JPH045568B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

TECHNICAL FIELD The present invention relates to an automobile having a back warning to warn people behind when backing up.

[Conventional technology and its problems]

Automobiles are known in which when the transmission is switched to the reverse position, a change switch detects this and sounds the back horn. However, this device
The horn blared continuously when the change gear was in the back position, which was quite noisy, and especially at night when it was quiet, it caused a huge nuisance to the neighbors. Also, when backing up in a car without a back horn, sounding the alarm made it difficult to pay attention to the people behind you. As a car that solves this drawback, if you press the horn switch with the engine in the bag,
A car has been developed that has an alarm installed at the rear of the car that sounds (Utility Model Publication No. 75583/1983). The vehicle shown in this publication is designed to sound the rear alarm when reversing, and to sound the front alarm when moving forward or stopping. Therefore, if there is a person behind the vehicle, the vehicle can sound an alarm to alert the driver and then back away. However, since the driver of this car sounds the alarm after checking the rear of the car, the alarm does not normally sound unless the driver spots someone behind the car. Unfortunately, not all cars have good rear visibility due to design or usage constraints. For example, the recently popular wedge-type sports cars, trucks, and 1BOX cars have poor rear visibility. Drivers need to look behind them before getting into a car, but this is not always done by all drivers. If the driver backs up without being able to confirm that there are people behind him, it will be an extremely dangerous situation. Therefore, the most dangerous situation cannot be avoided if the driver sounds the alarm after checking the rear of the vehicle. To avoid this, trucks and the like can be equipped with alarms that sound a buzzer when the transmission is put in the back, but as mentioned earlier, these cars have the disadvantage of being extremely noisy at night. This invention was developed with the aim of solving these drawbacks of conventional automobiles, and an important purpose of this invention is to prevent the driver from making indiscriminately loud noises, and to prevent the driver from driving backward. The idea is to provide a car that can be safely backed up, regardless of whether you find someone in the car or not. Another important object of the present invention is to provide an automobile with a backup alarm that has a simple circuit configuration and can be mass-produced at low cost.

[Means to solve conventional problems]

The automobile of the present invention includes an alarm sounding means 1 mounted on the rear of the vehicle body, a horn switch 2 connected to the alarm sounding means 1 to emit an alarm sound, and a change switch 3 controlled by a transmission lever. It is equipped with When the change switch 3 switches the transmission to the reverse position, the alarm sounding means 1 is switched to the electrode supply state. In this state, turn on the horn switch 2.
When turned on, the sound generating means 1 emits a sound. Furthermore, a timer switch 12 is connected to the change switch 3. timer switch 1
2 starts counting when the change switch 3 turns on, maintains the on state for a certain period of time, and outputs an alarm sound from the sounding means 1 in the on state;
When the count ends, it is switched to the off state.

[effect]

In the automobile having the reverse alarm according to the present invention, when the transmission is switched to the reverse position, the rear alarm always sounds for a certain period of time, and after that, the generating means emits the alarm only when the horn switch is pressed. That is, the rear sounding means emits the alarm only immediately after the change gear is switched to the reverse position and only when the horn switch is pressed while the change gear is in the reverse position. Therefore, the vehicle of the present invention issues a warning to the rear for a short time immediately after the driver puts the gear shift lever into reverse, even if the driver cannot fully check the rear, and then issues the warning while the driver is looking at the rear. Even if there is an invisible person behind the car, after paying attention to this person,
It has the advantage of being able to be backed up safely. In addition, after the car of this invention puts the transmission into reverse, it issues an alarm regardless of whether or not the person behind it can be seen, but the alarm at this time sounds for a short time and then stops. It has the advantage of being able to back up safely without getting too messy. Furthermore, the automobile of this invention uses a circuit that sounds an alarm at the rear when the horn switch is pressed with the transmission in the bag, as well as a component that sounds the alarm for a short time, so a timer switch is installed in parallel with the hose switch. Just by installing it, you can make an alarm sound for a certain period of time. Therefore, the advantage of simplifying the circuit configuration can also be realized. In addition, most cars have a change switch that lights up the rear clamp when the gear shift lever is moved to the reverse position, but this change switch can also be used as a switch for the rear sounding means, making it easy and convenient for most cars. Moreover, it can be installed at low cost.

[Preferred embodiment]

Embodiments of the present invention will be described below based on the drawings. However, the embodiments shown below are intended to exemplify a device for embodying the technical idea of the present invention, and the device of the present invention does not differ in the materials, shapes, etc. of the component parts.
The structure and arrangement are not limited to those shown below.
Various modifications may be made to the device of the present invention within the scope of the claims. Further, in this specification, numbers corresponding to the members shown in the embodiments are added to the members shown in the claims so that the claims are easy to understand. However, the members described in the claims are by no means limited to the members shown in the examples. The automobile equipped with a back warning as shown in FIG. The change switch 3 is controlled to be turned off. FIG. 2 shows an electrical circuit diagram of the automobile shown in FIG. 1. The sound generation means 1 is a means that continuously or intermittently emits sounds such as beep, poo, boo, and pa, like a normal horn when energized, or a sound stored in a memory, such as "back", etc. Any device that produces an alarm sound can be used. As shown in Figure 3, the pronunciation means 1 that produces the sound will continue to emit the sound until at least one word has been uttered, so that even if the horn switch is pressed for a short period of time, the word "backup" will be uttered completely. The means is provided with a timer 4 that continues to emit a sound. As shown in FIG. 3, the sound generating means 1 for producing sounds includes a control circuit 5, a timer 4, a memory 6 for storing sounds, and a speaker 7. In this circuit, when signals from the horn switch 2 and change switch 3 are input to the control circuit 5, the timer 4 starts counting, and at the same time, the sound stored in the memory 6 is sent to the control circuit 5. The signal is power amplified and output from the speaker 7. When the memory 6 finishes uttering the determined word, the timer 4 detects this and the control circuit 5
stops speaking. When both horn switch 2 and change switch 3 are held in the on state,
The control circuit 5 continuously emits an alarm sound from the speaker 7. The horn switch 2 can also be used as a switch that sounds the front horn of the car, and the change switch 3 is
Can also be used as a switch for turning on the cross-clamp. In FIG. 1, a change switch 3 and a sound generating means 1 are connected in series between a cross clamp 8 and a vehicle body ground. That is, the sounding means 1 is connected in series with the change switch 3 and the horn switch 2, and when both switches 2 and 3 are in the on state, the sounding means 1 emits an alarm sound. In the electric circuit shown in FIG. 2, when the change switch 3 is turned on, the sound generating means 1
One terminal of the horn is connected to the battery 13, and when the horn switch 2 is pressed in this state, the sounding means 1 generates an alarm sound. Diode 14 connected in series to sound generating means 1
is for backflow prevention, and without it, electricity would be supplied from the battery 13 through the front horn 11, sounding means 1, and back clamp 8. Furthermore, FIG. 4 shows a circuit that makes the front horn 11 not sound when the rear sounding means 1 emits an alarm sound. In this case, the excitation coil 10 of the switching relay 9 is connected in parallel with the cross clamp 8,
The switching relay 9 also switches between the front horn 11 and the rear sounding means 1, so that only one of them sounds. Therefore, the normally closed contact b of the switching relay 9 is connected to the front horn 11,
A normally open contact a is connected to the sound generating means 1, and a common contact c of the relay is connected to the horn switch 2. The changeover relay 9 is energized when the changeover switch 3 is turned on and the back lamp 8 is lit by switching the speed change lever to the backward position, and switches the common contact c to the rear sounding means 1. Therefore, when the horn switch 2 is pressed in this state, only the rear sounding means 1 emits an alarm sound. When the gear shift lever is not in the reverse position, the cross clamp 8 is turned off, the switching relay 9 is not energized, and the common contact c of the horn is connected to the front horn 11 side, and when the horn switch 2 is pressed, the front horn 11 only sounds, and the rear sounding means 1 does not make any sound. This circuit only emits sound from either the front or the rear, so it has the advantage of being efficient in producing sounds and not emitting unnecessary noise to the surrounding area, effectively calling attention to it. Furthermore, as shown by the chain line in FIG. 1, a timer switch 12 is connected in parallel with the horn switch 2, so that immediately after the gear shift lever is switched to the reverse position, a constant state of It is configured to sound the sounding means 1 that is later in time. Timer switch 12 is change switch 3
With an input signal from can be switched to the state. The timer setting time is adjusted to, for example, 1 to 5 seconds. After the timer switch 12 finishes counting, the change switch 3 is in an on state and the sound generating means 1 emits an alarm only when the horn switch 2 is pressed.

[Brief explanation of drawings]

FIGS. 1, 2, and 4 are schematic block diagrams showing embodiments of the present invention, and FIG. 3 is a block diagram showing an example of the sound generating means. 1... Pronunciation means, 2... Horn switch, 3...
...Change switch, 4...Timer, 5...Control circuit, 6...Memory, 7...Speaker, 8...
...X clamp, 9...Switching relay, 10...Exciting coil, 11...Horn, 12...Timer switch, 13...Battery, 14...Diode.

Claims (1)

[Claims] 1. Alarm sounding means 1 mounted on the rear of the vehicle body.
, a horn switch 2 connected to the alarm sounding means 1 to emit an alarm sound, and a change switch 3 controlled by a transmission lever, and when the change switch 3 switches the transmission to the reverse position. In an automobile having a back-up alarm configured such that when the alarm sounding means 1 is switched to a power supply state and the horn switch 2 is turned on in this state, the sounding means 1 emits a sound, the change switch 3 is equipped with a timer switch 12. A timer switch 12 is connected in parallel with the horn switch, and the timer switch 12 starts counting when the change switch 3 is turned on, and remains on for a certain period of time. An automobile having a back alarm, characterized in that it is configured to emit an alarm sound from a sounding means 1 and to be switched to an OFF state when a count ends. 2. An automobile having a backup warning according to claim 1, wherein the sounding means 1 is a horn. 3. An automobile having a backup warning according to claim 1, wherein the sound generating means 1 is a sound generating means.