JP2009029289A - Seat belt device of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat belt device for an automobile, preventing a seat belt from hanging down in a vehicle cabin without deteriorating an appearance and adding another component. <P>SOLUTION: The seat belt device for the automobile comprises: a retractor 11 installed in a rear pillar (a vehicle body side member) 5, and winding up the seat belt 12 in a normal retracting direction while movably supporting the seat belt 12 in a normal use state; and a belt relay member 13 installed in the vehicle body side member 5, and movably guiding/supporting the seat belt 12 pulled out from the retractor 11. At a border portion between an upper edge portion 7a of an interior member 7 disposed in an interior side of the vehicle body side member 5 and a side edge portion 6c of a ceiling member 6, a belt insertion portion 19 guiding the seat belt 12 into the vehicle cabin 2 through the belt relay member 13. At the side edge portion 6c of the ceiling member 6, an extending portion 6d extending to the vehicle outer side so as to cover the belt insertion portion 19 is formed. The extending portion 6d abuts on and is supported by the belt relay member 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seat belt device for an automobile in which an occupant seated in a central portion of a rear seat can be restrained by the rear seat.

  In automobiles, there are cases where a three-point seat belt device is provided in order to enhance the restraining performance of an occupant seated in the center of the rear seat.

As this type of three-point seat belt device, a seat belt pulled out from a retractor arranged in a vehicle body side member is guided into a vehicle interior from an insertion hole of an interior member arranged inside the vehicle body side member, and a ceiling member It is made to guide to the center part of a rear seat via the belt guide member attached to (for example, refer to patent documents 1).
JP 2003-341472 A

  In the conventional apparatus, there is a concern that the ceiling member and the seat belt interfere with each other or that the appearance of the insertion hole and the ceiling terminal deteriorates. In order to avoid such a problem, it is conceivable to add a belt insertion part which is a separate member. However, if belt insertion parts are added, the number of parts and assembly man-hours increase accordingly. In order to avoid this problem, the seat belt may be configured to be inserted near the boundary between the interior member and the ceiling member. However, in this case, the height positional relationship between the seat belt and the ceiling member is reduced. There is a concern about interference between the ceiling member and the seat belt due to the hanging of the ceiling member.

  The present invention has been made in view of the above-described conventional situation, and can prevent the interference between the ceiling member and the seat belt due to the hanging of the ceiling member without adding another part or deteriorating the appearance. An object is to provide an apparatus.

  The present invention relates to an automobile seat belt device capable of restraining an occupant seated in a vehicle width direction center portion of a rear seat to the rear seat, and is mounted in a vehicle body side member so that the seat belt is movable in a normal use state. A retractor that always winds in the retracting direction while being supported, and a belt relay member that is attached within the vehicle body side member and that movably guides and supports the seat belt pulled out from the retractor. A belt insertion portion for guiding the seat belt into the vehicle interior via the belt relay member is formed at a boundary portion between an upper edge portion of the interior member disposed on the side wall and a side edge portion of the ceiling member, and a side edge of the ceiling member The portion is formed with an extension portion extending outward from the vehicle so as to cover the belt insertion portion, and the extension portion is abutted and supported by the belt relay member.

  According to the seat belt device according to the present invention, since the seat belt is led into the vehicle interior from the boundary between the upper edge of the interior member and the side edge of the ceiling member, there is no need to separately provide a belt insertion part, The increase in the number of parts and assembly man-hours can be prevented.

Moreover, since the extension part extended so that a belt insertion part may be covered is formed in the side edge part of a ceiling member, there is no possibility that the edge part of a ceiling member can be seen from a belt insertion part, and the deterioration of appearance can be prevented.

  Furthermore, since the extension portion is brought into contact with the belt relay member, the extension portion can be positioned and supported by the belt relay member, and the position of the ceiling member with respect to the interior member can be stabilized. As a result, it is possible to make the belt insertion portion the minimum necessary size, and it is possible to prevent the deterioration of appearance even more reliably from this point.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIGS. 1 to 6 are views for explaining a seat belt device for an automobile according to an embodiment of the present invention, and FIGS. 1 and 2 are perspective views showing a mounted state of the seat belt device disposed on a rear seat. 3 is a perspective view of the seat belt device viewed from the inside of the vehicle, FIG. 4 is a cross-sectional view of the seat belt device (cross-sectional view taken along line IV-IV in FIG. 3), and FIG. 5 is a part of the seat belt device viewed from the front of the vehicle. FIG. 6 is a bottom view of the ceiling member.

  In the figure, reference numeral 1 denotes a bench-type three-seat rear seat disposed in a passenger compartment 2 of an automobile. The rear seat 1 includes a seat cushion 3 and a seat back 4 that is supported by the seat cushion 3 so as to be rotatable between a seating position and a forward-turning position.

  The vehicle compartment 2 includes a rear pillar (vehicle body side members) 5 and 5 disposed so as to extend vertically to the left and right sides of the rear seat 1 and a ceiling disposed between upper ends of the left and right rear pillars 5. It is comprised by the space enclosed by the member 6 and the floor member (not shown) arrange | positioned between lower ends.

  A rear door (not shown) is provided on the front side of the rear pillar 5, and a back door (not shown) is provided on the rear side. Further, a wheel house portion 5c is formed at the lower edge portion of the rear pillar 5 so as to cover the rear wheel (not shown) (see FIG. 3).

  The rear pillar 5 has a structure in which a closed section extending in the vertical direction is formed by an outer panel 5a disposed on the outer side of the vehicle and a pillar rein hose 5b disposed on the inner side of the outer panel 5a.

  A resin interior member 7 is disposed on the rear pillar 5 on the vehicle compartment 2 side so as to cover the upper half of the rear pillar 5. The interior member 7 is attached to the outer panel 5a and the pillar rein hose 5b.

  The ceiling member 6 is manufactured by press molding and has a structure in which a skin 6b made of a nonwoven fabric or the like is bonded to a ceiling base material 6a made of a foamed polystyrene resin or the like.

  The ceiling member 6 is attached to a roof member (not shown) disposed above the ceiling member 6. The upper edge portion 7a of the interior member 7 is in contact with the left and right edge portions 6c of the ceiling member 6 so as to cover the left and right edge portions 6c.

  The rear seat 1 is provided with a three-point seat belt device 10 that restrains an occupant seated on a center portion 1a in the vehicle width direction of the rear seat 1 to the rear seat 1 at the time of a vehicle collision.

  The seat belt device 10 includes a retractor 11 attached to a lower part in the rear pillar 5, a seat belt 12 wound around the retractor 11, and an upper part in the rear pillar 5. A belt relay member 13 that movably guides and supports the pulled-out seat belt 12 and a guide that is disposed on the ceiling member 6 in the passenger compartment 2 and guides the seat belt 12 to the center 1a in the vehicle width direction of the rear seat 1. Hanger member 14.

  The seat belt device 10 has a pair of left and right first buckles 20 and second buckles 21 disposed in the vehicle width direction central portion 1a of the rear seat 1, and the first buckle 20 and the second buckle 21 are It is fixed to a seat frame (not shown) or a floor member.

  The seat belt 12 includes a first tongue plate 8 that is mounted on the front end of the seat belt 12 so as not to move, and a second tongue plate 9 that is mounted on the seat belt 12 so as to be movable.

  The retractor 11 always winds the seat belt 12 in a retracted direction while allowing the seat belt 12 to freely move in a normal use state, and when a pulling force of a predetermined acceleration or more acts on the seat belt 12 due to a vehicle collision, the seat belt 12 Locks immovable.

  The belt relay member 13 is made of a sheet metal and is disposed at a position facing a boundary portion between the ceiling member 6 and the interior member 7.

  The belt relay member 13 is substantially U-shaped and opens downward, and more specifically, a base portion 13a fixed to the inner wall surface of the pillar rein hose 5b of the rear pillar 5 by a bolt 15, and the base portion The upper wall portion 13b extends from the upper edge of 13a so as to form a substantially flat surface on the vehicle inner side, and the vertical wall portion 13c extends downward from the inner edge of the upper wall portion 13b. The said bolt 15 is attached from the diagonally downward direction in the compartment 2 without interfering with the vertical wall part 13c.

  A rectangular opening 13d into which the seat belt 12 can be inserted is formed in the vertical wall portion 13c, and a peripheral portion of the opening 13d is surrounded by the resin member 16, and the seat belt 12 slides on the resin member 16. It touches.

  The guide hanger member 14 is disposed in the vicinity of the center in the vehicle width direction of the ceiling member 6, passes through the ceiling member 6, and is fixed to the roof member by a fixing bolt 17.

  The guide hanger member 14 includes a belt guide portion 14a that guides the seat belt 12 to the vehicle width direction central portion 1a of the rear seat 1 so as to be movable in the vertical direction, and the first tongue plate 8 and the second tongue plate 9 when not in use. And a tongue plate holding portion 14b for storing and holding the.

  A belt insertion part 19 is formed at the boundary between the ceiling member 6 and the interior member 7. The belt insertion portion 19 is formed by notching the upper edge portion 7a of the interior member 7 to a size that allows the seat belt 12 to be inserted. The upper edge portion 7a and the side edge portion 6c of the ceiling member 6 are formed. And surrounded by

  The belt insertion portion 19 is located at substantially the same height as the opening 13d of the belt relay member 13, and is disposed so as to substantially face the opening 13d when viewed in the vehicle width direction.

  A tongue-shaped extension 6d is formed on the side edge 6c of the ceiling member 6, and the extension 6d extends to the outside of the vehicle so as to cover the upper side of the belt insertion part 19.

  The extension portion 6d is in contact with the upper surface of the upper wall portion 13b of the belt relay member 13, and is prevented from moving downward by the upper wall portion 13b.

  In order to wear the seat belt 12, the first tongue plate 8 is pulled down from the guide hanger member 14 and attached to the first buckle 20, and the second tongue plate 9 is attached to the second buckle 21. Thus, the shoulder and waist of the occupant are movably supported by the seat belt 12. When a pulling force greater than a predetermined acceleration acts on the seat belt 12 due to a vehicle collision, the seat belt 12 is locked so as not to move, and the occupant is restrained by the rear seat 1.

  To retract the seat belt 12, the lock release buttons (not shown) of the first buckle 20 and the second buckle 21 are pushed to remove the first tongue plate 8 and the second tongue plate 9, and the tongue plates 8, 9 are removed. The guide hanger member 14 is stored in the tongue plate holding portion 14b. In this case, since the belt insertion part 19 is located at substantially the same height as the ceiling member 6, the seat belt 12 wound up by the retractor 11 is held in a tension state at a position close to the ceiling member 6. . Therefore, it is possible to prevent the seat belt 12 from hanging into the passenger compartment 2 when the belt is not used, and it is possible to prevent the seat belt from obstructing the rear view and deteriorating the appearance.

  In the present embodiment, since the seat belt 12 is led into the passenger compartment 2 from the boundary between the upper edge 7a of the interior member 7 and the side edge 6c of the ceiling member 6, there is no need to provide a separate belt insertion part. The increase in the number of parts and assembly man-hours can be prevented.

Further, in the present embodiment, since the extension 6d extending outward from the vehicle is formed on the side edge 6c of the ceiling member 6 so as to cover the upper side of the belt insertion part 19, the edge of the ceiling member 6 can be seen from the belt insertion part 19. This can prevent the appearance from deteriorating. Thereby, it is not necessary to cover the edge of the ceiling member 6 with another component, and an increase in the number of components and the number of assembling steps can be avoided.

  In the present embodiment, the extension portion 6d is brought into contact with the upper wall portion 13b of the belt relay member 13 to prevent the extension portion 6d from moving downward. Positioning and support can be achieved, and consequently the belt insertion portion 19 can be made as small as possible so that the seat belt 12 can be inserted, and deterioration in appearance can be prevented more reliably.

  That is, since the mounting positions of the ceiling member 6 and the interior member 7 are usually not dependent on each other, the height position of the ceiling member 6 with respect to the interior member 7 may vary. In order to absorb such variation in the mounting position between the ceiling member 6 and the interior member 7, it is necessary to increase the opening area of the belt insertion portion 19. On the other hand, in this embodiment, since the extension part 6d of the ceiling member 6 is supported by the belt relay member 13, the positional accuracy between the side edge part 6c of the ceiling member 6 and the upper edge part 7a of the interior member 7 is increased. Accordingly, the opening size of the belt insertion portion 19 can be reduced accordingly.

  In the present embodiment, the belt relay member 13 has a U-shape that opens downward, and the base portion 13a of the belt relay member 13 is fixed to the pillar rein hose 5b with the bolts 15. It can be easily installed without interfering with. That is, in order to attach the belt relay member 13 after the ceiling member 6 is assembled, the belt relay member 13 can be fixed by the bolt 15 in a state where the belt relay member 13 is inserted from below and brought into contact with the extension 6d. It is necessary to have a shape like a form.

In addition, when attaching a belt relay member before the assembly | attachment of a ceiling member, the shape of this belt relay member can be selected freely. For example, the base portion can be formed to extend upward from the outer edge of the upper wall portion.

It is a perspective view of the wearing condition of the seatbelt device of a car by one embodiment of the present invention. It is a perspective view of the wearing condition of the seat belt device. It is the perspective view of the said seatbelt apparatus seen from the vehicle inside. It is sectional drawing (IV-IV sectional view taken on the line of FIG. 3) of the said seatbelt apparatus. It is a component block diagram of the said seatbelt apparatus. It is a bottom view of the ceiling member of the embodiment.

Explanation of symbols

1 Rear seat 2 Car compartment 5 Rear pillar (vehicle body side member)
6 Ceiling member 6c Side edge portion 6d Extension portion 7 Interior member 7a Upper edge portion 10 Seat belt device 11 Retractor 12 Seat belt 13 Belt relay member 19 Belt insertion portion

Claims (1)

An automobile seat belt device capable of restraining an occupant seated at a center portion in a vehicle width direction of a rear seat to the rear seat,
A retractor that is mounted in the vehicle body side member and always winds in the retracting direction while supporting the seat belt movably in a normal use state;
A belt relay member attached in the vehicle body side member and movably guiding and supporting the seat belt pulled out from the retractor;
A belt insertion portion for guiding the seat belt to the vehicle interior via the belt relay member is formed at a boundary portion between the upper edge portion of the interior member disposed on the indoor side of the vehicle body side member and the side edge portion of the ceiling member. And
An extension that extends to the outside of the vehicle is formed at a side edge of the ceiling member so as to cover the belt insertion portion, and the extension is in contact with and supported by the belt relay member. Seat belt device.

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