JPH1133247A - Trim cover suspension structure for seat back - Google Patents

Abstract

(57) [Summary] [Purpose] The groping operation inside the trim cover is omitted, and the seat back can be made hogling-free. [Structure] Locking plate provided with slit 12 with wall
14 is provided on the back of the seat back body 18 so as to be exposed. The hook plate 20 having the elastically narrower hook pieces 20a is fixed to the inner surface of the back of the trim cover 22. 12 opening upper end 12b-U, lower end 12b-
It is provided between L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back trim cover hanging structure in which a seat back trim cover is partially hung and locked on the back of the seat back.

[0002]

2. Description of the Related Art For example, in a seat back of a vehicle seat such as a passenger car, a seat pad as an elastic body is usually arranged at a predetermined position around a seat back frame to form a correspondingly shaped seat back body. You. Then, by covering this seatback body with a trim cover made of a skin or the like, a seatback capable of elastically supporting the upper body of the occupant from behind is formed.

[0003] As such a seat cover trim cover, for example, a generally bag-shaped configuration having an opening at one end such as a lower end is generally known, and insertion of the seat back body from the opening, that is, the seat back body is performed. Of the seat back body can be covered by the trim cover.

In a seat back of a seat mounted as a front seat of a passenger car, a leg space (also referred to as a knee space) for a rear seat occupant is provided between a rear portion of the seat and a front portion of a rear seat. ), It is common to employ a configuration in which the back of the seat back, that is, the relevant portion of the back is thinned forward. In such a configuration,
Since the upper back portion of the seat back is thicker than the other portion, that is, behind the leg space portion, the trim cover is likely to bend in the leg space portion, which may cause a deterioration in appearance quality.

[0005] In view of the above, a configuration in which the back of the trim cover is partially locked under suspension from the seat back body to secure leg space and prevent the trim cover from bending, etc., has been proposed. 07-012000. According to such a configuration, since the back and back of the trim cover are appropriately stretched in the leg space portion, the leg space of the rear row seat occupant can be easily secured, and the deflection of the trim cover in the leg space portion is reduced. Can be prevented.

[0006]

SUMMARY OF THE INVENTION The above-mentioned Japanese Utility Model Application No. 07-012000
In the known configuration disclosed in Japanese Patent Application Laid-Open Publication No. H10-157, the retainer fixed to the inner surface of the trim cover is connected and locked to the trim wire of the seat back frame by a hog ring or the like, so that the corresponding portion of the trim cover can be hung. It is possible.

However, since the trim cover is substantially in the shape of a bag, the work of stopping the hog ring in the interior of the trim cover forces the worker to grope. Therefore, in this known configuration, a reduction in workability is inevitable.

[0008] Since the work of stopping the hog ring under such groping largely depends on the work intuition of the worker, the workability and the reliability of the work tend to differ depending on the skill of the worker. .

In addition, the hog ring stopping work requires dedicated equipment for hog ring, for example, a dedicated tool such as a hog ringer, a device for supplying compressed air, and the like, which increases the capital investment and complicates the work. Is inevitable.

Incidentally, a so-called adhesive molded sheet in which a seat back body and a trim cover are bonded between their seating surfaces is known as one configuration of the seat back. In this type of the adhesive molded sheet, it is not necessary to suspend or lock the seat on the side of the seating surface, and therefore, hog ring is omitted in this portion. However, in known configurations,
Since hog rings are used for hanging the back of the back, it is not easy to eliminate the hog rings in the seat back.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a trim structure for suspending a trim cover of a seat back, which eliminates groping work inside the trim cover and makes it possible to eliminate the need for a hog ring in the seat back.

[0012]

In order to achieve this object, according to the present invention, there is provided a slit with a wall extending in the left-right direction and having at least upper and lower ends having peripheral walls erected in the front direction of the seat back body. The provided locking plate is laid and fixed between the left and right sides of the seat back frame so that at least the opening of the slit with the wall can be aligned and exposed at the hanging position of the back of the seat back body.

[0013] Then, it can be inserted from the opening into the slit with the wall under a forced and elastic contraction by the external pressure, and the shape of the slit after the insertion can be separated from the terminal of at least one of the upper and lower peripheral walls of the slit with the wall. A hook plate integrally having a hook piece that is impossible to engage is fixed to the inner surface of the back of the trim cover at a position where it can be aligned with the slit with a wall, and when the hook plate is inserted into the slit with the wall. A step of a height at which the hook piece can be engaged is provided between the upper end and the lower end of the opening of the slit with a wall, which serves as a guide.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1 and FIG. 2, in the suspension structure 10 for trimming a seat back according to the present invention, a locking plate 14 provided with a slit 12 with a wall is provided.
A hook plate 20 which is provided on the seat back body 18 by being erected and fixed between the left and right sides of the seat back frame 16 and which can be inserted and locked in the slit with the wall of the locking plate is provided around the periphery of the seat back body. It is fixed to the inner surface of the back of the trim cover 22 that covers the surface.

As can be seen from FIG. 2, the seat back body 18 is formed by arranging a seat pad 24 as an elastic body at a predetermined position around the seat back frame 16 assembled in a substantially rectangular shape. I have. Then, as shown in FIG. 3, the seat back body 18 is covered with a substantially bag-shaped trim cover 22 having one end (lower end) opened, for example, a seat back 28 of a seat 26 mounted as a front seat of a passenger car. Are formed.

The back of the seat back 28, that is, the back is partially thinned forward. The portion behind the back of the thin seat back 28, that is, the area a shown in FIG. 3, is a leg between the rear part of the seat 26 and the front part of the rear row seat (not shown) for the rear row seat occupant. A space (also referred to as a knee space) is secured, and at the boundary between the thick part (range b) and the range a at the rear of the upper part, the back of the trim cover 22 Partially suspended.

In the present invention, the corresponding portion of the back of the trim cover 22 is suspended from the seat back body by locking the hook plate 20 to the locking plate 14 provided on the seat back body 18. It is possible.

As can be seen from FIG. 4 in addition to FIG.
The hook plate 20 is formed from a synthetic resin material or the like into a substantially J-shaped side surface having a hook piece 20a that can be forcibly and elastically reduced in width under the action of external pressure and integrally formed at one end (tip).
The hook plate is fixed to the inner surface of the back of the trim cover by suturing the rear end to one end of the trim cover 22 at a corresponding position on the inner surface of the trim cover 22, that is, at a position where the trim cover is suspended.

A slit 12 with a wall is provided in the locking plate 14 with a slit width that can ensure insertion and engagement of the hook piece 20a of the hook plate from the opening. The slit 12 with a wall is formed as a form having upper and lower peripheral walls 12a-U and 12a-L, which are erected on the seating surface of the seat back 28, that is, in the front direction (left side in the figure) of the seat back body 18. Have been.

Here, in the embodiment of the present invention, the locking plate 14 has a recess 30 extending in the left-right direction in a substantially inverted trapezoidal vertical cross section, which is a surface on the back back side of the seat back body 18, that is, FIG. It is formed on the surface on the middle right side, and at the bottom surface 30a of the concave portion, any one of the side surfaces located above and below the bottom surface, for example, the upper
Is provided. In this embodiment, the concave portion 30
The upper side surface is erected in the front direction of the seatback body 18 as a peripheral wall above the walled slit 12, that is, as an upper wall 12a-U, and as a bent piece from the bottom surface 30a, A peripheral edge, that is, a lower wall 12a-L is formed.

In such a configuration, a step L1 corresponding to the depth of the recess 30 is formed between the upper end 12b-U and the lower end 12b-L of the opening of the slit 12 with a wall. And this step L1
Is set in advance as a height at which the hook piece 20a of the hook plate can be engaged, so that this step can function as a guide when the hook plate 20 is inserted into the opening of the slit 12 with the wall. .

As shown in FIG. 1, the locking plate 14
The walled slit 12 is arranged substantially aligned with the boundary line 32 between the range a and the range b in the seat back body 18, that is, at the position where the trim cover 22 is hung, and for example, the lower part of the slit with the wall is positioned in the back-to-back direction. The seat back body 18 is disposed in a state where the seat back body 18 is exposed.

Here, the outer width T1 of the hook piece 20a of the hook plate at normal time is formed wider than the slit width T2 of the slit 12 with a wall. The hook piece 20a has its outer width T1 changed to the slit width T2 by the action of external pressure, for example, the elastic contraction caused by insertion into the slit 12 with the wall.
It is formed so as to be narrower.

In the trim cover suspension structure 10 of this configuration, as shown in FIG. 4, first, an operator picks up the hook plate 20 from outside the back of the substantially bag-shaped trim cover 22 so as to be substantially horizontal. The hook plate is pressed against the locking plate 14 with the hook pieces 20a at the top. At this time, as shown in FIGS. 1 and 4, in the present invention, a step L1 at which the hook piece 20a can be engaged is formed between the upper end 12b-U and the lower end 12b-L of the opening of the slit 12 with a wall. Because it is formed, the upper end of the opening, and thus the upper wall 12a-
If the hook plate 20 is moved up and down so that the hook piece is engaged with U, the position of the slit with the wall can be easily located.

When the hook plate 20 is pushed in with the compression of the seat pad 24 at the contact position with the upper wall 12a-U of the slit 12 with the wall, the hook pieces 20a of the hook plate are moved along the upper wall. It enters and is inserted through the slit 12 with its elastic width. Then hook piece 20
If a passes through the slit 12 with the wall and the pressing force (external force) in the width-reducing direction is released from the hook piece, the elasticity of the hook piece is restored as shown in FIGS. The hook plate 20 engages with the locking plate 14 so that the hook plate 20 cannot fall off by engaging the hook piece with one of the ends (upper wall in the figure) of the upper wall 12a-U or the lower wall 12a-L of the slit with a wall. As a result, the corresponding portion of the trim cover 22 is suspended from the back of the seat back body 18 and held.

When the hook plate 20 is inserted into the slit 12 with the wall, the seat pad 24 is pressed. When the hook plate 20 is pressed, the trim cover 22 is released. The hook plate is pulled together with the hook plate under the shape restoration of the pad, so that the hook pieces 20a of the hook plate are automatically and firmly attached to the ends of the upper wall 12a-U and the lower wall 12a-L of the slit with the wall. Is engaged.

As described above, in the seat cover trim cover hanging structure 10 according to the present invention, the hook plate 20 is moved from the outside of the back side of the substantially bag-shaped trim cover 22 to the slit 12 with the wall of the locking plate. Since it is sufficient to insert and lock the trim cover, there is no need to grope inside the trim cover when suspending the trim cover.

That is, the work of hanging the trim cover 22 can be carried out easily and reliably regardless of the skill level of the worker, so that the workability and the work reliability when hanging the trim cover are improved.

Since the operation of suspending the trim cover 22 can be performed under the condition that the hook plate 20 is pushed from behind the back of the trim cover, the suspending operation itself is extremely simple and easy. Therefore, mass production of the seat back 28 with the suspension of the trim cover 22 can be sufficiently performed.

Further, it is sufficient that the locking plate 14 provided with the slit 12 with the wall is provided and fixed between the left and right sides of the seat back frame 16 and the hook plate 20 is fixed to the corresponding inner surface of the trim cover 22. Therefore, the trim cover suspension structure 10 that enables mass production of the seat back 28 can be easily secured without complicating the configuration.

In the embodiment of the present invention,
The hook piece 20a of the hook plate is placed on the upper wall of the slit with the wall.
Although the configuration for engaging with the hook 12a-U is illustrated, the invention is not limited to this. For example, if the hook piece is provided below the hook plate, the hook piece engages with the lower wall 12a-L of the slit with a wall. Needless to say.

By the way, in the seat back of the vehicle seat, the front surface, that is, the central portion (bent portion) of the seating surface and its side portion (squab) are separated by hanging using a hanging wire or the like. In this case, the suspended wire or the like is usually hooked to the embedded wire or the like in the seat back body by hogling.
However, the locking operation by the hog ring requires a special tool, special equipment, and the like, and is not preferable.

Therefore, with the adhesion on the side of the seating surface,
A so-called adhesive molded sheet in which a seatback body is covered with a substantially bag-shaped trim cover is known. In such an adhesive molded sheet, it is not necessary to hang the trim cover on the side of the seating surface of the seatback, so that it is possible to eliminate hogling on the side of the seating surface. By using the trim cover suspension structure 10 of the present invention for the adhesive molded sheet, it becomes possible to eliminate the need for hogling on the back of the seat back in addition to the seating surface side.

That is, if the present invention is constituted by an adhesive molded sheet, it is easy to make the seat back 28 hog-less. Accordingly, since the seat back 28 can be assembled without providing a dedicated tool for hog ring, special equipment, and the like, workability and reliability of the seat back assembly are improved, and mass production of the seat back is achieved. The production efficiency at the time of conversion is surely improved.

Here, in the embodiment of the present invention, the slit 12 with a wall is provided continuously on the upper surface of the bottom surface at the bottom surface 30a of the concave portion having a substantially inverted trapezoidal longitudinal section. It is sufficient if a step is formed between the upper end 12b-U and the lower end 12b-L of the opening, and conversely, it is possible to provide a slit with a wall by connecting the bottom surface of the concave portion to the lower side surface of the bottom surface. Good.

In this case, the lower side surface of the concave portion 30 is erected as the lower wall 12a-L of the slit 12 with a wall in the front direction of the seat back body 18, and is bent as a bent piece from the bottom surface 30a. The upper wall 12a-U of the slit with the wall is erected. In this configuration, the entirety of the concave portion 30 is provided so as to be exposed on the back of the seat back body 18.

However, in the configuration in which the slit 12 with the wall is provided so as to be continuous with the bottom surface 30a of the concave portion and the lower side surface of the bottom surface, the concave portion 30 and the upper end 12b-U and the lower end of the opening of the slit with the wall formed thereby are provided. In order to secure the insertion of the hook plate 20 using the step between 12b-L, it is necessary to expose the entire recess on the back of the seat back body 18 so that the slit with the wall is There is a possibility that the boundary may be shifted downward from the boundary line 32 between the range a and the range b.

On the other hand, if the slit 12 with a wall is provided so as to be continuous with the bottom surface 30a of the concave portion and the side surface above the bottom surface, the slit with the wall is always located at the upper end portion of the bottom surface.
Without displacing the slit with the wall from the boundary line 32 between the range a and the range b of the seat back 28, the upper end 12b-U, the lower end 12 of the recess 30 and the opening of the slit with the wall formed thereby.
Since the insertion of the hook plate 20 using the step between bL can be ensured, not only the workability is further improved, but also a more effective suspension can be easily obtained from the viewpoint of improving the external shape.

In the embodiment of the present invention,
A recess 30 having a bottom 30a and a substantially inverted trapezoidal longitudinal section is provided on the locking plate 14 as the recess 30.
It is sufficient if a step L1 can be formed between the upper end 12b-U and the lower end 12b-L of the opening, and the present invention is not limited to this. For example, as shown in FIG. May be formed in the locking plate as a concave portion, and a slit with a wall may be provided at a vertex between the upper and lower side surfaces.

In FIG. 5, the upper side surface of the concave portion having a substantially inverted triangular longitudinal section can function as the upper wall 12a-U of the slit 12 with a wall, and the bent side of the lower side surface is provided with a wall. A lower wall 12a-L of the slit is formed.

Further, the upper end 12b of the opening of the slit 12 with a wall is provided.
Since it is sufficient to form a step L1 between the lower end 12b and the lower end 12b-L, the present invention is not limited to the formation of the recess 30. For example, as shown in FIG.
The lower piece 14b may be formed in advance at a corresponding step in height, and the upper and lower pieces may be positioned at the upper and lower ends of the opening to provide a step between the upper and lower ends of the opening.

However, if the recess 30 is provided in the locking plate 14 and the slit with the wall is formed as a form continuous with the recess, the position of the slit with the wall can be clarified by the recess, and the back of the trim cover 22 can be clarified. The work of inserting the hook plate 20 outside the above becomes easier. And
By the formation of the concave portions 30, the reinforcement of the locking plate 14 can be obtained at the same time, and thus the deformation of the locking plate can be prevented without complicating the configuration.

In the embodiment of the present invention,
Although the hook plate 20 is embodied as a substantially J-shaped side surface, the hook plate 20 can be elastically reduced in width under the action of external pressure, and has an upper wall 12a-
U, hook piece 20a shaped to engage with the terminal of lower wall 12a-L
It is sufficient that the hook plate is integrally formed at one end (tip), so the hook plate is not limited to the substantially J-shaped side surface, but may be formed into, for example, a substantially ↓ shape or a substantially ♭ shape.

However, the hook plate 20 is substantially
With the J-shape, the outer width of the hook pieces 20a and, consequently, the overall external thickness of the hook plate can be suppressed, so that the hook plate can be made larger and the slit width of the slit 12 with a wall can be prevented from increasing. Therefore, after the trim cover 22 is hung, the appearance quality of the seat back 28 is improved.
From this point, it can be easily secured.

In the structure for suspending a trim cover of a seat back according to the present invention, a seat back of a seat mounted as a front seat of a passenger car is exemplified. Is sufficient, so it is not limited to this. For example,
The present invention may be applied to seats of other automobiles such as buses, seats of trains, airplanes, ships and the like, or seats of movie theaters and theaters.

The embodiments of the present invention described above are intended to explain the present invention, and do not limit the present invention in any way. Modifications, alterations, etc., within the technical scope of the present invention may be made. It goes without saying that all are included in the present invention.

[0048]

As described above, according to the seat back trim cover hanging structure according to the present invention, the hook plate is provided from the outside of the back side of the substantially bag-shaped trim cover to the slit with the wall of the locking plate. Since it is sufficient to insert and lock the trim cover, there is no need to grope inside the trim cover when suspending the trim cover.

Accordingly, the work of hanging the trim cover can be easily and reliably performed regardless of the skill level of the operator, and the workability and the certainty of the work for hanging the trim cover are improved. The operation itself is extremely simple and easy, and mass production of the seat back with the hanging of the trim cover is sufficiently possible.

The locking plate provided with the slit with the wall is installed and fixed between the left and right sides of the seat back frame, and it is sufficient to fix the hook plate to the corresponding inner surface of the trim cover. A trim cover suspension structure that enables mass production can be easily secured without complicating the configuration.

Further, according to the present invention, in a so-called adhesive molded sheet in which the seat back body is covered with a substantially bag-shaped trim cover together with the bonding on the seating surface side, the seat back added to the seating surface side is provided. It is possible to eliminate the need for hogling on the back of the vehicle, so that the workability and the reliability of the work when assembling the seatback are improved, and the production efficiency when mass-producing the seatback is reliably improved.

If a substantially inverted trapezoidal concave portion having a bottom surface or a substantially inverted triangular concave portion is provided as a concave portion on the locking plate, not only can the position of the slit with the wall be clarified, but also the concave portion can be formed by the concave portion. Since the locking plate is reinforced, deformation of the locking plate can be prevented without complicating the configuration.

Further, when the lower end of the opening of the slit with a wall is positioned closer to the front side of the seat back body than the upper end thereof to form a step of the opening, the hook plate can be smoothly inserted using the step of the opening of the slit with the wall. Therefore, not only the workability is further improved, but also a more effective hanging can be easily obtained from the viewpoint of improving the external shape.

Further, when the hook plate has a substantially J-shaped side surface, the outer width of the hook piece and, consequently, the overall external thickness of the hook plate can be suppressed. Enlargement can be prevented. Therefore, after the trim cover is suspended,
Improvement of the appearance quality of the seat back can be easily ensured also from this point.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a trim cover suspension structure for a seat back according to the present invention.

FIG. 2 is a schematic perspective view of the seat back main body as viewed from the rear (back and back side).

FIG. 3 is a schematic perspective view of a seat as viewed from the rear (back and back side).

FIG. 4 is a schematic exploded cross-sectional view of a partially broken structure of the trim cover suspension structure of the seat back.

FIG. 5 is a schematic longitudinal sectional view similar to FIG. 1 of a trim cover suspension structure of a seat back, showing a modification.

FIG. 6 is a schematic vertical sectional view similar to FIG. 1 of a trim cover suspension structure of a seat back, showing another modification.

[Explanation of symbols]

 10 Trim cover hanging structure for seat back 12 Slit with wall 12a-U, 12a-L Upper and lower walls of slits with wall 12b-U, 12b-L Plate 16 Seat back frame 18 Seat back body 20 Hook plate 20a Hook piece 22 Trim cover 28 Seat back 30 Recess 30a Bottom of recess 32 Boundary line (hanging position)

Claims (6)

[Claims] 1. A seat back body having a seat pad disposed around a seat back frame is covered with a substantially bag-shaped trim cover, and a predetermined portion of the back is partially covered with respect to the seat back body. The seat back is a seat back suspended and locked, the locking plate provided with a slit with a wall extending in the left-right direction and having a peripheral wall erected in the front direction of the seat back body at least up and down. At least the opening of the slit with the wall is aligned and exposed at the hanging position on the back of the back of the main body, installed and fixed between the left and right sides of the seat back frame, under forced and elastic contraction by external pressure Can be inserted into the slit with the wall from the opening, and the shape of the slit with the wall cannot be detached from at least one of the upper and lower ends of the peripheral wall by the shape restoration after the insertion. A hook plate integrally having a hook piece to be fixed to the inner surface of the back and back of the trim cover at a position that can be aligned with the slit with a wall, and a guide for inserting the hook plate into the slit with the wall. A step of a height at which the hook pieces can be engaged is provided between the upper end and the lower end of the opening of the slit with the wall, and the trim cover suspension structure of the seat back is provided. 2. A peripheral surface of a seat back body in which a seat pad is arranged around a seat back frame is covered with a substantially bag-shaped trim cover provided with an adhesive on a side of a seating surface. A seat back as an adhesive molded sheet in which a predetermined portion of the back is partially hung and locked with respect to the seat back body, and has at least a vertical wall having a peripheral wall erected in the front direction of the seat back body. A locking plate provided with a slit with a wall extending in the direction aligns and exposes at least the opening of the slit with a wall at a hanging position on the back of the seat back body, so that it can be exposed, between the left and right sides of the seat back frame. It can be inserted into the slit with the wall from the opening under the forced and elastic contraction by the external pressure, and the shape can be restored after the insertion. A hook plate integrally having a hook piece that is irremovably engaged with at least one of the upper and lower peripheral walls of the slit with a hook is fixed to the inner surface of the back of the trim cover at a position that can be aligned with the slit with the wall. A step of a height at which the hook piece can be engaged, which serves as a guide when inserting the hook plate into the slit with a wall, is provided between the upper end and the lower end of the opening of the slit with a wall. The seat back trim cover hanging structure. 3. The locking plate is formed with a concave portion extending in the left-right direction having a substantially inverted trapezoidal vertical cross section on the surface on the back and back side of the seat back body, and a slit with a wall is formed on the bottom surface of the concave portion. 3. The suspension structure according to claim 1, wherein a step is formed between the upper end and the lower end of the opening of the walled slit by being provided continuously on any one of the upper and lower sides of the bottom surface. 4. The locking plate is formed with a concave portion extending in the left-right direction having a substantially inverted triangular longitudinal cross section on the surface on the back back side of the seat back body, and a slit with a wall is formed at the apex of the concave portion. 3. The suspension structure according to claim 1, wherein a step is formed between an upper end and a lower end of the opening of the slit with a wall by continuously providing the slit on the upper or lower side. 5. The lower portion of the slit with the wall is aligned and exposed to the hanging position on the back of the seat back body, the locking plate is disposed on the seat back body, and the lower end of the opening of the slit with the wall is closed. The suspension structure according to any one of claims 1 to 4, wherein the trim cover is suspended from the upper end on the front side of the seat back body. 6. The synthetic resin material according to claim 1, wherein the hook plate is formed into a substantially J-shaped side surface having a hook piece elastically deformable in the width direction at one end under the action of external pressure. The trim cover suspension structure of the seat back described.