JP5077417B2 - Vehicle seat belt structure - Google Patents

Description

  The present invention relates to a vehicle seat belt structure including, for example, a door having a double door structure.

  Conventionally, a door with a double door structure as described in Patent Document 1 is known. This conventional structure is provided with a lock pillar extending in the vertical direction of the vehicle body at an intermediate portion of the rear opening, and the rear opening is opened and closed by a left door and a right door of a double door structure.

This structure can be applied to a double door structure of a front door and a rear door that opens and closes a passenger entrance on the side of the vehicle.
Therefore, when the above structure is applied to a double door that opens and closes the entrance / exit of the vehicle, if there is a center pillar extending in the vertical direction of the vehicle body at the middle part of the entrance / exit, there is an advantage that the vehicle body rigidity can be ensured, but sufficient opening is achieved. Since a feeling cannot be obtained, a center pillar-less structure can be considered to ensure a feeling of opening.

  When a door with a double door structure and a center pillar-less vehicle is configured in this way, if the seat belt for the front seat occupant seated on the front seat extends from the rear door to the vehicle interior, the seat belt is opened when the rear door is opened. Since the extended portion of the vehicle is stretched between the front part of the rear door and the lower part of the door opening on the vehicle body side, there is a problem that the seat belt becomes an obstacle when the passenger in the rear seat gets on and off.

On the other hand, there is a seat belt structure described in Patent Document 2 in which a seat belt for a front passenger is led out to the front seat side through the inside of the rear door.
The front door and rear door in this seatbelt structure are not double doors, and the above-mentioned rear door opens and closes with its front part as a fulcrum, and the position of the seatbelt is close to the hinge center of the rear door, so the rear door is opened Even if this does not cause any problem, when this seat belt structure is applied to a door having a double door structure, the same problem as described above occurs.

JP-A-8-14280 JP-A-63-130450

The present invention can improve both the appearance of the seat belt when the door is opened and the passenger's ability to get on and off, and particularly in a center pillar-less vehicle, the feeling of opening the door opening and the rear seat. It is an object of the present invention to provide a vehicle seat belt structure capable of improving the step-in / out performance at the time of access.

In the seat belt structure for a vehicle according to the present invention, a seat is provided in a vehicle interior of the vehicle, and a door opening that opens to the outside of the vehicle is provided on a side surface of the vehicle body on the side of the seat, and a door that opens and closes the door opening. A vehicle seat belt structure provided with a seat belt for restraining an occupant seated on the seat, wherein a retractor that winds the seat belt around the door is disposed, and the door is operated in response to an opening operation. has a site where the vehicle longitudinal position is displaced rearwardly, the site where the vehicle longitudinal position in response to opening operation of the door is displaced to the rear, shoulder anchor for supporting the middle portion of the seat belt is provided The seat belt has an intermediate portion supported by the shoulder anchor and extends toward the passenger compartment side. The seat belt has a lower portion of the door on the door opening side in the vehicle width direction of the seat. By entailment the seat belt is pulled in formation operation,
Slide means for slidably guided in the vehicle longitudinal direction along the seat belt end portion in the vehicle compartment side surface in which is provided.

The seat having the above configuration can be set as a front seat. Further, the seat belt can be set in the seat belt front-seat occupant restraint, further the door can be set to the rear door of the place where the open after the front door is opened is allowed.

  According to the above configuration, when the door is opened and closed, the seat belt end slides in the front-rear direction on the lower side of the lip of the door opening. In particular, in a center pillar-less vehicle, it is possible to improve the feeling of opening the door opening and the ease of getting on and off the foot when accessing the rear seat.

  Further, since the belt belt is provided with sliding means for slidingly guiding the belt end along the side of the vehicle interior between the seat belt and the lower edge of the door opening, the end of the seat belt is When the door is opened and closed, the sliding means guides sliding along the side surface of the vehicle interior, so that the lower end portion of the seat belt is reliably slid.

  Further, since the seat belt is constructed so that the middle portion thereof is supported by the shoulder anchor provided on the door and extends toward the passenger compartment side, the seat belt is supported by the shoulder anchor, and three points are provided. An occupant can be protected by a seat belt structure.

In one embodiment of the present invention, the lower edge of the door opening has a side sill joined to the vehicle width direction outer side of the floor panel of the passenger compartment and protrudes upward from the floor panel, and the sliding means includes A guide member that is fixed to the vehicle body and supports the end portion of the seat belt so as to be slidable in the front-rear direction, the guide member being lower than the upper end of the portion of the side sill that protrudes higher than the floor panel Is provided.
According to the above configuration, the occupant's feet are not easily caught by the guide member of the sliding means, and the anchor point of the seat belt can be lowered without lowering the side sill. The seating position can be lowered while maintaining the height, so that the running stability and aerodynamic characteristics can be improved.

According to another embodiment of the present invention, the sliding means is fixed to the vehicle body includes a guide member for supporting movably backward direction sliding an end portion of the seat belt, the guide member, the closed position of the door Between the vehicle body corresponding to the shoulder anchor closed position and the vehicle body corresponding to the shoulder anchor open position in the door open position.
According to the said structure, a seatbelt edge part can be efficiently slid by door opening force.

In one embodiment of the present invention, the guide member is provided on the inner side in the vehicle width direction than the side surface of the side sill in the vehicle interior, and the vehicle is provided at a portion of the door where the shoulder anchor is provided in accordance with the opening operation of the door. It is displaced outward in the width direction.
According to the said structure, it becomes a still more preferable structure.

In one embodiment of the present invention, the door has a rear portion set to a rear door supported by the vehicle body via a hinge, and the shoulder anchor is provided at the front portion of the door in the closed position.
According to the above configuration, when the rear door is opened and closed via the rear hinge, the belt end slides in the front-rear direction of the vehicle. It is possible to improve boarding / exiting performance.

In one embodiment of the present invention, a front door having a front portion supported by the vehicle body via a hinge is provided in front of the rear door.
According to the above configuration, the rear door and the front door have a double door structure, and in this case, a larger door opening can be used efficiently.

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 configuration, the structure is a double door structure and a center pillar-less structure having no center pillar, so that a sufficient opening feeling of the door opening and efficient use of one continuous opening (door opening) are possible. Become.

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

In one embodiment of the present invention, the slide means includes a guide member fixed to the vehicle body side, and a slider that moves back and forth along the guide member, and the guide member includes a vehicle body corresponding to the rear door closed position; It is arranged in an inclined manner between the vehicle body corresponding to the rear door open position.
According to the above configuration, the lower end portion of the seat belt is guided by the inclined guide member and the slider when the rear door is opened and moves further rearward, so that it is possible to greatly improve the getting on / off performance with respect to the rear seat.

  According to the present invention, it is possible to achieve both improvement in the appearance of the seat belt when the door is opened and improvement in passenger occupancy, and in particular, in a center pillar-less vehicle, the feeling of opening of the door opening and the rear seat There is an effect that it is possible to improve the ease of getting on and off at the time of access to the vehicle.

The side view of the vehicle provided with the seatbelt structure of this invention. The front view of the principal part at the time of a door closing. Explanatory drawing which shows the movement of the seatbelt at the time of rear door opening. The front view of the principal part at the time of rear door opening. The perspective view which shows the structure of a slide means. Sectional drawing which shows the other Example of a sliding means. The side view of the vehicle provided with the seatbelt structure of this invention. Explanatory drawing which shows the movement of the seatbelt at the time of rear door opening. The front view of the principal part at the time of rear door opening. The perspective view which shows the inclination arrangement | positioning structure of a slide means.

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawings show a seat belt structure 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 3, a side door composed of a front door 2 and a rear door 3 is provided on the vehicle body side surface 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. The front door hinge 4 and the rear door hinge 5 are provided as hinge portions, respectively, to form a side door having a double door structure.

  The front door 2 and the rear door 3 constituting these side doors are respectively provided with door panels 6, 7, door sashes 8, 9 and window glasses 10, 11. Side impact bars (not shown) extending in the front-rear direction of the vehicle are provided between the door inner panel and the door outer panel.

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

  The door of the double door structure of this embodiment is configured such that the front door 2 is opened preferentially, and the rear door 3 is allowed to open after the front door 2 is opened.

The vehicle interior side in the above-mentioned side door, the door opening 13a for the front seat of a door opening (side opening of the vehicle), and the entrance 13b of the rear seat is formed, entrance for front seat 13 a is opened and closed by the front door 2, and the entrance 13 b for the rear seat is opened and closed by the rear door 3, and these entrances 13 a and 13 b are one continuous opening that is freely opened and closed by the doors 2 and 3. 13 is formed by, the body of Sen Tapi Raresu is constructed.

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

On the other hand, as shown in FIGS. 2 and 3, a front seat 21 is attached to the floor panel 18 via brackets 19 and 19 and a seat slide device 20.
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 tunnel portion 18 a side of the seat cushion 22 in the front seat 21, and the buckle 25 is interposed via a bracket 26. And fixed to the seat cushion side via the floor panel 18 or 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 29 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.

  FIG. 2 is a partial front view showing the above-described front seat 21 and the closed rear door 3, and FIG. 4 is a partial front view showing the rear door 3 in an opened state, and a front seat occupant seated on the front seat 21. A seat belt 31 is provided.

  The seat belt 31 is configured to be wound up by a retractor 32 disposed in a door front structure 3a having rigidity equivalent to that of a center pillar in the rear door 3.

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

  The seat belt 31 fed out from the retractor 32 is led out from the upper end of the door trim 34 to the vehicle interior of the door front structure 3a, and then supported by the shoulder anchor 35 at the intermediate portion thereof. It is comprised so that it may extend to the side.

The extending intermediate portion of the seat belt 31, with the tongue member 36 is movable, extended end portion of the seat belt 31, i.e., the seat belt lower end, as shown in FIG. 3, the door opening 13 is connected to the lower portion of the mouth edge so as to be slidable in the front-rear direction.
Hereinafter, the longitudinal sliding structure of the lower end portion of the seat belt 31 will be described in detail.

As shown in FIG. 5 , the side sill closed section 39 having a side sill inner 37 and a side sill outer 38 and extending in the front-rear direction of the vehicle is provided on the left and right sides of the floor panel 18 (only one is shown in the drawing). A side sill 40 as a vehicle body rigid member is provided, and a guide member 42 constituting a sliding means 41 is fixed to a side sill inner 37 of the side sill 40 by using an attachment member such as a bolt 43.

The sliding means 41 is provided between the seat belt 31 and a side sill inner 37 as a lower edge of the door opening 13, and the lower end portion of the seat belt 31 is located on the side of the vehicle interior when the rear door 3 is opened, that is, the side sill inner 37. The sliding means 41 is composed of the above-described guide member 42 and a slider 44 that can move back and forth along the guide member 42. the belt mounting portion 44a which is formed integrally or integrally to the slider 44, the lower end portion of the seat belt 31 is firmly fixed.

In this embodiment shown in FIG. 5, the above-described guide member 42 is formed of a metal round pipe, and the bent end portion of the round pipe is processed into a flat shape so that a mounting seat is integrally formed . The side sill inner 37 is bolted up by the bolt 43 described above.

  The slider 44 is formed of a metal round pipe so as to move back and forth along the outer periphery of the straight portion of the guide member 42, and the above-described belt mounting portion 44a is configured by a projecting piece joined to the round pipe. ing.

As shown by an imaginary line α in FIG. 3, when the rear door 3 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 attached. Since the seat belt 31 is sometimes pulled by the front seat occupant, the lower end portion of the seat belt fixed to the slider 44 moves along the guide member 42 to a front position as close as possible to the front seat 21.

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

  On the other hand, when the front seat occupant removes the seat belt 31 and opens the rear door 3 after the front door 2 is opened, the seat belt 31 is pulled rearward by the opening force of the rear door 3, so that the seat fixed to the slider 44 As shown by a solid line in FIG. 3, the belt lower end portion moves rearward along the guide member 42 and does not impede the foot space when the rear seat occupant gets off. The same applies to the time of boarding.

  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 structure of the embodiment shown in FIGS. 1 to 5 is a vehicle seat belt structure provided with the seat belt 31 for restraining an occupant seated on the seat 21, and can be freely opened and closed to the vehicle. A retractor 32 that winds up the seat belt 31 is disposed on the provided door 3, and an end of the seat belt 31 extending from the retractor 32 is connected to a lower edge of the door opening 13 that is opened and closed by the door 3. The end of the belt 31 is slidable in the front-rear direction when the door 3 is opened and closed.

According to this configuration, the end of the seat belt 31 slides in the front-rear direction on the lower side of the lip of the door opening 13 when the door 3 is opened and closed, so that the appearance of the seat belt 31 when the door 3 is opened is improved. And, in particular, in a center pillarless vehicle, it is possible to improve the feeling of opening of the door opening 13 and the ease of getting on and off the feet when accessing the rear seat. .

  Further, a sliding means 41 is provided between the seat belt 31 and the lower edge of the door opening 13 to slide and guide the end of the seat belt 31 along the side of the passenger compartment.

According to this configuration, the end portion of the seat belt 31 is slidably guided along the side of the vehicle interior by the slide means 41 when the door 3 is opened and closed, so that sliding of the lower end portion of the seat belt 31 is ensured. .

Further, the seat belt 31 is configured such that an intermediate portion thereof is supported by a shoulder anchor 35 provided at an upper portion of the door 3 and extends toward the passenger compartment 30 side.
According to this configuration, the support of the seat belt 31 is stabilized by the shoulder anchor 35 and the occupant can be protected by the three-point seat belt structure.

In addition, the door 3 has a rear portion set to a rear door supported by the vehicle body via a hinge (see the rear door hinge 5).
According to this configuration, when the rear door 3 opens and closes via the rear hinge 5, the end portion of the seat belt 31 slides in the front-rear direction of the vehicle 1, so that the seat belt 31 particularly when the rear seat passenger gets on and off. Can get in and out of your feet.

Further, a front door 2 is provided in front of the rear door 3 such that a front portion thereof is supported by the vehicle body via a hinge (see the front door hinge 4).
According to this configuration, the rear door 3 and the front door 2 have a double door structure, and in this case, the larger door opening 13 can be used efficiently.

Further, the door opening 13 of the vehicle 1 is formed by a single continuous opening 13 that is openably and closably covered by the front door 2 and the rear door 3.
According to this configuration, a double door structure and a center pillar-less structure having no center pillar are provided, so that a sufficient opening feeling of the door opening 13 and efficient use of one continuous opening (door opening 13) can be achieved. It becomes possible.

In addition, a plurality of rows of seats (see the front seat 21 and the rear seat 28) are arranged in the front and rear of the vehicle compartment 30 of the vehicle 1, and the seat belt 31 is arranged at a position corresponding to the front door 2. It is set for 21 passengers.
According to this configuration, since the front seat occupant can be reliably restrained by the seat belt 31 in particular, corresponding to a plurality of front and rear rows of seats, safety is improved.

Figure 6 shows another embodiment of the sliding means 41, in this embodiment, a solid round bar made of the guide member 42 in having a straight portion of predetermined length, the outer cylinder 50, retainer 51, a number of steel balls 52, and constitute the sliding means 41 described above in the slider 44 of balls bushing having a stop ring 53, the seat belt 31 in the belt mounting portion 44a mounted integrally or integrally with the outer cylinder 50 of the ball bushing The lower end of the is fixed.

According to this structure, when the sliding in the front-rear direction of the companion cormorants slider 44 to open and close the rear door 3, it is possible to achieve a significant reduction of the sliding resistance, more sliding of the lower end of the seat belt 31 There is an effect that becomes more reliable and smooth. In addition, you may provide the stop member by an E ring, a retaining ring, or a stopper pin in the front-and-rear both ends of the above-mentioned guide member 42 as needed.

  7 to 10 show another embodiment of a vehicle seat belt structure. In this embodiment shown in FIGS. 7 to 10, the side sill inner 37 as a vehicle body corresponding to the closed position of the rear door 3 (particularly, the closed position of the door front structure 3a), and the opening of the rear door 3 are shown. Between the top deck surface of the kick-up portion 27 as the vehicle body corresponding to the position, it is disposed so as to incline in the front-rear and rear-height so that the slider 44 can slide in the front-rear direction on the straight portion of the guide member 42. It is what was attached.

With this configuration, the seat belt 31 under the closed state of the rear door 3 indicated by the phantom line α in FIG. 8 is shown as a solid line when the rear door 3 is opened after the front door 2 is opened. The slider 44 and the lower end of the seat belt 31 are pulled rearward along the inclined guide member 42, so that the slider 44 moves rearward to the upper surface of the kick-up portion 27 on the side of the seat cushion 29 in the rear seat 28, Since the vehicle moves further rearward than the embodiment shown in FIGS. 1 to 5, when the rear seat occupant gets on and off, the foot space is not hindered.

Thus, in the vehicle seat belt structure of the embodiment shown in FIGS. 7 to 10, the guide member 42 in which the slide means 41 is fixed to the vehicle body side, and the slider 44 that moves back and forth along the guide member 42, The guide member 42 includes a vehicle body corresponding to the closed position of the rear door 3 (see the side surface of the side sill inner 37), and a vehicle body corresponding to the open position of the rear door 3 (see the upper surface of the kick-up portion 27). Are arranged in an inclined manner.
According to this configuration, the lower end portion of the seat belt 31 is guided by the inclined guide member 42 and the slider 44 when the rear door 3 is opened, and moves further rearward. Can be planned.

  In addition, in this embodiment shown in FIGS. 7 to 10, since other configurations, operations, and effects are the same as those in the previous embodiment, the same parts in FIGS. Although the reference numerals are attached and detailed description thereof is omitted, it is needless to say that the configuration of FIG. 6 may be adopted for the slide means 41 of FIGS.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The seat belt of the present invention corresponds to the seat belt 31 that restrains the front seat occupant of the embodiment,
Similarly,
The door provided with the retractor corresponds to the rear door 3,
The plurality of rows of seats corresponds to the plurality of rows of seats including the front seat 21 and the rear seat 28.
The present invention is not limited to the configuration of the above-described embodiment.

2 ... Front door 3 ... Rear door (door)
4, 5 ... Hinge 13 ... Door opening 18 ... Floor panel 21 ... Front seat (seat)
DESCRIPTION OF SYMBOLS 28 ... Rear seat 30 ... Vehicle compartment 31 ... Seat belt 32 ... Retractor 35 ... Shoulder anchor 40 ... Side sill 41 ... Slide means 42 ... Guide member 44 ... Slider

Claims (9)

A seat is provided in the vehicle interior of the vehicle, and a door opening that opens to the outside of the vehicle is provided on the side of the vehicle body on the side of the seat, and a door that opens and closes the door opening is provided.
A vehicle seat belt structure including a seat belt for restraining an occupant seated on the seat,
A retractor for winding the seat belt around the door;
The door has a portion where the position in the vehicle front-rear direction is displaced rearward according to the opening operation,
A shoulder anchor that supports an intermediate portion of the seat belt is provided at a position where the position in the vehicle front-rear direction is displaced rearward according to the opening operation of the door,
The seat belt has an intermediate portion supported by the shoulder anchor and extends toward the passenger compartment side.
The bottom of the door opening side in the vehicle width direction of the sheet of the casing by the seat belt have accompanied the opening operation of the door is pulled,
Seat belt structure for a vehicle sliding means is provided for slidably guided in the vehicle longitudinal direction along the seat belt end portion in the vehicle compartment side. The lower rim of the door opening is joined to the vehicle width direction outside of the floor panel of the passenger compartment, and includes a side sill that protrudes upward from the floor panel,
The sliding means includes a guide member that is fixed to the vehicle body side and supports the end portion of the seat belt so as to be slidable in the front-rear direction.
The vehicle seat belt structure according to claim 1, wherein the guide member is provided below an upper end of a portion of the side sill that protrudes upward from the floor panel. The sliding means includes a guide member that is fixed to the vehicle body side and supports the end portion of the seat belt so as to be slidable in the front-rear direction.
The guide member includes a vehicle body corresponding to the shoulder anchor closed position at the door closed position;
The vehicle seat belt structure according to claim 1, wherein the vehicle seat belt structure is disposed between the door opening position and a vehicle body corresponding to the shoulder anchor opening position. The guide member is provided on the inner side in the vehicle width direction than the side surface of the vehicle interior of the side sill,
The portion where the shoulder anchor is provided in the door is displaced outward in the vehicle width direction with the opening operation of the door.
The vehicle seat belt structure according to claim 2. The door is set to a rear door whose rear part is supported by the vehicle body via a hinge,
The vehicle seat belt structure according to any one of claims 1 to 3, wherein the shoulder anchor is provided at a front portion of the door in a closed position . The vehicle seat belt structure according to claim 5, wherein a front door having a front portion supported by a vehicle body via a hinge is provided in front of the rear door . The vehicle seat belt structure according to claim 6 , wherein the door opening of the vehicle is formed by a single continuous opening that is openably and closably covered by a front door and a rear door . A plurality of rows of seats are arranged in the front and rear of the vehicle interior of the vehicle,
The vehicle seat belt structure according to any one of claims 5 to 7, wherein the seat belt is set for a front seat occupant disposed at a position corresponding to the front door . The sliding means includes a guide member fixed to the vehicle body side,
A slider that moves back and forth along the guide member,
The guide member is disposed in an inclined manner between the vehicle body corresponding to the rear door closed position and the vehicle body corresponding to the rear door open position.
The vehicle seat belt structure according to any one of claims 5 to 8.

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