JP2007054383A - Seat for vehicle and its production method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for vehicles and its production method which enable the firm fixation of a surface material on a cushion pad with a limited number of parts without arranging an insert wire. <P>SOLUTION: A plurality of grooves 25 and 26 of a pad body 20 is provided with through holes 27 piercing to a recess 24. Hanging pieces 41 to be inserted into the through holes 27 respectively are extended from the surface material 40. The hanging pieces 41 are inserted into the through holes 27 and the surface material 40 is forced into the grooves 25 and 26 so that the lower ends of the hanging pieces 41 are made slightly visible from the ceiling surface of the recess 24. A wire 50 is inserted into insertion parts 42 of the respective hanging pieces 41. Thereafter, an inserter 30 is fitted and mounted into the recess 24 and the seat upholstering can be fixed on a seat pad 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat having an improved skin suspension structure. The present invention also relates to a method for manufacturing the vehicle seat.

  I. The vehicle seat is provided with a vehicle seat pad, and the vehicle seat pad is generally made of a flexible polyurethane foam or a semi-rigid polyurethane foam, and an outer skin is mounted on the outer surface thereof.

  In this vehicle seat, the skin is drawn into a groove provided in the seat pad to form a suspended portion, the skin is brought into close contact with the pad to improve sitting comfort, and the surface of the seat pad is recessed. To make it look good.

  Conventionally, when forming a suspended portion on the skin of the seat pad, the insert wire 2 is embedded in the seat pad 1 and sewn on the back surface of the skin 3 as shown in FIGS. A suspension wire 5 is inserted through the lower edge of the suspension cloth 4, the suspension cloth 4 is drawn into the groove portion 7 of the seat pad 2, and is coupled to the insert wire 3 using a plurality of C-shaped rings 6. .

  The groove 7 is provided with a depth 7a at an interval, and the wire 3 is exposed in the depth 7a. Corresponding to the depth 7a, the hanging cloth 4 is provided with a ring through hole 4a, and the C ring 6 is inserted into the ring through hole 4a and hung on the wire 3. The C-ring 6 is bent into a ring shape using a tool called a hogglinger, whereby the suspension cloth 4 is fixed to the wire 3.

II. Japanese Patent Laid-Open No. 11-34710 discloses a seating sensor in which a recess is provided upward from the bottom surface of the seat pad body, and a nest is inserted into the recess, and the sensor 2 is installed on the top surface of the nest. With seats listed.
JP 11-34710 A

The vehicle seat shown in FIGS. 12 to 14 has the following disadvantages.
(1) The insert wire 2, the suspension wire 5 in the suspension cloth 4, the C-ring 6 and the like are used for fixing the skin. The number of members for fixing the skin is large, the cost is high, and the weight is also increased. .
(2) In order to bend the C-ring 6, a large and heavy tool called a Hogglinger is required, which places a heavy burden on the operator.
(3) Since it is necessary to insert the insert wire 2 into the seat pad 1, the moldability may be deteriorated.
(4) If the circumference of the urethane meat near the insert wire 2 is poor, the pullout strength of the wire 2 may be reduced.
(5) The seat pad having the insert wire 2 is not suitable for recycling.

  The present invention solves the above-mentioned various problems, and provides a vehicle seat and a method of manufacturing the same that can firmly fix the skin to the seat pad with a small number of parts without providing an insert wire. Objective.

  The vehicle seat according to claim 1 is a vehicle seat in which a skin is provided on a surface of a seat pad, a suspension piece is extended from the skin, and the suspension piece is locked to a support in the seat pad. In the vehicle seat, the seat pad includes a pad main body provided with a recess recessed upward from the bottom surface, and an insertion body inserted into the recess. Is provided with a through hole penetrating from the upper surface to the ceiling surface of the recess, the suspension piece is inserted through the through hole, and the support is disposed along the ceiling surface of the recess. The lower end of the suspension piece is locked to the support.

  According to a second aspect of the present invention, in the vehicle seat according to the first aspect, the support is a linear body.

  According to a third aspect of the present invention, in the vehicle seat according to the second aspect, the linear body is a wire.

  A vehicle seat according to a fourth aspect is the vehicle seat according to the second or third aspect, wherein the suspension piece has a linear body insertion portion at a lower end, and the linear body is inserted into the linear body insertion portion. It is characterized by this.

  According to a fifth aspect of the present invention, the vehicle seat according to the fourth aspect is characterized in that the hanging piece is made of a cloth-like material, and the linear body insertion portion is provided by folding.

  A vehicle seat according to a sixth aspect is the vehicle seat according to any one of the first to fifth aspects, wherein the plurality of through holes are linearly arranged.

  According to a seventh aspect of the present invention, the vehicle seat according to the sixth aspect is characterized in that the through hole has a slit shape, and the longitudinal direction of the slit is along the arrangement direction.

  The method for manufacturing a vehicle seat according to claim 8 is the method for manufacturing a vehicle seat according to any one of claims 1 to 7, wherein the suspension piece is inserted into the through hole and the skin is inserted into the pad body. Then, the lower end of the suspension piece is locked to the support body, and then the insertion body is inserted into the recess.

  In the present invention, a recess is provided on the bottom surface of the pad body, and a through hole is provided from the top surface of the pad body to the ceiling surface of the recess. A suspension piece connected to the skin is inserted into the through hole, and the suspension piece is locked to a support body along the recess ceiling surface, whereby the skin is fixed to the seat pad.

  In the present invention, since the insert wire is not provided on the seat pad, various problems caused by the insert wire do not occur. Further, no C-ring is used, and no hoggling is required, so that the skin fixing work is easy.

  In the present invention, the skin can be fixed to the cushion pad with fewer parts than the conventional example shown in FIGS.

  In addition, since an insertion body is inserted in a pad main body, a support body is concealed.

  The support is preferably a linear body such as a wire. In order to lock the suspension piece with this linear body, it is preferable to provide a linear body insertion portion at the lower end of the suspension piece and insert the linear body into this insertion portion. This configuration is simple, and the suspension piece can be firmly locked. In particular, the wire can be passed very easily through the linear body insertion portion of the suspension piece.

  In order to provide the linear body insertion part on the hanging piece, it is preferable to fold the cloth-like material constituting the hanging piece, and to further provide a concave shape on the ceiling surface of the concave part through which the wire passes so that the wire does not shift from side to side. is there.

  Hereinafter, embodiments will be described with reference to the drawings.

  1 is a plan view of a vehicle seat according to an embodiment, FIG. 2 and FIG. 3 (a) are sectional views taken along lines II-II and III-III of FIG. 1, FIG. 3 (b). ) Is an enlarged view of portion B in FIG. 3 (a), FIG. 4 is a sectional view taken along line IV-IV in FIG. 3 (b), and FIG. 5 is a plan view of the pad body of the vehicle seat according to the embodiment. 6 and 9 are cross-sectional views taken along lines VI-VI and IX-IX in FIG. 5, FIG. 10 is a schematic cross-sectional view showing the operation of attaching the epidermis in the embodiment, and FIG. FIG. 11 (a) is a perspective view of the vicinity of the hanging piece of the skin, and FIG. 11 (b) is a perspective view showing an engaged state between the hanging piece and the wire. FIG. 15 is a sectional view of the same part as FIG. 3 (b), showing another embodiment.

  As shown in FIGS. 1 to 4, the vehicle seat 10 has a seat pad and a skin 40 attached to the seat pad. The seat pad includes a pad main body 20 and an insertion body 30 fitted to the pad main body 20.

  The pad main body 20 includes a bottom part 21, a thigh part 22, a side part 23, and a bottom recess 24.

  The recess 24 is recessed upward from the bottom surface of the pad body 20 below the bottom part 21. In this embodiment, the planar view shape of the recess 24 and the insertion body 30 is a square, but is not limited thereto.

  On the upper surface of the pad main body 20, a groove 25 in the front-rear direction and a groove 26 in the width direction are provided.

  When a vehicle seat pad that emphasizes cushioning or a soft urethane having a thickness of 5 mm or more or the like is used as a cover material on the seat pad, the pad body 20 is made of a low hardness material and is inserted. It is preferable to use a high hardness material as a constituent material of the filler 30.

In that case, as a constituent material of the cushion pad body 20, a polyurethane foam having a core density of 25 to 50 kg / m ³ and a 25% hardness of 15 to 25 kgf / φ200 is desirable, and the insert 30 has a core density of 45 to 70 kg / m ³ , A polyurethane foam having a 25% hardness of 16 to 30 kgf / φ200 is desirable.

On the other hand, in the case of a cushion pad that requires a soft feeling on the surface or a seat pad that aims to improve the initial seating feeling, the constituent material of the pad body 20 includes a core density of 40 to 70 kg / m ³ , 25% hardness 8 A polyurethane foam having a density of ˜20 kgf / φ200 is desirable, and the insert 30 is preferably a polyurethane foam having a core density of 25-55 kg / m ³ and a 25% hardness of 16-30 kgf / φ200.

  In this vehicle seat pad, the length of the recess 24 and the insertion body 30 in the front-rear direction is 150 to 500 mm, particularly 200 to 400 mm, and the depth of the recess 24 is the seat pad 20 in the bottom part 21. The thickness is preferably 30 to 90%, particularly 60 to 80%.

  When the pad main body 20 and the insertion body 30 are bonded together, a urethane adhesive or the like can be used as the adhesive. In addition, the recess 24 may have a shape in which the entrance side is narrowed or an interference design, which makes it difficult for the insertion body 30 to fall off and eliminates the need for an adhesive or reduces the amount of adhesive. Can do.

  In addition, the joining method of the pad main body 20 and the insertion body 30 is not limited to adhesion, and may be joined by a flat fastener such as an adhesive or a magic tape (trade name) or a tag pin such as a resin.

  Each of the grooves 25 and 26 is provided with a plurality of through holes 27 penetrating to the recess 24. Each through-hole 27 has a slit shape, and the longitudinal direction of the slit extends in the longitudinal direction of the groove 25 or 26.

  A suspension piece 41 made of a cloth-like material and extending through the through hole 27 extends from the skin 40. As the cloth-like material, a walliff, a cold koji or a cloth is suitable. The resin sheet or clip may be lowered. The lower end side of the hanging piece 41 is an insertion portion 42 for the wire 50 as a linear body.

  As shown in FIG. 11, the insertion portion 42 is formed by folding the suspension piece 41, and has a tunnel shape penetrating from one side of the suspension piece 41 to the other side.

  When attaching the skin 40 to the pad main body 20, the suspension pieces 41 are inserted into the through holes 27, the skin 40 is pushed into the grooves 26, 27, and the lower end of the suspension piece 41 is slightly peeked from the ceiling surface of the recess 24. Let it come out. Then, the wire 50 is inserted through the insertion portion 42 of each hanging piece 41. The wire 50 has a length that straddles a plurality (three in the figure) of the through holes 27 of the grooves 25 or 26. In this embodiment, the wire 50 disposed below the groove 25 has a length slightly shorter than the front-rear width of the recess 24, and the wire 50 disposed below the groove 26 is smaller than the lateral width of the recess 24. Also have a slightly shorter length.

  Thus, when the wire 50 is inserted into the insertion portion 42 of each suspension piece 41, the skin 40 is in a suspended state in which it is drawn sufficiently deeply into the grooves 25 and 26.

  Thereafter, the seat pad 10 is obtained by fitting and inserting the insert 30 into the recess 24.

  As the skin 40, woven fabric, artificial leather, natural leather, or the like can be used. The material of the hanging piece 41 may be the same as or different from that of the skin 40. The suspension piece 41 is connected to the epidermis 40 by stitching, adhesion, or the like.

This vehicle seat and its manufacturing method have the following characteristics.
(1) There are few parts for hanging the skin.
(2) Therefore, it is possible to reduce costs and reduce the weight of the vehicle seat pad.
(3) Heavy tools such as Hogglinger are not required and manufacturing work is easy.
(4) No insert wire is used for the vehicle seat pad, and the wire 50 can be easily removed, so that the vehicle seat pad can be easily recycled.
(5) Since there is no insert wire, the urethane can be sufficiently wound around when molding the seat pad body, etc., and no defects will occur.
(6) The through-hole 27 can be formed with high positional accuracy by a mold, and the work of hanging the skin is good.
(7) The epidermis 40 is firmly held by the epidermis of the pad body and is surely suspended to a deep position in the groove.

  In addition, the said embodiment is an example of this invention and can take structures other than illustration in this invention. For example, a recess for accommodating the wire 50 may be formed on the ceiling surface of the recess 24 of the pad main body 20 or the upper surface of the insertion body 30. Moreover, you may suspend a suspension piece with components other than a wire. For example, one half (for example, female side) of the flat fastener may be attached to the hanging piece, and the other half (for example, male) of the flat fastener may be engaged in the recess. As shown in FIG. 15, the place where the wire 50 enters may be a triangular or substantially semicircular cross-sectional shape. In addition, this structure may be employ | adopted for all the 3 groove | channels in embodiment of illustration, and this structure may be employ | adopted only for the 1 or 2 groove | channel.

  Although the above embodiment is a cushion pad, it may be a back pad.

  In the present invention, a resin clip 41 </ b> A shown in FIG. 16 may be used instead of the hanging piece 41.

It is a top view of the vehicular seat concerning an embodiment. It is sectional drawing which follows the II-II line of FIG. 3 (a) is a cross-sectional view taken along line III-III in FIG. 1, and FIG. 3 (b) is an enlarged view of portion B in FIG. 3 (a). FIG. 4 is a sectional view taken along line IV-IV in FIG. It is a top view of the pad main body of the vehicle seat pad which concerns on embodiment. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII sectional view taken on the line of FIG. It is the VIII-VIII sectional view taken on the line of FIG. It is the IX-IX sectional view taken on the line of FIG. It is typical sectional drawing which shows the mounting | wearing operation | work of the skin in embodiment. FIG. 11 (a) is a perspective view of the vicinity of the hanging piece of the skin, and FIG. 11 (b) is a perspective view showing an engaged state between the hanging piece and the wire. It is explanatory drawing of a prior art example. It is explanatory drawing of a prior art example. It is explanatory drawing of a prior art example. It is sectional drawing of the same part as FIG.3 (b) in another embodiment. It is a perspective view of a resin clip.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle seat pad 20 Pad main body 25, 26 Groove 27 Through-hole 30 Insert body 40 Skin 41 Hanging piece 50 Wire

Claims (8)

A vehicle seat having a skin provided on the surface of the seat pad,
In the vehicle seat in which a suspension piece is extended from the skin, and the suspension piece is locked to a support in a seat pad,
The seat pad comprises a pad body provided with a recess recessed upward from the bottom surface, and an insertion body inserted into the recess,
The pad body is provided with a through-hole penetrating from the upper surface to the ceiling surface of the recess,
The suspension piece is inserted through the through hole;
The vehicle seat, wherein the support is disposed along a ceiling surface of the recess, and a lower end portion of the suspension piece is locked to the support.   The vehicle seat according to claim 1, wherein the support is a linear body.   The vehicle seat according to claim 2, wherein the linear body is a wire.   4. The vehicle seat according to claim 2, wherein the hanging piece has a linear body insertion portion at a lower end, and the linear body is inserted into the linear body insertion portion.   5. The vehicle seat according to claim 4, wherein the hanging piece is made of a cloth-like material, and the linear body insertion portion is provided by folding.   The vehicle seat according to any one of claims 1 to 5, wherein a plurality of through holes are linearly arranged.   The vehicle seat according to claim 6, wherein the through hole has a slit shape, and the longitudinal direction of the slit is along the arrangement direction. The method for manufacturing a vehicle seat according to any one of claims 1 to 7,
After the hanging piece is inserted through the through hole and the epidermis is mounted on the pad body,
Locking the lower end of the suspension piece to the support,
Then, the manufacturing method of the vehicle seat characterized by inserting the said insertion body in the said recess.

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