JP6577330B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and more particularly, to a vehicle seat that improves the ability of an occupant of a rear seat to put under a seat.

  Vehicle seats such as automobile seats are required to have various functions such as safety, holdability, and getting on and off (ease of getting on and off), and at the same time, there are many demands for improving passenger comfort such as sitting comfort and vibration absorption performance.

  In front seats of automobiles, efforts are being made to design and develop so that passengers sitting on the front seats can enjoy the comfort of the passengers and at the same time, the space of the feet of the passengers in the rear seats can be taken as much as possible.

  As a background art in this technical field, for example, there is a technique such as Patent Document 1. Patent Document 1 discloses an “automobile seat slide mechanism that improves the occupant comfort of a rear seat occupant and can be used in a luggage space that extends to a space under a seat cushion”.

  Further, Patent Document 2 discloses an “electric cord wiring structure of an automobile seat that is easy to bend, does not hit a human foot, and has a wiring margin that does not wrap around the seat”.

  Patent Document 3 states that “a footrest provided so as to be able to be taken in and out between a seat frame and a rearward position of the seat exposes a footrest surface for a rear occupant at the outgoing position, There is disclosed a vehicle seat "in which a rear end surface of a seat frame is opened to form a foot space under the seat when stored between frames.

Japanese Patent Laid-Open No. 11-129792 JP-A-11-198743 JP 2004-42857 A

  In the conventional front seat, in order to widen the space for the occupant's feet in the rear seat, for example, when forming the cover at the bottom of the seat, by pressing the mold material while applying heat to the cloth material such as carpet, However, it is necessary to prepare a mold corresponding to the vehicle type, which leads to an increase in manufacturing cost.

  In addition, recently, electric seats and seats with built-in heaters are also widespread, and these wirings are often arranged at the bottom of the sheet, but since a plurality of harnesses (wiring bundles) are bundled together, The diameter of the harness has become thick, which is an impediment to increasing the space at the foot.

  Further, since the harness (wiring bundle) having a large diameter is fixed to the seat frame separated from the foot, the position of the harness (wiring bundle) is not stabilized at the foot portion, and the insertion of the foot is obstructed.

  Although the said patent document 1 is an effective technique in ensuring the space of a step, it is necessary to prepare the arch type | mold riser according to a vehicle model, and it leads to a raise of manufacturing cost. In addition, since the position of the front seat is increased, the comfort of the passenger in the front seat may be impaired.

  In Patent Document 2, an increase in cost for forming the wiring structure at the bottom of the sheet is unavoidable, which is disadvantageous for suppressing the manufacturing cost.

  Moreover, since the footrest becomes an obstacle when the footrest is stored between the seat frames, the above-mentioned Patent Document 3 is not suitable for widening the space at the foot.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle seat that can take a large foot space for an occupant of a rear seat while suppressing an increase in manufacturing cost.

In order to solve the above-described problems, the present invention provides a seat cushion that serves as a seating surface portion of a seat, a seat back that is provided on the back side of the seat cushion and serves as a backrest portion of the seat, and a lower side of the seat cushion. is a bottom cover covering the seat bottom, a seat with the bottom cover, by steric sewing a plurality of cloth that has been draping are formed recessed on the seat cushion side One end of the suspender is connected to the trim cover by sewing, and a suspender provided at the other end is engaged with the seat frame or the trim cover to be mounted on the seat bottom .

  ADVANTAGE OF THE INVENTION According to this invention, while suppressing manufacturing cost, the foot space of the passenger | crew of a rear seat can be taken widely, and the passenger | crew's comfort of a rear seat can be improved.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a figure showing the whole vehicular seat outline concerning one embodiment of the present invention. It is an A-A 'arrow line view (back view) in FIG. It is an enlarged view of the D section in FIG. It is a B-B 'arrow line view (bottom view) in FIG. It is a figure which shows the C-C 'part cross section in FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and detailed description of the overlapping portions is omitted. Also, in each drawing, cushion materials such as urethane and wadding are omitted so that the main configuration can be easily understood.

  The vehicle seat of the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the vehicle seat 1 of the present embodiment is provided with a seat cushion 2 serving as a seating surface portion of a seat on a seat frame (not shown). On the back side of the seat cushion 2, a seat back 3 serving as a seat back portion is provided via a reclining mechanism (not shown). A headrest 4 that protects the occupant's head and neck is provided on the upper portion of the seat back 3. Side supports 5 are provided on both sides of the seat cushion 2 to support the occupant's thigh from the lateral direction when sitting. Further, side supports 6 are provided on both sides of the seat back 3 to support the occupant's back from the lateral direction when sitting.

  The configuration of the back side of the seat back 3 will be described with reference to FIG. 2 is a view (rear view) taken along the line A-A 'in FIG. 2 shows a state in which the bottom cover 8 that is normally fixed by the suspender 10 is detached from the seat by removing the suspender 10 for easy understanding of the configuration. In addition, the trim cover 11 on the back side of the seat, which is normally fixed by the concealed fastener 7, releases a part of the concealed fastener 7 halfway (opens) so that a part of the trim cover 11 is detached from the seat.

  As shown in FIG. 2, the trim cover 11 on the back side of the seat back 3 is connected to the trim cover on the side support 6 side by a conceal fastener 7 provided on both sides, and is attached to the seat. One end of the bottom cover 8 that protects the bottom of the seat is connected to the trim cover 11 by sewing or the like. A suspender 10 is provided at the opposite end of the bottom cover 8 and is attached to the seat bottom by engaging with a seat frame, a trim cover, etc. on the front side of the seat bottom.

  The bottom cover 8 will be described in more detail with reference to FIG. FIG. 3 is an enlarged view of a portion D in FIG. As shown in FIG. 3, the bottom cover 8 is formed by three-dimensionally cutting a cloth material such as a carpet as a material and three-dimensionally sewing the cut pieces. In the example of FIG. 3, four pieces are three-dimensionally sewn to form the bottom cover 8.

  Note that draping is a cutting method in which the fabric is directly applied to the sheet mold to cut the shape, and is closer to the intended shape and silhouette than the plane cutting that uses a pattern drawn on a plane. Cloth material can be cut into shapes. 3D sewing is a sewing method in which a 3D cut piece is sewn while maintaining its shape. Compared to flat sewing in which the cut piece is sewn on a flat surface, the cut piece is closer to the intended shape and silhouette. Can be sutured.

  As shown in FIG. 3, a dent (concave shape) can be formed in the bottom cover 8 with the stitching portion 12 as a valley line by three-dimensionally sewing the trimmed piece. By arranging the bottom cover 8 so that the dent (concave shape) faces the lower side of the seat, that is, the foot side of the occupant of the rear seat, and fixing with the suspender 10 or the like, a wider space can be taken. .

  In other words, the bottom space 8 is formed to be recessed toward the seat cushion 2 by three-dimensionally sewing the cut pieces that have been cut in three dimensions, thereby widening the foot space.

  Next, a method of arranging a harness (wiring bundle) arranged at the seat bottom of the vehicle seat 1 will be described with reference to FIG. As shown in FIG. 4, the vehicle seat of this embodiment is divided into two harnesses (wiring bundles), that is, the harnesses (wiring bundles) are not bundled into one. The harnesses B15 are arranged along both sides of the lower surface of the seat cushion.

  In the conventional seat, a thick harness bundled into one like the harness A14 is arranged so as to be the shortest distance near the center of the lower surface of the seat, so that the occupant of the rear seat puts his feet on the bottom of the seat The thick harness near the center was in the way.

  Therefore, in this embodiment, as shown in FIG. 4, the harness A14 having a large diameter is not arranged in the area where the passenger in the rear seat puts his / her foot, and the harness B15 having a small diameter is divided along the both sides of the lower surface of the seat. To secure a space for the rear seat occupants to put their feet.

  Furthermore, by fixing the harness B15 to the resin inner cover 16 provided on both sides of the lower surface of the seat cushion by the fastener 17, the arrangement of the harness (wiring bundle) at the bottom of the seat is stabilized, and the passenger in the rear seat can When trying to put a foot into the bottom of the seat, the harness (wiring bundle) is prevented from getting in the way.

  As described above, in the present embodiment, the bottom cover 8 located at the seat bottom is formed with a depression (concave shape) by three-dimensional cutting and three-dimensional sewing of the cloth material, so that the foot of the passenger of the rear seat Space can be taken widely. In addition, the harness (wiring bundle) arranged at the bottom of the seat is divided into one piece without being bundled, and is arranged separately on both sides of the lower surface of the seat, thereby reducing the space for arranging the harness (wiring bundle). be able to. Further, by fixing the divided thin harness (wiring bundle) with a small diameter to the inner cover, the position of the harness (wiring bundle) can be stabilized, and the footability to the lower part of the seat can be further improved.

  In the present embodiment, an example in which a cloth material such as carpet is used as the material of the bottom cover 8 is not limited to this. For example, a leather material such as genuine leather or synthetic leather is used. However, by similarly performing draping and sewing, it is possible to provide a recess (concave shape) in the bottom cover 8, and to improve the ability of the rear seat occupant to enter the lower portion of the front seat.

  Moreover, although the example fixed by the suspender 10 was shown as a fixing method of the bottom cover 8, it is not limited to this, For example, fixing means, such as a fastener, a button, and a hook, may be used.

  With reference to FIG. 5, the vehicle seat of Example 2 will be described. FIG. 5 shows a cross section taken along line C-C ′ in FIG. 2.

  In the vehicle seat described in the first embodiment, the comfort of the occupant of the rear seat is improved by widening the space at the feet of the occupant of the rear seat, particularly the space below the front seat. If the passenger in the rear seat tries to put his / her foot under the front seat, the knee may hit the back side of the seat back 3 and the foot may not be sufficiently under the front seat. Therefore, in this embodiment, as shown in FIG. 5, the trim cover 11 on the back side of the seat back 3 is hung on the front side, so that the space between the occupant's knee of the rear seat and the seat back 3 can be increased. The rear passenger comfort is improved.

  The suspending structure of the trim cover 11 is suspended from the front side of the seat back 3 by a suspending member 19 connected to the trim cover 11 by sewing or the like, as shown in the enlarged E part of FIG. A hook 18 is provided at the tip of the suspension member 19, and the trim cover 11 is suspended to the front side by engaging the hook 18 with the end of the seat frame 9 inside the seat back 3. . Thereby, a clear hollow (concave shape) can be formed in the trim cover 11 on the back side of the seat back 3 without using a hard member such as a resin plate.

  As described above, in this embodiment, in addition to securing the space below the front seat by the method described in Embodiment 1, the trim cover 11 on the back side of the seat back 3 is suspended to the front side. Therefore, it is possible to prevent the occupant's knees in the rear seat from coming into contact with the seat back 3, and further increase the space at the feet of the occupant in the rear seat.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle seat, 2 ... Seat cushion, 3 ... Seat back, 4 ... Headrest, 5, 6 ... Side support, 7 ... Conceal fastener, 8 ... Bottom cover, 9 ... Seat frame, 10 ... Suspender, 11 ... Trim cover, DESCRIPTION OF SYMBOLS 12 ... Suture part, 13 ... Seat slide, 14 ... Harness A, 15 ... Harness B, 16 ... Inner cover, 17 ... Fastener, 18 ... Hook, 19 ... Suspension member

Claims (4)

A seat cushion to be a seat surface portion of the seat;
A seat back provided on the back side of the seat cushion and serving as a backrest portion of the seat;
A vehicle seat having a bottom cover that is provided on a lower side of the seat cushion and covers a bottom surface of the seat;
The bottom cover is formed to be recessed toward the seat cushion by three-dimensionally sewing a plurality of three-dimensionally cut cloth materials , and one end of the bottom cover is connected to the trim cover by sewing and is provided at the other end. A vehicle seat characterized in that the suspender is attached to a seat bottom by engaging with a seat frame or a trim cover . The vehicle seat according to claim 1,
A wiring bundle is provided on the lower side of the seat cushion,
The vehicle seat according to claim 1, wherein the wiring bundle is divided into at least two bundles and disposed along both sides of the seat cushion. The vehicle seat according to claim 2,
The vehicle seat, wherein the wiring bundle is fixed to inner covers provided on both sides of the seat cushion. The vehicle seat according to claim 3,
The vehicle seat, wherein the inner cover is made of resin.

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