JP2019127059A - Pillar trim structure - Google Patents

Abstract

To provide a pillar trim structure capable of further increasing a gap between an occupant and a pillar trim at the time of a collision.SOLUTION: A pillar trim structure comprises: a pillar trim 30 attached to a pillar 20; an insertion hole provided in the pillar trim 30 and extending in a vertical direction of a cabin; and a wire 40 inserted into the insertion hole, with opposite ends fixed to a pillar inner 22 and a side sill 8.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a pillar trim structure capable of further expanding a gap between a pillar trim and an occupant during a collision.

  Normally, a pillar trim made of resin, for example, as an interior material is attached to the interior side of the vehicle pillar so as to cover the pillar. The pillar trim is required not only to improve the aesthetics of the passenger compartment, but also to further improve the passenger protection performance in the event of a collision.

  The conventional pillar trim is fixed to the pillar by a clip (see, for example, Patent Document 1). In the conventional pillar trim structure provided with such a pillar trim, when the pillar or the door is deformed by the collision, the pillar trim is also deformed accordingly. However, the deformation of the pillar trim is inhibited by the clip, and the pillar trim may enter the cabin side without being crushed too much.

  In particular, in a small vehicle having a short front and rear length of the vehicle, the position of the occupant relative to the pillar is closer than that of a normal vehicle or a large vehicle. For this reason, the gap between the pillar trim and the occupant may be narrow, and the impact absorbing space may be relatively small.

JP 2001-310699 A

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a pillar trim structure capable of further enlarging a gap between a passenger and a pillar trim at the time of a collision.

  A first aspect of the present invention for solving the above problems is a pillar trim attached to a pillar, an insertion hole provided in the pillar trim and extending in the vertical direction of a vehicle compartment, and a vehicle body having both ends through the insertion hole. A pillar trim structure characterized by comprising a fixed rope.

  In the first aspect, when there is a collision from the side of the vehicle, the penetration hole of the pillar trim can be broken by the cord, and the pillar trim can be easily crushed. As a result, the extent to which the pillar trim protrudes toward the passenger compartment can be suppressed, and the gap between the pillar trim and the occupant can be further enlarged.

A second aspect of the present invention is the pillar trim structure according to the first aspect, wherein the pillar trim includes a bending portion in which both ends in the longitudinal direction of the vehicle are bent outward in the vehicle width direction, The pillar trim structure is characterized in that the insertion hole is provided at a bending portion.
In the second aspect, since the entire pillar trim collapses into a planar shape at the time of a collision, the extent to which the pillar trim protrudes toward the vehicle compartment can be further suppressed.

A third aspect of the present invention is the pillar trim structure according to the second aspect, wherein the insertion hole is formed in a bowl shape in cross section, and a tip portion constituting the bowl shape is an inner side of the bent portion The pillar trim structure is characterized in that the pillar trim structure is formed.
In the third aspect, the cord tends to break the insertion hole, and the moving direction of the cord can be directed to the tip end side of the insertion hole, and the pillar trim can be crushed more reliably.

A fourth aspect of the present invention is the pillar trim structure according to any one of the first to third aspects, wherein the lower end portion of the cord is fixed to a frame of a vehicle body. It is in.
In the fourth aspect, the penetration hole can be broken by the cord, and the pillar trim can be crushed more reliably.

A fifth aspect of the present invention is the pillar trim structure according to any one of the first to fourth aspects, wherein the cords are insert-molded to the pillar trim.
In the fifth aspect, the pillar trim can be firmly fixed to the pillar via the cord.

  According to the present invention, the gap between the occupant and the pillar trim at the time of a collision can be further enlarged, and the occupant protection performance can be further improved.

It is a top view of a pillar trim structure. It is the side view of the pillar trim structure seen from the vehicle interior. It is a front view of the pillar trim structure seen from the vehicle front side. It is sectional drawing of a pillar trim structure. It is principal part sectional drawing which expanded a part of pillar trim structure. It is a front view of the pillar trim structure at the time of a collision. It is principal part sectional drawing to which a part of pillar trim structure at the time of a collision was expanded.

  Hereinafter, modes for carrying out the present invention will be described. In addition, description of embodiment is an illustration and this invention is not limited to the following description.

<Embodiment 1>
The pillar trim structure of the present embodiment will be described with reference to FIGS. 1 to 5.
As shown in FIG. 1, a seat 3 is disposed in a compartment 2 of the vehicle 1. The pillar trim structure 10 is located on the side of the seat 3. More specifically, the pillar trim structure 10 is located in front of the seat back 3 a and is disposed to face the head and torso of a passenger who has got on the seat 3. A front door 7 including a door outer panel 4, a door inner panel 5 and a door trim 6 is provided in front of the pillar trim structure 10.

  As shown in FIGS. 2 to 4, the pillar trim structure 10 includes a pillar trim 30 attached to the pillar 20.

  The pillar 20 is a center pillar of the vehicle 1, and specifically, the pillar outer 21 and the pillar inner 22 are joined to have a closed cross section. The lower ends of the pillar outer 21 and the pillar inner 22 are fixed to the side sill 8 of the vehicle 1.

  The pillar trims 30 are attached along the pillars 20 so as to cover the pillars 20. In the present embodiment, the pillar trim 30 is formed long in the vertical direction of the vehicle 1 and both end portions in the front-rear direction of the vehicle 1 are bent outward in the vehicle width direction. The pillar trim 30 is manufactured by molding a resin material, but is not limited to such a material.

  The pillar trim 30 has a concave shape that is open toward the side of the pillar 20 in the cross-sectional view shown in FIG. 4, and forms a space S with the pillar 20. Specifically, the pillar trim 30 has a front portion 33 which is a portion facing the compartment 2, a side portion 34 which is a portion facing the front and the rear of the vehicle 1 continuously from the front portion 33, and a front portion 33. And a bent portion 31 which is a portion bent at the boundary of the side surface portion 34.

  The pillar trim 30 is provided with an insertion hole 32 (see FIG. 5) extending in the vertical direction of the vehicle 1. In the present embodiment, the insertion holes 32 are respectively provided in the two bent portions 31 of the pillar trim 30. The upper opening of the insertion hole 32 opens at the upper end surface of the pillar trim 30. Further, the lower side opening of the insertion hole 32 is open at the side surface on the side of the pillar inner 22 at a height substantially equal to the seat surface of the seat 3.

  Of course, the total length and the opening position of the insertion hole 32 are not limited to those described above. The position where the insertion hole 32 is provided is not limited to the bending portion 31. For example, the insertion hole 32 may be provided in the front portion 33 facing the compartment 2 side. Further, the number of insertion holes 32 is not particularly limited.

  The cross-sectional shape of the insertion hole 32 in plan view is formed in a wedge shape with a sharpened tip. More specifically, in the cross-sectional shape, the tip end portion is directed to the inside (the pillar inner 22 side) of the bent portion 31 which is a boundary line between the front surface portion 33 and the side surface portion 34 of the pillar trim. With such a cross-sectional shape, as described later, the wire 40 can easily break the insertion hole 32, and the moving direction of the wire 40 can be directed to the tip end side of the insertion hole 32. Of course, the cross-sectional shape is not limited to that described above, and any cross-sectional shape through which the wire 40 can be inserted may be used.

  By providing such an insertion hole 32, a fragile portion 36 is formed in the pillar trim 30. As shown in FIG. 5, the fragile portion 36 is a portion of the pillar trim 30 that is closer to the pillar 20 than the insertion hole 32. The fragile portion 36 is thinner than the other portions of the pillar trim 30 (for example, the front surface portion 33, the side surface portion 34, and the like). The fragile portion 36 is a portion which is easily broken by the wire 40 as described later.

  The wire 40 is inserted through such an insertion hole 32. The wire 40 is an example of a cord described in the claims. Both ends of the wire 40 are fixed to the vehicle body. In the present embodiment, the upper end of the wire 40 is fixed to the pillar inner 22, and the lower end of the wire 40 is fixed to the side sill 8 which is a framework member. In addition, the both ends of the wire 40 are not limited to what was mentioned above, For example, both ends may be fixed to the pillar inner 22, and may be fixed to arbitrary site | parts of a vehicle body, such as a roof side rail.

  In the present embodiment, there is a gap between the wire 40 and the inner surface of the insertion hole 32, but the present invention is not limited to such a configuration. For example, in the configuration in which the wire 40 is insert-molded to the pillar trim 30, no gap is generated between the wire 40 and the insertion hole 32.

  The wire 40 passes through the pillar trim 30 and is fixed at both ends in a tensioned state. The pillar trim 30 is fixed to the pillar 20 by such a wire 40. The pillar trim 30 need not be fixed to the pillar 20 only by the wire 40. For example, the upper end and the lower end of the pillar trim 30 may be fixed to a part of the vehicle body such as the side sill 8. At least, as in the case of a conventional clip, a fixing member may not be provided between the pillar trim 30 and the pillar inner 22 for fixing them.

  The pillar trim structure at the time of collision will be described with reference to FIGS. As shown in FIG. 6, when another vehicle or an obstacle collides with the pillar 20 from the side of the vehicle, the pillar 20 is deformed like a bow. Specifically, of the pillars 20, the central portion 25 directly collided enters the compartment 2 and the load causes the upper end 26 and the lower end 27 to bend to the opposite side of the compartment 2. Thus, when the pillar 20 is deformed into a bow, both ends of the wire 40 are pulled to the outside of the vehicle.

  As shown in FIG. 7, the pulled wire 40 breaks the insertion hole 32 (fragile portion 36). As described above, since the insertion hole 32 is broken by the wire 40, the thickness of the bent portion 31 of the pillar trim 30 is reduced by the wire 40, and the rigidity of the pillar trim 30 is reduced. Therefore, the pillar trim 30 is easily crushed by the impact of the collision. That is, the pillar trim 30 and the pillar 20 collapse in the vehicle width direction, and the space S (see FIG. 4) between the pillar trim 30 and the pillar 20 also collapses.

  As described above, the pillar trim structure 10 can easily break the pillar trim 30 by breaking the insertion hole 32 of the pillar trim 30 with the wire 40 when there is a collision from the side of the vehicle. Thereby, the extent to which the pillar trim 30 protrudes to the vehicle compartment 2 side can be suppressed, and the gap between the pillar trim 30 and the occupant can be further enlarged. As mentioned in the prior art, small cars tend to be closer in distance between the pillar trim structure and the occupant. Therefore, the pillar trim structure 10 that is easily crushed and has an enlarged gap with the occupant is particularly useful for such a small vehicle.

  In the pillar trim structure 10 according to the present embodiment, an insertion hole 32 is provided in the bent portion 31 of the pillar trim 30. As a result, the entire pillar trim 30 collapses into a flat shape at the time of a collision, so that it is possible to efficiently collapse so as to reduce the remaining crushing, and it is possible to further suppress the extent to which the pillar trim 30 protrudes to the vehicle compartment 2 side.

  In the pillar trim structure 10 according to the present embodiment, the lower end portion of the wire 40 is fixed to the side sill 8. As shown in FIG. 6, the position of the side sill 8 to which the lower end portion of the wire 40 is fixed is taken as a fixed position P1. On the other hand, it is assumed that the wire 40 is fixed to the pillar 20. In this case, the position of the pillar 20 (pillar inner 22) to which the lower end portion of the wire 40 is fixed is defined as a fixed position P2.

  At the time of a collision, the fixed position P2 of the wire 40 moves to the side of the compartment 2 with the deformation of the pillar 20 due to the collision, and therefore, the force by which the wire 40 pulls the insertion hole 32 to the outer side Weaker than when fixed to P1.

  On the other hand, at the time of a collision, the side sill 8 protrudes less toward the compartment 2 than the pillar 20. In other words, the fixed position P1 of the wire 40 has a small amount of movement toward the passenger compartment 2 side. Therefore, the force by which the wire 40 pulls the insertion hole 32 to the outside of the vehicle compartment is stronger than when the wire 40 is fixed at the fixing position P2.

  As described above, when the lower end portion of the wire 40 is fixed to the side sill 8, the insertion hole 32 can be broken by the wire 40, and the pillar trim 30 can be crushed more reliably. The side sill 8 is an example of a frame (frame member) of a vehicle body, and the lower end portion of the wire 40 may be fixed to a frame other than the side sill 8.

  When the wire 40 is insert-molded into the pillar trim 30, the pillar trim can be more firmly fixed to the pillar 20 via the wire 40.

  Further, in the pillar trim structure 10 according to the present embodiment, the upper opening of the insertion hole 32 is open at the upper end surface of the pillar trim 30. With such a configuration, at the time of a collision, the upper end side of the wire 40 breaks the insertion hole 32 from the top of the pillar trim 30. On the other hand, the lower opening of the insertion hole 32 is open at the side surface on the pillar inner 22 side at a height substantially equal to the seat surface of the seat 3. With this configuration, at the time of a collision, the lower end side of the wire 40 breaks the insertion hole 32 from the position of the pillar trim 30 facing the occupant's waist.

  According to the pillar trim structure 10 having such an insertion hole 32, the upper portion of the pillar trim 30 near the trunk of the occupant is crushed more securely, and the lower portion of the pillar trim 30 near the waist of the occupant is crushed more reliably. The clearance with the passenger can be expanded more reliably.

  Although the embodiment of the present invention has been described, of course, the present invention is not limited to the above-described embodiment, and additions, omissions, replacements, and additions of configurations can be made without departing from the spirit of the present invention. Other modifications are possible.

  In the above-described embodiment, the example in which the pillar trim structure of the present invention is applied to the center pillar has been described. However, the present invention is not limited to this. The present invention can also be applied to, for example, a rear pillar. Moreover, although the pillar trim 30 was the structure which is provided with the front part 33 and the side part 34, and cross-sectional shape is trapezoidal shape, it is not limited to this, this invention is applicable also to arbitrary shapes.

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Room, 3 ... Seat, 8 ... Side sill, 10 ... Pillar trim structure, 20 ... Pillar, 21 ... Pillar outer, 22 ... Pillar inner, 30 ... Pillar trim, 31 ... Bending part, 32 ... Insertion hole, 40 ... wire (cord)

Claims (5)

A pillar trim attached to the pillar,
An insertion hole provided in the pillar trim and extending in the vertical direction of the passenger compartment;
A pillar trim structure comprising: a cord whose both ends are fixed to a vehicle body via the insertion hole. The pillar trim structure according to claim 1,
The pillar trim has a bending portion in which both end portions in the longitudinal direction of the vehicle are bent outward in the vehicle width direction,
The pillar trim structure characterized in that the insertion hole is provided in the bent portion. The pillar trim structure according to claim 2,
The insertion hole has a cross-sectional shape formed in a wedge shape,
A pillar trim structure characterized in that a tip portion constituting the wedge shape is formed toward the bent portion. In the pillar trim structure according to any one of claims 1 to 3,
The lower end portion of the cord is fixed to a frame of a vehicle body. In the pillar trim structure according to any one of claims 1 to 4,
The said strip is insert-molded in the said pillar trim. The pillar trim structure characterized by the above-mentioned.

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