JP4853405B2 - Shoulder anchor rail structure - Google Patents

Description

  The present invention relates to an adjustable shoulder anchor rail structure.

The slider to which the shoulder anchor is attached is provided on the guide rail such that its position (seat belt wearing height) can be adjusted (slidable). And this guide rail is attached to the vehicle interior side of the pillar inner panel of a center pillar by attachment means, such as a bolt and welding (for example, refer to patent documents 1 or patent documents 2). Therefore, the guide rail has a problem that the space on the vehicle interior side is narrowed in the vehicle width direction.
Japanese Patent Laid-Open No. 9-22001 JP-A-10-203306

  Then, an object of this invention is to obtain the shoulder anchor rail structure which can suppress that the space by the side of a vehicle interior becomes narrow in view of the said situation.

In order to achieve the above object, a shoulder anchor rail structure according to claim 1 of the present invention is disposed on a side part of a vehicle body, a slider to which a shoulder anchor for supporting a seat belt for restraining an occupant is attached, and a vehicle body. A guide rail formed by cutting and raising a part of a pillar inner panel constituting an inner plate of the pillar extending along the vertical direction, and holding the slider so that the position of the slider can be adjusted in the vertical direction of the vehicle body. It is said.

  According to the first aspect of the present invention, the guide rail that holds the slider, to which the shoulder anchor that supports the seat belt is attached, so that the position of the slider can be adjusted in the vertical direction of the vehicle body is (directly) formed on the pillar inner panel. There is no need to attach a guide rail to the pillar inner panel as in the prior art. Therefore, it can suppress that the space by the side of a vehicle interior becomes narrow.

  Further, the shoulder anchor rail structure according to claim 2 is the shoulder anchor rail structure according to claim 1, wherein the guide rail is formed so as not to protrude toward the vehicle interior side than the pillar inner panel. It is characterized by.

  According to the invention described in claim 2, since the guide rail is formed so as not to protrude toward the vehicle interior side from the pillar inner panel, it is possible to further suppress the narrowing of the space on the vehicle interior side. .

  As described above, according to the present invention, it is possible to provide a shoulder anchor rail structure capable of suppressing the space on the vehicle interior side from becoming narrow.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the present invention will be described below in detail based on the embodiments shown in the drawings. FIG. 1 is a schematic perspective view of the shoulder anchor rail structure according to the present embodiment with the slider omitted, FIG. 2 is a schematic side sectional view of the shoulder anchor rail structure according to the present embodiment, and FIG. 3 is the present embodiment. It is a schematic plane sectional view of the shoulder anchor rail structure concerning. In each drawing, the arrow UP is the vehicle body upward direction, and the arrow IN is the vehicle body (cabinet) inner side direction.

  As shown in FIGS. 1 to 3, the center pillar 40 is a vehicle body skeleton member that extends along the vertical direction of the vehicle body at a substantially central portion of the vehicle body side portion, and a pillar outer panel 42 that forms an outer plate, The pillar inner panel 44 constituting the inner plate has a closed cross-sectional structure. The pillar inner panel 44 is integrally formed with the guide rails 12 constituting the shoulder anchor rail structure 10.

  That is, a recess 45 that is recessed outward from the passenger compartment is formed at a predetermined position on the upper side of the pillar inner panel 44, and the guide rail 12 is formed on the outer periphery of the bottom of the recess 45 by cutting and raising. In other words, the guide rail 12 is formed in a state of being dropped into the recess 45 of the pillar inner panel 44, and is connected to the pillar inner panel 44 via the connecting portions 48 and 49 at both ends of the vehicle body in the vertical direction. It is connected continuously.

  A slider 20 to which a shoulder anchor 26 for supporting an occupant restraining seat belt (webbing) 30 is attached to the guide rail 12 so that the position of the slider 20 can be adjusted in the vehicle body vertical direction (longitudinal direction of the center pillar 40). 3, the guide rail 12 protrudes toward the vehicle interior side on both sides of the guide rail 12 and extends beyond the protrusion 46 of the pillar inner panel 44 extending in the vertical direction of the vehicle body. It is formed so as not to protrude toward the vehicle interior side.

  As shown in FIG. 1, the guide rail 12 includes a rail main body 14 formed by being integrally cut and formed by drilling an opening 43 having a predetermined shape in the pillar inner panel 44, and the rail main body 14. A plurality (four in the figure) are formed in the center at predetermined intervals in the vertical direction of the vehicle body. The engagement hole 16 into which the position adjustment pin 22 of the slider 20 is inserted and the vehicle interior side on both sides of the rail body 14 The holding portion 24 of the slider 20 has a rail portion 18 that is slidably fitted in the vertical direction of the vehicle body.

  The engagement hole 16 is formed in a non-penetrating rectangular shape except for the uppermost side in a front view, and a wall surface 16A on the vehicle body upper side in the non-penetrating engagement hole 16 is a vehicle interior. It is formed in a taper shape with a predetermined angle θ that tilts inward (see FIG. 2). As a result, the position adjusting pin 22 that is urged and projected outwardly by the urging means (not shown) is pushed by the wall surface 16A as the vehicle body moves upward, and the position adjusting pin 22 moves toward the vehicle interior side. In this configuration, the urging means can be retracted against the urging force. The uppermost engagement hole 16 has a simple configuration in which the position adjustment pin 22 can be inserted, for example, a circular through hole, because the slider 20 does not move upward in the vehicle body.

  Further, in the guide rail 12, the rail main body portion 14 between the engagement hole 16 and the rail portion 18 is formed with a ridge portion 15 extending in the vehicle body vertical direction. For example, the protrusion 15 is convex when viewed from the vehicle interior side and is concave when viewed from the vehicle interior side, whereby the strength of the rail body 14 is improved. ing. The guide rail 12 supports the lower end of the slider 20 when the slider 20 is held at the lowest position (when the position adjusting pin 22 is inserted into the lowermost engagement hole 16). A possible stopper 17 is formed (see FIG. 2).

  On the other hand, as shown in FIGS. 2 and 3, the slider 20 is urged toward the vehicle compartment outer side by urging means (not shown) such as a coil spring, and is brought into one of the plurality of engagement holes 16 of the guide rail 12. When inserted, the slider 20 is fixed to a desired position in the vertical direction of the vehicle body, and the position adjustment pin 22 and the rail portion 18 of the guide rail 12 are fitted so as to be slidable in the vertical direction of the vehicle body from both sides. U-shaped holding portion 24. And the shoulder anchor 26 which supports the seatbelt 30 is attached to this slider 20 by the anchor bolt 32 mentioned later.

  The shoulder anchor 26 includes a slip joint 28 through which the seat belt 30 is inserted, an anchor bolt 32 for attaching the shoulder anchor 26 to the slider 20 while pivotally supporting the slip joint 28 so as to be pivotable in the longitudinal direction of the vehicle body, No operation is required when raising the slide plate 34 covering the bolt 32 and the shoulder anchor 26 in the upward direction of the vehicle body. However, when the shoulder anchor 26 is lowered in the downward direction of the vehicle body, the operation is performed (push-in operation) to adjust the position adjustment pin. And an operation member 36 that forcibly retracts 22 from the engagement hole 16 (moves it toward the vehicle interior side).

  The configuration in which the position adjusting pin 22 is forcibly retracted (moved toward the vehicle interior side) against the urging force of the urging means by the operation (push-in operation) of the operation member 36 is the same as that of the related art. Since it is the same, the detailed description is abbreviate | omitted. Further, at least the slip joint 28 and the operation member 36 are exposed from the pillar garnish 38.

  Next, the operation of the shoulder anchor rail structure 10 configured as described above will be described. The guide rail 12 is formed integrally with the pillar inner panel 44 of the center pillar 40, and is formed so as not to protrude toward the vehicle interior side from the convex portion 46 of the pillar inner panel 44. That is, the guide rail 12 is formed in a state of being dropped into a recess 45 that is recessed toward the outside of the passenger compartment of the pillar inner panel 44.

  Therefore, compared to the conventional configuration in which the guide rail is attached so that a predetermined gap is formed between the pillar inner panel 44 and the recess 45, the guide rail 12 is not necessary to secure the gap. The thickness of the included center pillar 40 can be reduced. Therefore, it is possible to prevent the space on the vehicle interior side from being narrowed in the vehicle width direction, and it is possible to solve the problem that the center pillar 40 looks thick and impairs the overall appearance.

  Further, since the guide rail 12 is integrally formed by cutting and raising the pillar inner panel 44, there is a sufficient gap between the guide rail 12 and the pillar outer panel 42. Therefore, even when a side collision occurs, the load that enters the occupant side from the shoulder anchor 26 can be reduced at the time of a secondary collision of the occupant.

  Furthermore, since the guide rail 12 is integrally formed with the pillar inner panel 44, it is not necessary to attach the guide rail to the pillar inner panel 44 by bolts, welding, or the like (not shown) as in the prior art. Therefore, the number of assembling steps can be reduced and the assembling time can be shortened as compared with the conventional case.

  In addition, the pillar inner panel 44 is usually formed thicker than the pillar outer panel 42, but the pillar inner panel 44 according to the present embodiment is formed thicker than the conventional pillar inner panel. Yes. And the rail main-body part 14 is formed with the protrusion part 15, and the rigidity of the rail main-body part 14 is improved. Therefore, even if the guide rail 12 is formed integrally with the pillar inner panel 44, the rigidity can be sufficiently secured.

  In addition, the guide rail 12 according to the present embodiment formed by cutting and raising has a width W1 on the side connected to the pillar inner panel 44 of the upper side connecting portion 48 and the pillar inner side of the lower side connecting portion 49. It is formed smaller than the width W2 on the side connected to the panel 44 (see FIG. 1). However, since the pillar inner panels 44 on both sides of the upper connecting portion 48 are formed with recesses 47 that are recessed toward the outside of the passenger compartment, the supporting rigidity of the upper connecting portion 48 is sufficiently secured.

  The process of attaching the slider 20 to the guide rail 12 configured as described above will be briefly described. The slider 20 is inserted from the upper side of the guide rail 12 in the vehicle body. That is, the holding portion 24 of the slider 20 is fitted to the rail portion 18 of the guide rail 12 from above the vehicle body, and the slider 20 is slid downward while operating the operation member 36 (pressing operation). Then, the operation (push-in operation) of the operation member 36 is released, and the position adjusting pin 22 is protruded outwardly by the urging force of the urging means and is inserted into one of the plurality of engagement holes 16. Thereby, the slider 20 is fixed to a predetermined position (for example, the lowest position) (see FIG. 2).

  As described above, the rail body portion 14 facing the end surface 32A of the anchor bolt 32 on the outer side of the passenger compartment is formed with the ridge 15 having a convex shape on the inner side of the passenger compartment. Therefore, when the slider 20 slides in the vertical direction of the vehicle body, the end surface 32A of the anchor bolt 32 comes into sliding contact with the protrusion 15. Thereby, the sliding resistance with respect to the rail main-body part 14 of the slider 20 can be reduced.

The schematic perspective view which abbreviate | omits and shows the slider of the shoulder anchor rail structure which concerns on this embodiment Schematic side sectional view of the shoulder anchor rail structure according to the present embodiment Schematic plan sectional view of the shoulder anchor rail structure according to the present embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shoulder anchor rail structure 12 Guide rail 14 Rail main-body part 15 Projection part 16 Engagement hole 18 Rail part 20 Slider 22 Position adjustment pin 24 Holding part 26 Shoulder anchor 30 Seat belt (webbing)
32 Anchor bolt 40 Center pillar (pillar)
42 Pillar outer panel 44 Pillar inner panel

Claims (2)

A slider to which a shoulder anchor supporting a seat belt for restraining an occupant is attached;
A guide disposed on the side of the vehicle body and formed by cutting and raising a part of a pillar inner panel that constitutes an inner plate of the pillar extending along the vertical direction of the vehicle body and holding the slider so that the position of the slider can be adjusted in the vertical direction of the vehicle Rails,
A shoulder anchor rail structure characterized by comprising:   The shoulder anchor rail structure according to claim 1, wherein the guide rail is formed so as not to protrude toward the vehicle interior side than the pillar inner panel.

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