JP4036092B2 - Seat belt wearing promotion device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat belt wearing promotion device.
[0002]
[Prior art]
Conventionally, when driving without wearing the seat belt, it is common to call attention with the warning light provided on the instrument panel, but this warning light is difficult to check, so wearing the seat belt Attention may be reduced, and as a result, the seat belt wearing rate may deteriorate.
[0003]
Therefore, when the vehicle is run with the seat belt not worn, the passenger is prompted to wear the seat belt by sound or an image (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-212357 (page 3, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in such a conventional seatbelt attachment / detachment confirmation device, when the seatbelt is not worn, it is merely notified by voice or image, so that it does not give a strong recognition of the seatbelt wearing to the occupant, and as a result, the seatbelt It is hard to say that it will greatly contribute to the improvement of the wear rate.
[0006]
Therefore, when the seat belt is not worn, the present invention allows the seat belt to be actively worn by hanging the webbing in the vicinity of the occupant to give an unpleasant trouble, thereby increasing the seat belt wearing rate. A wear promoting device is provided.
[0007]
[Means for Solving the Problems]
In the seat belt wearing promotion device of the present invention, the webbing is restrained from the shoulder part of the occupant seated on the seat to the waist part by the webbing guided to the guide support part provided at the upper part on the side of the passenger compartment, and the webbing In the seat belt in which the winding and unwinding of the seat belt are performed by an electric retractor, a seat belt wearing detection means for detecting wearing or not wearing of the seat belt, an ignition switch is turned on, and the seat belt wearing detection means When it is detected that the seat belt is not worn, the electric retractor is driven to automatically feed the webbing to a predetermined length that hangs down from the guide support portion and swings in the vicinity of the side of the occupant due to the swing of the vehicle. And a control means .
[0008]
【The invention's effect】
According to the present invention, when the occupant is not wearing a seat belt when the ignition switch is turned on, the control means hangs down from the guide support part by driving the electric retractor, and the vicinity of the side of the occupant due to the shaking of the vehicle Since the webbing is automatically fed out to a predetermined length that swings at, the drawn webbing hangs down from the guide support provided on the upper side of the passenger compartment. Therefore, the occupant feels uncomfortable because the hanging portion is troublesome.
[0009]
For this reason, a passenger | crew comes to wear a seat belt positively in order to remove the drooping part of webbing which causes the unpleasant annoyance, and can improve a belt wearing rate by extension.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
1 to 6 show an embodiment of a seatbelt wearing promotion device according to the present invention, FIG. 1 is a perspective view of a vehicle seat and a seatbelt, and FIG. 2 is a perspective view of a seatbelt as viewed from the inside of the vehicle interior. 3 is a system circuit diagram of the seat belt wearing promotion device, FIG. 4 is a perspective view of a tongue and buckle of the seat belt incorporating the seat belt wearing detection means, and FIG. 5 is a flowchart for executing control of the seat belt wearing promotion device. FIG. 6 is a cross-sectional view showing the retracted state of the seat belt when the seat belt wearing promotion device is not operated and (a) when the seat belt wearing promoting device is operated (b).
[0012]
The seat belt wearing promotion device 10 of the present embodiment is applied to a seat belt 11 provided on a vehicle seat 1 as shown in FIG.
[0013]
The vehicle seat 1 includes a seat cushion 2 that supports the weight of an unillustrated occupant and a seat back 3 that supports the back of the occupant, and a headrest 4 is mounted on the center of the upper end of the seat back 3. ing.
[0014]
The seat belt 11 includes a webbing 12 for restraining an occupant, a tongue 13 fixed to a predetermined position of the webbing 12, a buckle 14 for detachably attaching the tongue 13, and an electric retractor for winding and unwinding the webbing 12. 15.
[0015]
The webbing 12 has its one end side 12e guided to a guide support portion 16 provided on the upper part of the pillar 5 on the side of the passenger compartment, and is then passed through the pillar 5 and attached to the lower part of the pillar 5. The retractor 15 is wound up.
[0016]
Accordingly, in the natural state, the webbing 12 is wound around the electric retractor 15 and the one end side 12e is stored in the pillar 5, and in use, the electric retractor 15 operates in the rewinding direction and is fed out from the pillar 5, By attaching to the buckle 14 provided on the lower side opposite the seat back 3, the occupant is restrained obliquely downward from the shoulder at the upper portion 12 U of the tongue 13 of the webbing 12, and below the tongue 13 of the webbing 12. The occupant's waist is restrained by the portion 12L.
[0017]
Here, in the seatbelt wearing promotion device 10 of the present embodiment, as shown in FIGS. 1 and 3, a buckle switch 20 as a seatbelt wearing detection means for detecting whether the seatbelt 11 is worn or not worn, In a state where the ignition switch is turned on, that is, in a state where the ignition switch 21 (see FIG. 3) is turned on, the controller 22 as a control means for driving the electric retractor 15 and feeding the webbing 12 by a predetermined amount when the seat belt 11 is not worn. And.
[0018]
The seat belt wearing promotion device 10 is provided in each of a driver seat belt 11A and a passenger seat belt 11B. As shown in FIG. 3, each seat belt 11A for the driver seat and passenger seat 11A, An on / off signal of the 11B buckle switch 20A, 20B and an on / off signal of the ignition switch 21 are respectively output to the controller 22, and the controller 22 allows the seat belts 11A, 11B for the driver seat and the passenger seat to be The electric retractors 15A and 15B are driven and controlled independently of each other.
[0019]
The buckle switch 20B for the passenger seat is connected in series with a normally-open seating switch 23 for detecting that the passenger is seated in the passenger seat. The seat switch 23 is turned on, that is, the passenger is seated in the passenger seat. Thus, an on or off signal of the buckle switch 20B can be output to the controller 22.
[0020]
The buckle switches 20A and 20B for the driver's seat and the passenger's seat are each configured as a normally closed switch, and are turned on when the tongue 13 of the seat belt 11 is detached from the buckle 14 and the seat belt is not worn as shown in FIG. On the other hand, the seat 13 is turned off when the seat belt is worn with the tongue 13 inserted into and engaged with the buckle 14.
[0021]
Further, the seat belt wearing promotion device 10 of the present embodiment is provided with a warning lamp 24 and a warning sound generator 25 for warning when the seat belt 11 is not worn, and the seat belt 11A for the driver's seat is not worn. Or when the passenger is seated in the front passenger seat and the front passenger seat belt 11B is not worn, the controller 22 outputs an operation signal to the warning lamp 24 and the warning sound generator 25. Yes.
[0022]
The controller 22 controls the seat belts 11A and 11B on the driver seat side and the passenger seat side independently, and FIG. 5 (a) controls the promotion of wearing the seat belt 11A on the driver seat side. FIG. 5B is a flowchart for controlling the promotion of wearing the seat belt 11B on the passenger seat side.
[0023]
The control of the seat belt 11A on the driver's seat side will be described with reference to FIG. 5A. First, after it is determined in step S1 that the ignition switch 21 is on, the buckle switch 20A is turned on in step S2, that is, the seat belt is not worn. In step S3, an operation signal is output to the warning lamp 24 and the warning sound generator 25 to turn on the warning clamp 24, and the warning sound generator 25 generates a warning sound. After the departure, the electric retractor 15A on the driver's seat side is driven in the rewinding direction in step S4.
[0024]
In step S5, it is determined whether or not the feeding amount of the webbing 12 fed out by rewinding the electric retractor 15A has reached a predetermined amount (for example, 200 mm). If the predetermined amount has been reached, the electric retractor 15A is stopped in step S6. To do.
[0025]
At this time, the electric retractor 15A is locked in the winding direction and can be extended by applying a tensile force in the extending direction. This is in the electric retractor 15B on the passenger seat side described later. Is the same.
[0026]
If the ignition switch 21 is off at step S1 and the buckle switch 20A is off at step S2, that is, when the seat belt is worn, the process returns to step S1 and reaches the predetermined amount at step S5. If not, the process returns to step S4 repeatedly.
[0027]
Accordingly, when the seat belt 11A on the driver's seat side is not worn when the ignition switch 21 is turned on (ignition switch 21 is turned on), the electric retractor 15A is rewound and the webbing 12 is fed out. As shown in the two-dot chain line and FIG. 6A, the webbing 12 in a tension state between the guide support portion 16 and the other end fixing portion 12f is as shown in the solid line in FIG. 2 and FIG. 6B. The load of the tongue 13 hangs down from the guide support portion 16.
[0028]
Further, the control of the passenger seat side seat belt 11B will be described with reference to FIG. 5B. In this case, the control is substantially the same as the control of the driver seat side seat belt 11A shown in FIG. The main difference is that the signal of the seat switch 23 for detecting whether or not an occupant is seated in the passenger seat is taken into consideration.
[0029]
That is, first, when it is determined in step S11 that the ignition switch 21 is on, and in step S12, it is determined that the seating switch 23 is on (occupant seated state), the buckle switch 20B is turned on in step S13. It is determined whether or not (seat belt is not worn), and if it is not worn, an operation signal is output to the warning lamp 24 and the warning sound generator 25 in step S14, and then the electric retractor 15B on the passenger seat side is outputted in step S15. Is driven in the rewind direction.
[0030]
Then, the feeding amount of the webbing 12 is determined in step S16, and when the predetermined amount (for example, 200 mm) is reached, the electric retractor 15B is stopped in step S17.
[0031]
Therefore, even when the passenger is seated in the passenger seat side seat belt 11B, when the seat belt is not worn when the ignition switch 21 is turned on, the electric retractor 15B is unwound and the webbing 12 is unwound. Therefore, the webbing 12 hangs down from the guide support portion 16 like the seat belt 11A on the driver's seat side.
[0032]
With the above configuration, in the seatbelt wearing promotion device 10 of the present embodiment, when the occupant turns on the ignition switch 21 with the seatbelt 11 not worn, the controller 22 drives the electric retractor 15 to perform the webbing 12. The webbing 12 hangs down from the guide support portion 16 provided on the upper portion of the pillar 5 and the suspending portion swings around the side of the occupant with the tongue 13 as a weight due to swaying when the vehicle is running. Feels uncomfortable because the hanging part is bothersome.
[0033]
For this reason, a passenger | crew comes to wear seatbelt 11 positively in order to remove the drooping part of webbing 12 which causes the unpleasant troublesomeness, and can raise a seatbelt wearing rate by extension.
[0034]
In particular, in the present embodiment, the seat belt wearing promotion device 10 is provided not only on the driver's seat belt 11A but also on the passenger's seat belt 11B. Therefore, when the passenger is seated on the passenger seat, If at least one of the seat belt 11A for the seat and the seat belt 11B for the passenger seat is not worn, the webbing 12 of the seat belts 11A and 11B that are not worn can be hung down. Therefore, it is possible to increase the seat belt wearing rate of passengers in the passenger seat.
[0035]
By the way, although the seatbelt wearing promotion apparatus of this invention was demonstrated taking the example to the said embodiment, it can take various embodiment in the range which does not deviate from the summary of this invention without being restricted to this embodiment.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle seat and a seat belt according to an embodiment of the present invention.
FIG. 2 is a perspective view of a seat belt as viewed from the inside of a vehicle cabin according to an embodiment of the present invention.
FIG. 3 is a system circuit diagram of the seat belt wearing promotion device according to the embodiment of the present invention.
FIG. 4 is a perspective view of a tongue and a buckle of a seat belt incorporating a seat belt wearing detection unit according to an embodiment of the present invention.
FIG. 5 is an explanatory diagram showing a flowchart for executing control of the seat belt wearing promotion device according to the embodiment of the present invention.
FIGS. 6A and 6B are cross-sectional views illustrating a retracted state of the seat belt in one embodiment of the present invention when the seat belt wearing promotion device is not in operation (a) and when the seat belt wearing promotion device is in operation (b).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vehicle seat 10 Seatbelt wearing promotion apparatus 11 Seatbelt 11A Driver's seat side seatbelt 11B Passenger seatside seatbelt 12 Webbing 15 Electric retractor 15A Driver's seat side electric retractor 15B Passenger seat side electric retractor 16 Guide support 20 Buckle switch (seat belt wearing detection means)
20A Driver side buckle switch 20B Passenger side buckle switch 21 Ignition switch 22 Controller (control means)
23 Seat switch

Claims (1)

Seatbelt restrained from the shoulder to the waist of the occupant seated on the seat by the webbing guided to the guide support provided at the upper side of the passenger compartment, and the webbing is wound and unwound by an electric retractor In
Seat belt wearing detection means for detecting a wearing situation of wearing or not wearing a seat belt;
When the ignition switch is turned on and the seatbelt wearing detection means detects that the seatbelt is not worn, the electric retractor is driven to hang down from the guide support portion and to the side of the occupant due to the shaking of the vehicle And a control means for automatically feeding out the webbing to a predetermined length that swings in the vicinity .

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