JPH08323073A - Seat back of seat for automobile - Google Patents

Abstract

PURPOSE: To abolish a wire exclusively used for pulling in a cover end by fixing the end of a seat back cover by using a back board. CONSTITUTION: A resin hook 4a is sewn to an open periphery 4b of three sides except for the lower side of a bag-shaped seat back cover 4 of which rear side is opened. A flange 5a extending to the rear side is formed around the three sides except for the lower side of the periphery of a back board 5 arranged on the back of the seat back 1. The resin hook 4a is engaged with the flange 5a and the back board 5 is fit from the back side of a seat back pad 3 and is fixed to a seat back frame 2, thereby the end of the seat back cover 4 to be pulled in and fixed to the seat back 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back of a vehicle seat, and more particularly to a seat back of a type having a backboard on the back and back.

[0002]

2. Description of the Related Art In front seats for automobiles, particularly springless front seats, a concave surface is formed on the back and back of the seat back for the purpose of gaining leg space for rear seat occupants or due to design requirements. What you have done is known. 13 to 14 show a conventional seat back of this type.

FIG. 13 is a perspective view of a front seat having a backboard on the back and back of the seat back, FIG. 14 is a perspective view showing components of the seat back, FIG. 15 is a longitudinal sectional view of the seat back, and FIG. Similarly, it is a plane sectional view. As shown in the figure, the seat back frame 32 made of a pipe that constitutes the skeleton of the seat back 31 is formed in a substantially rectangular shape, and is wrapped in a seat back pad 33 having a substantially rectangular recess 33a on the back and back side. Is set.

The seat back cover 34 is formed in the shape of a bag with its back and back opened, and a hanging bag 34a containing an edge wire is sewn on the seat back pad 33 and sewn to the end of the open peripheral portion of the seat back frame. Three
The hog ring 34b is fixed to the upper and left and right suspending wires 32a provided on the No. 2 side. The backboard 35 made of resin or wood board is fitted into the recess 33a of the seatback pad 33 from the outer side of the end of the seatback cover 34 which is stopped by hog ring, and is seated at a position where the seatboard cover 34 is recessed by a predetermined amount from the surface. By fixing to the back frame 32, the seat back 3
1. Form a concave surface on the back and back part of 1.

The backboard 35 is provided with a hook 35a on the upper portion of the back surface thereof and a mounting bracket 35b on the lower portion thereof either integrally or afterwards.
5a to the wire 32a on the upper part of the seat back frame 32
L-shaped bracket 3 provided with a lower mounting bracket 35b on the lower part of the seat back frame 32 while
Seat back frame 3 by screwing 2b
Fixed to 2.

[0006]

However, the conventional seat back described above has the following problems. That is, since the end of the seat back cover 34 is fixed to the seat back frame 32 by the hog ring 34b, the troublesome work of welding the suspending wire 32a to the seat back frame 32 is required. In addition, there is a problem that it causes an increase in weight and also leads to an increase in cost including a large number of man-hours for fixing the terminal of the seat by the hog ring 34b.

The present invention has been made in view of the above problems, and an object of the present invention is to fix a terminal portion of a seat back cover by using a backboard to thereby make a wire for hanging only. To abolish.

[0008]

In order to solve the above problems, the present invention takes the following means. That is, claim 1
In the invention, a seat back frame, a seat back pad that is set so as to wrap it in the seat back frame and has a recess on the back and back sides, and a bag-like shape with the back and back sides opened is provided. A seat back for an automobile seat, comprising: a seat back cover that encloses a back pad; and a back board that is fitted into a recess of the seat back pad from the back side and fixed to the seat back frame. While forming a flange portion projecting to the back side on the peripheral edge of the board, a locking member that can be locked to the flange portion of the backboard is provided at the end of the open peripheral edge of the seat back cover. Characterize. Here, the back side of the backboard means the inner side of the seatback.

According to the invention of claim 1, which is configured as described above, after the engaging member provided at the end of the seat back cover is engaged with the engaging portion of the back board, the back board is attached to the seat back pad. By fitting in the recess and fixing it to the seat back frame, it can be pulled into the seat back and fixed. Therefore, a wire dedicated to suspending is unnecessary.

According to a second aspect of the present invention, in the seat back of the automobile seat according to the first aspect, the flange portion of the backboard bends the left and right and upper three peripheral edge portions of the backboard toward the back side. It is characterized in that the locking members of the seat back cover are provided correspondingly to the left and right and upper ends of the open peripheral edge.

Therefore, according to the second aspect of the present invention, the locking portion can be set without significantly changing the shape of the backboard.

According to a third aspect of the present invention, in the seat back of the automobile seat according to the first aspect, the flange portion of the backboard is formed so as to project from flat portions on the left and right sides of the backboard, which are slightly inward. Correspondingly, the locking member of the seat back cover is provided on the left and right side edges of the open peripheral edge portion.

Therefore, according to the third aspect of the invention, it is possible to pull the end of the seat back cover to the back surface side of the backboard.

According to a fourth aspect of the invention, in the seat back of the automobile seat according to the second or third aspect, the locking member is composed of a hook.

Therefore, according to the invention of claim 4, it is possible to easily perform the work of locking the end of the seat back cover to the back board.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. First, a first embodiment will be described based on FIGS. 1 is a perspective view showing a seat back constituent member of an automobile front seat, FIG.
Is a longitudinal sectional view of the seat back, FIG. 3 is a plan sectional view of the seat back, FIG. 4 is a perspective view of the backboard seen from the back surface, and FIG.
FIG. 3 is a detailed view of an X portion of FIG.

As shown in the figure, the seat back frame 2 made of a pipe, which constitutes the skeleton of the seat back 1, is formed in a substantially rectangular shape, and in order to mount a back board 5 which will be described later, the left and right sides 2 are provided above the seat. It has one wire 2a, and has two left and right L-shaped brackets 2b at the bottom. The seat back frame 2 is shown in FIGS.
As shown in, the seat back pad 3 as a cushioning material having a substantially rectangular recess 3a on the back side is set so as to be wrapped.

The seat back cover 4 constituting the skin of the seat back 1 is formed in the shape of a bag with the back and back sides open in a rectangular shape, and is covered so as to cover the seat back pad 3 as a whole and the seat back pad 3 is opened. A resin hook 4a serving as a locking member for the backboard 5 is sewn to each of the peripheral edge terminals 4b except for the lower side of the peripheral edge terminals 4b.

Each hook 4a is formed to have the same length as the width of each terminal 4b. The substantially rectangular backboard 5 arranged on the back and back of the seatback 1 is made of resin or wood board, and the terminal portions are provided on the three peripheral portions of the left and right except for the lower portion and the upper portion. A flange portion 5a is integrally formed so as to project in a tapered shape by being bent to the back side (inside).

As shown in FIG. 4, the backboard 5 has two hooks 5b on the left and right sides on the upper side of the back surface thereof.
The left and right mounting brackets 5c are provided on the lower portion on the back surface side. Then, the backboard 5 is fitted into the recess 3 a of the seatback pad 3 from the back side and fixed to the seatback frame 2.

As shown in FIGS. 2 and 5, the back board 5 is fixed to the seat back frame 2 by hooking the hook 5b to the wire 2a of the seat back frame 2 from below and fixing the mounting bracket 5c. The upper surface thereof is positioned so as to be aligned with the lower surface of the L-shaped bracket 2b of the seat back frame 2 and tightened with screws 6, and the screw tightening work in that case is performed by utilizing the flexibility of the pad. Perform with the edge terminal dismissed.

When mounting the above-mentioned backboard 5, however, as shown by the phantom lines in FIGS. 2 and 3, the flange 5a of the backboard 5 is hooked on the terminal 4b of the seat back cover 4 in advance. 4a are locked. Therefore, by fitting the backboard 5 into the recess 3a of the seatback pad 3 in that state and performing the work of attaching the backboard 5 to the seatback frame 2, the cover terminal 4b is pulled into the seatback 1 and fixed. To be done. Thus, the terminal 4b of the seat back cover 4 is uniformly pulled and fixed in the seat back 1 through the hook 4a, except for the lower portion, so that wrinkles are suppressed and a neat stake is made. .

In this case, the amount of insertion of the backboard 5 into the recess 3a of the seat back pad 3 is appropriately set, and a step is formed between the back surface of the seat back cover 4 and the surface of the seat back 5. It is possible to form a concave shape on the back and back of the seat back 1 for a leg space of a rear seat occupant or to meet a design-like requirement. The terminal 4b on the lower side of the seat back cover 4 hangs downward as it is, and when the seat back 1 is assembled to the seat cushion, the gap at the rear end of the seat cushion is hidden.

As described above, in the seat back according to the present embodiment, the terminal 4b of the seat back cover 4 is fixed to the flange portion 5a of the backboard 5 by the hooks 4a. The seat back frame 2 does not require a wire dedicated to suspending the seat back cover 4 at the terminal. Therefore, the time and labor for welding the wire to the seat back frame 2 can be saved, and
The frame structure is simplified and the weight is reduced.

Further, the cover terminal fixing work using the conventional hog ring gun has various problems such that it is troublesome and troublesome and the required work time is long. According to the above, the cover terminal fixing work can be performed at the same time as the assembling of the back boat 5, so that all such problems can be solved.

Next, a second embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. 6 is a perspective view of a seat back constituent member, FIG. 7 is a sectional view of a seat back upper portion, FIG. 8 is a sectional view of a seat back side portion, and FIG. 9 is a locking structure explanatory view. In this embodiment, a clip 8 is used instead of the hook 4a as a locking member for the terminal of the seat back cover 4 with respect to the back board 5.

That is, as shown in FIG. 6, a resin plate 7 is sewn or adhered along the longitudinal direction to the terminal 4b at the open peripheral edge of the seat back cover 4, and each of these plates 7 has a long length. Mounting holes 7a are provided at predetermined intervals in the direction. On the other hand, correspondingly, the flange portion 5a of the backboard 5 is provided with a mounting hole 5d extending along the longitudinal direction thereof.

Then, as shown in FIG. 9, a pin-shaped resin clip 8 with a seat having a locking collar 8a and a slit 8b in the axial direction is attached to the plate 7 on the inner surface (back surface) of the flange portion 5a. The terminal 4b is fixed to the flange portion 5a by being fitted into the mounting holes 7a and 5d. The other parts are configured in the same manner as the above-described embodiment.

Therefore, according to this embodiment, as in the above-described embodiments, the backboard 5 is fixed with the terminal 4b of the seat back cover 4 fixed to the flange portion 5a of the backboard 5 with the clip 8. When attached to the seat back frame 2, as shown in FIGS. 7 and 8, the terminal 4b is pulled into the seat back 1, and at this time, the plate 7 acts so as not to cause wrinkles on the cover, and a neat extension. Is realized. Further, since the clip 8 is drawn into the seat back 1 and does not appear on the surface of the seat back 1, the appearance is not spoiled.

Next, a third embodiment of the present invention will be described with reference to FIG.
~ It demonstrates based on FIG. 10 is a perspective view of a seat back constituent member, FIG. 11 is a perspective view of the back board seen from the back surface, and FIG. 12 is a plan sectional view of the seat back. In this embodiment, flanges 5a are integrally provided along the left and right edges of the back surface of the backboard 5.
The flange portion 5a is formed so as to project from flat portions on the left and right sides, which are located slightly inward, and is formed in a hook shape having a substantially J-shaped cross section with its tip facing inward.

On the other hand, correspondingly, resin hooks 4a as locking members are sewn on the left and right ends 4b at the open side edge of the seat back cover 4 over substantially the entire length thereof. It can be locked to the flange portion 5a of the backboard 5. Further, the backboard 5 is provided with two upper hooks 5e and two lower hooks 5f on the left and right, respectively, on the upper and lower portions of its back surface.
The e and 5f are fixed to the seat back frame 2 by locking the upper and lower cross wires 2c provided in a pipe shape on the seat back frame 2 in a bridging manner.

The seat back frame 2 has a frame main body 2d made of a substantially U-shaped pipe with an open bottom, and a channel member 2e fixed to the lower ends of both ends of the frame main body 2d.
And upper and lower cross wires 2c for fixing the backboard fixed to the frame body 2d in a bridging manner.

In this embodiment, among the terminals 4b at the open peripheral edge of the seat back cover 4, the upper and lower terminals 4b are hogged with respect to the cross wire 2c of the seat back frame 2 configured as described above. The edge wire 4 is formed in a bag shape so as to be fixed via the edge wire 4.
c is inserted. That is, in this embodiment, among the terminals on the open peripheral edge of the seat back cover 4, the left and right terminals 4b are fixed by using the flange portion 5a of the backboard 5, and the upper and lower terminals 4b are attached to the back. The board is fixed by a hog ring using the cross wire 2c for fixing.

In the case of the embodiment configured as described above, first, the upper and lower terminals 4b of the seat back cover 4 are provided.
Is fixed to the cross wire 2c of the seat back frame 2 by a hog ring. Subsequently, after hooking the hooks 4a of the left and right terminals 4b of the seat back cover 4 to the flange portion 5a of the back board 5, the back board 5 is fitted into the recesses 3a of the seat back pad 3 and the upper and lower hooks 5 are inserted.
e and 5f are cross wires 2c of the seat back frame 2
Seat back cover 4
The left and right terminals 4b can be pulled in and fixed in the seat. In this case, since the terminal 4b of the cover is drawn around the back surface of the backboard 5, the appearance of the terminal portion of the backboard 5 and the fitting surface of the seat back cover 4 is improved.

In this embodiment, the left and right terminals 4b among the terminals 4b on the open peripheral edge of the seat back cover 4 can be fixed by using the backboard 5, so that the seat is smaller than the conventional one. The wires for attaching the cover terminals on the left and right of the back frame 2 can be omitted to reduce the total number of wires, and the number of hog rings can be reduced to reduce the work man-hours.

In the above-described first embodiment, the case where the flange portion 5a of the backboard 5 is projected in an inclined shape has been described, but the inclination is directed to the inside of the pad terminal by retracting the cover terminal. It is appropriately set in consideration of the collapse of the sheet, and in some cases, it may project substantially at a right angle. Further, in the first and second embodiments, the fixing of the backboard 5 to the seatback frame 2 is finally made by screw tightening, but when a so-called elastic engagement fixing system is adopted, the seatback is Not only the three peripheral edges of the open peripheral edge of the cover 4 but also the entire peripheral edge including the lower portion may be fixed via the hooks 4a.

Further, in each of the embodiments, the case of the front seat has been described, but it goes without saying that the present invention can be applied to a so-called second seat arranged between the front seat and the rear seat. In addition, in the third embodiment, the flange portion 5a has a cross-section approximately J with its tip facing inward.
Although it is formed in the shape of a hook, the cross-sectional shape may be such that it protrudes straight to the back surface, and the flange portion 5a has three peripheral edges including the upper portion as in the first and second embodiments. It is also possible to change the configuration to be formed in.

[0038]

As described in detail above, according to the present invention,
Since the terminal of the seat back cover is fixed by using the back board, the wire dedicated to suspending the seat back frame, which is required in the conventional fixing method using the hog ring, can be omitted. Therefore, simplification of the frame structure and reduction of weight are achieved, and cost is reduced. Furthermore, as compared with the conventional hog ring method, the work of fixing the cover terminal is simplified, and the workability of assembling the seat back can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a seat back constituent member of an automobile front seat.

FIG. 2 is a vertical sectional view of a seat back.

FIG. 3 is a plan sectional view of a seat back.

FIG. 4 is a perspective view of the backboard seen from the back surface.

FIG. 5 is a detailed view of an X part of FIG.

FIG. 6 is a perspective view showing a seatback constituent member according to a second embodiment of the present invention.

FIG. 7 is a sectional view of the upper portion of the seat back.

FIG. 8 is a sectional view of a seat back side portion of the same.

FIG. 9 is an explanatory view of a locking structure.

FIG. 10 is a perspective view showing a seatback constituent member according to a third embodiment of the present invention.

FIG. 11 is a perspective view of the backboard as seen from the back side.

FIG. 12 is a sectional view of the lower side of the seat back.

FIG. 13 is a perspective view showing a conventional seat back with a backboard.

FIG. 14 is a perspective view of a conventional seat back constituent member.

FIG. 15 is a vertical cross-sectional view of a conventional seat back.

FIG. 16 is a plan sectional view of a conventional seat back.

[Explanation of symbols]

1 ... Seat back 2 ... Seat back frame 3 ... Seat back pad 4 ... Seat back cover 4a ... Hook 4b ... Seat back cover terminal 5 ... Back board 5a ... Flange part

Claims (4)

[Claims] 1. A seat back frame, a seat back pad that is set so as to wrap it around the seat back frame, and has a recess on the back and back sides, and a bag-like shape with the back and back sides open. A seat back for an automobile seat, comprising: a seat back cover for enclosing a seat back pad; and a back board fitted into a recess of the seat back pad from the back and back side and fixed to the seat back frame, wherein: A flange portion projecting to the back side is formed on the peripheral portion of the backboard, and a locking member capable of locking with the flange portion of the backboard is provided at the end of the open peripheral portion of the seat back cover. Seat backs for automobile seats. 2. The seat back of the automobile seat according to claim 1, wherein the flange portion of the back board is formed by bending the left and right and upper three peripheral edge end portions of the back board toward the back surface side. Correspondingly, the locking members of the seat back cover are provided at the left and right and upper ends of the open peripheral edge portion of the seat back for an automobile. 3. The seat back for an automobile seat according to claim 1, wherein the flange portion of the back board is formed to project from flat portions on the left and right sides of the back surface of the back board, which are slightly inward. The seat back of an automobile seat is characterized in that the locking members of the seat back cover are provided on the left and right side edges of the open peripheral edge portion. 4. The seat back for a vehicle seat according to claim 2, wherein the locking member is formed of a hook.