JP2012131275A - Seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat which has improved appearance.SOLUTION: The seat includes a side cover 19 and a lifter mechanism for changing and adjusting the height of a seating face 2Z. The side cover 19 is vertically divided into a lower cover 20 with a fixed position, and an upper cover 30 which goes up and down by the operation of the lifter mechanism. An upper portion 20J of the lower cover 20 and a lower portion 30K of the upper cover 30 are overlapped with each other in a seat width direction, and an overlapping margin of the upper portion 20J of the lower cover 20 and the lower portion 30K of the upper cover 30 is set in such a way that the overlapping state of the upper portion 20J of the lower cover 20 and the lower portion 30K of the upper cover 30 may not be released in the whole lifting stroke.

Description

The present invention
Equipped with a lifter mechanism that changes and adjusts the height of the seating surface,
The present invention relates to a seat having a side cover.

The side cover of the seat covers a slide mechanism attached to the lower portion of the seat cushion, a reclining mechanism for adjusting the angle of the seat back, and the like.
Conventionally, the side cover is formed of a single member, and the entire side cover is raised and lowered by the operation of the lifter mechanism. For this reason, there is a problem that a part of the seat frame is visible depending on the operating range of the lifter mechanism.
As a countermeasure against this, as disclosed in Patent Document 1, there is a technique in which a shielding member is provided between the side cover and the seat cushion to close the gap when the height of the seat surface is changed. There is a possibility that the shielding member may give a strange appearance.
Moreover, the following problems also exist in the seat in which the seat heater and the harness for the airbag are routed from the seat back to the seat cushion.
That is, since the harness is set to be long so as not to be damaged by being pulled strongly by the seat cushion or the like when the height of the seat surface is changed by the lifter mechanism, according to the conventional structure, the lifter mechanism is When driven down, the slack harness was visible outside the side cover, and the appearance was damaged.
As a countermeasure, as disclosed in Patent Document 2, there is a technique of providing a protective cover for hiding the harness at the lower part of the seat back. However, even with this technique, it is inevitable that the external appearance is uncomfortable.

Japanese Utility Model Publication No. 63-188235 Japanese Utility Model Publication No. 5-93300

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a sheet capable of improving the appearance.

The feature of the present invention is that
Equipped with a lifter mechanism that changes and adjusts the height of the seating surface,
A seat with a side cover,
The side cover is vertically divided into a lower cover that is fixed in position and an upper cover that moves up and down by the operation of the lifter mechanism.
The upper part of the lower cover and the lower part of the upper cover overlap each other in the seat width direction,
The overlap margin between the upper part of the lower cover and the lower part of the upper cover is set so that the overlapping state of the upper part of the lower cover and the lower part of the upper cover is not released in the entire lifting stroke of the upper cover. . (Claim 1)

With this configuration, the lower cover covers the seat side portion in a fixed state as before the operation even when the lifter mechanism is operated. On the other hand, when the lifter mechanism is actuated, the upper cover moves up and down while covering the seat side.
Even if the lifter mechanism is operated, the lower cover is in a fixed position as before the operation, so that it can always cover a certain range of the seat side. In addition, it is possible to avoid the lower cover from interfering with the floor and other parts of the vehicle body, and the lift stroke of the lifter mechanism is no longer restricted by the lower cover, improving the freedom of design of the lift stroke. Can be made.
Further, when the lifter mechanism is actuated, the upper cover moves up and down while covering the side of the seat, so that the seat side can be prevented from being exposed to the side of the seat after the lifter mechanism is actuated. And since the overlapping state of the upper part of the lower cover and the lower part of the upper cover is not released in the entire lifting stroke of the upper cover, the seat side part covered with the lower cover and the upper cover before the operation of the lifter mechanism is the lifter mechanism. After the operation, it is possible to prevent side exposure from between the upper part of the lower cover and the lower part of the upper cover, and the appearance quality of the sheet can be improved.
Furthermore, in the structure in which the side cover is molded from resin, the mold for molding the upper cover and the lower cover can be made smaller than when the both side covers are molded integrally, thus reducing the mold cost of the side cover. it can. (Claim 1)

In the present invention,
A hinge mechanism is provided that allows the seat back to swing and rotate about the horizontal axis on the lower end side;
A seat belt buckle is placed at the rear end of the seat cushion,
When the upper cover covers the hinge mechanism and the seat belt buckle, the following action can be achieved. (Claim 2)

The rear end side of the seat cushion where the hinge mechanism and the seat belt buckle are located changes greatly when the lifter mechanism is operated. Covering the rear end side of the seat cushion with the cover increases the size of the cover. On the other hand, according to the above-described configuration of the present invention, the rear end side of the seat cushion is covered only with the upper cover, so that the cover can be downsized.
In addition, since the upper cover moves up and down by the operation of the lifter mechanism, the hinge mechanism and the seat belt buckle can be reliably covered even if the position change amount of the hinge mechanism and the seat belt buckle is large, improving the appearance quality. Can be made. (Claim 2)

In the present invention,
When the cover part covering the harness routed on the seat side part from the rear side of the seat is connected to the upper cover, it can improve the appearance by covering the harness with the cover part, and the rear seat The passenger's legs can be prevented from interfering with the harness. (Claim 3)

  According to the present invention, it is possible to improve the degree of freedom in designing the lift stroke of the lifter mechanism, to reduce the cover mold cost, to reduce the manufacturing cost, and to improve the appearance quality of the seat. We were able to provide a sheet that could be used.

(A) is a side view of the seat in a state where the seating surface is at the lowest position (low position), and (b) is a side view of the seat in a state where the seating surface is at the highest position (high position). Partial cutaway perspective view of sheet viewed from diagonally rear side Vertical side view of the rear end of the seat showing the position of the harness Perspective view of upper cover (A) DD sectional drawing of FIG.5 (c), (b) is a top view of a lower cover, (c) is a side view of a lower cover

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1A, FIG. 1B, and FIG. 2 show a front seat 1 (hereinafter referred to as “seat 1”) of an automobile. The seat 1 includes a seat cushion 2 that supports the occupant's buttocks and thighs, and a seat back 3 that supports the occupant's waist and back, and a headrest that supports the occupant's head at the upper end of the seat back 3. 4 are connected.

  The seat cushion 2 includes a seat frame 5 (see FIG. 3), a seat cushion pad supported by the seat frame 5, and a skin material that covers the seat cushion pad. A seat back pad supported by the seat back frame 6 and a skin material covering the seat back pad are provided. Both the seat cushion pad and the seat back pad are made of urethane foam.

  Further, a side support portion 7 (see FIG. 2) that holds the upper body of the occupant in the seat width direction is formed on the right side portion of the seat back 3 so as to be raised, and a side airbag 8 is built in the side support portion 7. The side airbag 8 is supplied with gas from the inflator when receiving an impact, and instantaneously inflates and deploys outside the side support portion 7 to protect the right side portion of the occupant.

  As shown in FIGS. 2 and 3, a harness 9 connected to the side airbag 8 is routed on the left side portion of the rear end portion of the seat cushion 2 and the left side portion of the lower end portion of the seat back 3. ing. The harness 9 extends downward from the upper end portion of the side airbag 8, extends from the lower end portion on the right side of the seat back 3 to the left side, and passes through the fixing portion of the spring portion 10 on the back surface of the seat back 3. It reaches the left end portion of the rear end portion and is connected to a connector disposed on the floor surface of the vehicle body below the seat cushion 2. The length of the harness 9 is set to be long, so that the harness 9 is not pulled strongly by the seat cushion 2 or the like when the height of the seating surface 2Z of the seat cushion 2 is changed by a lifter mechanism described later.

  As shown in FIGS. 1 (a) and 1 (b), the support arm 12 rises from the seat frame 5 (see FIG. 3) located on the side of the rear end portion of the seat cushion 2 to the front upper side. A seat belt buckle 13 for connecting and engaging the tongue of the seat belt is connected to the upper end portion of the support arm 12.

  A slide mechanism 14 that allows the seat 1 to move in the front-rear direction is connected to the seat frame 5 of the seat cushion 2, and the angle of the seat back 3 with respect to the horizontal direction is adjusted to the seat frame 5 behind the slide mechanism 14. Or a reclining mechanism provided with a hinge mechanism 15 for laying the seat back 3 on the front side Fr of the seat. The slide mechanism 14 includes a fixed frame 16 that is fixed to the floor panel of the vehicle body, and a movable frame that slides and moves in the seat front-rear direction (vehicle front-rear direction) with respect to the fixed frame 16.

  Further, a lifter mechanism (not shown) is connected to the seat frame 5 of the seat cushion 2 to change the height of the seating surface 2Z of the seat cushion 2 by moving the seat cushion 2 up and down integrally with the seat back 3. . The lifter mechanism is constituted by a link mechanism, and the seat cushion 2 and the seat back 3 swing around the horizontal axis on the seat front end side. For this reason, the amount of lift on the seat rear end side is larger than that on the seat front end side. Reference numeral 70 in FIG. 2 denotes an operation lever of the lifter mechanism. FIG. 1A shows a state where the sheet 1 is positioned at the lowest position by the lifter mechanism, and FIG. 1B shows a state where the sheet 1 is positioned at the highest position.

[Structure of side cover 19]
As shown in FIG. 1A, FIG. 1B, and FIG. 2, the seat 1 includes a pair of left and right side covers 19 that cover the sides of the lower portion of the seat. The left side cover 19 is vertically divided into a resin lower cover 20 whose position is fixed and a resin upper cover 30 which is lifted and lowered by the operation of the lifter mechanism. Lower portions 30K of the upper cover 30 overlap each other in the sheet width direction. Then, the overlap allowance of the upper portion 20J of the lower cover 20 and the lower portion 30K of the upper cover 30 is not released so that the overlapping state of the upper portion 20J of the lower cover 20 and the lower portion 30K of the upper cover 30 is not released in the entire lifting stroke of the upper cover 30. Is set.

[Structure of lower cover 20]
As shown in FIGS. 1, 5 (a), 5 (b), and 5 (c), the lower cover 20 is a first lower cover that covers the side portion of the slide mechanism 14 below the seat cushion 2. Part 21, a second lower cover part 22 that is bent inward in the seat width direction from an end of the front side Fr of the first lower cover part 21 and covers the front part of the slide mechanism 14, and a first lower side The cover portion 21 includes a third lower cover portion 23 that is bent inward in the seat width direction from the end of the seat rear side Rr and covers the rear portion of the slide mechanism 14. The rear end portion 21B of the first lower cover portion 21 located below the seat back 3 bulges outward in the seat width direction. A clip seat 24 protruding from the inner surface of the first lower cover portion 21 is fixed to the frame of the slide mechanism 14 via a clip 72. A clip hole is formed in this frame. As shown in FIG. 3, the upper end portion 23J (corresponding to a part of the upper end portion 20J of the lower cover 20) of the third lower cover portion 23 is inclined so as to be positioned on the seat front side Fr. Reinforcing ribs 20L are erected on the inner surface of the lower cover 20.

[Structure of upper cover 30]
As shown in FIG. 4, the upper cover 30 extends inward in the seat width direction from the first upper cover portion 31 that covers the lower end portion of the rear half of the seat cushion 2 and the rear end portion of the first upper cover portion 31. It comprises a second upper cover portion 32 that covers the harness 9 routed on the side portion of the rear end portion of the seat cushion 2 from the seat rear side Rr. That is, the second upper cover part 32 is connected to the first upper cover part 31.

  The rear half portion 31U of the first upper cover portion 31 is set to have a height dimension higher than that of the front half portion 31M, the upper end portion projects in an arc shape, and the first peripheral wall 31S1 protrudes inward in the sheet width direction from the upper end portion. Is formed. A mountain-shaped first protruding wall 31T protruding upward is formed at the upper end of the first peripheral wall 31S1. A top portion of the first protruding wall 31T is formed in an arc shape, and a second peripheral wall 31S2 projecting inward in the sheet width direction is formed on the peripheral portion of the first protruding wall 31T. Further, a first flange 31F projects radially inward from the arcuate end of the second peripheral wall 31S2.

  Further, a step 31 </ b> D is provided in the front half portion 31 </ b> M of the first upper cover portion 31, and the front end portion 31 </ b> M <b> 1 of the first upper cover portion 31 is located on the inner side in the sheet width direction than the remaining portion of the first upper cover portion 31. A clip seat 33 projects from the back surface (inner surface) of the front end portion 31M1 of the first upper cover portion 31.

  The second upper cover portion 32 is set to be shorter in height than the rear half portion 31U of the first upper cover portion 31, and is set to be longer than the front end portion 31M1 of the first upper cover portion 31. ing. A second projecting wall 32T that projects to the seat front side Fr is provided at the end of the second upper cover portion 32 on the inner side in the seat width direction. The height dimension of the second protruding wall 32T is set to be shorter than the main body part 32H of the second upper cover part 32, and the second protruding wall 32T is located at the middle part in the vertical direction of the second upper cover part 32. On the inner surface of the main body portion 32H of the second upper cover portion 32, an engaging claw 34 that protrudes toward the seat front side Fr is formed.

  A plurality of upper and lower reinforcing ribs 30L are formed from the inner surface of the main body portion 32H of the second upper cover portion 32 to the inner surface of the first upper cover portion 31 (specifically, from the engaging claw 34 side to the clip seat 33 side). ing.

  The first upper cover portion 31 covers the hinge mechanism 15 and the lower portion of the support arm 12 of the seat belt buckle 13, and the second upper cover portion 32 covers the harness 9 as described above. The second protruding wall 32T covers the harness 9 and plays a role of preventing the engagement claw 34 and the upper end portion 23J of the lower cover 20 from being seen.

  The clip seat 33 is inserted into and engaged with the clip hole of the seat frame 5 via the clip, and the engagement claw 34 is engaged with the engagement hole of the seat frame 5. The second upper cover portion 32 covers the upper end portion 23J of the inclined third lower cover portion 23 from the seat rear side Rr.

With the above configuration,
(1) Even when the lifter mechanism is activated, the lower cover 20 covers the seat side slide mechanism 14 and the like in a fixed state as before the operation. On the other hand, when the lifter mechanism is operated, the upper cover 30 moves up and down while covering the lower end portion of the rear half of the seat cushion 2. Since the lower cover 20 is in a fixed position even before the lifter mechanism is activated, it can always cover a certain range of the seat side. Further, the lower cover 20 can be prevented from interfering with the floor of the vehicle body and other parts, and the lift stroke of the lifter mechanism is not limited by the lower cover 20, and the freedom of design of the lift stroke is eliminated. Can be improved.
(2) When the lifter mechanism is actuated, the upper cover 30 moves up and down while covering the sheet side portion, so that the sheet side portion can be prevented from being exposed to the seat side after the lifter mechanism is actuated. And since the overlapping state of the upper part 20J of the lower cover 20 and the lower part 30K of the upper cover 30 is not released in the entire lifting stroke of the upper cover 30, it was covered with the lower cover 20 and the upper cover 30 before the operation of the lifter mechanism. The sheet side portion can be prevented from being exposed to the side from between the upper portion 20J of the lower cover 20 and the lower portion 30K of the upper cover 30 after the lifter mechanism is operated, and the appearance quality of the sheet 1 can be improved.
(3) The mold for molding the upper cover 30 and the lower cover 20 can be made smaller than the case where these are integrally molded, and the mold cost of the cover can be reduced.
(4) Since the upper end portion 23J of the third lower cover portion 23 covered by the second upper cover portion 32 is inclined so as to be positioned on the front side Fr of the seat, the upper cover is activated by the operation of the lifter mechanism. Interference between the third lower cover portion 23 and the second upper cover portion 32 when the 30 moves upward in the front side can be prevented.

2 Seat cushion 2Z Seat surface 9 Harness 13 Seat belt buckle 15 Hinge mechanism 19 Side cover 20 Lower cover 20J Lower cover upper part 30 Upper cover 30K Upper cover lower part 32 Cover part (second upper cover part)

Claims (3)

Equipped with a lifter mechanism that changes and adjusts the height of the seating surface,
A seat with a side cover,
The side cover is vertically divided into a lower cover that is fixed in position and an upper cover that moves up and down by the operation of the lifter mechanism.
The upper part of the lower cover and the lower part of the upper cover overlap each other in the seat width direction,
A seat in which a margin of overlap between the upper part of the lower cover and the lower part of the upper cover is set so that the overlapping state of the upper part of the lower cover and the lower part of the upper cover is not released in the entire lifting stroke of the upper cover. A hinge mechanism is provided that allows the seat back to swing and rotate about the horizontal axis on the lower end side;
A seat belt buckle is placed at the rear end of the seat cushion,
The seat according to claim 1, wherein the upper cover covers the hinge mechanism and the seat belt buckle.   The seat according to claim 1 or 2, wherein a cover portion that covers the harness routed on the seat side portion from the rear side of the seat is connected to the upper cover.

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