JP2018202953A - Retrofitted seat belt fastening detection sensor device - Google Patents

Abstract

To provide a retrofitted seat belt fastening sensor device that can be retrofitted to a seat belt of each seat, in public transportation means such as a bus that is used by many occupants.SOLUTION: A sensor device that can readily detect whether a seat belt is fastened or not can be retrofitted to a vehicle such as a bus that many occupants use, even if a seat belt has already been installed thereto.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sensor of a seat belt wearing detection system that is installed in a land vehicle, an aircraft, a ship, and the like and detects whether or not a seat belt is worn. The present invention relates to sensors for detecting whether or not a seat belt is worn. However, in the following, land vehicles, aircraft, ships, etc. are simply referred to as vehicles or vehicles.

  For example, in the case of a passenger car with a small number of seats, it is relatively easy for the driver to know whether or not the passenger is wearing a seat belt.

  However, in the case of a bus or other vehicle with a large number of seats, it is troublesome for the driver to know whether all the passengers are wearing seat belts, and passengers who are not wearing are often unaware. There are many things that run buses.

  As a result of such neglect, a painful accident has been seen, especially on high-speed buses, that lost a precious life that would have been saved if a seat belt was worn.

Now, in vehicles with a small number of passengers, such as passenger cars, it is detected whether or not the passenger is wearing a seat belt while traveling and the driver's seat and the seat next to it are not worn. It is enforced by law to provide a device for notifying the driver and the passenger himself with a warning sound or the like when detected.

  However, in the case of a bus or other vehicle with a large number of passengers, it is largely dependent on the passenger's own awareness whether the passenger is wearing a seat belt, and before the driver starts the vehicle to promote this awareness In general, announcements that prompt the user to wear a seat belt are given in the vehicle guidance.

In addition, a device has been devised such as installing a guidance display with a message prompting the user to wear a seat belt in the vicinity of each passenger's seat (for example, the back of the front seat).

However, since these methods ultimately depend on the occupant's awareness, it is practically extremely difficult to achieve a state in which all occupants are wearing seat belts. Even if it is confirmed that the passenger's seat belt is worn by going around each seat, it is impossible to detect it if the passenger stops wearing the seat belt while traveling. Despite the unoccupied passengers, dangerous situations such as traveling at high speed on highways and the like have been left unattended.

Therefore, a vehicle using a seat belt that incorporates a sensor system that detects whether a seat belt is worn is common, especially in vehicles with few passengers such as passenger cars, but in vehicles with many passengers such as buses, The situation where such a detection system is installed in a seat belt has not been widespread.

The purpose of this device is to provide a device that can be equipped with a sensor that can easily detect whether or not a seat belt has been worn later, even if the bus is equipped with a seat belt that is not equipped with a detection system. .

The system that displays the detected information on the display device installed in the driver's seat wirelessly or by cable has already been proposed to the JPO as “vehicle seat belt wearing detection system (Japanese Patent Application No. 16-142991)”. is there.

Japanese Patent Application No.16-142991

  The problem to be solved by this proposal is that in a vehicle with many passengers such as buses, the driver has no means of accurately confirming whether the passenger is wearing the seat belt correctly. While there is a possibility that there is a passenger who does not wear a seat belt during high speed driving, a dangerous situation of driving the vehicle is left unattended.

  In a vehicle such as a bus with many passengers, the present invention has already installed a sensor device that can easily detect whether or not a seat belt has been worn later, even if the seat belt has already been installed. It is possible to easily attach to the seat belt.

According to the present invention, since a seat belt wearing sensor can be easily installed later in a large number of passengers such as buses already used, a seat belt incorporating a new seat belt detection sensor inside It is possible to improve the vehicle to improve the safety of the passenger in the running state without exchanging it. For this reason, the time can be shortened and the installation cost can be reduced as compared with the case of replacing the seat belt with a newly installed seat belt detection system. Furthermore, in order to replace the seat belt with a new one, it is necessary to obtain the approval of the Ministry of Transportation. However, if it is retrofitted, it is not necessary, and labor and time can be saved.

FIG. 1 and FIG. 2 show a state in which a sensor unit as a main part to be retrofitted to a buckle part of a seat belt and a part as a sub part to a damper plate part are attached. It is also conceivable to cover a heat shrinkable tube for the purpose of protecting the sensor unit.

FIG. 3 shows only the sensor unit portion.

Furthermore, it is conceivable that a display device such as an LED is attached to the main part of each sensor, and the display device blinks or lights up when the seat belt is not worn, and turns off or changes the color of the LED when worn. Thus, the passenger or a person around the passenger can easily notice that the seat belt is not worn, and can prompt the user to wear it.

FIG. 1 is a view showing a system using a magnetic sensor as an example of a retrofit seat belt wearing sensor device of the present invention. A magnetic sensor is installed near the insertion hole of the buckle, and a magnetic piece is installed at a predetermined position of the tongue plate that the sensor approaches when the seat belt is worn. In addition, an LED that repeats flashing when not installed is installed in a conspicuous position of the sensor unit. When the occupant wears the seatbelt, it is detected that the current has flowed when the magnetic sensor is closest to the magnetic piece. Since the method using the reed switch is the same in the figure, FIG. 1 is also used. FIG. 2 is a view showing a system using a photo sensor of another example of the retrofitting seat belt wearing sensor device of the present invention. A photo sensor is installed near the insertion opening of the buckle, and when the seat belt is worn, a reflector made of a piece of small metal that reflects light is installed at a predetermined position of the tongue plate that the sensor approaches. In addition, an LED that repeats flashing when not installed is installed in a conspicuous position of the sensor unit. When the occupant wears the seat belt, the photo sensor receives light from the reflection plate, and it is detected that the current flows and is mounted. Fig. 3 is a diagram showing the state of the sensor unit and the LED incorporated in it. In this figure, the LED is installed on one side, but it is not limited to this part, and it is installed on any side of the sensor unit. It doesn't matter. Further, FIGS. 1 and 2 depict a heat shrinkable tube for protecting the sensor unit portion.

Claims (7)

  A retrofit seat belt detection sensor device capable of attaching a device for detecting whether or not a seat belt is worn on a seat belt of a vehicle that has already been installed. 2. A sensor device for detecting the wearing of a retrofitted seat belt according to claim 1, wherein a magnetic sensor device that senses magnetism is attached to a buckle side portion of a seat belt, and a magnet that generates magnetism is attached to a tongue plate side portion. . 2. A sensor device for detecting the wearing of a retrofitted seat belt according to claim 1, wherein a light sensor device for emitting light is attached to the buckle side portion of the seat belt, and a light reflecting component is attached to the tongue plate side portion. . A reed seat belt wearing detection sensor device according to claim 1, wherein a reed switch that senses magnetism is attached to a buckle side portion of a seat belt, and a magnet that generates magnetism is attached to a tongue plate side portion.  5. A retrofit seat belt detection sensor device according to claim 2, 3 or 4, wherein a light emitting device such as an LED is incorporated in a magnetic sensor device attached to a buckle portion of a seat belt or an optical sensor device such as an infrared ray. . According to claim 5, the light emitting device emits light that continuously or flashes when the seat belt is not worn, and turns off or changes to another color when it is detected that the seat belt is worn. A sensor device for detecting the wearing of a retrofitted seat belt. 5. A retrofit seat belt wearing detection sensor according to claim 2, 3 or 4, wherein a protective skin such as a heat-shrinkable tube is used so as to cover the lead wire from the sensor device, the sensor device portion, or both. apparatus.