JPH09239166A - Cushion body for vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen a work burden, reduce the dispersion of quality and improve the degree of freedom for a design work by applying the constitution that a locking member attached to each unit of a cushion pad material or a trim is locked to a support body for forming a cushion body. SOLUTION: A seat bottom cushion body 1a, for example, is made of a support body 2 and a unit cushion 3. Also, the unit cushion 3 is formed out of a U-shaped end cushion 4, a front end cushion 5 and a deep side cushion 6. A plurality of end locking holes 26 are drilled through the bottom plate 22 of the support body 2 in such a state as arranged along an annular wall 21. Furthermore, a pair of front end locking holes 27 are drilled through a front bottom plate 23 along a breadthwise direction, and a deep part locking hole 28 is drilled through a rear inclination surface 25a. Then, the locking members of cushions 4 to 6 are locked respectively to the locking holes 26 to 28. In this case, the locking members are provided, for example, as hooks 43 on the lower end part of an inner folding tolerance part 42a formed on a trim 42 to cover a pad member 41 for the end cushion 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushion body for an automobile seat in which a pad material is covered with trim.

[0002]

2. Description of the Related Art An automobile seat comprises a seat bottom as a seat and a seat back as a backrest, both of which are formed by attaching a cushion body to the surface of a frame as a structural material. The cushion body is usually composed of a pad material made of a synthetic resin foam and a skin (trim) covering the pad material, and the pad material provides the cushioning property of the seat, and the trim also serves as a pad. The material is protected and the appearance of the seat is beautiful.

Such a cushion body has irregularities formed on its surface so as to conform to the body shape of the seated person. By sinking the body in the recess, the sitting posture is stabilized, and the driving operation is not hindered by the vibration of the running vehicle or the centrifugal force when turning.

Conventionally, the cushion body is provided with a linear hanging groove along the portion of the curved surface of the pad material where the curved surface changes greatly, and the hanging wire is integrally formed with the pad material at the bottom of the hanging groove. Was embedded, a fitting such as an ohm clip was attached to a portion of the trim corresponding to the hanging groove, and the fitting was joined to the hanging wire in the hanging groove.

[0005]

However, as described above, a predetermined portion of the trim is fitted into the hanging groove formed in the pad material, and the connecting member is connected to the hanging wire buried in the groove bottom. The work (suspension work) is very complicated and difficult work. For example, if an ohm clip is used as the connecting member, the attachment tool of the ohm clip is very heavy, and skill is required to operate it freely. There is a problem that not only the load is large, but also the variation in product quality becomes large.

Further, if the three-dimensional shape of the pad material becomes complicated, a lot of hanging grooves must be provided correspondingly, and if the number of hanging grooves increases, the amount of hanging work increases and the productivity decreases. Therefore, there is a limit to making the shape of the pad material complicated, and eventually there is a problem that the degree of freedom in design is limited.

The present invention has been made in order to solve the above problems, and contributes to a reduction in work load and a variation in product quality, and an increase in the degree of freedom in design. It is an object of the present invention to provide a cushioning body for an automobile seat capable of

[0008]

A cushion body for an automobile seat according to claim 1 of the present invention is a cushion body for an automobile seat, the surface of which is provided with irregularities so as to conform to the body shape of a seated person. Is covered with trim, and
A cushion body is formed from a plurality of unit cushions divided by the boundary portion of the unevenness and a support body that supports each unit cushion, and a predetermined number of one or both of the pad material and the trim is provided. A locking member is additionally provided, and each unit cushion is attached to the support by locking the locking member to the support while the pad material is covered with trim. .

According to the cushion body of the vehicle seat of the first aspect, the cushion body of the seat can be obtained by locking the locking member attached to the pad material or trim of each unit cushion to the support body. Therefore, as in the past, the trim was fitted into the trim suspension groove that was recessed in the pad material, and a heavy mounting tool was operated to combine the trim and the wire embedded in the pad material with a coupling fitting such as an ohm clip. The cushion body is manufactured without performing such troublesome and skill-intensive work, and with the variation in product quality suppressed to a small level.

Further, the three-dimensional shape of the unit cushion can be set arbitrarily, and it is not necessary to consider the recessed position of the hanging groove and the workability of lifting the trim as in the conventional case, and the cushion is not required. Greater freedom in terms of body design.

A cushion body for an automobile seat according to claim 2 of the present invention is the cushion body for an automobile seat according to claim 1, wherein the cushion body is for a seat bottom, and the unit cushion is as follows. A U-shaped edge cushion, a tip side cushion provided on the tip side between both sides of the edge cushion, and a back side cushion provided on the back side thereof. It is characterized by.

According to another aspect of the cushion body for an automobile seat of the present invention, the edge cushion is attached along the edge portion on the support, and the tip side cushion and the back side cushion are provided between both sides of the edge cushion. A cushion body for the seat bottom can be obtained by arranging and mounting on the support body.

A cushion body for an automobile seat according to claim 3 of the present invention is the cushion body for an automobile seat according to claim 1, wherein the cushion body is for a seat back, and the unit cushion is as follows. A pair of side cushions attached to both sides in the width direction of the support so as to extend in the vertical direction, a central cushion provided between the pair of side cushions, and a tip end side of the support. And a front end side cushion that is provided.

According to the cushion body for an automobile seat, the side cushions are attached to both side portions of the support body so as to extend in the vertical direction, and the center cushion is arranged between the pair of side cushions. The seat back cushion body can be obtained by attaching the front side cushion to the front side of the support body.

[0015]

1 is an exploded perspective view showing a first embodiment of a cushion body for an automobile seat according to the present invention, and FIG. 2 is an assembled perspective view of the cushion body of FIG. In the first embodiment, the cushion body 1 is a cushion body 1a for a seat bottom. First, as shown in FIG. 1, a seat bottom cushion body 1a is composed of a seat bottom support body 2 and a plurality of unit cushions 3 attached to the support body 2. In the present embodiment, as the unit cushion 3, a U-shaped edge cushion 4 and a tip side cushion 5 arranged on the tip side of the gap between both side portions of the edge cushion 4.
And a back cushion 6 disposed on the back side of the gap between the edge cushions 4 are used.

The support 2 is formed in a substantially rectangular shape in plan view by a shallow synthetic resin container having an open top.
It has an annular wall 21 and a bottom plate 22. The cushion body 1a (FIG. 2) is obtained by arranging the edge cushion 4, the tip side cushion 5, and the back side cushion 6 on the bottom plate 22 in the annular wall 21.

The bottom plate 22 is formed in a step-like manner so that the bottom of the bottom plate 22 becomes deeper from the front (left side of FIG. 1). Then, the shallowest front bottom plate 23 is formed at the forefront portion, the intermediate bottom plate 24 that is one step lower is formed subsequently to this, and the deepest rear bottom plate 25 is formed at the rearmost portion. Further, a front inclined surface 23a is formed between the front bottom plate 23 and the intermediate bottom plate 24 so that the front inclined surface 23a is inclined downward, and the front inclined surface 23a is decreased between the intermediate bottom plate 24 and the rear bottom plate 25. Is formed on the rear inclined surface 25a.

Both sides of the edge cushion 4 cross the front bottom plate 23, the front inclined surface 23a, the intermediate bottom plate 24, the rear inclined surface 25a, and the rear bottom plate 25 in the front-rear direction, and the rear portion thereof is on the rear bottom plate 25. The shape is set so as to be located at. Also, the tip side cushion 5
Is located between both sides of the edge cushion 4 arranged in the support body 2, on the front bottom plate 23, the front inclined surface 23a and the intermediate bottom plate 24, and at the back side cushion 6
The shapes are set so as to be located on the rear inclined surface 25a in the inner part between both side parts of the edge cushion 4.

The stepped bottom plate 22 as described above surely prevents the edge cushion 4, the tip side cushion 5 and the back side cushion 6 mounted in the support body 2 from being displaced forward. There is.

The bottom plate 22 has a plurality of edge locking holes 26 formed along the annular wall 21, and the front bottom plate 23 has a pair of widthwise front end locking holes 27.
Further, the rear slanting surface 25a is provided with a deep part locking hole 28, and the locking members 26, 27, 28 are provided with locking members to be described later attached to the cushions 4, 5, 6. The cushions 4, 5 and 6 are attached to the bottom plate 22 by wearing them.
It is fixed.

FIG. 3 shows the edge cushion A shown in FIG.
FIG. 7A is a cross-sectional view taken along line A, where (A) shows a state before the edge cushion 4 is attached to the support 2, and (B) shows a state where the edge cushion 4 is attached to the support 2. ing. As shown in FIG. 3A, the edge cushion 4 is
The pad member 41 is made of a synthetic resin foam, and the trim 42 covers the pad member 41. The pad material 41 is formed in a U shape in a plan view as shown in FIG. 1, and the trim 42 follows the three-dimensional shape of the pad material 41 and a lower part so that the pad material 41 can be covered from above. It is sewn in the shape of a bag with an open shape.

Further, the trim 42 has an inner folding allowance 4 which hangs downward from the lower end portion of the pad member 41 at the lower portion thereof.
2a and an outer fold allowance 42b, the inner fold allowance 42a is folded toward the bottom surface of the pad material 41, and the outer fold allowance 42b is a support body with the edge cushion 4 fitted in the support body 2. It is designed to be folded toward the outer bottom surface of 2.

A first hook 43 is sewn to the lower edge of the inner folding margin 42a so as to correspond to the inner side of the edge engaging hole 26, and the lower end of the outer folding margin 42b. A second hook 45 is sewn to the edge portion so as to correspond to the outside of the edge engaging hole 26. The hooks 43 and 45 are oriented so that their bent engaging ends face each other. Further, on the back surface of the first hook 43, a locking projection piece 44 corresponding to the inner edge locking hole 26 is projected, and the locking projection piece 4 is provided.
An arrowhead-shaped locking head portion 44a is provided at the tip of 4.

On the other hand, in the pad material 41, a wire 41a extending along the U-shape of the pad material 41 is embedded in a portion close to the bottom surface on the inner side.
As shown in (b) of (3), by engaging the first hook 43, the bent inner folding allowance 42 a is attached to the pad member 41.

Therefore, first, the pad material 41 is covered with the trim 42 to bring the edge cushion 4 into the state shown in FIG. 3 (a), and then the first hook 43 is attached to the wire 4 in the pad material 41.
The inner folding allowance 42a is brought into close contact with the bottom surface of the pad member 41 by engaging with the la 1a, and the pad member 41 in this state is loaded into the annular wall 21 of the support 2 to lock the locking projection 44. 44a is press-fitted into the inner edge locking hole 26, and the outer folding margin 42b is hung outside the annular wall 21,
Then, the outer folding allowance 42b is bent toward the bottom plate 22 of the support body 2 and the second hook 45 is engaged with the outer edge engaging hole 26, so that the edge portion as shown in FIG. The cushion 4 is attached to the support 2.

FIG. 4 is an enlarged perspective view of the first hook 43. As shown in this figure, the base end side of each of the first hooks 43 is integrally joined to the belt-shaped body 43a, and the belt-shaped body 43a is sewn to the trim 42. By providing such a belt-like body 43a, the force applied to the first hook 43 is transmitted to the trim 42 in a dispersed state, thereby suppressing the occurrence of the hanging phenomenon of the trim 42. It should be noted that the fact that the hooks are connected to each other by a belt-shaped body is the same for the second hook 45 and the hook 53a of the tip side cushion 5a described later.

FIG. 5 is a sectional view taken along line BB of the tip side cushion 5 shown in FIG. 1, in which (a) is a basic embodiment and (b).
Shows a first modified embodiment, and (c) shows a second modified embodiment. First, in the basic embodiment shown in FIG. 5A, the front cushion 5 is a pad material 51 made of a synthetic resin foam and a bag-shaped trim 52 that covers the pad material 51 and has an open lower portion. It consists of and. The trim 52 has a folding allowance 52a in which a lower portion of the trim 52 covers the pad material 51 and hangs downward from a lower end portion of the pad material 51.

One of the male and female fastening tapes 53, 53 is sewn on the back side of the folding allowance 52a, and the bottom surface of the pad material 51 corresponds to the one fastening tape 53. Then, the other fastening tape 53 is attached, and the trim 52 is joined to the pad material 51 by fastening these fastening tapes 53, 53 to each other.

A locking member 54 is embedded in the pad material 51. The locking member 54 is formed by including a flat plate-shaped embedded plate 55 and a pair of left and right locking projections 56 projecting from the embedded plate 55.
6 is embedded in the pad material 51 so as to project downward from the bottom surface of the pad material 51.

The respective locking projections 56 are positioned so as to correspond to the front end locking holes 27 formed in the front bottom plate 23 of the support 2, and the front cushion 5 is attached to the bottom plate of the support 2. Each of the locking projections 56 is fitted into the distal end locking hole 27 in a state of being arranged on the front side 22, so that the mounting state of the distal side cushion 5 to the support body 2 is stabilized. Also,
An arrowhead-shaped locking head 56a is provided at the tip of the locking projection 56, so that the locking projection 56 fitted in the distal locking hole 27 is prevented from coming off.

The tip side cushion 5a of the first modified embodiment shown in FIG. 5B has the tip edge portion of the folding allowance 52a.
While the hook 53a is sewn in place of the fastening tape 53, the wire 51a is provided near the bottom in the pad material 51.
Is embedded, and the hook 52a is engaged with the wire 51a to suspend the trim 52 on the pad material 51. Other configurations of the tip side cushion 5a are similar to those of the basic embodiment described above.

The tip side cushion 5b of the second modified embodiment shown in FIG. 5C has the above-described fastening tape 53 and hook 5 at the tip edge portion of the folding margin 52a of the trim 52.
No locking means such as 3a is provided. Instead, the locking member 54a includes a flat plate 55a having the same area as the bottom surface of the pad material 51, and a locking projection 56 is provided on the flat plate 55a. And such a flat plate 5
5a is joined to the bottom surface of the pad material 51 by adhesion, hitting or the like. Other configurations are similar to those of the basic embodiment described above.

In the tip side cushion 5b of the second modified embodiment, after the pad material 51 is covered with the trim 52, the folding margin 52a is folded toward the surface of the flat plate 55a, and in this state, the locking projection 56 is formed. The folding allowance 52a, which has been folded by being fitted into the front end locking hole 27 of the support body 2, is sandwiched between the flat plate 55a and the front bottom plate 23 of the support body 2, and the trim 52 is subjected to the hanging process. An effect similar to that applied is obtained.

As shown in FIG. 1, the back cushion 6 is composed of a pad material 61 made of a synthetic resin foam and a bag-shaped trim 62 which covers the pad material 61 and whose lower portion is open. ing. The lower portion of the trim 62 is provided with a folding margin 62a that hangs downward from the lower end portion of the pad material 61. By folding the folding margin 62a toward the bottom surface of the pad material 61, the back cushion 6 is formed. To be formed. Then, the structure for joining the folded margin 62a to the bottom surface of the pad material 61 and the structure for attaching the back cushion 6 to the back locking hole 28 of the support body 2 are the same as those described above. Therefore, the description is omitted.

According to the cushion body 1a of the first embodiment, on the bottom plate 22 in the annular wall 21 of the support body 2, the separately prepared edge cushions 4 as the unit cushions 3, the tip side cushions 5, Since the cushion body 1a for the seat bottom is formed by arranging the rear side cushion 6 and the back side cushion 6, a trim is fitted into a hanging groove formed in the pad material as in the conventional case, and a clip or the like is formed. There is no need to perform a troublesome trim hanging operation such as hanging a trim on a wire embedded in a pad material via a coupling fitting, and each unit cushion 3 is preset on the bottom plate 22 of the support body 2 in a predetermined manner. The unit cushions 3 are mounted on the support body 2 by simply mounting them according to the arrangement of FIG. 3 and connecting the trim or pad material to the support body 2 via the connecting means. Cushion body 1a is formed extremely easily.

FIG. 6 is a perspective view showing a second embodiment of the cushion body for an automobile seat according to the present invention.
Is an exploded perspective view, and (B) is an assembled perspective view. In the second embodiment, the cushion body 1 is for a seat back. First, as shown in (a) of FIG. 6, the cushion body 1b is formed by including a support 20 made of synthetic resin and a plurality of unit cushions 3 mounted on the surface of the support 20. . In the present embodiment, as the unit cushion 3, a pair of width direction side cushions 40 are attached to both sides of the support body 20 in the width direction so as to extend in the vertical direction, and are disposed between the pair of side cushions. The upper and lower central cushions 50 and the upper and lower cushions 60 arranged on the distal end side of the support 20 are provided.

The supporting body 20 has a plurality of side engaging holes 260 for engaging the side cushions 40 arranged in two rows in series in the vertical direction on both sides of the supporting body 20. A plurality of central locking holes 270 for engaging the central cushions 50 are formed in the central portion. In addition, an upper locking hole 280 for engaging the upper cushion 60 is formed in the upper portion of the support body 20.

Each of the unit cushions 3 (side cushion 40, central cushion 50 and upper cushion 6)
0) is a pad material 31 made of a synthetic resin foam,
The pad material 31 is covered with a bag-shaped trim 32. The trim 32 covers the pad material 31, and a folding margin 32a is provided behind the trim 32. One or both of the pad material 31 and the trim 32 of the unit cushion 3 as described above is provided with a coupling means similar to that of the first embodiment.

Then, with the folding allowance 32a inside the side cushion 40 folded back to the back surface side of the side cushion 40, the side cushion 40 is connected to both sides of the support body 20 through the coupling means and the side locking holes 260. The side cushion 40 is supported by the side cushion 40 by locking the outside folding margin 32a to the back side through the side surface of the support 20 and locking the coupling means in the side locking hole 260.
It will be attached to the.

Regarding the central cushion 50,
All the folding allowances 32a are folded back and attached to the back surface side of the pad material 31, and the connecting means provided in the pad material 31 is fitted into the central locking hole 270 so that the central cushion 50 is located on the front surface side of the support body 20. It is in a state of being attached between the part cushions 40.

With respect to the upper cushion 60, only the portion of the folding allowance 32a which is in contact with the central cushion 50 is folded back to the back side, and the upper cushion 60 is engaged with the support body 20 through the upper engaging hole 280. Wear
Then, the folding allowance 32a of the other portion is folded back to the back surface side of the support body 20 so as to wrap around the edge of the support body 20 and locked to the support body 20, whereby the upper cushion 60 is attached to the support body 20. It becomes a state.

Then, the side cushion 40, the central cushion 50 and the upper cushion 60 are all attached to the support body 20 as described above, so that the cushion body 1b of the seat back as shown in FIG. Is obtained.

[0043]

According to the cushion body for an automobile seat according to claim 1 of the present invention, the cushion body is composed of a plurality of unit cushions in which pad materials are covered with trims, and a support body which supports each unit cushion. Conventionally, each unit cushion is attached to the support by locking a predetermined number of locking members formed on one or both of the pad material and the trim to the support. Like fitting the trim into the trim suspension groove recessed in the pad material and operating a heavy mounting tool to connect the trim and the wire embedded in the pad material with a coupling fitting such as an ohm clip. It is possible to manufacture the cushion body without performing a troublesome and skill-intensive work and suppressing the variation in product quality to be small.

Further, the three-dimensional shape of the unit cushion can be arbitrarily set, and it is not necessary to consider the recessed position of the hanging groove and the workability of the lifting work of the trim as in the conventional case. It has a great effect on increasing the degree of freedom in terms of design.

According to the cushion body for a vehicle seat according to claim 2 of the present invention, the unit cushion includes a U-shaped edge cushion for the seat bottom and a tip end side between both side portions of the edge cushion. Since it is a tip side cushion that is arranged and a back side cushion that is arranged on the back side, the edge cushion is attached along the edge on the support, and the space between both sides of this edge cushion is set. The seat bottom cushion body can be easily obtained by arranging the front side cushion and the back side cushion on the seat and attaching them to the support body.

According to the cushion body for an automobile seat according to claim 3 of the present invention, the unit cushions are a pair of side cushions attached to both side portions in the width direction of the seat back support so as to extend in the vertical direction. And the central cushion disposed between the pair of side cushions and the tip side cushion disposed on the tip side of the support, so that they extend vertically on both sides of the support. A side cushion is attached to the seat, a central cushion is arranged between the pair of side cushions, and the seat cushion is easily attached to the support body by further attaching the tip side cushion to the tip side of the support body. be able to.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a cushion body for an automobile seat according to the present invention.

FIG. 2 is an assembled perspective view of the cushion body of FIG.

FIG. 3 is a cross-sectional view taken along the line AA of the edge cushion shown in FIG. 1, where (a) is a state before the edge cushion is attached to the support, and (b) is the edge cushion supported by the support. It shows the state of being attached to the body.

FIG. 4 is an enlarged perspective view of a first hook.

5 is a cross-sectional view taken along the line BB of the front cushion shown in FIG. 1, in which (a) is a basic embodiment, (b) is a first modified embodiment, and (c) is a second modified embodiment. Shows.

FIG. 6 is a perspective view showing a second embodiment of the cushion body for an automobile seat according to the present invention, (A) is an exploded perspective view, and (B) is an assembled perspective view.

[Explanation of symbols]

 1, 1a, 1b Cushion body 2, 20 Support body 21 Annular wall 22 Bottom plate 23 Front bottom plate 23a Front inclined surface 24 Intermediate bottom plate 25 Rear bottom plate 25a Rear inclined surface 26 Edge locking hole 27 Tip locking hole 28 Back locking Hole 3 Unit cushion 31 Pad material 32 Trim 32a Folding margin 4 Edge cushion 41 Pad material 42 Trim 42a Inner folding margin 43 First hook 44 Locking protrusion 45 Second hook 5 Tip cushion 51 Pad material 52 Trim 53 Attachment Tape 54 Locking member 6 Back cushion 61 Pad material 62 Trim

Claims (3)

[Claims] 1. In a cushion body of an automobile seat, the surface of which is provided with unevenness so as to conform to the body shape of a seated person, a pad material is covered with trim, and a plurality of units are divided at a boundary portion of the unevenness. A cushion body is formed from a cushion and a support body that supports each unit cushion, and one or both of the pad material and the trim is provided with a predetermined number of locking members to trim the pad material. A cushion body for an automobile seat, wherein each unit cushion is attached to the support body by locking the locking member to the support body in a state of being covered with. 2. The cushion body is for a seat bottom, and as the unit cushion, a U-shaped edge cushion and a tip side provided on a tip side between both side portions of the edge cushion. The cushion body for a vehicle seat according to claim 1, further comprising a cushion and a back cushion disposed on the back side. 3. The cushion body is for a seat back, and as the unit cushion, a pair of side cushions attached to both side portions in the width direction of the support body so as to extend in the vertical direction, and a pair of these side cushions. The cushion body for an automobile seat according to claim 1, further comprising a central cushion disposed between the side cushions and a tip side cushion disposed on a tip side of the support body. .