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of an on-vehicle acoustic device having a front movable panel according to the present invention.
FIG. 2 is a block diagram showing a second embodiment of the present invention.
FIG. 3 is a flowchart illustrating the operation of the second exemplary embodiment of the present invention.
FIG. 4 is a block diagram showing a third embodiment of the present invention.
FIG. 5 is a flowchart for explaining the operation of the third embodiment of the present invention.
[Explanation of symbols]
SWA, SWB, SWC Switch 2 Control unit 3 Warning sound generating means (circuit)
4. Driving means (circuit) for the opening / closing mechanism
5 Key matrix 6 Front movable panel state detection and control determination logic unit 7 Driving means activation logic unit 8 Warning sound generation unit logic unit 9 Warning sound generation setting timer 10 Power supply state detection unit

Claims (1)

A power supply state detection means for detecting the on / off state of the power supply, a first switch for detecting the open state of the front movable panel, and a first switch for detecting whether there is an obstacle on the moving track of the front movable panel. 2, a means for timing the open time of the front movable panel based on the first switch, and a power-on state detected by the power supply state detection means, are timed by the timekeeping means. Means for driving a warning until the obstacle is no longer detected based on the second switch when a predetermined time exceeds a predetermined time, and when the power supply state detecting means detects the power off state, A vehicle-mounted acoustic apparatus having a front movable panel, characterized in that the operation time of the means for driving the warning is limited within a certain time.

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