JP4466926B2 - Seat back structure with embedded headrest seat - Google Patents

Description

  The present invention relates to a seatback structure for a headrest-embedded sheet having a storage recess for storing a headrest at an upper end thereof.

  A so-called headrest-embedded seat that enables the headrest to be stored in the storage recess at the upper end of the seat back is provided as a seat for a vehicle such as an automobile. Since the height of the headrest is suppressed by storing the headrest in the storage recess, for example, this type of headrest embedded sheet is widely used as a folding sheet or a storage sheet that requires a reduction in the size of the entire sheet. It's being used.

  By the way, in recent folding sheets and storage sheets, the folding / storage form is further reduced in size and the overall thickness of the seat back including the headrest for the purpose of reducing the thickness is reduced. There is a demand for thin storage recesses that do not occur.

For example, in JP-A-2002-125793, a hard backboard is extended to the back of the seat back, and the back of the storage recess is covered with a hard cover plate so that the back of the storage recess is covered with the backboard and the cover. The structure described as a hard body combined with a plate is described.
JP 2002-125793 A

  In the configuration of Japanese Patent Laid-Open No. 2002-125793, the backboard and the cover plate are separate bodies, so that the number of parts is large and parts management is not easy. In addition, since separate backboards and cover plates are combined, a seam is formed at the upper end of the rear surface of the separate housing recess and exposed, which may deteriorate the appearance quality.

  An object of the present invention is to provide a headrest of a headrest-embedded sheet that has a small number of parts and can be easily managed.

According to the first aspect of the present invention, the front surface is covered with the trim cover and the headrest can be stored in the front, the storage recess having an open top surface is provided at the upper end, and the backboard extends to the back of the storage recess. In the seat back structure of the headrest embedded seat, the cover plate is formed integrally with the upper end portion of the back board made of a rigid body via a hinge, and the cover plate is folded forward with respect to the back board with the hinge to the back of the storage recess. It is characterized in that the back plate of the storage recess is formed by connecting and connecting the cover plate to the backboard.

  In the present invention according to claim 1, since the cover plate is integrally formed with the backboard, the number of parts is reduced, and the part management is facilitated because it is an integral part.

The cover plate is integrally formed on the upper end portion of the back board made of a hard body via a hinge. Then, the cover plate is folded back forward with respect to the back board by a hinge and disposed on the back surface of the storage recess, and the cover plate is connected to the back board to form the back surface portion of the storage recess. The cover plate is connected to the backboard by engaging the engaging piece at the lower end of the cover plate with the engaged piece on the inner surface of the backboard.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a schematic longitudinal sectional view, a schematic partial perspective view, and a schematic front view of a seatback structure of a headrest embedded sheet according to an embodiment of the present invention, and FIG. 4 shows a schematic longitudinal cross section of a backboard and a cover plate. A plane view is shown.

  As shown in FIGS. 1 and 2, in the seat back structure 10 of the headrest embedded seat according to the present invention, the retractable storage recess 14 of the headrest 12 has an upper end of the seat back 16 under the surrounding surface covering. Is formed. The front and upper surfaces of the storage recess 14 are open, and the backboard 32 extends to the back of the storage recess 14 as will be described later.

A so-called headrest-embedded seat having the storage recess 14 in which the headrest 12 can be stored at the upper end of the seat back 16 is used as, for example, a rear seat of an automobile. The seat back 16 is usually formed by disposing a seat pad 20 on the front surface of the seat back frame 18 and covering them with a trim cover 22.
As shown in FIG. 1, in the seatback 16 of this type of headrest-embedded seat, a headrest holder 26 into which the stay 24 of the headrest 12 can be inserted is provided at the upper end of the seatback frame 18 below the bottom surface of the storage recess 14. The headrest is disposed in the storage recess so as to be movable up and down by inserting the stay into the headrest holder.

  The basic structure itself of the seat back 16 of the headrest embedded sheet having such a storage recess 14 at the upper end is well known, and the point that the headrest 12 is inserted so as to be movable up and down is not different from the known structure. Detailed description thereof will be omitted.

  As shown in FIGS. 1 and 2, the front surface of the seat back 16, that is, the seating surface side surface is covered with the trim cover 22, while the back board 32 extends to the back surface of the storage recess 14. The back is covered. The backboard 32 is formed into a corresponding plate shape from a hard resin material, polypropylene, or the like.

As shown in FIGS. 1 and 4, in the present invention, the backboard 32 and the cover plate 35 are integrally formed. That is, the cover plate 35 is integrally formed on the upper end portion of the backboard 32 via the hinge 38, and the integrally formed backboard and cover plate are continuously covered by the single covering material 34. The hinge 38 is a so-called thin hinge whose thickness is reduced.
4, the cover plate 35 is folded forward around the hinge 38 and disposed on the back surface of the storage recess 14, and the lower end portion of the cover plate is connected to the back board to connect the back surface portion of the storage recess. 14a is formed.

  As shown in FIG. 3, for example, the engagement pieces 35a are formed at the center and the left and right ends of the lower end portion of the cover plate 35, respectively, and the engaged pieces 32a to which the engagement pieces can be engaged are the backboard. 32 is formed on each inner surface. For example, the engaging piece 35a and the engaged piece 32a have a hook shape that can be engaged with each other.

  A cover plate 35 is integrally formed on the upper end portion of the backboard 32 via a hinge 38, and an engageable engagement piece 35 a and an engaged piece 32 a are provided on the lower end portion of the cover plate 35 and the inner surface of the backboard 32. In the configuration, by folding the cover plate forward, the engaging piece of the cover plate is engaged with the engaged piece of the backboard, and the cover plate is connected to the backboard. Therefore, the back portion 14a of the storage recess is formed simply by folding the cover plate 35 and connecting the cover plate and the backboard. Therefore, the back surface portion 14a of the storage recess is formed under a simple operation, and the workability is improved.

  In the configuration in which the cover plate 35 is integrally formed with the backboard 32 via the hinge 38, and the integrated cover plate and the backboard are continuously covered with the single covering material 34, the seam is the rear portion of the storage recess. 14a, good appearance quality is obtained.

Further, in the configuration in which the back board 32 and the cover plate 35 are integrally formed from a rigid body via the hinge 38, the cover plate 35 is folded forward, and the lower end portion thereof is connected to the back board 32, the back portion 14a of the storage recess is formed. It is formed as a highly self-supporting hard body, and the rear surface of the storage recess is reinforced to ensure the required strength.
Moreover, since the back surface part 14a of the storage recess is made of a hard body having an integral structure, the thickness thereof can be suppressed, and the back surface of the storage recess can be thinned.
Furthermore, since the cover plate 35 and the backboard 32 are integrally formed, they can be managed as a single member, and the parts management becomes easy.

  As shown in FIGS. 1 and 3, a gate-shaped (U-shaped) cross-section locking bar 36 fixed to the seat back frame 18 by welding, for example, protrudes upward from the seat back frame and is behind the storage recess. 14a. A locking portion 32b having two hook pieces 32b 'having a substantially C-shaped cross section is formed in the lateral direction so as to protrude from the inner surface at the center of the backboard 32. The two locking pieces 32 b ′ of the locking portion 32 b sandwich the left and right leg portions of the locking bar 36, so that the upper end portion of the backboard 32 is locked to the locking bar 36.

  In this way, the locking portion 32 b formed on the inner surface of the backboard 32 is locked to the locking bar 36 fixed to the seatback frame 18, so that the upper end portion of the backboard 32 is interposed via the locking bar 36. The seat back frame 18 is locked and held. Therefore, the upper end portion of the backboard 32 becomes a structure in which the backward tilting (deformation) is suppressed, and the backboard 32 in which the deformation is suppressed is positioned behind the cover plate 35, whereby the back surface portion 14a of the storage recess. Is reinforced.

  Further, by locking the locking portion 32b to the locking bar 36, the backboard 32 is easily held on the seat back frame 18 via the locking bar, so that workability is improved. Then, the locking bar 36 is fixed to the seat back frame 18 and protruded, and the back board 32 is attached to the seat back frame 18 only by forming a locking portion 32b that can be locked to the locking bar on the inner surface of the back board 32. The back board 32 can be easily incorporated into the seat back frame 18 with a simple configuration.

  The above-described embodiments are for explaining the present invention, and do not limit the present invention. All modifications, alterations, and the like within the technical scope of the present invention are included in the present invention. It goes without saying that it is done.

  As described above, since the cover plate is integrally formed with the backboard, the number of parts is reduced, and the cover plate and the backboard are integrated, so that parts management becomes easy.

  Since the cover plate is integrally formed with the backboard via the hinge, and the integrated cover plate and the backboard are continuously covered with a single covering material, there is no seam at the back of the storage recess. Therefore, good appearance quality can be obtained.

  Since the engagement piece is provided at the lower end of the cover plate and the engagement piece that can be engaged with the engagement piece is provided on the backboard, the cover plate is folded back to connect the cover plate and the backboard. The back portion of the recess can be formed, and workability is improved.

  Since the latching part is provided on the inner surface of the backboard, the latching part is latched by the latching bar extending from the seatback frame, and the backboard is connected to and held by the seatback frame. The portion becomes a structure in which the backward tilt (deformation) is suppressed, and the backboard in which the deformation is suppressed is positioned behind the cover plate, whereby the back surface portion of the storage recess is reinforced.

  The seat back structure of the headrest-embedded seat according to the present invention is not limited to a seat of an automobile, and can be applied to a seat of a vehicle other than an automobile such as a train, an airplane, and a ship.

1 is a schematic longitudinal sectional view of a seat back structure of a headrest embedded sheet according to an embodiment of the present invention. 1 is a schematic partial perspective view of a seatback structure of a headrest embedded sheet according to an embodiment of the present invention. The schematic front view of the seat back structure of the headrest embedding seat concerning one example of this invention is shown. A schematic longitudinal sectional view of a backboard and a cover plate is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Seat back structure 12 Headrest 14 Storage recessed part 14a Back part of storage recessed part 16 Seat back 18 Seat back frame 32 Back board 32a Engagement piece 32b Locking part 32b 'Hook piece 34 Cover material 35 Cover plate 35a Engagement piece 36 Engagement Stop bar 38 Hinge

Claims (2)

In the seat back structure of the headrest embedded sheet in which the front surface is covered with a trim cover and the headrest can be stored, the storage recess having an open top surface is provided at the upper end, and the backboard extends to the back of the storage recess.
The cover plate is integrally formed via a hinge at the upper end of the backboard made of a hard body,
The seat back of the headrest-embedded seat, wherein the cover plate is folded back to the back board with a hinge and placed on the back of the storage recess, and the cover plate is connected to the back board to form the back of the storage recess. Construction. 2. The headrest embedding according to claim 1 , wherein an engagement piece is provided at a lower end portion of the cover plate, and the engagement plate is engaged with a corresponding engagement piece provided on the inner surface of the backboard to connect the cover plate to the backboard. Seat back structure of the seat.

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