JP2003165415A - Seat belt device of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reconcile improvement of appearance of a seat belt in opening a door with improvement of getting in/out properties of an occupant. <P>SOLUTION: A seat belt device of a vehicle has a seat belt 31 for constraining the occupant sitting on a seat 21. A retractor 32 for winding the seat belt 31 is disposed in a door 3 disposed openably/closably with respect to the vehicle 1, an end of the seat belt 31 extending from the retractor 32 is connected to an edge lower part of a door opening part 13 opened or closed by the door 3. A connecting part 44a of the door opening part 13 of a seat belt end to the edge lower part is slidable in the longitudinal direction of the vehicle in opening or closing the door 3, and track of sliding of the connecting part 44a is set to tilt outside in the car width direction in the plan view as the vehicle moves backward. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat belt device provided with a seat belt for restraining an occupant seated on a seat.

[0002]

2. Description of the Related Art Conventionally, as a vehicle seat belt device of the above-mentioned example, there are devices described in, for example, JP 2001-105864 A and JP 2001-138864 A. That is, in any of the above publications, the seat belt for restraining the front seat occupant in the freestyle door is provided on the rear door side. Specifically, the retractor, seat belt, shoulder anchor, tongue plate, and lap outer anchor are provided on the rear door side, and when the tongue plate is engaged with the lap inner anchor provided on the seat cushion side of the front seat, the front seat And a three-point seat belt device for a vehicle.

As described above, when the seat belt device is attached to the rear door, it is necessary to reinforce the rear door itself and the mechanism becomes complicated. Moreover, in the seat belt device having the above-mentioned conventional structure, the position of the wrap outer anchor (anchor for mounting the fixed end of the seat belt on the side opposite to the retractor) is restricted.

In other words, the lap outer anchor does not open the door unless it is located above the side sill as a rigid member of the vehicle body, and a particular problem occurs in a vehicle in which the position of the seat cushion with respect to the occupant is high, that is, the hip point. However, in vehicles with a low hip point, the position of the lap outer anchor is inevitably higher than the side sill due to the side sill, and the position of this lap outer anchor causes the seat belt to hang on the occupant from the rear. Since the abdomen of the occupant is pressed by the seat belt, the seat belt device having the conventional structure has a problem that it is difficult to apply to a vehicle having a low hip point.

[0005]

SUMMARY OF THE INVENTION According to the present invention, the position of the connecting portion is restricted by connecting the end portion of the seat belt extending from the retractor provided on the door to the lower edge of the mouth of the door opening on the vehicle body side. By setting it so as not to receive it, and moreover, the connecting portion can be slid forward and backward when the door is opened and closed, and the sliding locus can be inclined outward in the vehicle width direction as it moves backward in plan view. It is possible to improve both the appearance of the seat belt when the door is opened and the occupant's ease of getting on and off, especially because the connecting portion of the seat belt end portion moves outward in the vehicle width direction when the door is opened. (EN) Provided is a vehicle seatbelt device capable of ensuring smooth movement of the connecting portion, achieving a sufficient opening feeling of a door opening, and preventing a seatbelt from getting in the way when getting in and out of a vehicle. The target.

[0006]

A vehicle seat belt device according to the present invention is a vehicle seat belt device provided with a seat belt for restraining an occupant seated on a seat, the seat belt device being openable and closable with respect to the vehicle. A retractor for winding a seat belt is disposed on the door, and an end portion of the seat belt extending from the retractor is connected to a lower portion of a rim of a door opening opened and closed by the door, and a door opening at a seat belt end portion. The connecting portion to the lower portion of the mouth edge is slidable in the front-rear direction of the vehicle when the door is opened and closed, and the locus of sliding of the connecting portion is inclined outward in the vehicle width direction as it moves rearward in plan view. Is set.

The seat having the above structure can be set as a front seat. Further, the seat belt can be set to a seat belt for restraining a front seat occupant, and the door can be set to a rear door where the opening is allowed after the front door is opened.

According to the above construction, since the end portion of the seat belt extending from the retractor is connected to the lower edge of the door opening which is opened and closed by the door, that is, the vehicle body side, the position of the connecting portion is not restricted. Moreover, the above-mentioned connecting portion slides in the front-rear direction of the vehicle when the door is opened and closed, and its sliding locus inclines outward in the vehicle width direction as it moves rearward in a plan view. It is possible to improve both the appearance and the occupant's ease of getting on and off.

Particularly, when the door is opened, the connecting portion at the end portion of the seat belt moves outward in the vehicle width direction, so that smooth movement of the connecting portion can be ensured and the end portion of the seat belt can move outward in the vehicle width direction. By moving to, it is possible to achieve a sufficient feeling of opening the door, and the seat belt does not get in the way when getting on and off, so it is possible to improve the stepping on and off at the feet.

In one embodiment of the present invention, a guide member is provided between the seat belt and a lower portion of the rim of the door opening so as to guide the end portion of the seat belt along the inner surface of the passenger compartment. It is a thing.

The guide member having the above structure can be formed by a pipe member or a metal rod-shaped member. According to the above configuration, the guide member described above can ensure smooth movement of the connecting portion at the end portion of the seat belt.

In one embodiment of the present invention, the guide member is formed of a rod-shaped member that extends in a substantially straight line, and the guide member is attached to the vehicle body with its rear portion inclined outward in the vehicle width direction in plan view. It is a thing.

According to the above construction, since the connecting portion and the end portion of the seat belt are guided by the rod-shaped members which are inclined as described above, a wider opening feeling can be obtained when the door is opened, and the connection when the door is opened. It is possible to ensure smooth movement of the part outward in the vehicle width direction.

In one embodiment of the present invention, the guide member has a rear portion bent outward in the vehicle width direction in a plan view. According to the above configuration, since the rear portion guides the connecting portion and the seat belt end portion by the guide member bent outward in the vehicle width direction, a wider opening feeling can be obtained when the door is opened, and the connecting portion when the door is opened. It is possible to secure a smooth outward movement in the vehicle width direction.

In one embodiment of the present invention, the seat belt is extended toward the passenger compartment with an intermediate portion thereof being supported by a shoulder anchor arranged above the door. According to the above configuration, the load of the seat belt can be received on the door side via the shoulder anchor.

In one embodiment of the present invention, the door is a rear door whose rear portion is supported by the vehicle body via a hinge. According to the above configuration, when the rear door is opened and closed via the rear hinge, the belt end portion slides in the front-rear direction of the vehicle, so that the seat belt does not get in the way especially when a passenger in the rear seat gets on or off, and It is possible to improve the boarding / alighting property.

In one embodiment of the present invention, a front door is provided in front of the door, the front portion of which is supported by the vehicle body via a hinge. According to the above configuration, in a vehicle having a freestyle door structure, the feeling of opening the door opening and the ease of getting on and off at the foot when accessing the rear seat are significantly improved.

In one embodiment of the present invention, the door opening of the vehicle is formed by one continuous opening that is openably and closably covered by a front door and a rear door.

According to the above construction, the freestyle door structure is a center pillar-less structure having no center pillar, so that the door opening has a sufficient feeling of opening and one continuous opening (door opening). It can be used efficiently.

In one embodiment of the present invention, a plurality of rows of seats are arranged in front and rear in the vehicle compartment, and the seat belt is arranged at a position corresponding to a front door for a front seat occupant. Is set to. According to the above configuration, the front seat occupant can be reliably restrained by the seat belt in correspondence with the seats in the front and rear rows, so that the safety is improved.

In one embodiment of the present invention, the guide member and the rear seat overlap each other in the front-rear direction of the vehicle, and the rear portion of the guide member is arranged at a position where it does not interfere with the rear seat in plan view. . According to the above configuration, the guide member can be arranged without interfering with the rear seat, and the rear seat can be set as wide as possible.

In one embodiment of the present invention, resistance reducing means for reducing sliding resistance of the connecting portion is provided between the guide member and the connecting portion. According to the above configuration, the resistance reducing means is interposed so that the sliding of the connecting portion is further facilitated.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. The drawings show a seat belt device of a vehicle. First, a vehicle body structure and a door structure will be described with reference to FIGS.

As shown in FIGS. 1 and 4, a side door including a front door 2 and a rear door 3 is provided on the side surface of the vehicle body of the vehicle 1, and a front end portion of the front door 2 and a rear end portion of the rear door 3 are provided. And a front door hinge 4 and a rear door hinge 5 as hinge portions, respectively, are provided to form a side door having a freestyle structure.

The front door 2 and the rear door 3 which constitute these side doors are provided with door panels 6 and 7, door sashes 8 and 9 and window glasses 10 and 11, respectively, and the inside of each of the above-mentioned door panels 6 and 7 ( Specifically, a side impact bar (not shown) extending in the front-rear direction of the vehicle is provided between the door inner panel and the door outer panel.

Further, the front door 2 has a door outer handle for opening and closing the front door 2 from outside the vehicle.
A door mirror 12 (not shown) for visually recognizing the rear of the vehicle is provided.

In the free-style door of this embodiment, the front door 2 is opened preferentially, and the rear door 3 is constructed so that the opening is allowed after the front door 2 is opened.

On the side of the above-mentioned side door toward the passenger compartment, there is a door opening (a side opening of the vehicle) for the front passenger seat 13a.
And a rear seat entrance / exit 13b are formed, and the front seat entrance / exit 13a is opened and closed by the front door 2 and the rear seat entrance / exit 1
3b is opened / closed by the rear door 3, and these entrances / exits 13a, 13b are formed by a single continuous opening 13 which is openably / closably covered by both doors 2, 3 to form a center pillarless vehicle body.

As shown in FIG. 1, lock portions 14 and 15 for locking the rear door 3 between the body and the body are provided above and below the front portion of the above-mentioned rear door 3, and a front portion is provided in the middle of the front end portion of the rear door 3. A lock portion 17 that locks the striker 16 of the door 2 is provided.

On the other hand, as shown in FIGS. 2 and 4, a front seat 21 is attached to the floor panel 18 via brackets 19 and 19 and a seat slide device 20. As shown in FIG. 3, the front seat 21 includes a seat cushion 22, a seat back 23, and a headrest 24, and a buckle 25 is provided on the front seat 21 on the tunnel portion 18a side of the seat cushion 22. 25 is fixed to the seat cushion side via a floor panel 18 via a bracket 26 or a stalk.

A kick-up portion 27 is formed integrally or integrally with the rear portion of the floor panel 18 described above, and a seat cushion 28C of a rear seat 28 is attached to the top deck surface (upper surface) of the kick-up portion 27. . That is, as shown in FIG. 3, a plurality of rows of seats 21 and 28 are arranged in the front and rear of the vehicle interior 30 of the vehicle 1. here,
The rear seat 28 described above includes a seat cushion 28C, a seat back 28B, and a headrest 28H.

FIG. 2 is a partial front view showing the front seat 21 and the closed rear door 3, and FIG. 5 is a partial front view showing the rear door 3 in an open state. A seat belt 31 for restraining a front passenger is provided.

The seat belt 31 has a rigidity equal to that of the center pillar of the rear door 3, and the door front structure 3 has the same rigidity.
It is configured to be wound up by a retractor 32 arranged in a.

A door trim 34 having an armrest 33 is integrally provided in a lower half of the rear door 3 on the vehicle interior side, while a front seat 21 is provided on an upper portion of the door front structure 3a on the vehicle interior side. The shoulder anchor 35 is attached so as to correspond to the position of the headrest 24.

The seat belt 31 fed from the retractor 32 is provided with the upper end portion 34a of the door trim 34.
After being led out of the door front structure 3a into the vehicle compartment, the shoulder anchor 35 supports the middle portion thereof and extends toward the vehicle compartment 30 side.

A tongue member 36 is movably provided at an extending intermediate portion of the seat belt 31, and an extending end portion of the seat belt 31, that is, a lower end portion of the seat belt is a door as shown in FIGS. It is slidably connected to the lower portion of the mouth edge of the opening 13 in the front-rear direction. Hereinafter, the sliding structure of the lower end portion of the seat belt 31 will be described in detail.

As shown in FIG. 6, a side sill inner section 37 and a side sill outer 38 are provided on both left and right sides of the floor panel 18 (however, only one is shown in FIG. 6), and the side sill closed cross section extends in the front-rear direction of the vehicle. A side sill 40 as a vehicle body rigid member having 39 is arranged, and a slide means 41 is attached to the side sill inner 37 of the side sill 40.
The guide member 42 constituting the above is fixed by using a mounting member such as a bolt 43.

The sliding means 41 is a seat belt 31.
And a side sill inner 37 as a lower edge of the door opening 13, and a lower end portion of the seat belt 31 is moved back and forth along a side surface of the vehicle interior side when the rear door 3 is opened and closed, that is, a surface of the side sill inner 37 on the vehicle interior side. For sliding guide in the direction, and this slide means 41 includes the above-mentioned guide member 42,
A slider 44 that can be moved back and forth along the guide member 42.
The seat belt 31 is formed on the belt mounting portion 44a formed integrally or integrally with the slider 44.
The lower end of is firmly fixed.

In this embodiment shown in FIG. 6, the guide member 42 is composed of a metal round pipe or a metal round bar, and the bent end portion of the rear portion of the guide member 42 is processed into a flat shape and attached. The seat is integrally formed, and the mounting seat is bolted up to the floor panel 18 by the bolt 43 described above. In addition, a bracket 29 is provided at the front of the guide member 42.
And the mounting seat of the bracket 29 is bolted up to the sill inner 37 again by the above-mentioned bolt 43.

Further, the slider 44 is made of a metal round pipe so as to move back and forth along the outer circumference of the straight portion of the guide member 42, and the belt attaching portion 44a is formed by a projecting piece joined to the round pipe. Are configured.

Moreover, as shown in the plan view of FIG. 3, the above-mentioned guide member 42 is formed of a rod-shaped member extending in a substantially straight line, and the rear portion of the guide member 42 in the plan view is outward in the vehicle width direction. It is attached to the car body side with a tilt,
The sliding locus of the belt mounting portion 44a corresponding to the connecting portion of the end portion of the seat belt 31 to the lower portion of the mouth edge of the door opening 13 and the slider 44 inclines outward in the vehicle width direction as it moves rearward in plan view. Is set.

The guide member 42 and the seat cushion 28C of the rear seat 28 overlap in the front-rear direction of the vehicle as shown in FIG. 3, and the guide member 42 is located at a position where it does not interfere with the rear seat 28 in a plan view. It is arranged.

As shown by the phantom line α in FIG. 4, the rear door 3
When the seat belt is closed, the seat belt 31, the shoulder anchor 35, and the tongue member 36 are positioned to face the seat back 23 of the front seat 21, and the seat belt 31 is pulled by the front seat occupant when the seat belt 31 is worn. The lower end portion of the seat belt fixed to the slider 44 moves to the front position along the guide member 42 as close to the front seat 21 as possible.

Therefore, when the locking metal fitting at the tip of the tongue member 36 is engaged with the buckle 25, the front occupant seated on the front seat 21 can be restrained by the three-point seat belt structure as shown in FIG. it can.

On the other hand, when the front occupant removes the seat belt 31 and opens the rear door 3 after opening the front door 2, the opening force of the rear door 3 causes the seat belt 31 to open.
Is pulled rearward of the vehicle, the lower end portion of the seat belt fixed to the slider 44 moves rearward along the guide member 42 as shown by the solid line in FIG. As is clear from the above, since the vehicle sequentially moves outward in the vehicle width direction, when the passenger in the rear seat gets off, the space under his / her feet is not obstructed. The same applies to this point when riding.

In the figure, 45 is a scarf plate made of synthetic resin, 46 is a roof panel, 47 is a roof rail, 48 is a roof rail outer, and 49 is a roof rail inner.

As described above, the vehicle seat belt device of the embodiment shown in FIGS. 1 to 6 is a vehicle seat belt device provided with the seat belt 31 for restraining the occupant seated on the seat 21. 1, a retractor 32 that winds the seat belt 31 is disposed on a door (see rear door 3) that is openable and closable, and an end portion of the seat belt 31 extending from the retractor 32 is connected to the door (see rear door 3).
Is connected to the lower edge of the door opening 13 that is opened and closed by the door opening 13 and the connecting portion of the end of the seat belt 31 to the lower edge of the door opening 13 (see the belt mounting portion 44a) is connected to the door (see the rear door 3). When the vehicle is opened or closed, the vehicle 1 can be slid in the front-rear direction, and the locus of sliding of the connecting portion is set to incline outward in the vehicle width direction as it moves rearward in a plan view.

According to this structure, the end portion of the seat belt 31 extending from the retractor 32 is connected to the lower edge of the door opening 13 which is opened and closed by the door (see the rear door 3), that is, the vehicle body side. Belt mounting part 44a
The position of (see) is not restricted. Moreover, the above-mentioned connecting portion
(Belt attachment portion 44a) slides in the front-rear direction of the vehicle when the door is opened and closed, and its sliding locus inclines outward in the vehicle width direction as it moves rearward in plan view.
It is possible to improve both the appearance of the seat belt when the door is opened and the occupant's ease of getting on and off.

Particularly, when the door is opened, the seat belt 3
Since the connecting portion at one end (see the belt mounting portion 44a) moves outward in the vehicle width direction, smooth movement of the connecting portion can be ensured and the end portion of the seat belt 31 moves outward in the vehicle width direction. By doing so, a sufficient feeling of opening the door opening 13 can be achieved, and the seat belt 31 does not get in the way at the time of getting on and off, so that it is possible to improve the stepping on and off at the feet.

A guide member 42 is provided between the seat belt 31 and the lower edge of the door opening 13 to guide the end of the seat belt 31 along the inner surface of the door (see the rear door 3). It has been done.

According to this structure, the guide member 42 described above is used.
Thus, the smooth movement of the connecting portion (see the belt attaching portion 44a) at the end portion of the seat belt 31 can be ensured.

Further, the guide member 42 is formed of a rod-shaped member extending in a substantially straight line, and the guide member 42 is mounted on the vehicle body side with its rear portion inclined outward in the vehicle width direction in plan view.

According to this structure, the connecting portion (see the belt mounting portion 44a) and the end portion of the seat belt 31 are guided by the rod-shaped members (see the guide member 42) which are inclined as described above. A wider opening feeling can be obtained, and smooth movement of the connecting portion outward in the vehicle width direction can be ensured when the door is opened.

In addition, the seat belt 31 is extended toward the passenger compartment 30 with its intermediate portion supported by a shoulder anchor 35 arranged above the door (see the rear door 3). According to this structure, the load of the seat belt 31 is transmitted through the shoulder anchor 35 to the door (see the rear door 3).
Can be received by the side.

The rear portion of the door is set to the rear door 3 supported by the vehicle body through a hinge (see rear door hinge 5). According to this configuration, when the rear door 3 is opened and closed via the rear hinge 5, the end portion of the belt 31 slides in the front-rear direction of the vehicle, so that the seat belt 31 is an obstacle especially when a passenger in the rear seat gets in or out of the vehicle. As a result, it is possible to improve the getting on / off property at the feet.

Further, in front of the door (see rear door 3), there is provided a front door 2 whose front portion is supported by the vehicle body through a hinge (see front door hinge 4). With this configuration, in the vehicle having the freestyle door structure, the feeling of opening the door opening 13 and the ease of getting on and off at the foot when accessing the rear seat are significantly improved.

In addition, the door opening 13 of the vehicle 1 is
It is formed by one continuous opening that is openably and closably covered by the front door 2 and the rear door 3.

According to this structure, a freestyle door structure and a center pillar-less structure without a center pillar are provided, so that the door opening 13 has a sufficient feeling of opening and one continuous opening (door opening 13). ) Can be used efficiently.

A plurality of rows of seats 21 and 28 are arranged in the front and rear in the vehicle compartment 30, and the seat belt 31 is arranged at a position corresponding to the front door 2 for the front seat 21 and passengers. It is set on the belt 31. According to this configuration, the front and rear rows of the seats 21 and 2 are arranged.
Corresponding to No. 8, since the front seat occupant can be surely restrained by the seat belt 31, the safety is improved.

Moreover, the guide member 42 and the rear seat 28 overlap in the front-rear direction of the vehicle 1, and the rear portion of the guide member 42 is arranged at a position where it does not interfere with the rear seat 28 in a plan view. With this configuration, the guide member 42 can be arranged on the rear seat 28 without interfering with each other, and the rear seat 28 can be set as wide as possible.

FIG. 7 shows another embodiment of the slide means 41. In this embodiment, the guide member 42 and the outer cylinder 5 are used.
0, a cage 51, a large number of steel balls 52, and a slider 44 made of a ball bush having a retaining ring 53 constitute the above-mentioned sliding means 41, which is integrally or integrally attached to the outer cylinder 50 of the ball bush. The lower end of the seat belt 31 is fixed to the belt mounting portion 44a.

With this structure, when the slider 44 slides in the front-rear direction when the rear door 3 is opened and closed, the sliding resistance of the slider 44 can be greatly reduced, so that the lower end of the seat belt 31 slides. Has the effect of making it even more reliable and smooth. It should be noted that stop members such as E-rings, retaining rings, or stopper pins may be provided on both front and rear ends of the guide member 42, if necessary.

In short, in the embodiment shown in FIG. 7, between the guide member 42 and the connecting portion (refer to the belt mounting portion 44a), a resistance reducing means (a slider made of a ball bush) for reducing sliding resistance of the connecting portion is provided. (See 44). According to this structure, the sliding of the connecting portion is further facilitated by interposing the resistance reducing means (see the slider 44 made of ball bush).

FIG. 8 shows another embodiment of the guide member mounting structure. In the previous embodiment shown in FIG. 3, the front portion of the guide member 42 is mounted on the side sill inner 37 via the bracket 29, and the guide member 42 is mounted. The rear portion is bent downward and attached to the floor panel 18, but in this embodiment shown in FIG. 8, a bent portion for attaching the member 42 that is directed outward in the vehicle width direction is attached to both front and rear portions of the guide member 42. Forming a seat and
Both of the mounting seats are attached to the side sill inner 37 using bolts 43.

Even if configured in this manner, the other configurations, operations, and effects are the same as those of the previous embodiment.
In the figure, the same parts as those in the previous figure are designated by the same reference numerals, and detailed description thereof will be omitted.

9, 10 and 11 show another embodiment of the vehicle seat belt device, in which the seat belt end portion of the rear door 3 is provided between the seat belt 31 and the lower edge of the door opening 13. A guide member 42 for guiding along the side surface of the vehicle interior is provided.

In this embodiment, as shown in a plan view in FIG. 9, the above-mentioned guide member 42 has a rear portion bent outward in the vehicle width direction in a plan view. That is, the above-mentioned guide member 42 has a straight line portion 42a that linearly extends in the front-rear direction, and a bent portion 42b that is integrally formed at the rear portion of the straight line portion 42a via a rounded portion and is bent outward in the vehicle width direction. The sliding locus of the slider 44 and the belt mounting portion 44a as the connecting portion is set to incline outward in the vehicle width direction as it moves rearward in plan view.

Further, since there is a rounded portion between the straight portion 42a and the bent portion 42b, the length of the ball brush slider 44 shown in FIGS. 10 and 11 in the front-rear direction is set as short as possible. ing.

Further, the guide member 42 and the seat cushion 28C of the rear seat 28 overlap in the front-rear direction of the vehicle, and the rear portion of the guide member 42 does not interfere with the rear seat 28 in a plan view as shown in FIG. It is arranged in the same position as in the previous embodiment.

With this configuration, the guide member 42 whose rear portion is bent outward in the vehicle width direction guides the belt attaching portion 44a as the connecting portion and the end portion of the seat belt 31. A wide open feeling can be obtained, and smooth movement of the belt attachment portion 44a outward in the vehicle width direction can be ensured when the rear door 3 is opened.

In this embodiment shown in FIGS. 9, 10 and 11, the other structures, functions and effects are almost the same as those of the previous embodiment. Therefore, in FIG. 9, FIG. 10 and FIG. The same reference numerals are given to the same portions as, and detailed description thereof will be omitted.

In the correspondence between the structure of the present invention and the above-described embodiment, the occupant's seat restrained by the seat belt of the present invention corresponds to the front seat 21, and so on. Corresponds to the rear door 3, and the connecting portion of the end portion of the seat belt is the belt attaching portion 44.
The hinge corresponding to a and supporting the rear door corresponds to the rear door hinge 5, the hinge supporting the front door corresponds to the front door hinge 4, and the resistance reducing means corresponds to the slider 44 made of a ball bush. This invention
It is not limited to the configuration of the above embodiment.

[0073]

According to the present invention, since the end portion of the seat belt extending from the retractor provided on the door is connected to the lower portion of the rim of the door opening on the vehicle body side, the position of the connecting portion is restricted. In addition, since the connecting portion is slidable in the front-rear direction when the door is opened and closed, and the sliding locus is set to incline outward as the vehicle moves rearward in plan view, the door is opened. It is possible to improve both the appearance of the seat belt and the occupant's ease of getting on and off. Especially, when the door is opened, the connecting portion of the seat belt end portion moves outward in the vehicle width direction. The smooth movement can be ensured, a sufficient opening feeling of the door can be achieved, and the seat belt does not get in the way when getting on and off the vehicle.

[Brief description of drawings]

FIG. 1 is a side view of a vehicle including a seat belt device of the present invention.

FIG. 2 is a front view of the main part when the door is closed.

FIG. 3 is a plan view of an essential part showing the arrangement structure of a guide member.

FIG. 4 is an explanatory view showing the movement of the seat belt when the rear door is opened.

FIG. 5 is a front view of the main part when the rear door is opened.

FIG. 6 is a perspective view showing a configuration of a slide unit.

FIG. 7 is a sectional view showing another embodiment of the sliding means.

FIG. 8 is a plan view showing another embodiment of the vehicle seat belt device.

FIG. 9 is a plan view showing still another embodiment of the vehicle seat belt device.

FIG. 10 is a perspective view showing the structure of a sliding means.

FIG. 11 is a cross-sectional view of a ball bush slider.

[Explanation of symbols]

2 ... Front door 3 ... Rear door 4, 5 ... Hinge 13 ... Door opening 21 ... Front seat 28 ... Rear seat 30 ... Vehicle compartment 31 ... Seat belt 32 ... Retractor 35 ... Shoulder Anka 42 ... Guide member 44 ... slider 44a ... Belt mounting part (connecting part)

Claims (11)

[Claims] 1. A seatbelt device for a vehicle, comprising a seatbelt for restraining an occupant seated on a seat, wherein a retractor for winding the seatbelt is arranged on a door which is openable and closable with respect to the vehicle. Connecting the end of the seat belt extending from the retractor to the lower edge of the door opening that is opened and closed by the door, and opening and closing the door to connect the end of the seat belt to the lower edge of the door opening. A seat belt device for a vehicle, which is sometimes slidable in the front-rear direction of the vehicle and is set such that a locus of sliding of the connecting portion inclines outward in the vehicle width direction as it moves rearward in a plan view. 2. The vehicle according to claim 1, further comprising a guide member provided between the seat belt and a lower portion of a rim of the door opening portion for guiding the end portion of the seat belt along a side surface of the door in the passenger compartment. Seat belt device. 3. The guide member is formed of a rod-shaped member extending substantially linearly, and the guide member is attached to the vehicle body with its rear portion inclined outward in the vehicle width direction in plan view.
The vehicle seat belt device described. 4. The vehicle seat belt device according to claim 2, wherein the guide member has a rear portion bent outward in the vehicle width direction in a plan view. 5. The vehicle seat according to claim 1, wherein the seat belt is extended toward the passenger compartment with an intermediate portion thereof being supported by a shoulder anchor arranged above the door. Seat belt device. 6. The door is a rear door whose rear portion is supported by a vehicle body via a hinge.
4. The vehicle seat belt device according to 4 or 5. 7. A vehicle seat belt device according to claim 6, further comprising a front door whose front portion is supported by the vehicle body in front of the door through a hinge. 8. The vehicle seat belt device according to claim 7, wherein the door opening of the vehicle is formed by one continuous opening that is openably and closably covered by a front door and a rear door. 9. A plurality of rows of seats are arranged in front and rear in the passenger compartment, and the seat belt is set to a front seat occupant seat belt arranged at a position corresponding to a front door. , 7 or 8 seat belt device for a vehicle. 10. The guide member and the rear seat overlap each other in the front-rear direction of the vehicle, and the rear portion of the guide member is arranged at a position where it does not interfere with the rear seat in a plan view. A vehicle seat belt device according to 6, 7, 8 or 9. 11. A resistance reducing means for reducing sliding resistance of the connecting portion is interposed between the guide member and the connecting portion. Alternatively, the vehicle seat belt device according to item 10.