JPH0818531B2 - Car seat belt equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile seat belt device.

[0002]

2. Description of the Related Art Generally, a front seat side such as a driver's seat or a passenger seat of an automobile is provided with a shoulder belt portion (hereinafter referred to as a shoulder portion) for preventing forward movement of an occupant's upper and lower body parts in the event of a collision. Seat belt device is installed.

In a seat belt device having such a shoulder portion, for example, as a first conventional example, in a general four-door vehicle or the like, one side of the webbing of the shoulder portion is usually used.
(Upper end side) is inserted and locked into an intermediate hanger (sash guide plate) that is locked to the upper part of the center pillar immediately after the front seat, and its extended end is further provided in the vehicle body quarter trim below the center pillar. It is configured by being wound around a seat belt retractor (for example, ELR type) (see, for example, Japanese Utility Model Laid-Open No. 61-37055).

However, in the case of such a configuration,
Even if the vehicle is a four-door vehicle, the intermediate hanger cannot be locked in the case of a center pillar-less vehicle such as a hard top vehicle without the above-described center pillar. Therefore, the intermediate hanger is also locked by using the roof side rail on the roof side, but in such a case, the seat belt is exposed as it is at the window part without the center pillar. There is a drawback that it becomes very bad looking.

Under these circumstances, recently, for example, as a second conventional example, in a two-door type vehicle having no rear door, one end of the shoulder portion is extended from the front seat to the rear, and the seat belt retractor thereof is provided. By providing both the rear hanger and the intermediate hanger part on the rear quarter panel part, the seat belt is positioned below the rear quarter window part, and it is proposed that the seat belt is not visible from the outside. Are
(See, for example, Japanese Utility Model Publication No. 53-165527).

On the other hand, for example, as a third conventional example, in a four-door vehicle having a rear door, the idea itself of providing the seat belt retractor above the rear door, or the seat belt retractor itself, hits the back of the front seat. A traction belt for locking the forward movement of the seatbelt retractor itself from the seatbelt retractor itself in the event of a vehicle collision, and extending to the rear rearward so that its tip is connected to the upper part of the rear door. There is also proposed a seat belt which is fixed so as to make the seat belt almost invisible (see, for example, Japanese Patent Publication No. 54-7097).

[0007]

By the way, the above second,
When the structure of the third conventional example is adopted, even if the two-door vehicle of the second conventional example has no problem, an automobile having a rear door like the four-door vehicle of the third conventional example. In this case, the one end of the seat belt shoulder should be connected so that the opening and closing of the rear door itself is not hindered and the seat belt retractor and its mounting part do not become an obstacle for rear seat occupants during a vehicle collision. Will be required.

On the other hand, considering the safety of the rear seat occupant in the event of a vehicle collision, it is required that the rear door cannot be easily opened even when the collision occurs.

From this point of view, considering the configuration of the third conventional example, first, in the configuration in which the seatbelt retractor is simply provided above the rear door, the guide of the seatbelt shoulder portion from the seatbelt retractor to the front seat is provided. Therefore, the rear door cannot be opened and closed smoothly. Also, in the door panel of the rear door, there are various mechanisms such as a door lock device and a window glass elevating mechanism, and an inevitably large predetermined space is required for elevating and lowering the window glass itself. Is big. Especially the upper part of the door. Therefore, if an attempt is made to install a box-shaped seat belt retractor having a size corresponding to the maximum winding state of the shoulder webbing at the same portion, the structure in which the door panel is inflated to the inside of the vehicle is inevitable. It is not preferable to form such a bulging portion on the upper part of the door panel because it is expected that an occupant in the rear seat may hit the chest in the event of a vehicle collision. Furthermore, unless the seat belt retractor installation portion itself is sufficiently rigid, the occupant locking force when the seat belt is locked becomes insufficient. Further, the structure for ensuring rigidity for that is likely to be complicated.

Next, the seat belt retractor described in the third conventional example is provided at the back contact portion of the front seat, and a traction belt is extended from the seat belt retractor to be connected to the rear door. In order to smoothly open and close the rear door, in addition to the function of expanding and contracting the shoulder portion of the seat belt in the front seat, the traction belt can be wound and pulled out by the seat belt retractor portion of the back contact portion. However, the seatbelt retractor portion essentially requires two sets of winding and locking mechanisms, which is disadvantageous in that the structure of the seatbelt retractor is complicated, large, and expensive. Further, as a result, design restrictions on the seat structure of the front seats are increased.

[0011]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above problems, and a shoulder belt for restraining a shoulder portion of a front seat occupant of an automobile having a rear door, and the shoulder belt. A seatbelt for a front seat of an automobile, comprising a seatbelt retractor that winds and locks one end of the belt, and a first belt guide that guides a pullout portion of the shoulder belt that is pulled out from the seatbelt retractor. In the device, the seat belt retractor is installed and fixed in a rear door vertical wall portion of the automobile, and the first belt guide is fixedly provided at an upper end portion of the rear door vertical wall portion, and the shoulder belt is provided from the seat belt retractor. The first belt guide through the inside of the rear door vertical wall portion It is made to extend in the Luo front seat direction.

[0012]

According to the above-described means, in a vehicle having a rear door such as a four-door vehicle, a seat belt retractor that winds and locks one end of a shoulder belt portion that restrains the shoulder portion of an occupant at the front seat of the vehicle is provided. The front end of the shoulder belt from the seat belt retractor, which is installed and fixed at a predetermined position in the rear door vertical wall portion of the car, first passes through the rear door vertical wall portion from the first belt guide on the upper end side of the rear door vertical wall portion. Pulled out. Then, after that, it is further bent and extended at a substantially right angle in the shoulder direction of the front seat through the first belt guide, and at the time of the extension, the drawer portion of the shoulder belt part in the front seat direction is extended. It is reliably and smoothly guided by the first belt guide fixedly provided on the upper end portion of the vertical wall portion of the rear door.

Therefore, according to this structure, the seat belt hardly extends upward from the upper end of the vertical wall portion of the rear door, and the portion from the seat belt retractor to the first belt guide is completely hidden in the door. The seatbelt disappears from the seat, which not only makes it look better, but also makes it look better from inside the vehicle and expands the field of view.
The habitability in the passenger compartment is greatly improved. In addition, it is relatively easy to adopt a sufficient reinforcing structure, and it is easy to adopt the upper end of the vertical wall of the rear door. By the tension locking of the vehicle, the load bearing strength at the time of a vehicle collision can be greatly improved, and the occupant locking performance can be sufficiently enhanced. At the same time, due to the high locking performance of the seat belt, it is possible to prevent the rear door from being opened in the event of an automobile collision, and it is possible to ensure the safety of the occupant on the rear seat side.

The seat belt retractor is
The first belt guide is provided in the vertical wall portion of the rear door, for example, in a vacant space such as in an armrest, and the tip of the shoulder belt pulled out from the seat belt retractor is utilized, for example, in the space between the door trim and the door inner panel. Since it is pulled out to the maximum, there is no restriction on the space inside the vertical wall of the original rear door.
Therefore, it can be applied to a rear door having a door lock mechanism, a window glass lifting mechanism, etc. without any problem. In addition, it is not necessary to form a bulging portion for the retractor, which is especially used for the vertical wall portion of the vehicle interior of the rear door, and the appearance can be improved, and the rear passengers can be protected from the strike. Further, by doing so, it becomes possible to prevent the seat belt from being locked when the front seat reclines.

Further, in the case of the above structure, even if the seat belt retractor is provided on the rear door side as described above, the webbing can be freely expanded and contracted in a normal state, and the rear door itself can be freely opened and closed.

Next, in the above case, if a second belt guide is further provided on the shoulder of the front seat, a proper shoulder mounting position can be set at all times and the rear door is opened. Also, the seat belt shoulder portion does not come off from the shoulder portion of the front seat occupant, and the wearing feeling is good.

[0017]

1 to 3 show an automobile seat belt device according to an embodiment of the present invention.

1 and 2, reference numeral 1
Is, for example, a three-point type seat belt provided corresponding to the driver's seat S.

The seat belt 1 includes a lap portion 2 extending and locked between the left and right ends of the waist portion of the driver's seat S, and a second and first belt guide members 3A, which have one end side of the webbing W. The seat belt retractor 4 is pulled out from the inside of the seat belt retractor 4 described later via 3B or the seat belt retractor 4 described later.
Webbing W that can be wound inside
The other end side of which is continuous to one end side of the lap portion 2 (shoulder belt portion) 5 and the first hanging metal fitting (sash) which is interposed at one end side of the lap portion 2 which is continuous with the shoulder portion 5 A guide plate) 6, a first buckle portion 7 that engages with the first hanging metal fitting 6 to lock the lap portion 2 and the shoulder portion 5 at one seat side of the driver seat S, and the lap portion. The second hook 8 is provided on the other end side of the seat 2 and the second buckle portion 9 that locks the second hook 8 on the other end side of the seat.

The seat belt retractor 4 is
As shown in detail in FIG. 2, it is incorporated in the armrest 11 formed in the door panel portion 10A of the vehicle body side rear door 10 as described below. That is, the second
In the figure, reference numeral 13 is a door outer panel of the rear door 10, and 14 is a door inner panel of the rear door 10. The door panel portion 10A is formed by integrally joining the door outer panel 13 and the door inner panel 14 together. A door window glass 15 is fitted on the upper part of the door glass 16 via a weather strip 16 so as to be slidable in the vertical direction.

The interior door trim (trim board) 1 is provided on the inner wall surface of the interior of the door inner panel 14.
7 is integrally joined and the door trim 1
The above-mentioned armrest 11 is formed in a substantially middle portion of 7 by bulging a part of the door trim 17 toward the vehicle compartment. A predetermined space portion 19 is formed inside the armrest 11 between the armrest 11 and the door inner panel 14, and the seatbelt retractor 4 described above is housed in the space portion 19 and the upper and lower portions formed on the periphery thereof. Flange part 2
It is fastened and fixed to the door inner panel 14 by bolt members 21 and 21 using 0 and 20.

An opening 22 for extending the seat belt webbing W pulled out from the upper portion of the seat belt retractor 4 is formed at a position above the seat belt retractor 4 at an upper edge portion of the door trim 17. The opening 22 is provided with the first belt guide member (cover member) 3B having a slit 23 corresponding to the sectional shape of the seat belt webbing W.
The first belt guide member 3B is integrally mounted over the upper end surface of the door inner panel 14 and the upper end portion of the door trim 17 so as to sufficiently maintain the supporting rigidity when the shoulder portion 5 is locked. It has become. Further, the slit 23 is formed so as to be inclined in parallel to the second belt guide member 3A on the right shoulder of the driver's seat S, and the seat belt webbing W is provided as much as possible. It is configured to be smoothly guided in both directions without twisting. Then, the seat belt webbing W pulled out from the seat belt retractor 4 passes through the guide hole 24 of the second belt guide member 3A from the first belt guide member 3B and reaches the shoulder portion 5 described above. It is continuous.

The second belt guide member 3A has a sectional structure having a guide hole 24 as shown in FIG. 3, and is attached to the right shoulder portion of the backrest portion 25 of the driver's seat S. There is.

Therefore, when the webbing W of the seat belt 1 is not used, the webbing W is wound and stored in the seat belt retractor 4 inside the armrest 11, while the second hanging metal fitting 8 on the tip end side thereof. The webbing W is pulled out by first pulling the second hanging metal fitting 8 onto the second buckle portion 9 and the first hanging metal fitting 6
When the webbing W is engaged with the first buckle portion 7 respectively, the webbing W is stretched at three points while forming the above-mentioned lap portion 2 and shoulder portion 5 as shown in FIG.

In this state, the shoulder portion 5 is
Will extend in the vertical direction of the slope at the position of the backrest portion 25 of the driver's seat. Therefore, unlike the case where the shoulder belt is located close to the windshield, the shoulder belt is hardly visible from the outside, and the appearance is further improved.

Further, one end of the shoulder portion 5 is firmly supported by the first belt guide member 3B having high support rigidity, the occupant locking load at the time of a vehicle collision is dispersed over the entire door, and the load bearing strength of the seat belt is increased. improves. Further, as a result, the opening of the rear door 10 is prevented as much as possible by the seat belt.

Further, since the seat belt retractor 4 is installed in the armrest 11 which is originally provided on the vertical wall portion of the vehicle body below the window portion so as to project into the vehicle interior,
It is not necessary to form a bulge portion dedicated to the retractor on the door panel portion 10A, and there is no fear that a rear seat occupant will be hit by a collision in an automobile, and the appearance is improved.

The second belt guide member 3A mounted on the backrest portion 25 of the driver seat (or the passenger seat) S is not limited to the endless sectional structure shown in FIG. FIG. 4 shows another embodiment,
As a matter of course, the webbing W itself may be detachable so that it can be opened and closed as shown in FIG. By doing so, the belt insertion work becomes very easy, and even if the belt is twisted during use, it can be easily removed and corrected.

[0029]

As described above, the present invention provides a shoulder belt for restraining a shoulder portion of a front seat occupant of a vehicle having a rear door, and a seat belt for holding one end of the shoulder belt in a windable and lockable manner. A seatbelt device for a front seat of an automobile, comprising: a retractor; and a first belt guide that guides a drawer portion of the shoulder belt pulled out from the seatbelt retractor, wherein the seatbelt retractor includes the seatbelt retractor. The first belt guide is fixedly installed at the upper end of the rear door vertical wall portion, and the shoulder belt is passed from the seat belt retractor through the inside of the rear door vertical wall portion to the first belt guide. It is also characterized by extending in the front seat direction It is.

That is, according to the structure of the present invention, in a vehicle having a rear door such as a four-door vehicle, a seat belt which holds one end of a shoulder belt portion for restraining the shoulder portion of an occupant at the front seat in a windable and lockable manner. The retractor is installed and fixed at a predetermined position in the rear door vertical wall portion of the vehicle, and the tip of the shoulder belt from the seat belt retractor passes through the rear door vertical wall portion, and first the first upper end side of the rear door vertical wall portion. Pulled out from the belt guide. Then, after that, it is further bent and extended at a substantially right angle in the shoulder direction of the front seat through the first belt guide, and at the time of the extension, the drawer portion of the shoulder belt part in the front seat direction is extended. It is reliably and smoothly guided by the first belt guide fixedly provided on the upper end portion of the vertical wall portion of the rear door.

Therefore, according to this structure, the seat belt hardly extends upward from the upper end of the vertical wall portion of the rear door, and the portion from the seat belt retractor to the first belt guide is completely hidden in the door. The seatbelt disappears from the seat, which not only makes it look better, but also makes it look better from inside the vehicle and expands the field of view.
The habitability in the passenger compartment is greatly improved. In addition, it is relatively easy to adopt a sufficient reinforcing structure, and it is easy to adopt the upper end of the vertical wall of the rear door. By the tension locking of the vehicle, the load bearing strength at the time of a vehicle collision can be greatly improved, and the occupant locking performance can be sufficiently enhanced. At the same time, due to the high locking performance of the seat belt, it is possible to prevent the rear door from being opened in the event of an automobile collision, and it is possible to ensure the safety of the occupant on the rear seat side.

The seat belt retractor is
Provided in a space such as a vertical wall portion of the rear door, for example, in an armrest, and the end of the shoulder belt pulled out from the seat belt retractor is pulled out to the first belt guide using a space between the door trim and the door inner panel, for example. Therefore, there is no restriction on the original space in the vertical wall of the rear door. Therefore, it can be applied to a rear door having a door lock mechanism, a window glass lifting mechanism, etc. without any problem.
In addition, it is not necessary to form a bulging portion for the retractor, which is especially used for the vertical wall portion of the vehicle interior of the rear door, and the appearance can be improved, and the rear passengers can be protected from the strike. Further, by doing so, it becomes possible to prevent the seat belt from being locked when the front seat reclines.

Further, in the case of the above structure, even if the seat belt retractor is provided on the rear door side as described above, the webbing can be freely expanded and contracted in a normal state, and the rear door itself can be freely opened and closed.

Further, in the above structure, if the shoulder portion of the front seat is provided with the second belt guide, in the above case, the proper shoulder mounting position is always set and the rear door is Even when the seat belt is opened, the seat belt shoulder portion does not come off from the shoulder portion of the front seat occupant, and the wearing feeling is good.

[Brief description of drawings]

FIG. 1 is a perspective view of a vehicle seat belt device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the device.

FIG. 3 is a cross-sectional view of an intermediate guide member in the same device.

FIG. 4 is a cross-sectional view of another embodiment of the intermediate guide member.

FIG. 5 is a cross-sectional view of another embodiment of the intermediate guide member.

[Explanation of symbols]

Reference numeral 1 is a seat belt, 2 is a wrap portion, 3A is a second belt guide member, 3B is a belt guide member of the flag 1B, 4 is a seat belt retractor, 5 is a shoulder portion, 6 is a first hook, and 7 is a first Buckle part, 8 is a second hook, 9
Is a second buckle part, 10 is a rear door, 10A is a door panel part, 11 is an armrest, and W is a webbing.

Front page continued (72) Inventor Toshio Fukutomi 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (56) References , U)

Claims (2)

[Claims] 1. A shoulder belt for restraining a shoulder portion of a front seat occupant of an automobile having a rear door, a seat belt retractor for holding one end of the shoulder belt in a windable and lockable manner, and a seat belt retractor pulled out from the seat belt retractor. In a seatbelt device for a front seat of an automobile, which comprises a first belt guide for guiding a drawer portion of a shoulder belt, the seatbelt retractor is installed and fixed in a vertical wall portion of a rear door of the automobile. The first belt guide is the rear door.
The shoulder belt is fixed to the upper end of the vertical wall.
From the seat belt retractor to the rear door vertical wall
From the first belt guide through the inside,
A seat belt device for an automobile, which is characterized in that the seat belt device is extended in the direction of the seat. Wherein the front seats, the located on the shoulder
The shoulder belt extended from the first belt guide
The vehicle seat belt device according to claim 1, further comprising a second belt guide for guiding.