JP6418121B2 - Retractor mounting structure - Google Patents

Description

  The present invention relates to a retractor mounting structure.

  Patent Document 1 below discloses a retractor mounting structure that suppresses deformation of the retractor frame. Explaining the technique described in this document, two portions of an anchor fixing portion on the rear side and an auxiliary fixing portion on the front side of a frame constituting a part of the retractor are fixed to a body panel (upper back panel). Further, a slit is formed in the auxiliary fixing part, and when the load acts on the frame of the retractor from the outer webbing during the sudden deceleration of the vehicle, the auxiliary fixing part is relatively displaced in the load acting direction. This suppresses deformation of the frame during sudden deceleration of the vehicle while suppressing an increase in the weight of the retractor.

JP 2000-108845 A

  By the way, in the configuration in which the retractor is attached to the body panel, it is important to suppress the deformation of the body panel when a load is input from the retractor to the body panel.

  In view of the above facts, an object of the present invention is to provide a retractor mounting structure capable of suppressing deformation of a body panel when a load is input from the retractor to the body panel.

The retractor mounting structure according to claim 1, wherein a seat belt webbing to be mounted on an occupant seated on a vehicle seat is stored, a retractor having a front fixing portion and a rear fixing portion, and a rear side of the vehicle seat. Extending in the vehicle front-rear direction and the vehicle width direction, the vehicle width direction outer side and the vehicle rear side edge are curved at the vehicle width direction outer side, and the front fixing portion and the rear fixing portion of the retractor are the vehicle A body panel having an opening fixed to each of the front and rear peripheral edges, and a bead formed along the vehicle width direction outer side of the opening and the vehicle rear side edge ; By forming a recessed portion with the front side open on the outer side in the vehicle width direction and the rear side of the opening, whether the edge on the outer side in the vehicle width direction and the rear side of the opening is the inner side in the vehicle width direction of the opening. The bead is curved so that the radius of curvature is larger than the front edge, the vehicle width direction inner side and the rear edge, and the vehicle width direction outer side and the front edge. A front-side extending portion extending from the middle portion in the vehicle front-rear direction at the outer edge in the width direction along the outer edge in the vehicle width direction and along the rear edge, and the intermediate portion in the vehicle front-rear direction of the bead has a dimension in the vehicle width direction. By gradually increasing inward in the vehicle width direction toward the vehicle rear side, an intermediate extension portion extending along the outer edge in the vehicle width direction and the rear edge of the opening is formed, and the vehicle rear side of the bead The side portion extends from the vehicle rear side to the rear side of the intermediate extension portion, and the inner portion in the vehicle width direction overlaps the vehicle width direction outer side and the rear edge of the opening portion in the vehicle front-rear direction. There is a rear extension .

  According to the retractor mounting structure of the first aspect, the front side fixing portion and the rear side fixing portion of the retractor are respectively fixed to the vehicle front side peripheral portion and the vehicle rear side peripheral portion of the opening formed in the body panel. Thus, the retractor is fixed to the vehicle body. Further, when an occupant seated on the vehicle seat moves to the front side of the vehicle in an emergency of the vehicle, a load is input to the body panel via the seat belt webbing and the retractor.

  Here, in the present invention, the edge formed on the vehicle panel in the vehicle width direction and on the vehicle rear side of the opening formed in the body panel is curved, and the edge on the vehicle width direction outside of the opening and on the vehicle rear side edge. A bead is formed along. Thereby, when the said load is input into the body panel, it can suppress that a body panel deform | transforms from the edge of the vehicle width direction outer side of an opening part, and a vehicle rear side as a starting point.

  The retractor mounting structure according to the present invention has an excellent effect that deformation of the body panel can be suppressed when a load is input from the retractor to the body panel.

It is the top view which looked at the upper back panel from the vehicle upper side. It is an enlarged plan view which expands and shows the site | part to which the retractor was attached in the upper back panel described in FIG. It is a perspective view which shows the rear part of the cabin of a vehicle.

  A retractor mounting structure according to an embodiment of the present invention will be described with reference to FIGS. In addition, the arrow FR, arrow UP, and arrow W shown in the drawing respectively indicate the forward direction (traveling direction), the upward direction, and the vehicle width direction of the vehicle. In the following description, the front / rear, left / right, and up / down directions will be described, unless otherwise specified, in the front / rear direction of the vehicle, as viewed from the occupant seated on the vehicle seat, in the vehicle left / right direction (vehicle width direction). Left and right and up and down in the vehicle up and down direction are shown.

  As shown in FIG. 3, the retractor mounting structure of the present embodiment is applied to the rear portion of the cabin 10. A rear seat 12 is provided at the rear of the cabin 10 as a vehicle seat that allows three passengers to sit side by side in the vehicle width direction. The rear seat 12 includes a seat cushion 14 that supports the occupant's buttocks and thighs, a seat back 16 that supports the back of the occupant, and a headrest 18 that supports the head of the occupant. A child seat fixing bar 22 to which a buckle 20 and a child seat (not shown) are fixed is provided at the boundary between the seat cushion 14 and the seat back 16, and the buckle 20 and the child seat fixing bar 22 cover a part of the vehicle body. It is fixed to a floor panel or the like that is not shown. An armrest 24 is tiltably provided at the center of the seat back 16 in the vehicle width direction. Further, a shoulder anchor 26 through which a seat belt webbing 60 described later is inserted is fixed to the upper end portion of the seat back 16.

  On the rear side of the rear seat 12, an upper back panel 30 is provided as a body panel that separates the trunk room 28 and the cabin 10 provided on the rear side of the rear seat 12 and constitutes a part of the vehicle body. A cover member 32 is attached to the upper back panel 30. Thereby, the upper back panel 30 is not visually recognized from the cabin 10 side.

  Next, the structure of the upper back panel 30 which is the principal part of this embodiment is demonstrated.

  As shown in FIG. 1, the upper back panel 30 extends in the vehicle front-rear direction and the vehicle width direction on the rear side of the rear seat 12 (see FIG. 3). The upper back panel 30 has a divided structure having a center panel 34 disposed in the center of the vehicle and side panels 36 and 38 respectively joined to both ends of the center panel 34 in the vehicle width direction. . A front reinforcement 40 and a rear reinforcement 42 extending in the vehicle width direction are joined to the front end portion and the rear end portion of the upper back panel 30, respectively.

  The center panel 34 is formed, for example, by subjecting a steel plate material to press working or the like, and the center panel 34 is formed in a rectangular shape with the vehicle width direction as a longitudinal direction in a vehicle plan view. At the center of the center panel 34 in the vehicle width direction, a first concave bead 44 is formed which is open on the vehicle upper side and extends along the vehicle front-rear direction. A tether anchor bar 46 to which a child seat tether strap (not shown) is locked is fixed to the bottom of the first concave bead 44. As shown in FIG. 3, the cover member 32 that covers the upper back panel 30 is provided with a tether anchor cover 48. By opening the tether anchor cover 48, the child seat tether strap is attached to the tether anchor bar. 46 can be locked.

  As shown in FIG. 1, a circular speaker arrangement hole 50 in which a speaker (not shown) is fixed to the peripheral portion is formed on the left side of the portion where the first concave bead 44 is formed in the center panel 34. In addition, on the rear side of the portion where the speaker arrangement hole 50 is formed in the center panel 34, there are three rectangles which are formed in a rectangular shape having the longitudinal direction in the vehicle front-rear direction and spaced in the vehicle width direction. A rear small bead 52 is formed. Further, on the left side of the portion of the center panel 34 where the speaker arrangement hole 50 is formed, a second concave bead 54 is formed which is open on the vehicle upper side and extends along the vehicle front-rear direction. A tether anchor bar 46 is fixed to the bottom of 54. The left end portion of the center panel 34 is a joining portion 56 that is overlapped and joined with the right end portion of the side panel 38.

  A retractor arrangement hole 58 formed in a rectangular shape in a plan view of the vehicle is formed in the front portion on the right side of the portion where the first concave bead 44 is formed in the center panel 34. In the retractor placement hole 58, a part of the retractor 62 for storing (winding) the webbing 60 (see FIG. 3) to be attached to the occupant seated in the center of the rear seat 12 (see FIG. 3) is placed. Has been. Further, the retractor 62 includes a frame 64 having a front side fixing portion 64F formed in a tongue shape extending toward the vehicle front side and a rear side fixing portion 64R formed in a tongue shape extending toward the vehicle rear side. ing. Then, the front side fixing portion 64F and the rear side fixing portion 64R of the frame 64 are respectively fixed to the vehicle front side peripheral portion 58F and the vehicle rear side peripheral portion 58R of the retractor arrangement hole 58, so that the retractor 62 is center panel. 34, that is, the retractor 62 is fixed to the vehicle body. Then, as shown in FIG. 3, the webbing 60 inserted through the shoulder anchor 26 is pulled out from the retractor 62 (see FIG. 1), and the tongue 61 through which the webbing 60 is inserted is locked to the buckle 20. Thus, the webbing 60 is attached to an occupant seated in the central portion of the rear seat 12. In addition, the retractor 62 and the retractor 78 described later are provided from the retractors 62 and 78 of the webbing 60 in the event of a vehicle emergency (when the webbing 60 is suddenly pulled out from the retractors 62 and 78 or when the vehicle is suddenly decelerated). It has a lock mechanism that restricts the pulling out. Further, on the rear side of the portion where the retractor arrangement hole 58 is formed in the center panel 34, a reinforcing plate that connects a portion where the rear fixing portion 64R of the frame 64 is fixed and a portion where the rear reinforcement 42 is joined. 66 is joined. Further, in the center panel 34, the left and right sides of the part where the retractor arrangement hole 58 is formed and the part where the reinforcing plate 66 is joined are formed in a convex shape on the upper side of the vehicle and along the vehicle longitudinal direction. A first convex bead 68 and a second convex bead 70 are formed.

  A third concave bead 72 is formed on the right side of the center panel 34 where the second convex bead 70 is formed. The third concave bead 72 is open at the vehicle upper side and extends along the vehicle longitudinal direction. A tether anchor bar 46 is fixed to the bottom of the. The right end of the center panel 34 is a joining portion 74 that is overlapped and joined with the left end of the side panel 36.

  The side panel 36 disposed on the right side of the vehicle is formed in a rectangular shape whose longitudinal direction is the front-rear direction in a plan view of the vehicle. As shown in FIG. 2, a retractor arrangement hole 76 serving as an opening formed in a rectangular shape in a vehicle plan view is formed in a portion of the side panel 36 on the vehicle front side. A part of the retractor 78 in which the webbing 60 (see FIG. 3) attached to the occupant seated on the right side of the rear seat 12 (see FIG. 3) is stored (wound up) is disposed in the retractor arranging hole 76. ing. The retractor 78 includes a frame 80 having a shape different from that of the frame 64 of the retractor 62 described above. The frame 80 includes a front fixing portion 80F formed in a tongue shape extending inwardly in the vehicle width direction toward the vehicle front side and a rear fixing portion formed in a tongue shape extending toward the vehicle rear side. 80R is provided. The front fixing portion 80F and the rear fixing portion 80R of the frame 80 are respectively fixed to the vehicle front side peripheral portion 76F and the vehicle rear side peripheral portion 76R of the retractor arrangement hole 76, so that the retractor 78 is a side panel. The retractor 78 is fixed to the vehicle body. Then, as shown in FIG. 3, the webbing 60 inserted through the shoulder anchor 26 is pulled out from the retractor 78 (see FIG. 2), and the tongue 61 through which the webbing 60 is inserted is locked to a buckle (not shown). Thus, the webbing 60 is attached to the occupant seated on the right side of the rear seat 12.

  As shown in FIG. 2, the vehicle width direction inner front edge 76IF, the vehicle width direction inner rear edge 76IR, and the vehicle width direction outer front edge 76OF of the retractor arrangement hole 76 are gently curved. Further, a substantially U-shaped recess 76 </ b> A having an open front side is formed at the rear side in the vehicle width direction of the retractor arrangement hole 76. As a result, the edge 76OR on the outer side in the vehicle width direction of the retractor arrangement hole 76 becomes the edge 76IF on the inner front side in the vehicle width direction, the edge 76IR on the inner rear side in the vehicle width direction, and the edge on the outer front side in the vehicle width direction. It is gently curved (curvature radius is increased) compared to 76 OF.

  A third convex bead 82 is formed as a bead formed in a convex shape on the vehicle upper side on the vehicle width direction outer side (right side) and rear side of the portion where the retractor arrangement hole 76 is formed in the side panel 36. . A portion on the front side of the third convex bead 82 is a front extending portion 82F extending from a middle portion in the front-rear direction on the outer edge in the vehicle width direction of the retractor arrangement hole 76 along the edge 76OR on the rear rear side in the vehicle width direction. ing. In addition, the intermediate portion in the front-rear direction of the third convex bead 82 is gradually increased inward in the vehicle width direction as the dimension W1 in the vehicle width direction goes rearward, so that the outer side of the retractor arrangement hole 76 in the vehicle width direction. The intermediate extending portion 82C extends along the rear edge 76OR. Furthermore, the rear side portion of the third convex bead 82 is a rear extension 82R whose dimension in the vehicle width direction is substantially the same as the maximum width W2 of the intermediate extension 82C. .

  As shown in FIG. 1, in the side panel 38 disposed on the left side, portions corresponding to the respective portions of the side panel 36 disposed on the right side are denoted by the same reference numerals as those of the respective portions of the side panel 36. Omitted. A retractor (not shown) is also fixed to the side panel 38. As shown in FIG. 3, a webbing 60 inserted into the shoulder anchor 26 is pulled out of the retractor, and a tongue 61 into which the webbing 60 is inserted is provided. The webbing 60 is attached to the occupant seated on the left side of the rear seat 12 by being locked to the buckle 20.

(Operation and effect of this embodiment)
Next, the operation and effect of this embodiment will be described.

  As shown in FIGS. 1 to 3, the locking mechanism of the retractors 78 and 62 is activated in the event of an emergency of the vehicle to which the retractor mounting structure of this embodiment is applied. As a result, the pulling of the webbing 60 from the retractors 78 and 62 is restricted, and the occupant seated on the rear seat 12 is restrained by the webbing 60.

  When the occupant seated on the rear seat 12 is moved to the front side of the vehicle, the retractors 78 and 62 are pulled to the front side of the vehicle via the webbing 60. As a result, the load input to the webbing 60 from the passenger seated on the rear seat 12 is input to the upper back panel 30 via the retractors 78 and 62.

  Here, in the present embodiment, in addition to the fact that the edge 76OR on the outer rear side in the vehicle width direction of the retractor arrangement hole 76 formed in the side panel 36 of the upper back panel 30 is curved, the vehicle width of the retractor arrangement hole 76 A third convex bead 82 is formed along the edge 76OR on the rear side in the direction. Thus, when a load from an occupant seated on the right side of the rear seat 12 is input to the side panel 36 of the upper back panel 30, the side panel 36 starts from an edge 76OR on the rear side in the vehicle width direction of the retractor arrangement hole 76. Deformation can be suppressed.

  In the present embodiment, the reinforcing plate 66 is joined to the rear side of the retractor arrangement hole 58 formed in the center panel 34 of the upper back panel 30 in the center panel 34. In addition, a first convex bead 68 and a second convex bead 70 are formed on the left and right sides of the part where the retractor arrangement hole 58 is formed and the part where the reinforcing plate 66 is joined in the center panel 34, respectively. Thereby, when a load from an occupant seated in the center portion of the rear seat 12 is input to the center panel 34 of the upper back panel 30, the center panel 34 is prevented from being deformed starting from the retractor arrangement hole 58. it can.

  In the present embodiment, the example in which the retractor mounting structure of the present invention is applied to the periphery of the retractor 78 that winds up the webbing 60 attached to the occupant seated on the right side of the rear seat 12 has been described, but the present invention is not limited thereto. Not. For example, the retractor mounting structure of the present invention may be applied to the periphery of a retractor (not shown) that winds up the webbing 60 attached to the occupant seated on the left side of the rear seat 12.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be implemented without departing from the spirit of the present invention. Of course.

12 Rear seat (vehicle seat)
30 Upper back panel (body panel)
60 Webbing 76 Retractor placement hole (opening)
76OR Edge in the vehicle width direction outside rear (edge in the vehicle width direction outside and vehicle rear side)
78 Retractor 80F Front side fixing part 80R Rear side fixing part 82 Third convex bead (bead)

Claims (1)

A retractor having a front-side fixing portion and a rear-side fixing portion, in which a webbing of a seat belt to be attached to an occupant seated on a vehicle seat is stored;
The vehicle seat extends in the vehicle front-rear direction and the vehicle width direction on the rear side of the vehicle seat, and an edge on the vehicle width direction outer side and the vehicle rear side is curved at an outer portion in the vehicle width direction so that the front side fixing of the retractor is performed. An opening in which the front and rear fixing portions are respectively fixed to the peripheral portions on the vehicle front side and the vehicle rear side, and a bead formed on the vehicle width direction outer side of the opening and along the edge on the vehicle rear side. A body panel having
Equipped with a,
By forming a recessed portion having a front side opened at a portion on the outer side and the rear side of the opening in the vehicle width direction, an edge on the outer side in the vehicle width direction and the rear side of the opening is on the inner side in the vehicle width direction of the opening and Curved to have a larger radius of curvature than the front edge, the vehicle width direction inner and rear edge, and the vehicle width direction outer and front edge,
The vehicle front side portion of the bead is a front extending portion that extends from the vehicle front-rear direction middle portion of the opening in the vehicle width direction outer side along the vehicle width direction outer side and the rear edge,
An intermediate portion of the bead in the vehicle front-rear direction is gradually increased inward in the vehicle width direction toward the vehicle rear side as a dimension in the vehicle width direction toward the vehicle rear side. An intermediate extension extending along the
The vehicle rear side portion of the bead extends from the vehicle rear side to the rear side of the intermediate extension portion, and the vehicle width direction inner side portion is the vehicle width direction outer side and rear edge of the opening and the vehicle front-rear direction. The retractor mounting structure is a rear extension that overlaps