JP2537624B2 - Automobile seat belt device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a seat belt device for an automobile such as a pillarless hardtop in which a front seat belt is pulled out from a retractor arranged in a rear door. Regarding

(Prior Art) Conventionally, as a seat belt device for an automobile of the above-mentioned example,
For example, there is an apparatus described in Japanese Utility Model Publication No. 57-51959.

That is, a shoulder belt for restraining the occupant's chest of the front seat is provided, a retractor for winding one end of the shoulder belt is arranged on the vehicle body, and a slip guide as a guide member for guiding the shoulder belt is provided in the front seat. The seat belt device is attached to the outer side of the upper end of the seat back.

When the above retractor is arranged in the center pillar, no problem arises. However, when this seat belt device is applied to, for example, a pillarless hardtop and the above retractor is arranged inside the rear door, Such problems arise.

In other words, when the rear door is opened while the retractor is locked, the shoulder belt is pulled, so that the chest of the occupant of the front seat is tightened.

(Object of the Invention) The present invention has a peculiar configuration that adjusts the length of the seat belt between the door side belt guide and the retractor in conjunction with opening and closing of the rear door. It is an object of the present invention to provide an automobile seat belt device in which the chest of the passenger is not tightened, and the full opening angle of the rear door can be set large.

(Structure of the Invention) According to the present invention, a retractor that winds up one end of a shoulder belt that restrains the occupant chest of the front seat is arranged on the rear door, and a guide member that guides the shoulder belt is located outside the upper end portion of the seat back of the front seat. The retractor is attached to the rear door so as to be slidable in the vertical direction on the rear door through a slide mechanism, and between the retractor and the door opening / closing mechanism, when the rear door is opened, the door-side belt guide and the retractor are connected. The seat belt device for an automobile is provided with an adjusting means for shortening the length of the seat belt between them.

According to the present invention, when the above-mentioned rear door is opened, the action of the adjusting means provided between the door opening / closing mechanism and the retractor causes the seat belt between the door-side belt guide and the retractor to move. The length can be shortened.

As a result, even if the retractor is in the locked state, the other end of the shoulder belt is pushed out to the front seat side by the length of the seat belt shortened, so that the shoulder belt occupants the front seat. It is possible to prevent the chest from being tightened, and it is possible to set the full opening angle of the rear door to a large value.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing shows a seat belt device of an automobile. In FIG. 1, a tunnel 5 extending in the vehicle front-rear direction is formed at a substantially central portion of a floor panel 4 of a pillarless hard top 3 having a front door 1 and a rear door 2.

The above-mentioned tunnel 5 is provided with a buckle member 6 on the driver's seat side, and the buckle member 6 is configured to engage and disengage the tongue plate 8 at the tip of the shoulder belt 7.

Further, the lap belt 11 is led out from the retractor 10 disposed inside the side member 9, and the tip of the lap belt 11 is integrally attached to the tongue plate 8 described above.

The shoulder belt 7 described above is a belt for restraining the occupant's chest of the front seat 12 on the driver's side, and the shoulder belt 7 is provided with a slip guide 14 mounted on the outer side of the upper end of the seat back 13 of the front seat 12. It is connected to a retractor 15 described later.

Here, the above-mentioned front seat 12 has a seat cushion 16, a seat back 13, and a headrest 17, and a spacer is provided outside the upper end portion of the above-mentioned seat back 13.
The slip guide 14 is attached via 18 and the shoulder belt 7 is guided by the slip guide 14.

By the way, the pillar-less hard top 3 has a center pillar 21 that joins the pillar outer panel 19 and the pillar inner panel 20 and extends to the belt line, as shown in FIG. 4, and at the front of the center pillar 21. The above-mentioned front door 1 and the rear door 2 are arranged at the rear.

The above-mentioned front door 1 is constructed by joining a door outer panel 22 and a door inner panel 23, and similarly, the above-mentioned rear door 2 is constructed by joining a door outer panel 24 and a door inner panel 25. A rear door trim 26 is attached to the side surface of the vehicle compartment.

A front door trim 27 is attached to the side surface of the front door 1 as shown in FIG. The retractor 15 which winds up one end of the shoulder belt 7 is arranged on the rear door 2 as shown in FIGS.

That is, a pair of front and rear outer rails 28, 2 extending in the vertical direction is provided on a predetermined portion of the door inner panel 23 of the rear door 2.
8 while fixing the outer rail 28,
Inner rail 2 inserted into the outer rails 28, 28 by fixing the inner rails 29, 29 in the vertical direction in correspondence with 28.
A slide mechanism 31 is configured by interposing balls 30 between the outer rails 28, 28 and the outer rails 28, 28 described above.
Thus, the retractor 15 described above is supported slidably in the vertical direction.

On the other hand, a hinge mail 32 is attached to the pillar outer panel 19 of the center pillar 21, and the rear door 2 is attached to the hinge mail 32 via a hinge pin 33 and a hinge female 34 so that the rear door 2 can be opened and closed. Attach the door checker 36 as a door opening / closing mechanism via the 35
The front end of 36 is projected into the door inner panel 25 from the front end opening 25a thereof.

Moreover, an L-shaped arm as a linking member pivotally rotatably attached to a predetermined portion in the door inner panel 25 by a pivot pin 37.
38 is provided, and the L-shaped arm 38 links the retractor 15 and the door checker 36 to raise the retractor 15 when the rear door 2 is opened. That is, when the rear door 2 is opened, the length of the shoulder belt 7 between the sash guide 45 as the door side belt guide and the retractor 15 is shortened.

That is, a long hole formed at one end of the L-shaped arm 38 described above.
A pin 41 projecting from the lower tongue piece 40 of the retractor 15 is inserted into the 39, and a long hole 42 formed at the other end of the L-shaped arm 38.
A pin 43 at the tip of the door checker 36 is inserted into the inside of the door checker 36, and the L-shaped arm 38 links the above-mentioned both 36 and 15 with each other to move the retractor 15 upward along the slide mechanism 31 when the rear door is opened and closed. are doing.

Further, the retractor 15 in the door inner panel 25 described above
At the upper position, a sash guide 45 having an arc groove 44 for guiding the shoulder belt 7 is fixed, while the arc groove 44 described above is provided.
A belt lead-out hole 46 is opened in the rear door trim 26 facing the rear door trim 26, and the shoulder belt 7 from the retractor 15 is connected to the above-mentioned circular groove.
44, the belt lead-out hole 46, and the slip guide 14 are led out to the front seat 12 side through this order.

In FIG. 1, 47 is a front door glass, 48
Is a rear door glass, and 49 is a rear seat.

The illustrated embodiment is configured as described above, and the operation will be described below.

Now, the occupant seated on the front seat 12, the shoulder belt 7 and the tongue plate 8 at the tip of the lap belt 11 are engaged with the buckle member 6 to restrain the occupant's chest with the shoulder belt 7 described above, while temporarily rearing the rear door 2. When another occupant opens, the front end of the L-shaped arm 38 is pulled forward by the door checker 36, as shown in FIGS. 6 to 8.

Therefore, the L-shaped arm 38 described above rotates about the pivot pin 37 in the direction of arrow a in FIG.
At the rear end, the retractor 15 is pushed upward through the slot 39, the pin 41 and the lower tongue piece 40.

Since the retractor 15 is elevated by a predetermined amount along the slide mechanism 31, the other end of the shoulder belt 7 is attached to the front seat.
The same amount is extruded on the 12 side.

As a result, when the rear door 2 is opened, it is possible to prevent the occupant's chest of the front seat 12 from being tightened by the shoulder belt 7 described above, and the full-open angle of the rear door 2 can be set to a large value.

In addition, the above-mentioned tightening prevention effect is the same as the existing door checker.
It is extremely practical because 36 can be used effectively.

In the correspondence between the configuration of the present invention and the above-described embodiment, the guide member of the present invention is the slip guide 14
Similarly, the door side belt guide corresponds to the sash guide 45, the door opening / closing mechanism corresponds to the door checker 36, and the adjusting means corresponds to the L-shaped arm 38, a so-called counter bar. Is not limited to the configuration of the above-described embodiment.

Further, although the seatbelt device for the driver's seat has been illustrated in the above embodiment, it goes without saying that the seatbelt device of the present invention may be applied to the passenger seat side.

[Brief description of drawings]

1 is a perspective view showing a seat belt device of an automobile, FIG.
The figure is a schematic side view of the seat belt device, FIG. 3 is a front view of the same device, FIG. 4 is a plan view of the same device, FIG. 5 is an explanatory view of a slide mechanism, and FIG. FIG. 7 is a schematic side view, FIG. 7 is a front view when the door is open, and FIG. 8 is a plan view when the door is open. 2 …… Rear door, 7 …… Shoulder belt 12 …… Front seat, 13 …… Seat back 14 …… Slip guide, 15 …… Retractor 31 …… Sliding mechanism, 36 …… Door checker 38 …… L-shaped arm, 45 ...... Sash guide

Claims (1)

(57) [Claims] 1. A retractor for winding one end of a shoulder belt for restraining an occupant's chest of a front seat is arranged on a rear door, and a guide member for guiding the shoulder belt is attached to an outer side of an upper end portion of a seat back of the front seat. The retractor is supported by the rear door so as to be vertically slidable via a slide mechanism, and between the retractor and the door opening / closing mechanism, the seat belt between the door side belt guide and the retractor when the rear door is opened. Seatbelt device for automobiles provided with adjusting means for shortening the length of the vehicle.