JP2021146805A - Pad structure air-conditioning seat - Google Patents

Pad structure air-conditioning seat Download PDF

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Publication number
JP2021146805A
JP2021146805A JP2020046513A JP2020046513A JP2021146805A JP 2021146805 A JP2021146805 A JP 2021146805A JP 2020046513 A JP2020046513 A JP 2020046513A JP 2020046513 A JP2020046513 A JP 2020046513A JP 2021146805 A JP2021146805 A JP 2021146805A
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Japan
Prior art keywords
flow path
pad
cushion pad
protrusion
cushion
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JP2020046513A
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Japanese (ja)
Inventor
了 白井
Satoshi Shirai
了 白井
圭介 鈴木
Keisuke Suzuki
圭介 鈴木
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Suzuki Motor Corp
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Suzuki Motor Corp
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Priority to JP2020046513A priority Critical patent/JP2021146805A/en
Priority to DE102021101802.1A priority patent/DE102021101802A1/en
Publication of JP2021146805A publication Critical patent/JP2021146805A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/771—Seats

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Seats For Vehicles (AREA)

Abstract

To provide a pad structure of an air-conditioning seat, capable of suppressing an increase in manufacturing man hours and costs, and reducing the occurrence of molding failure due to accumulation of gas.SOLUTION: A blowing part 40 and a reinforcement surface material 46 are provided in a rear face of a cushion pad 4A of an air-conditioning seat. A plurality of flow channels 42a-42i, and projections 45a-45d positioned between the respective flow channels 42a-42i are formed in the blowing part 40. The reinforcement surface material 46 has a base part 46a for covering a part positioned outside the blowing part 40 in the rear face of the cushion pad 4A, and a first extension part 46b extending from the base part 46a to the first flow channel 42a positioned between the projections 45a-45d and the base part 46a. The first extension part 46b covers a side wall part positioned at a base part 46a side of the first flow channel 42a, and a bottom wall part of the first flow channel 42a, and the tip part reaches a side wall part positioned at the projections 45a-45d side of the first flow channel 42a.SELECTED DRAWING: Figure 4

Description

本発明は、車両用の空調シートのパッド構造に関する。 The present invention relates to a pad structure of an air conditioning sheet for a vehicle.

自動車等の車両に搭載される座席シートには、例えば、送風ファンなどの空調装置を設置すると共に、座部や背もたれを構成するパッドに送風用の溝を形成し、該溝を通してシート表面に風を送る又はシート表面から風を吸い込むことで、着座乗員の快適性を向上させるようにした空調シートが知られている（例えば、特許文献１参照）。 For example, an air conditioner such as a blower fan is installed in the seat seat mounted on a vehicle such as an automobile, and a groove for blowing air is formed in the pad constituting the seat and the backrest, and the air is blown on the seat surface through the groove. There is known an air-conditioning seat that improves the comfort of a seated occupant by sending a seat or sucking wind from the seat surface (see, for example, Patent Document 1).

特許文献１に記載されている空調式車両用シートパッドのクッションパッドは、パッド本体と、該パッド本体の底面から上方に向かって凹陥した凹所に勘合された装填体とからなる。パッド本体には、座面から凹所の天井面にまで貫通する空孔が形成され、装填体の上面及び側面には、空気流通用の溝が形成されている。 The cushion pad of the air-conditioned vehicle seat pad described in Patent Document 1 includes a pad main body and a loading body fitted in a recess recessed upward from the bottom surface of the pad main body. The pad body is formed with holes penetrating from the seat surface to the ceiling surface of the recess, and grooves for air flow are formed on the upper surface and the side surface of the loading body.

上記装填体の成形には、キャビティの底面に一端側から他端側へ向かう方向に延在する凸条が設けられた下型が使用される。この下型は、キャビティの底面が一端側から他端側に向かって下り勾配となるように傾けられ、ウレタン液が一端側に供給された後に型締めされて、装填体の発泡成形が行われる。これにより、ウレタン液がキャビティ底面をスムーズに流れ下るようになり、キャビティの隅部でのエア溜まりの発生が防止されている。 For molding the loading body, a lower mold having protrusions extending from one end side to the other end side on the bottom surface of the cavity is used. This lower mold is tilted so that the bottom surface of the cavity has a downward gradient from one end side to the other end side, and after the urethane liquid is supplied to one end side, the mold is compacted to perform foam molding of the load. .. As a result, the urethane liquid flows smoothly down the bottom surface of the cavity, and the generation of air pools at the corners of the cavity is prevented.

特開２００８−２００９４２号公報Japanese Unexamined Patent Publication No. 2008-24912

しかしながら、特許文献１に記載されているようなクッションパッドの構造では、空気流通用の溝が形成される装填体をパッド本体とは別に成形する必要があるため、製造工数及びコストの増加が課題であった。また、ウレタン液の発泡によって発生するガス等が金型の外部に排出されずにキャビティ内に残留し、ガス溜まりによる成形不良（欠肉）が生じる可能性があり改善の余地があった。 However, in the structure of the cushion pad as described in Patent Document 1, since it is necessary to mold the loading body in which the groove for air flow is formed separately from the pad body, there is a problem that the manufacturing man-hours and the cost are increased. Met. Further, the gas or the like generated by the foaming of the urethane liquid is not discharged to the outside of the mold but remains in the cavity, and there is a possibility that molding defects (missing meat) may occur due to the gas accumulation, and there is room for improvement.

本発明はこのような実状に鑑みてなされたものであって、その目的は、製造工数及びコストの増加を抑制可能であり、且つ、ガス溜まりによる成形不良の発生を低減できる空調シートのパッド構造を提供することである。 The present invention has been made in view of such an actual situation, and an object of the present invention is a pad structure of an air-conditioning sheet capable of suppressing an increase in manufacturing man-hours and costs and reducing the occurrence of molding defects due to gas accumulation. Is to provide.

上記従来技術の有する課題を解決するために、本発明は、車両用の空調シートにおけるパッドの裏面に表面側に凹んだ溝状の複数の流路が形成されている送風部と、前記複数の流路の底壁部から前記パッドの表面に貫通する開口部と、前記パッドの裏面に設けられている補強面材と、を備えた空調シートのパッド構造を提供する。この空調シートのパッド構造は、前記パッドの前記送風部内に形成され、前記複数の流路の底壁部に対して前記パッドの裏面方向に突出し、各流路の間に位置している突出部を備える。また、前記補強面材は、前記パッドの裏面で前記送風部の外側に位置する部分を覆うベース部と、該ベース部から前記送風部の複数の流路のうちの前記突出部及び前記ベース部の間に位置する第１流路に向けて延び、該第１流路の前記ベース部側に位置する側壁部と前記第１流路の底壁部とを覆い、先端部分が前記第１流路の前記突出部側に位置する側壁部まで到達している第１延長部と、を有する。 In order to solve the problems of the prior art, the present invention includes a blower portion in which a plurality of groove-shaped flow paths recessed on the front surface side are formed on the back surface of a pad in an air conditioning sheet for a vehicle, and the plurality of air-conditioning portions. Provided is a pad structure of an air-conditioning sheet including an opening penetrating from a bottom wall portion of a flow path to the surface of the pad and a reinforcing surface material provided on the back surface of the pad. The pad structure of the air-conditioning sheet is formed in the blower portion of the pad, projects toward the back surface of the pad with respect to the bottom wall portions of the plurality of flow paths, and is located between the respective flow paths. To be equipped with. Further, the reinforcing surface material includes a base portion that covers a portion of the back surface of the pad that is located outside the blower portion, and the protrusion portion and the base portion of a plurality of flow paths from the base portion to the blower portion. It extends toward the first flow path located between the two, covers the side wall portion located on the base portion side of the first flow path and the bottom wall portion of the first flow path, and the tip portion is the first flow. It has a first extension portion that reaches a side wall portion located on the protruding portion side of the road.

上記のような本発明に係る空調シートのパッド構造によれば、パッドの裏面に複数の流路を有する送風部が形成されているので、従来の構造のようにパッド本体と装填体とを個別に成形する必要がなく、パッドと送風用の各流路とを一体に成形することが可能であり、製造工数及びコストの増加を抑制することができる。また、補強面材が、ベース部及び該ベース部から第１流路に向けて延びる第１延長部を有し、第１延長部により第１流路のベース部側の側壁部及び底壁部が覆われているので、パッドの発泡成形時に金型のキャビティ内で突出部の対応部分に集まってくる発泡ガス等が、補強面材の第１延長部及びベース部の中で分散及び吸収され、且つ／又は、第１延長部及びベース部の中を通して金型の外部に排出されるようになる。これにより、発泡成形時のガス溜まりによる成形不良の発生を低減することが可能になる。 According to the pad structure of the air-conditioning sheet according to the present invention as described above, since the blower portion having a plurality of flow paths is formed on the back surface of the pad, the pad body and the loading body are individually separated as in the conventional structure. It is possible to integrally mold the pad and each flow path for air conditioning without the need to mold the pad, and it is possible to suppress an increase in manufacturing man-hours and cost. Further, the reinforcing surface material has a base portion and a first extension portion extending from the base portion toward the first flow path, and the side wall portion and the bottom wall portion on the base portion side of the first flow path are provided by the first extension portion. Is covered, so that foam gas and the like that collect in the corresponding portion of the protrusion in the cavity of the mold during foam molding of the pad are dispersed and absorbed in the first extension portion and the base portion of the reinforcing surface material. And / or, it will be discharged to the outside of the mold through the first extension portion and the base portion. This makes it possible to reduce the occurrence of molding defects due to gas accumulation during foam molding.

本発明に係るパッド構造が適用される空調シートの概略構成を示す斜視図である。It is a perspective view which shows the schematic structure of the air-conditioning sheet to which the pad structure which concerns on this invention is applied. 第１実施形態のクッションパッドを表面側から見た斜視図である。It is a perspective view which looked at the cushion pad of 1st Embodiment from the surface side. 第１実施形態のクッションパッドを裏面側から見た斜視図である。It is a perspective view which looked at the cushion pad of 1st Embodiment from the back surface side. 図３における送風部の周辺を拡大して示した斜視図である。FIG. 3 is an enlarged perspective view showing the periphery of the blower portion in FIG. 図３における送風部の周辺を拡大して示した平面図である。FIG. 3 is an enlarged plan view showing the periphery of the blower portion in FIG. 第１実施形態のクッションパッド及び発泡成形用の金型を図３のＡ−Ａ線に沿って切断した断面図である。It is sectional drawing which cut the cushion pad and the mold for foam molding of 1st Embodiment along the line AA of FIG. 第１実施形態のクッションパッドの発泡成形過程を説明する図である。It is a figure explaining the foam molding process of the cushion pad of 1st Embodiment. 第２実施形態のクッションパッドにおける送風部の周辺を裏面側から見た斜視図である。It is a perspective view which looked at the periphery of the blower part in the cushion pad of 2nd Embodiment from the back side. 第２実施形態のクッションパッド及び発泡成形用の金型の断面図である。It is sectional drawing of the cushion pad of 2nd Embodiment and the mold for foam molding. 第３実施形態のクッションパッド及びクッションフレームの断面図である。It is sectional drawing of the cushion pad and the cushion frame of 3rd Embodiment. 第３実施形態のクッションパッド及びクッションフレームを車両下方から見た平面図である。FIG. 5 is a plan view of the cushion pad and the cushion frame of the third embodiment as viewed from below the vehicle. 第４実施形態のクッションパッドにおける送風部の周辺を裏面側から見た斜視図である。It is a perspective view which looked at the periphery of the blower part in the cushion pad of 4th Embodiment from the back surface side. 応用例によるバックパッドを裏面側から見た斜視図である。It is a perspective view which looked at the back pad by an application example from the back side.

以下、本発明を図示の実施の形態に基づいて詳細に説明する。
［空調シートの構造］
図１は、本発明に係るパッド構造が適用される空調シートの概略構成を示す斜視図である。なお、図において、矢印Ｆｒ方向は車両（空調シート）前後方向で車両前方を示し、矢印Ｏ方向は車両幅方向で車両外側を示し、矢印Ｕ方向は車両上下方向で車両上方を示している。 Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
[Structure of air conditioning sheet]
FIG. 1 is a perspective view showing a schematic configuration of an air conditioning sheet to which the pad structure according to the present invention is applied. In the figure, the arrow Fr direction indicates the front of the vehicle in the front-rear direction of the vehicle (air conditioning seat), the arrow O direction indicates the outside of the vehicle in the vehicle width direction, and the arrow U direction indicates the upper part of the vehicle in the vehicle vertical direction.

図１において、空調シート１は、座部を構成するシートクッション部２と、背もたれを構成するシートバック部３と、シートクッション部２とシートバック部３のそれぞれを覆って設置される図示を省略したシート表皮とを備えている。シートクッション部２は、ウレタン材料を用いて発泡成形されたクッションパッド４と、該クッションパッド４を支えるクッションフレーム５と、を有している。クッションパッド４の表面（着座面）における車両前後方向の前側部分には、送風用の複数の開口部４１，４３ａが形成されている。クッションフレーム５における車両前後方向の前側で車両幅方向の中央部分には、図示を省略した空調装置（例えば、送風ファンなど）が設置されている。 In FIG. 1, the air-conditioning seat 1 is not shown to be installed so as to cover each of the seat cushion portion 2 constituting the seat portion, the seat back portion 3 constituting the backrest, the seat cushion portion 2 and the seat back portion 3. It is equipped with a cushioned seat skin. The seat cushion portion 2 has a cushion pad 4 foam-molded using a urethane material, and a cushion frame 5 that supports the cushion pad 4. A plurality of openings 41, 43a for blowing air are formed on the front side portion of the cushion pad 4 in the front-rear direction of the vehicle on the surface (seat surface). An air conditioner (for example, a blower fan or the like) (not shown) is installed on the front side of the cushion frame 5 in the front-rear direction of the vehicle and in the center portion in the width direction of the vehicle.

上記シートクッション部２と同様に、シートバック部３は、ウレタン材料を用いて発泡成形されたバックパッド６と、該バックパッド６を支えるバックフレーム７と、を有している。バックパッド６の表面（背もたれ面）における車両上下方向の中央部分には、送風用の複数の開口部６１が形成されている。バックフレーム７における車両上下方向の上部で車両幅方向の中央部分には、図示を省略した空調装置が設置されている。 Similar to the seat cushion portion 2, the seat back portion 3 has a back pad 6 foam-molded using a urethane material and a back frame 7 that supports the back pad 6. A plurality of openings 61 for blowing air are formed in the central portion of the surface (backrest surface) of the back pad 6 in the vertical direction of the vehicle. An air conditioner (not shown) is installed in the upper part of the back frame 7 in the vertical direction of the vehicle and in the central portion in the width direction of the vehicle.

［第１実施形態］
図２及び図３は、本発明の第１実施形態によるパッド構造を適用したクッションパッドの外観を示しており、図２が表面側から見た斜視図、図３が裏面側から見た斜視図である。また、図４及び図５は、図３における送風部の周辺を拡大して示しており、図４が裏面側から見た斜視図、図５が裏面側から見た平面図である。 [First Embodiment]
2 and 3 show the appearance of the cushion pad to which the pad structure according to the first embodiment of the present invention is applied. FIG. 2 is a perspective view seen from the front side, and FIG. 3 is a perspective view seen from the back side. Is. 4 and 5 show an enlarged view of the periphery of the blower portion in FIG. 3, FIG. 4 is a perspective view seen from the back surface side, and FIG. 5 is a plan view seen from the back surface side.

図２〜図５に示すように、第１実施形態のクッションパッド４Ａの裏面には、車両前後方向の前側部分に送風部４０が設けられている。この送風部４０内には、クッションパッド４Ａの表面側に凹んだ溝状の複数（ここでは、例えば９本）の流路４２ａ〜４２ｉが形成されている。第１実施形態では、車両幅方向に延びる流路（以下、「幅方向流路」とする）として、第１流路４２ａ、第３流路４２ｃ、第４流路４２ｄ及び第５流路４２ｅが形成されている。また、車両前後方向に延びる流路（以下、「縦方向流路」とする）として、第２流路４２ｂ、第６流路４２ｆ、第７流路４２ｇ、第８流路４２ｈ及び第９流路４２ｉが形成されている。 As shown in FIGS. 2 to 5, on the back surface of the cushion pad 4A of the first embodiment, a blower portion 40 is provided on the front side portion in the front-rear direction of the vehicle. In the blower portion 40, a plurality of groove-shaped (here, for example, nine) flow paths 42a to 42i recessed on the surface side of the cushion pad 4A are formed. In the first embodiment, as the flow path extending in the vehicle width direction (hereinafter referred to as "width direction flow path"), the first flow path 42a, the third flow path 42c, the fourth flow path 42d, and the fifth flow path 42e Is formed. Further, as flow paths extending in the front-rear direction of the vehicle (hereinafter referred to as "vertical flow paths"), the second flow path 42b, the sixth flow path 42f, the seventh flow path 42g, the eighth flow path 42h, and the ninth flow path. Road 42i is formed.

クッションパッド４Ａの前述した複数の開口部４１は、ここでは例えば、第６乃至第９流路４２ｆ〜４２ｉの両端部分、及び該各流路４２ｆ〜４２ｉの延長線上にそれぞれ配置されている。各開口部４１は、当該流路の底壁部からクッションパッド４Ａの表面に貫通するように形成されている。 The above-mentioned plurality of openings 41 of the cushion pad 4A are arranged here, for example, on both end portions of the sixth to ninth flow paths 42f to 42i and on extension lines of the respective flow paths 42f to 42i. Each opening 41 is formed so as to penetrate the surface of the cushion pad 4A from the bottom wall portion of the flow path.

送風部４０内の車両前方側で車両幅方向の中央部分には、クッションパッド４Ａの裏面方向に凸に形成された中央突出部４３が設けられている。第４流路４２ｄ及び第５流路４２ｅは、中央突出部４３を挟んで車両幅方向に延びている。換言すると、送風部４０内における車両前方側の端部には、中央突出部４３により２つの部分に分けられた幅方向流路（第４流路４２ｄ及び第５流路４２ｅ）が形成されている。また、中央突出部４３には、頂面からクッションパッド４Ａの表面に貫通する開口部４３ａが形成されている。この開口部４３ａは、中央突出部４３の頂面に形成された細溝４３ｂを介して第３流路４２ｃに繋がっている。 A central protruding portion 43 formed to be convex in the back surface direction of the cushion pad 4A is provided at the central portion in the vehicle front side in the blower portion 40 in the vehicle width direction. The fourth flow path 42d and the fifth flow path 42e extend in the vehicle width direction with the central protrusion 43 interposed therebetween. In other words, a widthwise flow path (fourth flow path 42d and fifth flow path 42e) divided into two parts by a central protrusion 43 is formed at an end portion on the front side of the vehicle in the blower portion 40. There is. Further, the central protrusion 43 is formed with an opening 43a that penetrates from the top surface to the surface of the cushion pad 4A. The opening 43a is connected to the third flow path 42c via a narrow groove 43b formed on the top surface of the central protrusion 43.

第３流路４２ｃは、中央突出部４３の車両後方側に位置し、車両幅方向に延びている。第３流路４２ｃの両端部は、車両幅方向で第４流路４２ｄの一部及び第５流路４２ｅの一部と重なる位置に形成されている。第３流路４２ｃの底壁部は、車両後方に向かうに従ってクッションパッド４Ａの裏面方向に傾斜している。第４流路４２ｄ及び第５流路４２ｅの各底壁部は、第３流路４２ｃの底壁部よりもクッションパッド４Ａの表面側に位置している。つまり、第３流路４２ｃと第４流路４２ｄ及び第５流路４２ｅとは、段違いに形成されている。第３流路４２ｃと第４流路４２ｄ及び第５流路４２ｅとの間には、中央突出部４３に隣接して連接部４４が形成されており、この連接部４４によって、第３流路４２ｃと第４流路４２ｄ及び第５流路４２ｅとが送風可能に接続されている。 The third flow path 42c is located on the rear side of the vehicle of the central protrusion 43 and extends in the vehicle width direction. Both ends of the third flow path 42c are formed at positions that overlap a part of the fourth flow path 42d and a part of the fifth flow path 42e in the vehicle width direction. The bottom wall portion of the third flow path 42c is inclined toward the back surface of the cushion pad 4A toward the rear of the vehicle. Each bottom wall portion of the fourth flow path 42d and the fifth flow path 42e is located on the surface side of the cushion pad 4A with respect to the bottom wall portion of the third flow path 42c. That is, the third flow path 42c, the fourth flow path 42d, and the fifth flow path 42e are formed in a stepped manner. A connecting portion 44 is formed between the third flow path 42c, the fourth flow path 42d, and the fifth flow path 42e adjacent to the central protrusion 43, and the connecting portion 44 causes the third flow path. The 42c, the fourth flow path 42d, and the fifth flow path 42e are connected so as to be able to blow air.

第３流路４２ｃの車両後方側には第２流路４２ｂが形成されている。第２流路４２ｂは、第３流路４２ｃにおける車両幅方向の中央部から車両後方に延びており、その先端部分（後方側端部）が第１流路４２ａと交差している。第１流路４２ａは、送風部４０内における車両後方側の端部に位置し、車両幅方向に送風部４０に亘って延びている。 A second flow path 42b is formed on the vehicle rear side of the third flow path 42c. The second flow path 42b extends rearward from the central portion of the third flow path 42c in the vehicle width direction, and its tip portion (rear side end portion) intersects the first flow path 42a. The first flow path 42a is located at the rear end of the blower portion 40 on the rear side of the vehicle, and extends over the blower portion 40 in the vehicle width direction.

第１流路４２ａの幅、即ち、第１流路４２ａの対向する側壁部の間の距離は、幅方向流路の中で最も狭くなっている。ここでは、幅方向流路について、車両前方に向かうに従って各流路の幅が広くなるように形成されている。具体的に、幅方向流路である第１流路４２ａ、第３流路４２ｃ、第４流路４２ｄ及び第５流路４２ｅそれぞれの幅の大小関係は、第１流路＜第３流路＜第４流路＝第５流路、となっている。ただし、幅方向流路の幅の大小関係はこれに限定されない。 The width of the first flow path 42a, that is, the distance between the opposite side wall portions of the first flow path 42a is the narrowest in the width direction flow path. Here, the width direction flow path is formed so that the width of each flow path becomes wider toward the front of the vehicle. Specifically, the magnitude relationship of the widths of the first flow path 42a, the third flow path 42c, the fourth flow path 42d, and the fifth flow path 42e, which are the width direction flow paths, is such that the first flow path <third flow path. <Fourth flow path = fifth flow path. However, the magnitude relationship of the width of the flow path in the width direction is not limited to this.

第１流路４２ａと第４流路４２ｄとの間には、縦方向流路である第６流路４２ｆと第８流路４２ｈとが形成されている。また、第１流路４２ａと第５流路４２ｅとの間には、縦方向流路である第７流路４２ｇと第９流路４２ｉとが形成されている。 A sixth flow path 42f and an eighth flow path 42h, which are longitudinal flow paths, are formed between the first flow path 42a and the fourth flow path 42d. Further, between the first flow path 42a and the fifth flow path 42e, a seventh flow path 42g and a ninth flow path 42i, which are longitudinal flow paths, are formed.

第６流路４２ｆは、第２流路４２ｂに対して車両幅方向の外側に位置し、第２流路４２ｂ及び第３流路４２ｃとの間に第１突出部４５ａを挟んで車両前後方向に延びている。第６流路４２ｆの両端部は、第１流路４２ａ及び第４流路４２ｄと交差している。 The sixth flow path 42f is located outside the vehicle width direction with respect to the second flow path 42b, and sandwiches the first protrusion 45a between the second flow path 42b and the third flow path 42c in the vehicle front-rear direction. Extends to. Both ends of the sixth flow path 42f intersect the first flow path 42a and the fourth flow path 42d.

第１突出部４５ａは、隣接する各流路４２ａ〜４２ｄ，４２ｆの底壁部に対してクッションパッド４Ａの裏面方向に突出し、各流路４２ａ〜４２ｄ，４２ｆの間に位置している。具体的には、第１突出部４５ａの頂面は、クッションパッド４Ａの裏面と同程度の高さに位置している。また、第１突出部４５ａの側面は、第１突出部４５ａを取り囲んでいる各流路４２ａ〜４２ｄ，４２ｆの側壁部によって形成されている。換言すると、第１突出部４５ａは、各流路４２ａ〜４２ｄ，４２ｆ間の隔壁を構成している。さらに、第１突出部４５ａの頂面は、クッションパッド４Ａの裏面側から見た平面視で、車両幅方向の中央側（第２流路４２ｂ側）に突出した突部を有する略Ｌ字状に形成されている。第１突出部４５ａの頂面の突部は、第１乃至第３流路４２ａ〜４２ｃの各側壁部に接して囲まれており、その一部が車両幅方向で中央突出部４３と重なるように配置されている。 The first projecting portion 45a projects toward the back surface of the cushion pad 4A with respect to the bottom wall portions of the adjacent flow paths 42a to 42d, 42f, and is located between the flow paths 42a to 42d, 42f. Specifically, the top surface of the first protruding portion 45a is located at the same height as the back surface of the cushion pad 4A. Further, the side surface of the first protruding portion 45a is formed by the side wall portions of the flow paths 42a to 42d, 42f surrounding the first protruding portion 45a. In other words, the first protruding portion 45a constitutes a partition wall between the flow paths 42a to 42d and 42f. Further, the top surface of the first protruding portion 45a has a substantially L-shape having a protruding portion protruding toward the center side (second flow path 42b side) in the vehicle width direction in a plan view seen from the back surface side of the cushion pad 4A. Is formed in. The protrusion on the top surface of the first protrusion 45a is surrounded by contacting each side wall portion of the first to third flow paths 42a to 42c, and a part thereof overlaps with the central protrusion 43 in the vehicle width direction. Is located in.

第７流路４２ｇは、第２流路４２ｂに対して車両幅方向の内側（中央側）に位置し、第２流路４２ｂ及び第３流路４２ｃとの間に第２突出部４５ｂを挟んで車両前後方向に延びている。第７流路４２ｇの両端部は、第１流路４２ａ及び第５流路４２ｅと交差している。 The seventh flow path 42g is located inside (center side) in the vehicle width direction with respect to the second flow path 42b, and sandwiches the second protrusion 45b between the second flow path 42b and the third flow path 42c. It extends in the front-rear direction of the vehicle. Both ends of the seventh flow path 42g intersect the first flow path 42a and the fifth flow path 42e.

第２突出部４５ｂは、隣接する各流路４２ａ〜４２ｃ，４２ｅ，４２ｇの底壁部に対してクッションパッド４Ａの裏面方向に突出し、各流路４２ａ〜４２ｃ，４２ｅ，４２ｇの間に位置している。具体的には、第２突出部４５ｂの頂面は、クッションパッド４Ａの裏面と同程度の高さに位置している。また、第２突出部４５ｂの側面は、第２突出部４５ｂを取り囲んでいる各流路４２ａ〜４２ｃ，４２ｅ，４２ｇの側壁部によって形成されている。換言すると、第２突出部４５ｂは、各流路４２ａ〜４２ｃ，４２ｅ，４２ｇ間の隔壁を構成している。さらに、第２突出部４５ｂは、クッションパッド４Ａの裏面側から見た平面視で、車両幅方向の外側（第２流路４２ｂ側）に突出した突部を有する略Ｌ字状に形成されている。第２突出部４５ｂの突部は、第１乃至第３流路４２ａ〜４２ｃの各側壁部に接して囲まれており、その一部が車両幅方向で中央突出部４３と重なるように配置されている。 The second protruding portion 45b projects toward the back surface of the cushion pad 4A with respect to the bottom wall portion of the adjacent flow paths 42a to 42c, 42e, 42g, and is located between the respective flow paths 42a to 42c, 42e, 42g. ing. Specifically, the top surface of the second protruding portion 45b is located at the same height as the back surface of the cushion pad 4A. Further, the side surface of the second protruding portion 45b is formed by the side wall portions of the respective flow paths 42a to 42c, 42e, 42g surrounding the second protruding portion 45b. In other words, the second protruding portion 45b constitutes a partition wall between the flow paths 42a to 42c, 42e, and 42g. Further, the second protruding portion 45b is formed in a substantially L shape having a protruding portion protruding outward in the vehicle width direction (second flow path 42b side) in a plan view seen from the back surface side of the cushion pad 4A. There is. The protrusion of the second protrusion 45b is surrounded by being in contact with each side wall of the first to third flow paths 42a to 42c, and a part thereof is arranged so as to overlap the central protrusion 43 in the vehicle width direction. ing.

第８流路４２ｈは、第６流路４２ｆに対して車両幅方向の外側に位置し、第６流路４２ｆとの間に第３突出部４５ｃを挟んで車両前後方向に延びている。第８流路４２ｈの両端部は、第１流路４２ａ及び第４流路４２ｄと交差している。また、第９流路４２ｉは、第７流路４２ｇに対して車両幅方向の内側（中央側）に位置し、第７流路４２ｇとの間に第４突出部４５ｄを挟んで車両前後方向に延びている。第９流路４２ｉの両端部は、第１流路４２ａ及び第５流路４２ｅと交差している。なお、縦方向流路である第２流路４２ｂ、第６乃至第９流路４２ｆ〜４２ｉの各幅は、ほぼ同等となるように形成されている。 The eighth flow path 42h is located outside the sixth flow path 42f in the vehicle width direction, and extends in the vehicle front-rear direction with a third protrusion 45c sandwiched between the eighth flow path 42h and the sixth flow path 42f. Both ends of the eighth flow path 42h intersect with the first flow path 42a and the fourth flow path 42d. Further, the ninth flow path 42i is located inside (center side) in the vehicle width direction with respect to the seventh flow path 42g, and the fourth protrusion 45d is sandwiched between the ninth flow path 42i and the seventh flow path 42g in the vehicle front-rear direction. Extends to. Both ends of the ninth flow path 42i intersect the first flow path 42a and the fifth flow path 42e. The widths of the second flow path 42b and the sixth to ninth flow paths 42f to 42i, which are vertical flow paths, are formed to be substantially the same.

上記のような第１乃至第９流路４２ａ〜４２ｉ、並びに、中央突出部４３及び第１乃至第４突出部４５ａ〜４５ｄを有する送風部４０が形成されたクッションパッド４Ａの裏面には、例えば、フェルト材などの通気性を有する材料からなる補強面材４６が設けられている。図３〜図５に示した太線は、補強面材４６の内周縁部（切取部）に対応している。第１実施形態では、補強面材４６は、ベース部４６ａと、第１延長部４６ｂとを有している。 On the back surface of the cushion pad 4A in which the first to ninth flow paths 42a to 42i as described above, and the blower portion 40 having the central protrusion 43 and the first to fourth protrusions 45a to 45d are formed, for example. , A reinforcing surface material 46 made of a breathable material such as felt material is provided. The thick lines shown in FIGS. 3 to 5 correspond to the inner peripheral edge portion (cut portion) of the reinforcing surface material 46. In the first embodiment, the reinforcing surface material 46 has a base portion 46a and a first extension portion 46b.

補強面材４６のベース部４６ａは、クッションパッド４Ａの裏面における送風部４０の外側に位置する部分を覆っている。具体的に、ベース部４６ａ内周縁部は、送風部４０の外周縁部に配置されている第１流路４２ａ、第４流路４２ｄ、第５流路４２ｅ、第８流路４２ｈ及び第９流路４２ｉの外側を取り囲むように形成されている。ベース部４６ａの外周縁部は、クッションパッド４Ａの裏面の外縁に沿って形成されている。これにより、クッションパッド４Ａの裏面上の送風部４０を除いた部分が補強面材４６のベース部４６ａによって覆われる。 The base portion 46a of the reinforcing surface material 46 covers a portion of the back surface of the cushion pad 4A located outside the blower portion 40. Specifically, the inner peripheral edge portion of the base portion 46a is the first flow path 42a, the fourth flow path 42d, the fifth flow path 42e, the eighth flow path 42h, and the ninth flow path arranged on the outer peripheral edge portion of the blower portion 40. It is formed so as to surround the outside of the flow path 42i. The outer peripheral edge of the base portion 46a is formed along the outer edge of the back surface of the cushion pad 4A. As a result, the portion of the cushion pad 4A on the back surface excluding the blower portion 40 is covered with the base portion 46a of the reinforcing surface material 46.

補強面材４６の第１延長部４６ｂは、ベース部４６ａから第１流路４２ａに向けて延び、第１流路４２ａのベース部４６ａ側に位置する側壁部と第１流路４２ａの底壁部とを覆っている。第１流路４２ａの底壁部を覆う第１延長部４６ｂの先端部分は、第１流路４２ａの第１乃至第４突出部４５ａ〜４５ｄ側に位置する側壁部まで到達している。換言すると、第１延長部４６ｂは、ベース部４６ａの内周縁部のうちの第１流路４２ａに隣接する部分に接続し、第１流路４２ａのベース部４６ａ側の側壁部及び底壁部に亘って形成されている。したがって、補強面材４６は、ベース部４６ａ及びそれに連続する第１延長部４６ｂによって、クッションパッド４Ａの裏面と第１流路４２ａのベース部４６ａ側の側壁部及び底壁部とを覆うように構成されている。 The first extension portion 46b of the reinforcing surface member 46 extends from the base portion 46a toward the first flow path 42a, and the side wall portion located on the base portion 46a side of the first flow path 42a and the bottom wall of the first flow path 42a. It covers the part. The tip portion of the first extension portion 46b that covers the bottom wall portion of the first flow path 42a reaches the side wall portion located on the first to fourth protrusions 45a to 45d side of the first flow path 42a. In other words, the first extension portion 46b is connected to a portion of the inner peripheral edge portion of the base portion 46a adjacent to the first flow path 42a, and the side wall portion and the bottom wall portion of the first flow path 42a on the base portion 46a side. It is formed over. Therefore, the reinforcing surface material 46 covers the back surface of the cushion pad 4A and the side wall portion and the bottom wall portion of the first flow path 42a on the base portion 46a side by the base portion 46a and the first extension portion 46b continuous thereto. It is configured.

［クッションパッドの発泡成形］
次に、第１実施形態のクッションパッド４Ａの発泡成形について詳しく説明する。図６は、上記クッションパッド４Ａ及びそれを発泡成形するための金型を図３のＡ−Ａ線に沿って切断した断面図である。また、図７は、クッションパッド４Ａの発泡成形過程を模式的に示した図である。 [Cushion pad foam molding]
Next, the foam molding of the cushion pad 4A of the first embodiment will be described in detail. FIG. 6 is a cross-sectional view of the cushion pad 4A and a mold for foam molding the cushion pad 4A cut along the line AA of FIG. Further, FIG. 7 is a diagram schematically showing the foam molding process of the cushion pad 4A.

前述の図１に示したような空調シート１のクッションパッド４（４Ａ）は、車両前後方向の前端側部分が車両上下方向に厚く、後端側部分が車両上下方向に薄い形状を有している。このようなクッションパッド４Ａをウレタン材料の発泡成形により製造する場合、図６に示すように、成形用の金型１００における下型１０１によってクッションパッド４Ａの表面側が形成され、上型１０２によってクッションパッド４Ａの裏面側が形成される。また、金型１００は、クッションパッド４Ａの後端側部分が前端側部分よりも高くなるような姿勢に配置される。 The cushion pad 4 (4A) of the air conditioning sheet 1 as shown in FIG. 1 has a shape in which the front end side portion in the vehicle front-rear direction is thick in the vehicle vertical direction and the rear end side portion is thin in the vehicle vertical direction. There is. When such a cushion pad 4A is manufactured by foam molding of a urethane material, as shown in FIG. 6, the front surface side of the cushion pad 4A is formed by the lower mold 101 in the molding die 100, and the cushion pad 4A is formed by the upper mold 102. The back side of 4A is formed. Further, the mold 100 is arranged in such a posture that the rear end side portion of the cushion pad 4A is higher than the front end side portion.

一般に、ウレタン材料を用いて発泡成形を行う場合、発泡によって発生するガス等が金型の凹部の隅などに溜まり易くなる。このようなガス溜まりの発生によって、ウレタン材料が金型の隅々まで十分に行き渡らなくなり成形不良（欠肉）が生じる可能性がある。第１実施形態のクッションパッド４Ａを発泡成形するための金型１００では、各流路４２ａ〜４２ｉを区切るように形成されている各突出部４５ａ〜４５ｄに対応する部分が孤立しているため、発泡によるガスが当該部分に溜まり易くなる。具体的に、図６の断面図においては、クッションパッド４Ａの第１突出部４５ａに対応した上型１０２の凹部の隅（点線部分Ｂ）にガス溜まりが発生し易くなり、第１突出部４５ａに欠肉が生じる可能性がある。これは他の第２乃至第４突出部４５ｂ〜４５ｄについても同様である。 Generally, when foam molding is performed using a urethane material, gas or the like generated by foaming tends to accumulate in the corners of the recesses of the mold. Due to the generation of such a gas pool, the urethane material may not be sufficiently distributed to every corner of the mold, resulting in molding defects (missing meat). In the mold 100 for foam molding the cushion pad 4A of the first embodiment, the portions corresponding to the protruding portions 45a to 45d formed so as to separate the flow paths 42a to 42i are isolated. Gas due to foaming tends to accumulate in the portion. Specifically, in the cross-sectional view of FIG. 6, gas pools are likely to occur in the corners (dotted line portion B) of the recesses of the upper die 102 corresponding to the first protrusion 45a of the cushion pad 4A, and the first protrusion 45a There is a possibility of lack of meat. This also applies to the other second to fourth protrusions 45b to 45d.

第１実施形態では、上記ガス溜まりの発生を防止するために、クッションパッド４Ａの裏面に設けられる補強面材４６について、ベース部４６ａを第１流路４２ａの溝の中にまで延長した第１延長部４６ｂを形成している。この第１延長部４６ｂは、第１流路４２ａのベース部４６ａ側の側壁部及び底壁部を覆い、その先端部分が各突出部４５ａ〜４５ｄ側の側壁部まで到達しているので、各突出部４５ａ〜４５ｄに対応した上型１０２の凹部に集まってくる発泡ガス等は、補強面材４６の第１延長部４６ｂ及びベース部４６ａの中を順に通り、さらに、補強面材４６により下型１０１及び上型１０２の間に生じる隙間Ｃを通ることが可能である。これにより、上記発泡ガス等は、補強面材４６内で分散及び吸収され、且つ／又は、隙間Ｃを通過して金型１００の外部に排出されるようになる。 In the first embodiment, in order to prevent the generation of the gas pool, the base portion 46a of the reinforcing surface material 46 provided on the back surface of the cushion pad 4A is extended into the groove of the first flow path 42a. An extension portion 46b is formed. The first extension portion 46b covers the side wall portion and the bottom wall portion of the first flow path 42a on the base portion 46a side, and the tip portions thereof reach the side wall portions on the protruding portions 45a to 45d side. The foaming gas or the like that collects in the recesses of the upper die 102 corresponding to the protrusions 45a to 45d passes through the first extension portion 46b and the base portion 46a of the reinforcing surface material 46 in order, and is further lowered by the reinforcing surface material 46. It is possible to pass through the gap C formed between the mold 101 and the upper mold 102. As a result, the foamed gas and the like are dispersed and absorbed in the reinforcing surface material 46 and / or are discharged to the outside of the mold 100 through the gap C.

具体的に、図７を参照しながらクッションパッド４Ａの発泡成形過程を簡単に説明すると、ベース部４６ａ及び第１延長部４６ｂの形状に合わせてフェルト材などをカットして補強面材４６を事前に用意しておく。そして、図７の上段に示すように、用意しておいた補強面材４６を金型１００の上型１０２の所定位置にセットすると共に、ウレタン材料Ｍを下型１０１におけるクッションパッド４Ａの座面部の前端側と中央部に対応する部分（低位側部分と中位側部分）に投入して型締めする。 Specifically, the foam molding process of the cushion pad 4A will be briefly described with reference to FIG. 7. The felt material or the like is cut according to the shapes of the base portion 46a and the first extension portion 46b to prepare the reinforcing surface material 46 in advance. Prepare it in. Then, as shown in the upper part of FIG. 7, the prepared reinforcing surface material 46 is set at a predetermined position of the upper mold 102 of the mold 100, and the urethane material M is set on the seat surface portion of the cushion pad 4A in the lower mold 101. Put it in the parts corresponding to the front end side and the center part (low side part and middle side part) and fasten the mold.

型締めが完了すると、図７の中段に示すように、ウレタン材料Ｍを発泡させる工程に移る。図中の矢印線は、発泡によって下型１０１及び上型１０２の間の空間に充填されるウレタン材料Ｍの流れを示している。ウレタン材料Ｍは、クッションパッド４Ａの裏面側及び後端側に向かって充填されていく。このウレタン材料Ｍの充填方向に関して、補強面材４６の第１延長部４６ｂは、下流側に位置するベース部４６ａの内周縁部から、上流側に位置する第１流路４２ａに向けて延びていることになる。 When the mold clamping is completed, as shown in the middle part of FIG. 7, the process proceeds to the step of foaming the urethane material M. The arrow line in the figure shows the flow of the urethane material M that fills the space between the lower mold 101 and the upper mold 102 by foaming. The urethane material M is filled toward the back surface side and the rear end side of the cushion pad 4A. Regarding the filling direction of the urethane material M, the first extension portion 46b of the reinforcing surface material 46 extends from the inner peripheral edge portion of the base portion 46a located on the downstream side toward the first flow path 42a located on the upstream side. Will be there.

このような発泡工程で発生するガス等は、前述したようにクッションパッド４Ａの各突出部４５ａ〜４５ｄに対応した上型１０２の凹部に集まってくる。この上型１０２の凹部に集まってきた発泡ガス等は、補強面材４６の第１延長部４６ｂが第１流路４２ａの突出部側（上流側）の側壁部まで到達するように延長されていることによって、図７の下段に示すように、補強面材４６の第１延長部４６ｂ及びベース部４６ａの中を通って補強面材４６内で分散及び吸収され、且つ／又は、隙間Ｃを通過して金型１００の外部に排出されるようになる。図中の矢印線は、金型１００内における発泡ガス等の流れを示している。このように第１実施形態のクッションパッド４Ａにおいては、補強面材４６のベース部４６ａ及び第１延長部４６ｂによって、発泡ガス等の排出経路を途切れることなく設置することができる。なお、クッションパッド４Ａの裏面側の前端部にも発泡ガス等が集まってくるが、この発泡ガス等についても補強面材４６のベース部４６ａの中を通って補強面材４６内で分散及び吸収され、且つ／又は、隙間Ｃを通過して金型１００の外部に排出される。 As described above, the gas or the like generated in such a foaming step collects in the recesses of the upper die 102 corresponding to the protruding portions 45a to 45d of the cushion pad 4A. The foaming gas or the like collected in the recess of the upper die 102 is extended so that the first extension portion 46b of the reinforcing surface material 46 reaches the side wall portion on the protruding portion side (upstream side) of the first flow path 42a. As a result, as shown in the lower part of FIG. 7, the reinforcing surface material 46 is dispersed and absorbed in the reinforcing surface material 46 through the first extension portion 46b and the base portion 46a, and / or the gap C is formed. It passes through and is discharged to the outside of the mold 100. The arrow line in the figure shows the flow of foaming gas or the like in the mold 100. As described above, in the cushion pad 4A of the first embodiment, the base portion 46a and the first extension portion 46b of the reinforcing surface material 46 can be installed without interrupting the discharge path of the foamed gas or the like. Foaming gas or the like also collects at the front end portion on the back surface side of the cushion pad 4A, and this foaming gas or the like is also dispersed and absorbed in the reinforcing surface material 46 through the base portion 46a of the reinforcing surface material 46. And / or passes through the gap C and is discharged to the outside of the mold 100.

上記のように第１実施形態のクッションパッド４Ａによれば、クッションパッド４Ａの裏面に第１乃至第９流路４２ａ〜４２ｉを有する送風部４０が形成されているので、従来の構造のようにパッド本体と装填体とを個別に成形する必要がなく、クッションパッド４Ａと送風用の各流路４２ａ〜４２ｉとを一体に成形することが可能であり、製造工数及びコストの増加を抑制することができる。また、補強面材４６が、ベース部４６ａ及びベース部４６ａから第１流路４２ａに向けて延びる第１延長部４６ｂを有し、第１延長部４６ｂにより第１流路４２ａのベース部４６ａ側の側壁部及び底壁部が覆われているので、クッションパッド４Ａの発泡成形時に金型１００のキャビティ内で各突出部４５ａ〜４５ｄの対応部分に集まってくる発泡ガス等が、補強面材４６の第１延長部４６ｂ及びベース部４６ａの中を通って補強面材４６内で分散及び吸収され、且つ／又は、隙間Ｃを通過して金型１００の外部に排出されるようになる。これにより、発泡成形時のガス溜まりによる成形不良の発生を低減することが可能になる。 As described above, according to the cushion pad 4A of the first embodiment, since the blower portion 40 having the first to ninth flow paths 42a to 42i is formed on the back surface of the cushion pad 4A, it is similar to the conventional structure. It is not necessary to separately mold the pad body and the loading body, and the cushion pad 4A and the air flow paths 42a to 42i can be integrally molded, thereby suppressing an increase in manufacturing man-hours and costs. Can be done. Further, the reinforcing surface material 46 has a base portion 46a and a first extension portion 46b extending from the base portion 46a toward the first flow path 42a, and the first extension portion 46b allows the base portion 46a side of the first flow path 42a. Since the side wall portion and the bottom wall portion of the cushion pad 4A are covered, the foaming gas and the like collected in the corresponding portions of the protruding portions 45a to 45d in the cavity of the mold 100 during the foam molding of the cushion pad 4A are collected in the reinforcing surface material 46. It is dispersed and absorbed in the reinforcing surface material 46 through the first extension portion 46b and the base portion 46a, and / or is discharged to the outside of the mold 100 through the gap C. This makes it possible to reduce the occurrence of molding defects due to gas accumulation during foam molding.

［第２実施形態］
次に、本発明の第２実施形態によるパッド構造を適用したクッションパッドについて説明する。図８は、第２実施形態のクッションパッドにおける送風部の周辺を裏面側から見た斜視図である。なお、前述の図２〜図７に示した第１実施形態の構成と同一若しくは対応する部分には同じ符号を付して説明を省略するものとし、以降の他の実施形態についても同様とする。 [Second Embodiment]
Next, a cushion pad to which the pad structure according to the second embodiment of the present invention is applied will be described. FIG. 8 is a perspective view of the periphery of the blower portion of the cushion pad of the second embodiment as viewed from the back surface side. The same or corresponding parts as those of the first embodiment shown in FIGS. 2 to 7 described above are designated by the same reference numerals and the description thereof will be omitted, and the same applies to the other embodiments thereafter. ..

図８において、第２実施形態のクッションパッド４Ｂの構成が上述した第１実施形態のクッションパッド４Ａの構成と異なる点は、補強面材４６について、ベース部４６ａ及び第１延長部４６ｂに加えて第２延長部４６ｃが形成されている点である。なお、補強面材４６の第２延長部４６ｃ以外の構成は、第１実施形態の場合と同様である。 In FIG. 8, the configuration of the cushion pad 4B of the second embodiment is different from the configuration of the cushion pad 4A of the first embodiment described above in addition to the base portion 46a and the first extension portion 46b of the reinforcing surface material 46. This is the point where the second extension portion 46c is formed. The configuration of the reinforcing surface member 46 other than the second extension portion 46c is the same as that of the first embodiment.

補強面材４６の第２延長部４６ｃは、第１延長部４６ｂから第１突出部４５ａ及び第２突出部４５ｂの各頂面に向けて延びている。第２延長部４６ｃは、第１流路４２ａの各突出部４５ａ，４５ｂ側に位置する側壁部と各突出部４５ａ，４５ｂの頂面とを覆っている。換言すると、第２延長部４６ｃは、第１流路４２ａの底壁部を覆っている第１延長部４６ｂの先端部分に接続し、第１突出部４５ａ及び第２突出部４５ｂの第１流路４２ａに隣接する各側面及び各頂面に亘って形成されている。したがって、第２実施形態における補強面材４６は、ベース部４６ａ、第１延長部４６ｂ及び第２延長部４６ｃによって、クッションパッド４Ｂの裏面と、第１流路４２ａの溝の中（ベース部４６ｂ側の側壁部、底壁部及び各突出部４５ａ，４５ｂ側の側壁部）と、各突出部４５ａ，４５ｂの頂面とを覆うように構成されている。 The second extension portion 46c of the reinforcing surface member 46 extends from the first extension portion 46b toward the top surfaces of the first protrusion 45a and the second protrusion 45b. The second extension portion 46c covers the side wall portions located on the protruding portions 45a and 45b side of the first flow path 42a and the top surfaces of the protruding portions 45a and 45b. In other words, the second extension portion 46c is connected to the tip end portion of the first extension portion 46b that covers the bottom wall portion of the first flow path 42a, and the first flow of the first protrusion 45a and the second protrusion 45b. It is formed over each side surface and each top surface adjacent to the road 42a. Therefore, the reinforcing surface material 46 in the second embodiment is formed by the base portion 46a, the first extension portion 46b, and the second extension portion 46c in the back surface of the cushion pad 4B and in the groove of the first flow path 42a (base portion 46b). It is configured to cover the side wall portion, the bottom wall portion, and the side wall portion on each protrusion 45a, 45b side) and the top surface of each protrusion 45a, 45b.

図９は、第２実施形態のクッションパッド４Ｂ及びそれを発泡成形するための金型をＡ−Ａ線（図３参照）に沿って切断した断面図である。図９に示すように、クッションパッド４Ｂにおける補強面材４６の第２延長部４６ｃは、第１流路４２ａの第１突出部４５ａ側の側壁部（及び第２突出部４５ｂ側の側壁部）と、第１突出部４５ａの頂面（及び第２突出部４５ｂの頂面）とを覆っている。このため、各突出部４５ａ，４５ｂに対応した上型１０２の凹部に集まってくる発泡ガス等は、補強面材４６の第２延長部４６ｃ、第１延長部４６ｂ及びベース部４６ａの中を順に通り、さらに、補強面材４６により下型１０１及び上型１０２の間に生じる隙間Ｃを通ることが可能である。これにより、上記発泡ガス等は、補強面材４６内で分散及び吸収され、且つ／又は、隙間Ｃを通過して金型１００の外部に排出されるようになる。 FIG. 9 is a cross-sectional view of the cushion pad 4B of the second embodiment and a mold for foam molding the cushion pad 4B, which is cut along the line AA (see FIG. 3). As shown in FIG. 9, the second extension portion 46c of the reinforcing surface member 46 in the cushion pad 4B is a side wall portion (and a side wall portion on the second protrusion 45b side) of the first flow path 42a on the first protrusion 45a side. And the top surface of the first protrusion 45a (and the top surface of the second protrusion 45b). Therefore, the foaming gas and the like that collect in the recesses of the upper die 102 corresponding to the protruding portions 45a and 45b sequentially move through the second extension portion 46c, the first extension portion 46b, and the base portion 46a of the reinforcing surface material 46. Further, the reinforcing surface material 46 allows the reinforcing surface member 46 to pass through the gap C formed between the lower mold 101 and the upper mold 102. As a result, the foamed gas and the like are dispersed and absorbed in the reinforcing surface material 46 and / or are discharged to the outside of the mold 100 through the gap C.

したがって、第２実施形態のクッションパッド４Ｂによれば、発泡ガス等の排出経路となる補強面材４６について、各突出部４５ａ，４５ｂの頂面を覆う第２延長部４６ｃをベース部４６ａ及び第１延長部４６ｂから連続して配置したことで、ガス溜まりが発生し易い形状を有する突出部４５ａ，４５ｂの各頂面からのガス排出経路が補強面材４６によって確立されるため、発泡ガス等を金型１００の外部に確実に排出することができる。これにより、発泡成形時のガス溜まりによる成形不良の発生を更に低減することが可能になる。 Therefore, according to the cushion pad 4B of the second embodiment, with respect to the reinforcing surface material 46 serving as a discharge path for foamed gas or the like, the base portion 46a and the second extension portion 46c covering the top surfaces of the protruding portions 45a and 45b are the base portions 46a and the second. 1 Since the gas discharge path from each top surface of the protruding portions 45a and 45b having a shape in which gas accumulation is likely to occur is established by the reinforcing surface material 46 by continuously arranging from the extension portion 46b, foaming gas or the like. Can be reliably discharged to the outside of the mold 100. This makes it possible to further reduce the occurrence of molding defects due to gas accumulation during foam molding.

なお、上述した第２実施形態では、補強面材４６の第２延長部４６ｃが第１流路４２ａに隣接する第１突出部４５ａ及び第２突出部４５ｂの各頂面を覆う一例を説明したが、第１流路４２ａに隣接する他の突出部（第３突出部４５ｃ、第４突出部４５ｄ）の頂面についても補強面材４６の第２延長部４６ｃによって覆われるようにしてもよい。 In the second embodiment described above, an example has been described in which the second extension portion 46c of the reinforcing surface member 46 covers the top surfaces of the first protrusion 45a and the second protrusion 45b adjacent to the first flow path 42a. However, the top surface of other protrusions (third protrusion 45c, fourth protrusion 45d) adjacent to the first flow path 42a may also be covered by the second extension portion 46c of the reinforcing surface material 46. ..

［第３実施形態］
次に、本発明の第３実施形態によるパッド構造を適用したクッションパッドについて説明する。図１０は、第３実施形態のクッションパッド及びそれを支えるクッションフレームをＡ−Ａ線（図３参照）に沿って切断した断面図である。また、図１１は、第３実施形態のクッションパッド及びクッションフレームを車両下方から見た平面図である。 [Third Embodiment]
Next, a cushion pad to which the pad structure according to the third embodiment of the present invention is applied will be described. FIG. 10 is a cross-sectional view of the cushion pad of the third embodiment and the cushion frame supporting the cushion pad of the third embodiment cut along the line AA (see FIG. 3). Further, FIG. 11 is a plan view of the cushion pad and the cushion frame of the third embodiment as viewed from below the vehicle.

図１０及び図１１に示すように、第３実施形態のクッションパッド４Ｃでは、第１乃至第４突出部４５ａ〜４５ｄが、クッションフレーム５の車両幅方向に延びるクロスメンバ５１の上方に位置し、クッションフレーム５を車両下方から見た平面視（図１１）で、クッションパッド４Ｃの裏面におけるクロスメンバ５１と重なる位置に形成されている。また、クッションパッド４Ｃの補強面材４６には、ベース部４６ａ及び第１延長部４６ｂに加えて第３延長部４６ｄが形成されている。さらに、クッションパッド４Ｃには、クッションパッド４Ｃの送風部４０に蓋をする遮蔽部材４７（例えば、ＰＥコーティングカーペット材など）が設置されている。なお、上記各突出部４５ａ〜４５ｄとクロスメンバ５１との位置関係、補強面材４６の第３延長部４６ｄ、及び遮蔽部材４７以外の構成は、上述した第１実施形態の場合と同様である。 As shown in FIGS. 10 and 11, in the cushion pad 4C of the third embodiment, the first to fourth protrusions 45a to 45d are located above the cross member 51 extending in the vehicle width direction of the cushion frame 5. The cushion frame 5 is formed at a position overlapping the cross member 51 on the back surface of the cushion pad 4C in a plan view (FIG. 11) when the cushion frame 5 is viewed from below the vehicle. Further, the reinforcing surface material 46 of the cushion pad 4C is formed with a third extension portion 46d in addition to the base portion 46a and the first extension portion 46b. Further, the cushion pad 4C is provided with a shielding member 47 (for example, a PE-coated carpet material) that covers the air blowing portion 40 of the cushion pad 4C. The positional relationship between the protruding portions 45a to 45d and the cross member 51, the configuration other than the third extension portion 46d of the reinforcing surface member 46, and the shielding member 47 are the same as in the case of the first embodiment described above. ..

具体的に、クッションパッド４Ｃの裏面はクッションフレーム５に固定されている。クッションフレーム５は、車両幅方向に延びる複数のクロスメンバ５１と、車両前後方向に延びる一対のサイドメンバ５２とを有している。各クロスメンバ５１は一対のサイドメンバ５２の間に架け渡して配置されている。ここでは、複数のクロスメンバ５１のうちの車両前方側から２番目に配置されているクロスメンバ５１（図１１参照）の上方に、クッションパッド４Ｃの第１乃至第４突出部４５ａ〜４５ｄが位置している。 Specifically, the back surface of the cushion pad 4C is fixed to the cushion frame 5. The cushion frame 5 has a plurality of cross members 51 extending in the vehicle width direction and a pair of side members 52 extending in the vehicle front-rear direction. Each cross member 51 is arranged so as to bridge between a pair of side members 52. Here, the first to fourth protruding portions 45a to 45d of the cushion pad 4C are located above the cross member 51 (see FIG. 11) which is arranged second from the vehicle front side among the plurality of cross members 51. doing.

補強面材４６の第３延長部４６ｄは、第１延長部４６ｂから各突出部４５ａ〜４５ｄの頂面に向けて延び、第１流路４２ａの各突出部４５ａ〜４５ｄ側に位置する側壁部と各突出部４５ａ〜４５ｄの頂面の一部とを覆っている。第３実施形態では、第３延長部４６ｄの先端部分は、クッションフレーム５を車両下方から見た平面視で、クロスメンバ５１と重なる位置まで延長されている。 The third extension portion 46d of the reinforcing surface member 46 extends from the first extension portion 46b toward the top surface of each protrusion 45a to 45d, and is a side wall portion located on the side of each protrusion 45a to 45d of the first flow path 42a. And a part of the top surface of each of the protrusions 45a to 45d. In the third embodiment, the tip portion of the third extension portion 46d is extended to a position where it overlaps with the cross member 51 in a plan view of the cushion frame 5 viewed from below the vehicle.

上記のような構成のクッションパッド４Ｃ及びクッションフレーム５が適用された空調シート１のシートクッション部２では、車両上方からの荷重がクッションパッド４Ｃに作用していないとき、各突出部４５ａ〜４５ｄはクロスメンバ５１から上方に離れた状態にある。一方、乗員が着席するなどして車両上方からの荷重がクッションパッド４Ｃに作用し、該荷重によりクッションパッド４Ｃが車両下方に撓むと、各突出部４５ａ〜４５ｄの頂面が補強面材４６の第３延長部４６ｄ及び遮蔽部材４７を介してクロスメンバ５１に当接するようになる。各突出部４５ａ〜４５ｄがクロスメンバ５１によって支えられることで、クッションパッド４Ｃの変形を抑えることができるため、乗員が十分な剛性感を得ることができると共に、クッションパッド４Ｃの沈み過ぎを防止することが可能になる。また、クッションパッド４Ｃの変形が抑えられることにより、送風部４０内の形成されている各流路４２ａ〜４２ｉの断面積を確保できるため、空調シート１の空調性能の低下を防止することも可能になる。 In the seat cushion portion 2 of the air-conditioning seat 1 to which the cushion pad 4C and the cushion frame 5 having the above configuration are applied, when the load from above the vehicle does not act on the cushion pad 4C, the protruding portions 45a to 45d are It is in a state of being separated upward from the cross member 51. On the other hand, when a load from above the vehicle acts on the cushion pad 4C, such as when an occupant sits down, and the cushion pad 4C bends downward due to the load, the top surfaces of the protruding portions 45a to 45d become the reinforcing surface material 46. It comes into contact with the cross member 51 via the third extension portion 46d and the shielding member 47. Since each of the protruding portions 45a to 45d is supported by the cross member 51, deformation of the cushion pad 4C can be suppressed, so that the occupant can obtain a sufficient sense of rigidity and prevent the cushion pad 4C from sinking too much. Will be possible. Further, by suppressing the deformation of the cushion pad 4C, it is possible to secure the cross-sectional area of each of the flow paths 42a to 42i formed in the blower portion 40, so that it is possible to prevent the air conditioning performance of the air conditioning sheet 1 from deteriorating. become.

さらに、補強面材４６の第３延長部４６ｄによって、第１流路４２ａの各突出部４５ａ〜４５ｄ側に位置する側壁部、すなわち、各突出部４５ａ〜４５ｄの第１流路４２ａに隣接する側面と、各突出部４５ａ〜４５ｄの頂面とが連続して覆われていることで、各突出部４５ａ〜４５ｄの強度が高められるため、クロスメンバ５１からの荷重による各突出部４５ａ〜４５ｄの圧縮を低減することができる。これにより、クッションパッド４Ｃの変形を効果的に抑えることが可能である。 Further, the third extension portion 46d of the reinforcing surface member 46 is adjacent to the side wall portion located on each protrusion 45a to 45d side of the first flow path 42a, that is, the first flow path 42a of each protrusion 45a to 45d. Since the side surface and the top surface of each of the protrusions 45a to 45d are continuously covered, the strength of each of the protrusions 45a to 45d is increased, so that the protrusions 45a to 45d due to the load from the cross member 51 Compression can be reduced. Thereby, the deformation of the cushion pad 4C can be effectively suppressed.

［第４実施形態］
次に、本発明の第４実施形態によるパッド構造を適用したクッションパッドについて説明する。図１２は、第４実施形態のクッションパッドにおける送風部の周辺を裏面側から見た斜視図である。図１２において、第４実施形態のクッションパッド４Ｄの構成が上述した第１実施形態のクッションパッド４Ａの構成と異なる点は、補強面材４６について、ベース部４６ａ及び第１延長部４６ｂに加えて第４延長部４６ｅが形成されている点である。なお、補強面材４６の第４延長部４６ｅ以外の構成は、第１実施形態の場合と同様である。 [Fourth Embodiment]
Next, a cushion pad to which the pad structure according to the fourth embodiment of the present invention is applied will be described. FIG. 12 is a perspective view of the periphery of the blower portion in the cushion pad of the fourth embodiment as viewed from the back surface side. In FIG. 12, the configuration of the cushion pad 4D of the fourth embodiment is different from the configuration of the cushion pad 4A of the first embodiment described above in addition to the base portion 46a and the first extension portion 46b of the reinforcing surface material 46. This is the point where the fourth extension portion 46e is formed. The configuration of the reinforcing surface material 46 other than the fourth extension portion 46e is the same as that of the first embodiment.

補強面材４６の第４延長部４６ｅは、第１延長部４６ｂから第１突出部４５ａ及び第２突出部４５ｂの各頂面に向けて延びている。第４延長部４６ｅは、第１流路４２ａの各突出部４５ａ，４５ｂ側に位置する側壁部と、各突出部４５ａ，４５ｂにおける第２流路４２ｂ側に突出した突部の頂面とを覆っている。各突出部４５ａ，４５ｂの突部は、第１乃至第３流路４２ａ〜４２ｃの各側壁部に接して囲まれている包囲部分である。換言すると、第４延長部４６ｅは、第１流路４２ａの底壁部を覆っている第１延長部４６ｂの先端部分に接続し、各突出部４５ａ，４５ｂの第１流路４２ａに隣接する側面と突部（包囲部分）の頂面とに亘って形成されている。したがって、第４実施形態における補強面材４６は、ベース部４６ａ、第１延長部４６ｂ及び第４延長部４６ｅによって、クッションパッド４Ｄの裏面と、第１流路４２ａのベース部４６ａ側の側壁部、底壁部及び各突出部４５ａ，４５ｂ側の側壁部と、各突出部４５ａ，４５ｂの包囲部分の頂面とを覆うように構成されている。 The fourth extension portion 46e of the reinforcing surface member 46 extends from the first extension portion 46b toward the top surfaces of the first protrusion 45a and the second protrusion 45b. The fourth extension portion 46e has a side wall portion located on each of the protrusions 45a and 45b of the first flow path 42a and a top surface of a protrusion of each of the protrusions 45a and 45b that protrudes toward the second flow path 42b. Covering. The protrusions of the protrusions 45a and 45b are surrounding portions that are in contact with and surrounded by the side walls of the first to third flow paths 42a to 42c. In other words, the fourth extension portion 46e is connected to the tip end portion of the first extension portion 46b that covers the bottom wall portion of the first flow path 42a, and is adjacent to the first flow path 42a of each of the protrusions 45a and 45b. It is formed over the side surface and the top surface of the protrusion (surrounding portion). Therefore, the reinforcing surface material 46 in the fourth embodiment has the back surface of the cushion pad 4D and the side wall portion of the first flow path 42a on the base portion 46a side by the base portion 46a, the first extension portion 46b, and the fourth extension portion 46e. It is configured to cover the bottom wall portion, the side wall portion on each of the protruding portions 45a and 45b, and the top surface of the surrounding portion of each of the protruding portions 45a and 45b.

上記のような第４実施形態のクッションパッド４Ｄにおいて、各突出部４５ａ，４５ｂの包囲部分に対応した上型１０２の凹部には、発泡成形時に発生するガス等の逃げ道が少ないため、ガス溜まりが最も発生し易い。このような各突出部４５ａ，４５ｂの包囲部分の頂面が補強面材４６によって覆われるように第４延長部４６ｅを設けたことで、発泡ガス等は、補強面材４６内で効率的に分散及び吸収され、且つ／又は、金型１００の外部に効率的に排出されるようになる。これにより、発泡成形時のガス溜まりによる成形不良の発生を的確に低減することが可能になる。 In the cushion pad 4D of the fourth embodiment as described above, since there are few escape paths for gas and the like generated during foam molding in the recesses of the upper mold 102 corresponding to the surrounding portions of the protruding portions 45a and 45b, gas pools are formed. Most likely to occur. By providing the fourth extension portion 46e so that the top surface of the surrounding portion of each of the protruding portions 45a and 45b is covered with the reinforcing surface material 46, the foamed gas or the like can be efficiently supplied in the reinforcing surface material 46. It will be dispersed and absorbed and / or will be efficiently discharged to the outside of the mold 100. This makes it possible to accurately reduce the occurrence of molding defects due to gas accumulation during foam molding.

［応用例］
以上、本発明の実施の形態について述べたが、本発明は既述の実施の形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形及び変更が可能である。例えば、既述の実施の形態では、空調シート１におけるシートクッション部２のクッションパッド４（４Ａ〜４Ｄ）について本発明に係るパッド構造が適用される場合を説明したが、シートバック部３のバックパッド６（図１）についても既述の実施の形態と同様なパッド構造を応用することが可能である。 [Application example]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and modifications can be made based on the technical idea of the present invention. For example, in the above-described embodiment, the case where the pad structure according to the present invention is applied to the cushion pads 4 (4A to 4D) of the seat cushion portion 2 in the air-conditioning seat 1 has been described, but the back of the seat back portion 3 has been described. The same pad structure as that of the above-described embodiment can be applied to the pad 6 (FIG. 1).

以下では、バックパッド６への応用例について図１３を参照しながら簡単に説明する。図１３は、上記応用例によるバックパッド６を裏面側から見た斜視図である。図１３において、バックパッド６の裏面には、車両上下方向の中央部分に送風部６０が設けられている。この送風部６０内には、バックパッド６の表面側に凹んだ溝状の複数の流路６２ａ〜６２ｅが形成されている。ここでは、車両幅方向の中央部で車両上下方向に延びる第２流路６２ｂが形成されており、第２流路６２ｂの両側部から車両幅方向に延びる第１流路６２ａ、第３流路６２ｃ、第４流路６２ｄ及び第５流路６２ｅが形成されている。幅方向の各流路６２ａ，６２ｃ〜６２ｅの底壁部には、バックパッド６の表面に貫通する複数の開口部６１が形成されている。各流路６２ａ〜６２ｅの間には、バックパッド６の裏面方向に突出する複数の突出部６５が位置している。 Hereinafter, an application example to the back pad 6 will be briefly described with reference to FIG. FIG. 13 is a perspective view of the back pad 6 according to the above application example as viewed from the back surface side. In FIG. 13, on the back surface of the back pad 6, a blower portion 60 is provided at a central portion in the vertical direction of the vehicle. A plurality of groove-shaped flow paths 62a to 62e recessed on the surface side of the back pad 6 are formed in the blower portion 60. Here, a second flow path 62b extending in the vehicle vertical direction is formed at the central portion in the vehicle width direction, and the first flow path 62a and the third flow path extending in the vehicle width direction from both sides of the second flow path 62b. 62c, a fourth flow path 62d and a fifth flow path 62e are formed. A plurality of openings 61 penetrating the surface of the back pad 6 are formed in the bottom wall portions of the flow paths 62a, 62c to 62e in the width direction. A plurality of projecting portions 65 projecting toward the back surface of the back pad 6 are located between the flow paths 62a to 62e.

上記のような各流路６２ａ〜６２ｉ及び複数の突出部６５を有する送風部６０が形成されたバックパッド６には、例えば、バックパッド６の裏面における送風部６０の外側に位置する部分と各突出部６５の頂面とを覆うような補強面材６６を設けるようにしてもよい。これにより、発泡成形時、各突出部６５に対応した上型の凹部に集まってくる発泡ガス等を補強面材６６の中を通して金型の外部に排出できるようになり、既述の実施の形態の場合と同様な効果を得ることが可能である。 The back pad 6 on which the blower portions 60 having the respective flow paths 62a to 62i and the plurality of protrusions 65 as described above are formed includes, for example, a portion located outside the blower portion 60 on the back surface of the back pad 6. A reinforcing surface material 66 may be provided so as to cover the top surface of the protrusion 65. As a result, during foam molding, the foam gas or the like that collects in the recesses of the upper mold corresponding to each protrusion 65 can be discharged to the outside of the mold through the reinforcing surface material 66, and the above-described embodiment can be performed. It is possible to obtain the same effect as in the case of.

１…空調シート
２…シートクッション部
３…シートバック部
４，４Ａ〜４Ｄ…クッションパッド
５…クッションフレーム
６…バックパッド
７…バックフレーム
４０…送風部
４１，６１…開口部
４２ａ〜４２ｉ，６２ａ〜６２ｅ…流路
４５ａ〜４５ｄ，６５…突出部
４６，６６…補強面材
４６ａ…ベース部
４６ｂ…第１延長部
４６ｃ〜４６ｅ…第２〜第４延長部
４７…遮蔽部材
１００…金型
１０１…下型
１０２…上型 1 ... Air conditioning seat 2 ... Seat cushion part 3 ... Seat back part 4, 4A to 4D ... Cushion pad 5 ... Cushion frame 6 ... Back pad 7 ... Back frame 40 ... Blower part 41, 61 ... Opening 42a to 42i, 62a ~ 62e ... Flow paths 45a to 45d, 65 ... Protruding parts 46, 66 ... Reinforcing surface material 46a ... Base part 46b ... First extension part 46c to 46e ... Second to fourth extension parts 47 ... Shielding member 100 ... Mold 101 ... Lower mold 102 ... Upper mold

Claims (5)

車両用の空調シートにおけるパッドの裏面に表面側に凹んだ溝状の複数の流路が形成されている送風部と、前記複数の流路の底壁部から前記パッドの表面に貫通する開口部と、前記パッドの裏面に設けられている補強面材と、を備えた空調シートのパッド構造において、
前記パッドの前記送風部内に形成され、前記複数の流路の底壁部に対して前記パッドの裏面方向に突出し、各流路の間に位置している突出部を備え、
前記補強面材は、
前記パッドの裏面における前記送風部の外側に位置する部分を覆うベース部と、
該ベース部から前記送風部の前記複数の流路のうちの前記突出部及び前記ベース部の間に位置する第１流路に向けて延び、該第１流路の前記ベース部側に位置する側壁部と前記第１流路の底壁部とを覆い、先端部分が前記第１流路の前記突出部側に位置する側壁部まで到達している第１延長部と、
を有することを特徴とする空調シートのパッド構造。 A blower portion in which a plurality of groove-shaped flow paths recessed on the front surface side are formed on the back surface of a pad in an air conditioning sheet for a vehicle, and an opening penetrating from the bottom wall portion of the plurality of flow paths to the surface of the pad. In the pad structure of the air-conditioning sheet provided with the reinforcing surface material provided on the back surface of the pad.
It is provided with a protrusion formed in the blower portion of the pad, projecting toward the back surface of the pad with respect to the bottom wall portions of the plurality of flow paths, and located between the respective flow paths.
The reinforcing surface material is
A base portion that covers a portion of the back surface of the pad that is located outside the blower portion,
It extends from the base portion toward the first flow path located between the protruding portion and the base portion of the plurality of flow paths of the blower portion, and is located on the base portion side of the first flow path. A first extension portion that covers the side wall portion and the bottom wall portion of the first flow path, and the tip portion reaches the side wall portion located on the protruding portion side of the first flow path.
The pad structure of the air conditioning sheet, which is characterized by having. 前記補強面材は、前記第１延長部から前記突出部の頂面に向けて延び、前記第１流路の前記突出部側に位置する側壁部と前記突出部の頂面とを覆う第２延長部を有することを特徴とする請求項１に記載の空調シートのパッド構造。 The reinforcing surface material extends from the first extension portion toward the top surface of the protrusion portion, and covers the side wall portion located on the protrusion portion side of the first flow path and the top surface of the protrusion portion. The pad structure of the air conditioning sheet according to claim 1, further comprising an extension portion. 前記パッドは、前記空調シートの座部を構成するクッションパッドであり、該クッションパッドを支えるクッションフレームに前記クッションパッドの裏面が固定されており、
前記突出部は、前記クッションフレームの幅方向に延びるクロスメンバの上方に位置し、前記クッションフレームを下方から見た平面視で、前記クッションパッドの裏面における前記クロスメンバと重なる位置に設けられていることを特徴とする請求項１に記載の空調シートのパッド構造。 The pad is a cushion pad that constitutes a seat portion of the air conditioning seat, and the back surface of the cushion pad is fixed to a cushion frame that supports the cushion pad.
The protruding portion is located above the cross member extending in the width direction of the cushion frame, and is provided at a position overlapping the cross member on the back surface of the cushion pad in a plan view of the cushion frame from below. The pad structure of the air conditioning sheet according to claim 1. 前記補強面材は、前記第１延長部から前記突出部の頂面に向けて延び、前記第１流路の前記突出部側に位置する側壁部と前記突出部の頂面の一部とを覆い、前記平面視で、先端部分が前記クロスメンバと重なる位置まで延長されている第３延長部を有することを特徴とする請求項３に記載の空調シートのパッド構造。 The reinforcing surface material extends from the first extension portion toward the top surface of the protrusion portion, and a side wall portion located on the protrusion portion side of the first flow path and a part of the top surface of the protrusion portion are formed. The pad structure for an air conditioning sheet according to claim 3, further comprising a third extension portion that covers and extends to a position where the tip portion overlaps with the cross member in the plan view. 前記複数の流路は、前記第１流路と交差する方向に延びる第２流路と、前記第１流路との間に前記突出部を挟んだ位置で前記第２流路と交差する方向に延びる第３流路と、を有し、
前記突出部は、前記第１流路、前記第２流路、及び前記第３流路の各側壁部に接して囲まれている包囲部分を有し、
前記補強面材は、前記第１延長部から前記包囲部分の頂面に向けて延び、前記第１流路の前記突出部側に位置する側壁部と前記包囲部分の頂面とを覆う第４延長部を有することを特徴とする請求項１に記載の空調シートのパッド構造。 The plurality of flow paths intersect the second flow path at a position where the protrusion is sandwiched between the second flow path extending in the direction intersecting the first flow path and the first flow path. Has a third flow path extending to
The protruding portion has a surrounding portion that is in contact with and surrounded by each side wall portion of the first flow path, the second flow path, and the third flow path.
The reinforcing surface material extends from the first extension portion toward the top surface of the surrounding portion, and covers the side wall portion located on the protruding portion side of the first flow path and the top surface of the surrounding portion. The pad structure of the air conditioning sheet according to claim 1, further comprising an extension portion.
JP2020046513A 2020-03-17 2020-03-17 Pad structure air-conditioning seat Pending JP2021146805A (en)

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EP1714584A1 (en) * 2005-04-20 2006-10-25 Proseat Method for manufacturing a foam cushion for a ventilated seat and a foam cushion produced by such a method
JP2010104485A (en) * 2008-10-29 2010-05-13 Toyota Boshoku Corp Cushion structure of vehicle seat and method of manufacturing the same
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JP2018076044A (en) * 2016-11-11 2018-05-17 株式会社イノアックコーポレーション Seat pad for vehicle and manufacturing method thereof
JP2019024937A (en) * 2017-07-28 2019-02-21 株式会社ブリヂストン Seat pad and chair seat

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EP1714584A1 (en) * 2005-04-20 2006-10-25 Proseat Method for manufacturing a foam cushion for a ventilated seat and a foam cushion produced by such a method
JP2010104485A (en) * 2008-10-29 2010-05-13 Toyota Boshoku Corp Cushion structure of vehicle seat and method of manufacturing the same
JP2016088243A (en) * 2014-11-04 2016-05-23 株式会社イノアックコーポレーション Seat pad-containing air distribution duct main member and manufacturing method of the same
JP2018076044A (en) * 2016-11-11 2018-05-17 株式会社イノアックコーポレーション Seat pad for vehicle and manufacturing method thereof
JP2019024937A (en) * 2017-07-28 2019-02-21 株式会社ブリヂストン Seat pad and chair seat

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