JP5435554B2 - Trunk through part structure of seat back - Google Patents

Description

The present invention
The present invention relates to a trunk through portion structure of a seat back in which an opening for communicating a passenger compartment and a trunk room behind the passenger compartment is formed in a seat back, and a lid that can open and close the opening is provided.

  As an example of the trunk through portion structure, there is a technique disclosed in Patent Document 1. In this technique, an engagement hole is formed at the upper end of the lid, and an engagement claw that engages with the engagement hole in the closed state of the lid is formed at the peripheral edge of the opening of the seat back, and is closed with the peripheral edge of the opening. An elastic member to be compressed at the upper end portion of the lid is provided at the peripheral edge portion of the opening, whereby the lid is urged in the opening direction by the elastic member to improve the operability when the lid is opened and closed.

Japanese Utility Model Publication No. 5-46553

According to the conventional structure, since the compressed elastic member is interposed between the peripheral edge of the opening and the upper end of the lid in the closed state of the lid, the peripheral edge of the opening corresponding to the upper end of the lid The sealing property between the upper end portion of the lid can be improved.
However, since the peripheral edge of the other opening and the peripheral edge of the lid are in direct contact with each other or face each other, a gap is generated between the peripheral edge of the other opening and the peripheral edge of the lid. It was easy for sound to enter the passenger compartment from the gap.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a seat-back trunk through that can prevent sound from entering the passenger compartment from the trunk room and improve the quietness of the passenger compartment. This is in providing a partial structure.

The feature of the present invention is that
An opening is formed in the seat back to allow communication between the passenger compartment and the trunk room behind the passenger compartment,
Setting the openable lid said opening,
A structure of a trunk through portion of a seat back in which an opening trim having a seal portion pressed against a peripheral portion of the lid is attached to the peripheral portion of the opening over the entire periphery ,
A rib is erected toward the lid on the radially outer side of the opening from the opening,
The opening trim has a mounting base formed in a U-shaped cross section,
By attaching the mounting base to the rib, the opening trim is positioned on the radially outer side of the opening relative to the opening, and the seal portion is attached to the mounting base of the opening trim. Provided,
The seal portion is configured so that the peripheral portion of the lid is pressed.

According to this configuration, since the opening trim having the seal portion pressed against the peripheral edge of the lid is attached to the peripheral edge of the opening over the entire periphery, the gap between the peripheral edge of the lid and the peripheral edge of the opening is provided. can be sealed over the entire periphery of the sealing property can be sufficiently improved, Ru can be reliably prevented from entering the sound to the passenger compartment from the trunk room.
In the present invention,
The lid is formed in a box shape,
A flange is formed over the entire circumference of the lid,
A stepped surface facing the flange is formed at the peripheral edge of the opening,
The rib rises from the step surface toward the flange ,
The sealing portion of the opening trim can be configured to be pressed against the flange.

In the present invention,
When the sealing portion of the opening trim is formed in the shape of a cross section, and the back surface of the seal portion is pressed against the peripheral edge of the lid, the sealing portion When the tip end is configured to bent with respect to the base end side, Ru can be obtained the following effects.

When the lid is closed, the peripheral portion of the lid presses the back surface of the seal portion. Since the seal part is formed in the shape of a cross section, the distal end bends with respect to the proximal end with the folding point as the center. Thereby, even if the pressing force by the peripheral part of a lid is small, the deflection amount of a seal part can be ensured and a sealing performance can fully be improved. Also it is possible to simplify the structure of the seal portion, Ru can be cheaper the molding cost of the opening trim.

In the present invention,
A rib that is attached by fitting an attachment base formed in a U-shaped cross section of the opening trim is provided over the entire periphery of the periphery of the opening,
Wherein such opening trim is positioned radially outward side of the opening than the opening, when there was set a position of the rib with respect to said opening, Ru can be obtained the following effects.

When the luggage (contained items) is taken out from the trunk room to the passenger compartment through the opening, it is possible to prevent the luggage from being caught on the mounting base of the opening trim, and the opening trim is released from the rib (released from the outside). Ru can be prevented).

In the present invention,
While forming the opening in the resin molded product provided in the seat back, the rib is erected on the periphery of the opening of the resin molded product,
A plurality of return portions for preventing the opening trim mounting base from coming off are dispersedly disposed on the rib,
If the mold part that forms the concave side of the return part is die-cut on the side opposite to the rising direction of the rib, and a plurality of die-cutting holes are formed on the peripheral edge of the opening, Can play. (Claim 4)

  The mold does not need to be a slide mold, the mold can be simplified, and the cost required for the mold can be reduced. Further, since the die-cut hole and the return portion are not visible when the opening trim mounting base is mounted on the rib, the appearance is not impaired. And the fall of airtightness can be suppressed by attaching the attachment base part of an opening trim to a rib. (Claim 4)

  ADVANTAGE OF THE INVENTION According to this invention, the intrusion of the sound from a trunk room to a passenger compartment can be prevented, and the trunk back part structure of the seat back which can improve the quietness in a passenger compartment was able to be provided.

Perspective view of the rear seat with the armrest lying down and the lid open Rear view of the rear seat with the armrest lying down and the lid closed Trunk through part structure perspective view XX sectional view of FIG. (A) is a sectional view of the opening trim (b) is a sectional view of the opening trim of the comparative example Cross-sectional view of trunk-through structure with lid closed Cross-sectional view of trunk through structure with lid open (cross-sectional view of the portion where the return portion is formed on the rib) Sectional view showing the mold

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a pair of left and right asymmetric seat cushions 1 for receiving the occupant's buttocks and thighs and a pair of left and right asymmetry for receiving the upper body (back) of the seated person The rear seats 4 for automobiles are configured by providing the seat backs 2 and 3.

  The left seat back 2 is set wider than the right seat back 3 and includes an armrest 5 on the right side. The armrest 5 is swingable around the lower horizontal axis, and can be switched between a lying posture that falls to the front Fr of the vehicle and catches the occupant's arm and a standing posture that catches the back of the occupant in the center seat. Has been.

  That is, the left seat back 2 is configured to be able to receive the backs of the left seat passenger and the center seat passenger. The armrest 5 in the lying posture is placed and supported on the seat cushion 1, and the armrest 5 in the standing posture is accommodated in a vertically long recess 6 that is open on the vehicle front side Fr provided on the back portion of the left seat back 2. . The recess 6 is formed in the bezel 19 (see FIG. 4).

  The left and right seat backs 2 and 3 include a seat back pad 7 made of soft foamed urethane, a metal frame 8 (see FIG. 4) on which the seat back pad 7 is mounted, and a skin material 34 covering the seat back pad 7. And each. The frames 8 of the left and right seat backs 2 and 3 are integrally formed, and the seat back pads 7 of the left and right seat backs 2 and 3 are integrally foam-molded.

  Each seat back pad 7 includes a center portion 9 and a pair of vertically long left and right side support portions 10 that protrude from the left and right sides of the center portion 9 to the vehicle front side Fr. A headrest 11 is provided at the upper end of the center portion 9. It is connected. The headrest 11 for the passenger in the center seat is connected to the seat back pad portion 7C (see FIG. 3) above the recess 6. The side support unit 10 holds the occupant's upper body in the width direction (left-right direction).

  The armrest 5 includes an armrest pad made of soft urethane foam, a metal frame on which the pad is mounted, and a skin material covering the pad.

[Seat-back trunk-through structure]
As shown in FIGS. 3 to 7, the bottom wall 6 </ b> T of the recess 6 is formed with a vertically long rectangular opening 16 that allows the passenger compartment 14 to communicate with the trunk room 15 behind the passenger compartment 14, and the opening 16 can be freely opened and closed. A lid 17 is provided. By opening the lid 17, the luggage can be taken into and out of the passenger compartment 14 through the opening 16 without opening the trunk lid, and the opening 16 can be closed when the armrest 5 is used. The bottom wall 6T and the peripheral wall 16N of the recess 6 are formed in the bezel 19. The bezel 19 and the lid 17 are resin molded products.

  The lid 17 includes a box-shaped rear lid 17U having an open front Fr with a flange 20 (corresponding to a peripheral edge of the lid 17) formed on the entire periphery thereof, and an entire periphery folded to a vehicle rear side Rr. The bent lid-shaped front lid 17M is overlapped in the vehicle front-rear direction so that the bent portion 21 of the front lid 17M abuts the flange 20 of the rear lid 17U from the vehicle front side Fr. .

  A lock mechanism 22 that locks the lid 17 in a closed state is provided between the upper end of the lid 17 and the peripheral wall 16N on the upper side of the recess 6 so as to be unlockable. That is, as shown in FIG. 3, a horizontally long engagement protrusion 23 that protrudes upward is formed at the upper end of the flange 20 of the lid 17, and the engagement protrusion 23 is engaged with the peripheral wall 16 </ b> N on the upper side of the recess 6. A horizontally long engaging recess 24 is formed. The engagement protrusion 23 engages with the engagement recess 24, the lock mechanism 22 is locked, and the engagement is released, so that the lock mechanism 22 is unlocked.

When a passenger in the rear seat wants to take out a baggage having a size passing through the opening 16 accommodated in the trunk room 15, the armrest 5 accommodated in the recess 6 is swung to the vehicle front side Fr and set to the lying posture. As shown in FIG. 2, when the armrest 5 is set to the lying posture, the concave portion 6 is exposed. Therefore, the lock mechanism 22 is released and the lid 17 is swung to the vehicle front side Fr to open the opening as shown in FIG. 16 is exposed.
As a result, the occupant can insert his / her hand through the opening 16 into the trunk room 15 and take out the luggage he / she wants to remove to the occupant compartment 14 side. After the removal, the lid 17 is closed again and the opening 16 is closed, so that the trunk room 15 and the passenger compartment 14 can be separated by the seat back 2 while the armrest 5 can be used.

The lid 17 is formed in a box shape and has a certain thickness. However, since the lid 17 is a hollow resin molded product, its weight is light, and the contact surface between the peripheral edge portion 16S of the opening 16 and the flange 20 of the lid 17. The airtightness between them is low, and a gap is generated between the peripheral edge portion 16S of the opening 16 and the flange 20 of the lid 17, and sound can easily enter the passenger compartment from this gap.
Therefore, as means for filling the gap, an opening trim 28 having a seal portion 26 pressed against the flange 20 of the lid 17 is attached to the peripheral edge portion 16S of the opening 16 over the entire circumference.

  Thus, even when the gap 6 is closed and the armrest 5 is in the lying posture and the recess 6 is exposed, high airtightness can be secured, and the quietness in the passenger compartment 14 can be improved. is there.

[Structure of opening trim 28]
As shown in FIG. 5A, the opening trim 28 includes a mounting base portion 27 having a U-shaped cross section and a seal portion 26 rising from the mounting base portion 27. The seal portion 26 is formed in a shape of a cross section that opens to the radially outer side of the opening 16, and is configured such that the back surface 26 </ b> H of the seal portion 26 is pressed against the flange 20 of the lid 17.

  In the cross section of the seal portion 26, the bending point 26P of the seal portion 26 is located closer to the mounting base 27 than the longitudinal center of the seal portion 26, and the seal portion 26A on the distal end side is closer to the seal portion 26B on the proximal end side. Is also set longer. The tip of the seal part 26 bulges out in a circular cross section. A structure in which the seal portion 26 is formed in a cross-sectional shape may be used.

  The opening trim 28 is made of a rubber-like elastic body, and a metal insert member (not shown) having a U-shaped cross section is built in the mounting base 27. A plurality of lips 29 protrude from the inner surfaces of both side walls of the mounting base 27.

When the lid 17 is closed, the flange 20 of the lid 17 presses the back surface 26 </ b> H of the seal portion 26 of the opening trim 28. In the seal portion 26, the seal portion 26A on the distal end side is bent with respect to the seal portion 26B on the proximal end with the bending point 26P as the center.
Since the lid 17 is a hollow resin molded product and is lightweight, for example, as shown in FIG. 5B, when the seal portion 26 of the opening trim 28 is formed in a circular ring shape in cross section, the seal portion 26 is formed. It is hard to bend (it is hard to be compressed).
On the other hand, according to the present invention, since the seal portion 26 of the opening trim 28 is formed in the shape of a cross section, even if the pressing force by the flange 20 is small, the deflection amount of the seal portion 26 can be ensured. This can sufficiently improve the sealing performance. And the load at the time of locking the lid 17 in a closed state can be made small. Further, the structure of the seal portion 26 can be simplified, and the molding cost of the opening trim 28 can be reduced.

  As shown in FIGS. 4, 6, and 7, a rib 30 is attached to the peripheral edge portion 16 </ b> S of the opening 16 so as to be fitted around a fitting base portion 27 having a U-shaped section of the opening trim 28. It is set up. Further, the position of the rib 30 with respect to the opening 16 is set so that the opening trim 28 is located on the radially outer side of the opening 16 with respect to the opening 16.

  As a result, it is possible to prevent the luggage from being caught on the mounting base 27 of the opening trim 28 when the luggage (contained matter) is taken out from the trunk room 15 through the opening 16 to the passenger compartment 14 side. It is possible to prevent the deviation from 30.

As shown in FIG. 7, a plurality of return portions 31 for preventing the attachment base 27 of the opening trim 28 from coming off are distributed on the top of the rib 30 so that the attachment base 27 is not easily removed from the rib 30. That is, the plurality of return portions 31 are positioned at intervals in the circumferential direction of the rib 30.
Further, as shown in FIGS. 7 and 8, the first mold portion 32A (corresponding to the mold portion) forming the concave surface 31M side of the return portion 31 is die-cut to the side A opposite to the rising direction of the rib 30. A plurality of punching holes 33 (see FIG. 7) are formed in the peripheral edge portion 16S of the opening 16. Reference numeral 32 denotes a first mold, 35 denotes a second mold, and 36 denotes a cavity portion for forming a rib portion having the return portion 31.

  Thereby, it is not necessary to change the mold to a slide mold, the mold can be simplified, and the cost required for the mold can be reduced. The die punching hole 33 and the return portion 31 are not visible when the attachment base portion 27 of the opening trim 28 is attached to the rib 30, so that the appearance is not impaired. Further, by attaching the attachment base portion 27 of the opening trim 28 to the rib 30, it is possible to suppress a decrease in airtightness.

2 Seat back 14 Crew compartment 15 Trunk room 16 Opening 16S Opening peripheral edge 17 Lid 19 Resin molded product (bezel)
20 Perimeter of the lid (flange)
26 Seal part 26H Back surface 27 of seal part Mounting base 28 Opening trim 30 Rib 31 Return part 31M Concave surface 32A of return part Mold part (first mold part)
33 Die-cutting hole A The side opposite to the rib rising direction

Claims (4)

An opening is formed in the seat back to allow communication between the passenger compartment and the trunk room behind the passenger compartment,
Setting the openable lid said opening,
A structure of a trunk through portion of a seat back in which an opening trim having a seal portion pressed against a peripheral portion of the lid is attached to the peripheral portion of the opening over the entire periphery ,
A rib is erected toward the lid on the radially outer side of the opening from the opening,
The opening trim has a mounting base formed in a U-shaped cross section,
By attaching the mounting base to the rib, the opening trim is positioned on the radially outer side of the opening relative to the opening, and the seal portion is attached to the mounting base of the opening trim. Provided,
A trunk-through structure of a seat back configured to press the peripheral edge of the lid against the seal portion . The lid is formed in a box shape,
A flange is formed over the entire circumference of the lid,
A stepped surface facing the flange is formed at the peripheral edge of the opening,
The rib rises from the step surface toward the flange ,
The trunk through portion structure for a seat back according to claim 1, wherein a seal portion of the opening trim is pressed against the flange. When the sealing portion of the opening trim is formed in the shape of a cross section, and the back surface of the seal portion is pressed against the peripheral edge of the lid, the sealing portion The trunk-through structure of a seat back according to claim 1 or 2, wherein the distal end side is bent with respect to the proximal end side . While forming the opening in the resin molded product provided in the seat back, the rib is erected on the periphery of the opening of the resin molded product,
A plurality of return portions for preventing the opening trim mounting base from coming off are dispersedly disposed on the rib,
The mold part which forms the concave surface side of the said return part is die-cut | released on the opposite side to the standing direction of the said rib, The some die-cutting hole is formed in the peripheral part of the said opening of Claims 1-3 The trunk through structure of the seat back according to any one of the above.

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