JP2016037269A - Interior member for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the safety of an occupant by preventing deformation and damage of the interior member of a center pillar in the event of a lateral collision of a vehicle.SOLUTION: A thick plate part 41 is formed on a center pillar lower trim 40. The thick plate part 41 overlaps a part of a seat belt retractor 30 in a side view of a vehicle 1. Lattice-like ribs 42 oriented toward the seat belt retractor 30 of the thick plate part 41 is provided on the rear surface of the center pillar lower trim 40. A first rib line 42A of the lattice-like ribs 42 inclines at an angle substantially equal to the angle of the inclination of the retractor 30 with respect to the vertical direction of the vehicle 1. Each rib of the first rib line 42A and each rib of a second rib line 42B are orthogonal to each other. The lattice-like ribs 42 are formed so as to be orthogonal to the seat belt retractor 30.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an interior member attached to a vehicle interior side of a center pillar of a vehicle.

  Some vehicles such as automobiles have an interior member attached to the interior side of the center pillar. For example, Patent Document 1 discloses a garnish attached to the inner panel side of the center pillar. The garnish is provided with an upper impact absorbing member and a lower impact absorbing member. These impact members have a plurality of ribs extending in the vehicle width direction, and a seat belt passage is vertically formed in the center of the plurality of ribs. The seat belt is movably inserted into the seat belt path. Patent Document 2 discloses a pillar garnish lower that covers the lower half of the center pillar from the vehicle interior side. An open portion is formed in the upper portion of the pillar garnish lower, and a cutout portion for escaping the seat belt retractor is formed in the lower portion. The seat belt unwound from the seat belt retractor is inserted between the center pillar and the pillar garnish lower, pulled out from the opening portion, and inserted into a ring attached to the center pillar.

Japanese Patent No. 3594145 JP 2006-327339 A

  In the structure described in Patent Document 1, since the retractor is disposed below the seat belt path formed in the shock absorbing member, when the vehicle collides sideways and receives impact energy from the side, the center pillar is greatly displaced. The retractor comes into contact with the lower impact absorbing member. As a result, the lower impact absorbing member and the garnish may be damaged, and the retractor may be exposed from the damaged part of the garnish or may protrude into the vehicle interior. Further, the pillar garnish lower of Patent Document 2 is provided with a seat belt retractor at a notch portion thereof. Therefore, when a vehicle collides with a side and receives impact energy from a side portion and the center pillar is greatly displaced, The take-off device contacts the pillar garnish lower. As a result, the pillar garnish lower may be damaged, and the seat belt retractor may be exposed from the damaged portion or may protrude into the vehicle interior. In the configurations disclosed in Patent Literature 1 and Patent Literature 2, when the vehicle collides sideways, measures are taken so that the lower impact absorbing member and the damaged portion of the garnish, the exposed retractor, and the seat belt retractor do not contact the occupant. Need to do.

  The present invention has been made in view of such a situation, and an object of the present invention is to prevent deformation and breakage of the interior member of the center pillar at the time of a side collision of the vehicle and to ensure the safety of the occupant.

  In order to solve the above-described problems of the prior art, the present invention provides a vehicle disposed so as to cover a center pillar of a vehicle and a seat belt retractor disposed on the inner side of the vehicle than the center pillar. In the interior member, a thick plate portion having a plate thickness larger than the plate thickness of the other region is formed, and the thick plate portion overlaps a part of the seat belt retractor in a side view of the vehicle.

  The thick plate portion overlaps the portion of the seat belt retractor that is displaced toward the passenger compartment when a side collision of the vehicle occurs in a side view of the vehicle.

  The seat belt retractor is attached to the vehicle body at two attachment points having relatively different fixing strengths in the vertical direction, and the thick plate portion has a fixed strength of the two attachment points of the seat belt retractor. It overlaps with the peripheral part of the low mounting location in the side view of the vehicle.

  A plurality of ribs arranged in a lattice shape are provided on the back surface side of the thick plate portion facing the seat belt retractor side.

  The plurality of ribs may be integrally formed on the back surface.

  Further, a pedestal may be disposed on the back surface of the thick plate portion, and the plurality of ribs may be disposed on a surface of the pedestal facing the seat belt retractor side. The pedestal includes an abutting portion that abuts against the back surface of the thick plate portion, and a thin-walled portion in which a plate thickness in the vehicle width direction is smaller than the corresponding contacting portion, and a predetermined gap is formed between the back surface and the pedestal. The thin portion overlaps the seat cushion in a side view of the vehicle.

  As described above, the built-in member of the vehicle according to the present invention is formed with a thick plate portion that is thicker than other regions, and this thick plate portion is a part of the seat belt retractor in a side view of the vehicle. It overlaps with the department. Therefore, even if the seat belt retractor contacts the interior member at the time of a side collision of the vehicle, it is avoided that the interior member is cracked and damaged by being received by the thick plate portion. As a result, the seat belt retractor is not exposed or protrudes into the vehicle interior, so that the safety of the passenger is ensured.

  By overlapping the thick plate part of the interior member with the part of the seat belt retractor that is displaced toward the passenger compartment when the vehicle collides with the vehicle in a side view, the above-described cracking of the interior member at the time of the side collision can be ensured. Can be avoided.

  In addition, when the seat belt retractor is attached to the vehicle body at two attachment points with relatively different fixing strengths in the vertical direction, the peripheral part of the attachment point with low fixing strength among the two attachment points of the seat belt retractor And the following effects are acquired by overlapping the thick board part of an interior member by the side view of a vehicle. When a large load is input from the side surface, there is a high possibility that the attachment location lower than the attachment location with high fixing strength of the seat belt retractor is damaged. Therefore, at the time of a side collision of the vehicle, the mounting portion with high fixing strength of the seat belt retractor is maintained, the mounting portion with low fixing strength is damaged, and the surrounding members fall down to the interior member side Sometimes. However, by forming the above-described thick plate portion, the fall of the interior member can be received by the thick plate portion, and damage to the interior member and exposure and protrusion of the seat belt retractor can be prevented.

  By providing a plurality of ribs arranged in a lattice pattern on the back surface side of the thick plate portion facing the seat belt retractor side, the surface rigidity of the thick plate portion can be further increased. Therefore, even if the seat belt retractor contacts the interior member at the time of a side collision of the vehicle, the interior member can be more reliably prevented from being damaged.

  If it is set as the structure which forms a some rib on the back surface of a thick plate part integrally, the increase in a number of parts can be suppressed.

  By providing a pedestal on the back surface of the thick plate portion and arranging a plurality of ribs on the surface of the pedestal facing the seat belt retractor side, the plate thickness of the pedestal is added to the plate thickness of the thick plate portion. Damage to the interior member due to the contact of the seat belt retractor at the time of a side collision is more reliably prevented.

  Further, a thin portion in which a predetermined gap is formed between a contact portion that contacts the back surface of the thick plate portion on the pedestal, and a plate thickness in the vehicle width direction is smaller than that of the contact portion, and the back surface of the thick plate portion. The following effects are obtained by arranging the thin-walled portion so as to overlap the seat cushion in a side view. The thin part is thinner than the contact part, and a gap is formed between the thin part and the back of the thick part. Has been. Therefore, even if the seat belt retractor comes into contact with the side impact of the vehicle and the thin part of the pedestal buckles and the interior member is damaged, the displacement and protrusion of the seat belt retractor and the interior member toward the passenger compartment are the seat cushion. It is shielded by.

1 is a perspective view showing a part of a vehicle according to an embodiment of the present invention from the passenger compartment side. It is a disassembled perspective view which shows the attachment structure of the seatbelt and retractor with respect to a center pillar. It is a perspective view which expands and shows the attachment structure of a retractor. It is a figure which shows the surface which faces the vehicle interior side of a center pillar lower trim. It is a figure which shows the surface which faces the center pillar side of a center pillar lower trim. It is a figure which shows the relative positional relationship of the thick-plate part of a center pillar lower trim, a grid | lattice-like rib, and a retractor. FIG. 7 is a cross-sectional view showing the center pillar lower trim and the retractor cut along the line AA in FIG. 6. It is a perspective view which shows the base and lattice-like rib of a modification. It is a figure which shows the relative positional relationship of the base provided in a center pillar lower trim in a modification, and a seat cushion.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 is a perspective view showing a part of a vehicle according to an embodiment of the present invention from the passenger compartment side, and the vicinity of the center pillar is shown in an exploded manner. A seat belt 20 for a front seat occupant and a metal retractor 30 that winds up the seat belt 20 are disposed on the passenger compartment side of the center pillar 10 of the vehicle 1. The center pillar lower trim (interior member) 40 is disposed below the center pillar 10 so as to cover the seat belt 20 and the retractor 30.

  FIG. 2 is an exploded perspective view showing the attachment structure of the seat belt 20 and the retractor 30, and FIG. 3 is an enlarged perspective view showing the attachment structure of the retractor 30. A shoulder anchor 21 is attached to the upper part of the center pillar 10, and a retractor 30 is attached to the lower part. The seat belt 20 passes through the shoulder anchor 21 and is wound around the retractor 30 while being supported by the shoulder anchor 21.

  The retractor 30 has a metal holder 31 and a bobbin 32. The holder 31 has an insertion part 33 and an upper attachment part 34 through which the bobbin 32 is inserted. The bobbin 32 is supported by the holder 31 in a state where the bobbin 32 is inserted through the insertion portion 33. The upper attachment portion 34 of the holder 31 is disposed on the upper portion of the side surface 33 </ b> A on the passenger compartment side of the insertion portion 33. The upper mounting portion 34 has a passenger compartment side surface 34A that is fixed to the side surface 33A and extends in the vertical direction, a protrusion portion 34B that protrudes toward the pillar 10 side, and a pillar side side surface 34C that extends in the vertical direction. The projecting portion 34B has a pair of extending portions 34Ba and 34Bb that extend in the vehicle width direction and are positioned at a predetermined interval along the vertical direction, and a connecting portion 34Bc that connects these extending portions. doing. The extending portion 34Ba is continuous with the passenger compartment side surface 34A and intersects at a substantially right angle. That is, the passenger compartment side surface 34A and the extension 34Ba form a corner 34D that faces the center pillar lower trim 40 side. The extending portion 34Bb is continuous with the pillar side surface 34C. The seat belt 20 is inserted through a slit formed in the extending portion 34Ba.

  The retractor 30 is attached to the vehicle body of the vehicle 1 at two locations in the vertical direction. The upper side of the retractor 30 is attached to the pillar 10 by a screw 50 that passes through a hole 341 formed in the pillar side surface 34C of the upper attachment portion 34. The lower side of the retractor 30 is attached to a bracket 61 fixed to the side sill 60 of the vehicle by a bolt 51 that passes through a hole 342 formed in the passenger compartment side surface 33A. The attachment by the bolt 51 on the lower side of the retractor 30 is fixed with sufficient strength so that it does not fall off when the vehicle collides from the side as well as when the vehicle travels. On the other hand, the attachment of the retractor 30 with the screw 50 is intended to prevent the retractor 30 from vibrating due to vibration during traveling of the vehicle and generating abnormal noise. That is, the upper side of the retractor 30 only needs to be fixed with a holding force that can prevent vibration during normal driving of the vehicle, and the fixing strength is lower than the fixing strength of the lower side of the retractor 30. .

4 is a plan view of the front surface of the center pillar lower trim 40, and FIG. 5 is a plan view of the back surface of the center pillar lower trim 40. FIG. In this specification, the surface facing the vehicle interior side of the center pillar lower trim 40 attached to the center pillar 10 is defined as the front surface, and the surface facing the center pillar 10 side is defined as the back surface. A thick plate portion 41 is formed at the lower end portion of the center pillar lower trim 40.
The plate thickness (dimension in the vehicle width direction) of the thick plate portion 41 is larger than the plate thickness in other regions of the center pillar lower trim 40. Further, as shown in FIG. 5, a plurality of ribs (hereinafter referred to as lattice-shaped ribs) 42 arranged in a lattice shape are integrally formed on the thick plate portion 41 on the back surface of the center pillar lower trim 40. The grid-like ribs 42 may be formed over substantially the entire area of the thick plate portion 41.

  FIG. 6 is a diagram schematically showing the positional relationship between the retractor 30, the thick plate portion 41 of the center pillar lower trim 40, and the grid-like ribs 42, and FIG. 7 is an arrow along line AA in FIG. 6. FIG. FIG. 6 shows the center pillar 10 from the passenger compartment side. In order to clearly show the aspect of the lattice-like rib 42 of the center pillar lower trim 40 and to clarify the positional relationship with the retractor 30, The grid-like ribs 42 are represented by solid lines, and the retractor 30 is simplified and shown by a two-dot chain line. Further, in FIG. 7, the retractor 30 is schematically illustrated and the seat belt 20 is omitted in order to clearly show the positional relationship between the thick plate portion 41 and the lattice-like rib and the 42 retractor 30. The thick plate portion 41 of the center pillar lower trim 40 overlaps a part of the retractor 30 in a side view of the vehicle. Specifically, the thick plate portion 41 substantially overlaps the holder 31 and the bobbin 32 of the retractor 30 in a side view of the vehicle, and overlaps the corner portion 34D of the upper attachment portion 34 of the holder 31.

  The grid-like ribs 42 are constituted by a first rib row 42A of the retractor 30 and a second rib row 42B that intersects the first rib row 42A. The first rib row 42A extends in parallel with a corner portion 34D formed by the passenger compartment side surface 34A of the upper mounting portion 34 and the extending portion 34Ba. In other words, the first rib row 42 </ b> A is inclined at an angle substantially equal to the inclination angle of the retractor 30 with respect to the vertical direction of the vehicle 1. Each rib of the first rib row 42A and each rib of the second rib row 42B are orthogonal to each other. Further, the ribs of the first rib row 42A are arranged at equal intervals in the vertical direction, and the ribs of the second rib row 42B are arranged at equal intervals in the longitudinal direction of the vehicle. As shown in FIG. 7, the grid-like ribs 42, that is, the first and second rib rows 42 </ b> A and 42 </ b> B are erected on the thick plate portion 41 so as to be orthogonal to the seat belt retractor 30.

  According to the present embodiment, the thick plate portion 41 of the center pillar lower trim 40 is overlapped with the holder 31 and the bobbin 32 of the retractor 30 in a side view of the vehicle, and the upper mounting portion 34 of the holder 31 is seen in the side view of the vehicle. The corner portion 34D also overlaps. With this configuration, the vehicle 1 collides with the side, the upper mounting portion by the screw 50 having a lower fixing strength than the lower mounting portion of the retractor 30 by the bolt 51 is damaged, and the upper portion of the retractor 30 is in the passenger compartment. When the corner portion 34 </ b> D of the holder 31 falls down to the back side of the center pillar lower trim 40, the load can be received by the thick plate portion 41. Therefore, it is possible to prevent the center pillar lower trim 40 from being broken and the corner portion 34D from being exposed or protruding to the vehicle interior side.

  Further, lattice-like ribs 42 are formed on the thick plate portion 41, and the surface rigidity of the thick plate portion 41 is further increased. Therefore, when the side collision of the vehicle 1 occurs, if the upper portion of the retractor 30 is inclined toward the vehicle interior side and the corner portion 34D falls into the lattice-like rib 42 as described above, concentration of stress can be avoided. Further, it is possible to more reliably prevent the center pillar lower trim 40 from cracking.

  The first rib row 42A of the grid-like rib 42 is provided so as to extend in parallel with the corner 34D, the second rib row 42B is orthogonal to the first rib row 42A, and the first and second rib rows 42A and 42B are formed so as to be orthogonal to the seat belt retractor 30. Accordingly, when the corner 34D falls down, the stress generated by the contact of the corner 34D can be more reliably dispersed.

  In the present embodiment, the thick plate portion 41 is formed so as to overlap substantially the entire holder 31 and bobbin 32 of the seat belt retractor 30 in a side view of the vehicle 1, but is not limited thereto. The holder 31 may be formed so as to partially overlap the region above about 2/3 in the vertical direction.

  Moreover, in this embodiment, although the seatbelt retractor 30 which has the structure and attachment aspect shown to FIG. 2, 3 is provided, it does not restrict to this. Even when a retractor different from the structure shown in FIGS. 2 and 3 is used, at a side collision of the vehicle, a portion having a relatively low fixing strength for mounting to the vehicle is damaged and falls into the vehicle interior side. The relative positional relationship between the seat belt retractor and the center pillar lower trim 40 may be configured so that the seat belt retractor is received by the thick plate portion 41 described above.

  FIG. 8 is a perspective view showing a modification of the configuration in which the grid-like ribs are provided. The pedestal 70 is a substantially rectangular plate-like member, and has a contact portion 71 and a thin portion 72. The pedestal 70 is attached to the center pillar lower trim 40 by fixing the contact portion 71 in surface contact with the back surface of the thick plate portion 41 of the center pillar lower trim 40. The plate thickness of the contact portion 71 (the length in the vehicle width direction when the pedestal 70 is attached to the back surface of the thick plate portion 41) is greater than the plate thickness of the thin portion 72. Furthermore, the thin-walled portion 72 is formed so that its plate thickness gradually decreases from the boundary portion with the contact portion 71 toward the end portion on the opposite side to the boundary portion. In other words, the pedestal 70 is arranged on the one edge side so that the thickness of one edge side of the pair of parallel edges of the rectangular plate-shaped member is smaller than the thickness of the edge part on the other edge side. It has a shape in which a part (part indicated by a two-dot chain line in FIG. 8) is cut out.

  The lattice-like rib 43 has substantially the same configuration as the lattice-like rib 42 described above, and has a first rib row 43A and a second rib row 43B. The grid-like ribs 43 are erected on the pedestal 70 so as to face the retractor 30 side.

  As shown in FIG. 9, in the base 70, the contact portion 71 is positioned on the upper side in the vehicle vertical direction, the thin portion 72 is positioned on the lower side, and at least the thin portion 72 is the vehicle on the back surface of the thick plate portion 41. It arrange | positions so that it may overlap with the seat cushion 80 by side view. Therefore, a predetermined gap is formed between the thin portion 72 and the back surface of the thick plate portion 41. Further, the pedestal 70 is arranged such that the first rib row 43A extends in parallel with the above-described corner portion 34D of the upper mounting portion 34. The pedestal 70 has a shape and a size that can cover substantially the entire region of the thick plate portion 41 of the center pillar lower trim 40 in a side view of the vehicle 1. In other words, the grid-like ribs 43 are located over substantially the entire area of the thick plate portion 41.

  According to this modification, the base 70 having a predetermined plate thickness is disposed on the thick plate portion 41 of the center pillar lower trim 40. Therefore, at the time of a side collision of the vehicle 1, the upper mounting portion of the seat belt retractor 30 is damaged, and the corner portion 34 </ b> D of the upper mounting portion 34 of the holder 31 falls down on the back side of the center pillar lower trim 40 to form a lattice shape. When contacting the rib 43, the center pillar lower trim 40 can be more reliably prevented from cracking because it is received by the thick plate portion 41 and the pedestal 70.

  Further, the thickness of the thin portion 72 of the pedestal 70 is smaller than the thickness of the contact portion 71. Therefore, when the vehicle 1 collides with the side and the corner portion 34D of the upper mounting portion 34 of the holder 31 contacts the lattice-like rib 43 as described above, and a load is applied from the direction intersecting the pedestal 70, the thin portion 72 is easily buckled, and the contact portion 71 is not easily buckled. In this modification, the pedestal 70 is disposed such that the thin portion 72 overlaps the seat cushion 80 in a vehicle side view. That is, even if the contact portion 71 buckles at the time of a side collision of the vehicle 1, it is hidden by the seat cushion 80, so that a damaged member is prevented from contacting the occupant.

  While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Center pillar 20 Seat belt 30 Retractor 40 Center pillar lower trim 41 Thick plate part 42, 43 Grid-like rib 50 Screw 51 Bolt 60 Side sill 61 Bracket 70 Base 80 Seat cushion

Claims (6)

In an interior member of a vehicle that is disposed so as to cover a center pillar of the vehicle and a seat belt retractor that is disposed on the inner side of the vehicle than the center pillar,
A thick plate portion having a plate thickness larger than the plate thickness of another region is formed, and the thick plate portion overlaps a part of the seat belt retractor in a side view of the vehicle. Interior material.   2. The vehicle interior member according to claim 1, wherein the thick plate portion overlaps with a portion of the seat belt retractor that is displaced toward a passenger compartment when a side collision of the vehicle occurs in a side view of the vehicle. The seat belt retractor is attached to the vehicle body at two attachment points having relatively different fixing strengths in the vertical direction,
The said thick board part has overlapped with the peripheral part of the attachment location with low fixed strength of the said 2 attachment locations of the said seatbelt retractor by the side view of a vehicle. Vehicle interior parts.   The interior of the vehicle according to any one of claims 1 to 3, wherein a plurality of ribs arranged in a lattice shape are provided on a back surface side of the thick plate portion facing the seat belt retractor. Element.   The vehicle interior member according to claim 4, wherein the plurality of ribs are integrally formed on the back surface. A pedestal is disposed on the back surface of the thick plate portion, the pedestal has a contact portion that contacts the back surface of the thick plate portion, and a plate thickness in the vehicle width direction is smaller than the corresponding contact portion, A thin portion in which a predetermined gap is formed between the back surface, and the thin portion overlaps with the seat cushion in a side view of the vehicle,
The vehicle interior member according to claim 4, wherein the plurality of ribs are disposed on a surface of the base that faces the seat belt retractor side.

Images