JPS586748Y2 - Seat belt device in vehicle - Google Patents

Description

[Detailed description of the invention] This invention is a seat belt for a vehicle that automatically attaches and releases the seat belt to the occupant sitting on the second seat in conjunction with the opening and closing of the opening/closing door. It is related to the device.

The seat belt is automatically fastened to the occupant seated on the seat in conjunction with the closing operation of the opening/closing door, and the seat belt is automatically released in conjunction with the opening operation of the opening/closing door. Seatbelt devices usually called "passive seatbelts" are already known, but in the conventional ones, as shown in Japanese Patent Application Laid-Open No. 48-87524, seatbelts are disposed on the center side of the vehicle body. Since the operation guide means was disposed on the top surface of the console box across the front and rear ends of the console box, the structure of the top surface of the console box, where the gear shift lever and other operating members were concentrated, became even more complicated due to the special installation of the operation guide means. Therefore, there have been disadvantages such as increased cost, reduced operability of the upper operating member, and significant deterioration of the appearance of the upper surface of the console box, which is easily noticed by passengers.

The object of the present invention is to provide a seat belt device with a simple structure, which can eliminate the drawbacks of the conventional ones, and also allows the occupant to sit in the seat extremely smoothly. be.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. A door 2 is hinged to an entrance 1 of a vehicle body B so as to be openable and closable, and a seat 3 is installed inside the door 2 in the vehicle body B. .

There is a retractor 4 on the back floor of the seat 3 on the center side of the vehicle body B.
is fixedly installed adjacent to the lower end of the first guide rail 9, which will be described later,
One buckle half 71 of the buckle 7 is tied to the outer end of the first seat belt 5 wrapped around the retractor 4.

A first slide ring 8 is slidably inserted into the first seat belt 5.

On the other hand, on the side end surface of the backrest 3' of the seat 3 on the center side of the vehicle body B, that is, on the side away from the opening/closing door 2, the backrest 3'
A first guide rail 9 is provided in the vertical direction along ', and the first slide ring 8 is slidably engaged with the first guide rail 9.

A first motor 10 provided in the seat 3 is linked to the first slide ring 8 by a conventional means, and the first slide ring 8 is moved up and down along the first guide rail 9 by driving the motor 10. can.

A guide ring 11 through which the second seat belt 6 is inserted is fixed to the other buckle half 7□ICIti of the buckle 7.

The second seat belt 6 has its upper end tied to the open side upper edge of the opening/closing door 2 with a shoulder anchor 12, extends in front of the seat 3, and is attached to the guide ring 11.
After the second slide ring 13 is inserted through the second slide ring 13, its lower end is tied to the open-side lower end of the opening/closing door 2 via a lower anchor 14.

A second guide rail 15 is formed at the lower part of the inner surface of the opening/closing door 2 so as to follow the lower surface of the armrest 16.
The second slide ring 13 is slidably engaged with the guide rail 15, and a second motor 17 installed inside the door 2 is interlocked with the second slide ring 13 by a conventional means.

By driving the second prime mover 17, the second slide ring 13 can slide back and forth along the second guide rail 15.

A door switch 18 is provided at the entrance 1 of the vehicle body B, and the door switch 18 is operated in conjunction with the opening and closing of the opening/closing door 2.

At the upper and lower ends of the first guide rail 9 and the front and rear ends of the second guide rail 15, limit switches S1.
S2 and S3. S4 are provided, which are actuated by said first and second slide rings 8 and 13 to stop the rotation of said first and second prime movers 10.17.

Next, the operation of the first embodiment of the present invention shown in FIG. 1 will be explained. When the opening/closing door 2 is closed, the first and second
The seat belts 5, 6 are in the retracted position shown in solid lines in FIG.

When the opening/closing door 2 is opened now, the door switch 18 is activated and the first and second prime movers 10.17 are energized to drive them forward rotation, and the first slide ring 8 is moved to the first position on the side edge of the backrest 3'.
At the same time as the second slide ring 13 slides upward along the guide rail 9, the second slide ring 13 also slides upward along the second guide rail 1 on the inner surface of the opening/closing door 2.
5, and the first and second slide rings 8 and 13 are connected to the first and second guide rails 9 and 15, respectively.
When reaching the upper and front ends of limit switch S1.
S3 is activated to cut off the power to the first and second prime movers 10.17, and the first and second slide rings 8, 13 stop sliding.

As a result, the first seat belt 5
is pulled out from the retractor 4, extends upward approximately along the backrest 3', is guided by the first slide ring 8 that has moved upward, is bent, and then extends forward, and the buckle 7 at the end can be opened and closed. Move close to the front of door 2.

As the first seat belt 5 is pulled out, the second seat belt 6 is guided by the second slide ring 13 and extends in a dogleg shape along the inner surface of the door 2, as shown by the chain line in FIG.

Therefore, the entrance/exit door 1 is wide open without being obstructed by the first and second seat belts 5.degree. 6, and the occupant can easily get off the vehicle, get on the vehicle, and sit on the seat 3.

When the occupant is seated and closes the opening/closing door 2, the door switch 1
8 is switched, the first and second prime movers 10.17 are operated in reverse, and the first and second slide rings 8, 13 are lowered and retreated along the first and second guide rails 9.15, respectively. They are limit switch S2. Contact S4 and the first
, the reverse operation of the second prime mover 10.17 has stopped, and the IJ
The l-actor 4 wraps the first seat belt 5 and
In the state shown by the solid line in the figure, the second seat belt 6 comes into contact with the body of the occupant on the seat 3, and the wearing of the seat belt is completed.

In this case, the retractor 4 locks the first seat belt 5 to prevent the first seat belt 5 from being pulled out when a large pulling force equal to or greater than the fixed layer value is applied to the first seat belt 5 after fixed amount winding.

FIG. 2 shows a second embodiment of the seat belt device of the present invention.

This second embodiment is different from the opening/closing door 2 in the first embodiment.
A sub-retractor 20 is provided at the lower end of the opening side of the second seat belt 6, and the lower end of the second seat belt 6 is wound around the sub-retractor 20.
The first and second seat belts pulled out by opening 5゜6
are the first and second seat belts 5 and 6 when the opening/closing door 2 is closed.
is caught by the retractor 4 and the sub-retractor 20, and the second seat belt 6 can be quickly attached to the occupant's body.

FIG. 3 shows a third embodiment of the seat belt device of the present invention.

In this third embodiment, the seat belt device of the present invention can be installed in a so-called "hard top" vehicle in which the opening/closing door 2 does not have a window frame. , the vehicle body B without being attached to the opening/closing door 2.
An upper guide rail 21 is provided in the front-rear direction along the upper edge of the entrance 1, and the upper end of the second seat belt 6 is inserted into the upper guide rail 21. The upper slide ring 22 is slidably engaged with the upper slide ring 22 provided in the vehicle body B, and the upper slide ring 22 is interlocked with the upper prime mover 23 provided on the vehicle body B by a conventional means. ring 22
can slide back and forth on the upper guide rail 21.

When the opening/closing door 2 is opened, the upper motor 23 is driven to rotate in the forward direction by switching the door switch 18, and the upper slide ring 22 moves forward along the upper door guide rail 21.
When the limit switch S5 is activated to stop at the front end position, and when the opening/closing door 2 is closed, the upper prime mover 23 is driven in the reverse direction by the switching operation of the door switch 1B, and the upper slide ring 22 is moved rearward along the upper guide rail 21. Move to
The limit switch S6 is activated to stop the second seat belt 6 at the rear end position, and the upper end of the second seat belt 6 eventually moves back and forth along the upper edge of the entrance/exit door 1 as the door 2 opens and closes.
When the opening/closing door 2 is opened, the entrance/exit door 1 can be opened widely, and when the opening/closing door 2 is closed, the second seat belt 6 can be properly worn by the occupant.

FIG. 4 shows a fourth embodiment of the seat belt device of the present invention.

In this embodiment, instead of the second guide rail 15 provided on the opening/closing door 2 in the third embodiment, a corresponding one is provided on the vehicle body B side, and the lower end of the second seat belt 6 A sub-retractor 20 for winding up the vehicle body B is attached to the rear lower part of the entrance 1 of the vehicle body B, and a lower guide rail 24 is installed in the front-rear direction along the lower edge of the entrance 1.
A second seat belt 6 is provided on the lower guide rail 24.
A second slide ring 13 inserted through the lower end of the vehicle body B is slidably engaged with the second slide ring 13, and a lower motor 25 provided on the vehicle body B is interlocked with this second slide ring 13 by a conventional means.

In this fourth embodiment, when the opening/closing door 2 is opened, the upper and lower prime movers 23,
The upper and second slide rings 22 and 13 are moved forward by the forward rotation of each of the retractor 4 and the second slide ring 25, and stopped at the front end position by the operation of the limit switches S5 and S7.
By pulling out the second seat belts 5, 6, the first and second seat belts 5, 6 are pulled out without blocking the entrance/exit 1, as shown by the chain line in FIG.

When the opening/closing door 2 is closed, the upper and lower motors 23 and 25 are both driven in reverse by the operation of the door switch 18, and the upper and second slide rings 22.13 are moved backward, and by the operation of the limit switches S6 and S8. The IJ tractor 4 and the sub-retractor 20 are stopped at the rear end position, and the IJ tractor 4 and the sub-retractor 20 are
By winding the second seat belt 5°6, the second seat belt 6 can be attached to the body of the occupant.

As described above, according to the present invention, a guide rail that extends in the vertical direction is provided on the side of the seat back that is away from the opening/closing door, and a guide rail that extends in the vertical direction is provided near the lower end of the guide rail on the floor surface of the central part of the vehicle body. A beam tractor is fixedly installed, and a slide ring inserted through a first seat belt fed out from the retractor is engaged with the guide rail, and this slide ring can be moved up and down along the guide rail as the door is opened and closed. and at the free end of the first seat belt,
A second seat belt attached to an occupant is slidably connected in the middle, an end of the second seat belt is connected to an opening/closing door or the vehicle body, and a slide ring is inserted through the second seat belt. Since it is attached to the opening/closing door or the vehicle body so that it can move back and forth as the door opens and closes,
A guide rail, a slide ring, and a retractor as actuation guide means for the first seat belt on the center side of the vehicle body are conveniently and concentrated on the side surface of the seat back on the side facing away from the opening/closing door and on the floor surface in the center of the vehicle body near its lower end. Therefore, it is possible to eliminate all the disadvantages of the conventional method in which the operation guide means is provided on the top surface of the console box. The existing dead space can be effectively used as the installation space for the operation guide means, and the operation guide means is hidden behind the seat backrest and is difficult to see from the outside, so there is no risk of spoiling the appearance of the passenger compartment.

In addition, since the slide ring has its upper limit regulated by a guide rail provided on the side of the backrest, the first seat belt inserted through the slide ring will be in a position above the backrest even when the opening/closing door is opened. There is no, therefore,
When the occupant is seated, the first seat belt remains below the occupant's face from beginning to end, so there is no fear of giving the occupant a feeling of pressure, and the sitting operation can be smoothly performed.

Furthermore, the seat backrest is only provided with the above-mentioned guide rail and a lifting mechanism for the slide ring, and the retractor is installed on the vehicle floor plate separately from these rails and the lifting mechanism, so the structure of the seatback is Complexity and enlargement can be minimized.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the first embodiment of the seat belt device of the present invention, Fig. 2 is a perspective view of the second embodiment, and Fig. 3 is the third embodiment of the seat belt device.
FIG. 4 is a perspective view of the fourth embodiment. 2... Opening/closing door, 3... Seat, 3'
...Backrest, 4...Retractor, 5,6
...First and second seat belts, 8, 13 and 22...First, second and upper slide rings as slide rings, 9...As guide rails 1st guide rail, B...car body.

Claims (1)

[Scope of claim for utility model registration] Automatically fastens a seat belt for a passenger sitting on a seat inside the vehicle body in conjunction with the closing operation of the opening/closing door, and automatically fastens a seat belt in conjunction with the opening operation of the opening/closing door. of seat belts,
In a seatbelt device for a vehicle that is designed to be released from the occupant, a guide rail extending in the vertical direction is provided on the side of the seatback resting away from the opening/closing door, and the guide rail is close to the lower end of the guide rail. A beam tractor is fixed on the floor surface of the central part of the vehicle body, and a slide ring inserted through the first seat belt fed out from the retractor is engaged with the guide rail, and this slide ring is opened and closed as the door is opened and closed. The second seat belt is movable up and down along the guide rail, and a second seat belt attached to the second passenger is slidably connected to the free end of the first seat belt, and the end portion of the second seat belt is slidably connected to the free end of the first seat belt. A slide ring connected to the opening/closing door or the vehicle body and further inserted through the second seat belt is attached to the opening/closing door or the vehicle body so as to be movable back and forth as the opening/closing door is opened and closed. A seat belt device in a vehicle.