JPH0828271B2 - Seat heater - Google Patents
Seat heaterInfo
- Publication number
- JPH0828271B2 JPH0828271B2 JP3070627A JP7062791A JPH0828271B2 JP H0828271 B2 JPH0828271 B2 JP H0828271B2 JP 3070627 A JP3070627 A JP 3070627A JP 7062791 A JP7062791 A JP 7062791A JP H0828271 B2 JPH0828271 B2 JP H0828271B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- heater
- seat
- flexible
- seat heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Surface Heating Bodies (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、寒冷地における自動車
等の車両の座席に組み込まれるシートヒータに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat heater incorporated in a seat of a vehicle such as an automobile in a cold region.
【０００２】[0002]
【従来の技術】この種シートヒータに要求される特性
は、着座フィーリングを損うことがないよう可撓性及び
クッション性に優れること、及び着座負荷が加わっても
破損することがないよう機械的強度が優れていることで
ある。2. Description of the Related Art The characteristics required for a seat heater of this kind are that it is excellent in flexibility and cushioning so as not to impair the seating feeling, and that it is not damaged even if a seating load is applied. That is, the physical strength is excellent.
【０００３】従来シートヒータとしては、発泡ウレタン
等の柔軟性及びクッション性が良好なシート体で蛇行配
線されたヒータ線を挾んだものや、発熱効率を上げるた
め発泡シート体上にヒータ線を配線しその上に配線乱れ
防止用の薄肉シートを貼着したもの（特公平２−３１４
６９号）等がある。As a conventional seat heater, a heater wire sandwiched by meandering wirings of a sheet body having good flexibility and cushioning property such as urethane foam, or a heater wire on the foamed sheet body for increasing heat generation efficiency. Wiring and a thin sheet attached on top of it to prevent wiring distortion (Japanese Patent Publication No.
No. 69) etc.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら前者にお
いては、ヒータ線が発泡シートで挾まれているので着座
フィーリングは良好であるものの、発泡シート自体機械
的強度が低いので繰り返し着座負荷により破れが生じや
すいという不都合がある。また後者においては、ヒータ
線が発泡シート表面に配線されているので、着座時にヒ
ータ線が座席の表皮シート表面に凹凸を形成するため、
着座フィーリングが悪くなるという欠点があった。However, in the former case, since the heater wire is sandwiched by the foamed sheet, the seating feeling is good, but the foamed sheet itself has low mechanical strength, so that it repeatedly tears due to a seating load. There is a disadvantage that it is easy. Further, in the latter, since the heater wire is wired on the surface of the foam sheet, the heater wire forms irregularities on the surface of the skin sheet of the seat when seated,
There was a drawback that the sitting feeling was bad.
【０００５】[0005]
【発明の目的】本発明は着座フィーリングを損なうこと
がなく、機械的強度に優れたシートヒータを提供するこ
とを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a seat heater having excellent mechanical strength without impairing the seating feeling.
【０００６】[0006]
【課題を解決するための手段】本発明のシートヒータ
は、対向する面の少なくとも一方側に接着層を設けた２
枚の可撓性発泡シートの間に、ヒータ線と、前記発泡シ
ートを補強する可撓性シート状補強体とを挟み込んでな
り、前記可撓性シート状補強体はガーレー法により測定
した気密度が１００秒／１００ｃｃ以下の高気孔度のも
のであることを特徴とするものである。すなわち、ヒー
タ線を可撓性発泡シートで挟むサンドイッチ構造とする
ことにより着座フィーリングを良好なものとすると共
に、補強体を具備させることにより引張り強度や破断強
度等の機械的強度を向上させるものである。The seat heater of the present invention has an adhesive layer provided on at least one side of opposing surfaces.
A heater wire and a flexible sheet-like reinforcing body that reinforces the foamed sheet should not be sandwiched between the flexible foamed sheets.
The flexible sheet-shaped reinforcement is measured by the Gurley method.
High porosity of less than 100 seconds / 100 cc
Nodea is Rukoto characterized in. That is, a sandwich structure in which the heater wire is sandwiched between flexible foam sheets improves the seating feeling, and a reinforcing body is provided to improve mechanical strength such as tensile strength and breaking strength. Is.
【０００７】 また前記補強体も可撓性発泡シートで挟
む構造として中間層的に補強体を介在させる構成するこ
とにより、補強体による発泡シートの機械的強度の補強
が、発泡シートのいずれかの外面に補強体を被着させる
場合に比べ、効率良く行うことができる。 [0007] The structure and child to interpose an intermediate layer reinforced body as a structure sandwiching the reinforcing member in a flexible foam sheet
By, the reinforcement of the mechanical strength of the foam sheet by the reinforcement
To apply a reinforcement to one of the outer surfaces of the foam sheet
It can be performed more efficiently than in the case.
【０００８】本発明で使用される発泡シートとしては、
着座フィーリングを損わないよう良好なクッション性
と、着座負荷に追随して破損すること無く容易に変形す
るよう良好な可撓性とを具備しているシートが好適であ
る。その材料としては発泡プラスチックが挙げられ、例
えばウレタン、熱可塑性エラストマー、ゴム、可塑化し
た各種のプラスチック等のポリマーの発泡体が使用で
き、好ましい密度は１０〜１００ｋｇ／ｍ3 、特に好ま
しくは２０〜５０ｋｇ／ｍ3 である。また、万が一ヒー
タ線が断線した場合に着火しないよう、難燃性に優れた
材料を使用することが望ましい。The foamed sheet used in the present invention includes:
A seat having a good cushioning property so as not to impair the seating feeling and a good flexibility so as to easily deform without being damaged by following a seating load is preferable. Examples of the material include foamed plastics. For example, foamed bodies of polymers such as urethane, thermoplastic elastomer, rubber, and various plasticized plastics can be used, and the preferable density is 10 to 100 kg / m 3 , and particularly preferably 20 to It is 50 kg / m 3 . In addition, it is desirable to use a material having excellent flame retardancy so as not to ignite when the heater wire is broken.
【０００９】本発明で使用される補強体として好適な条
件は、上記発泡シートと同様に可撓性に優れているこ
と、シートヒータが厚肉とならないよう薄いシート状で
あること、発泡シートの引張り性、破断性を向上させ得
るよう機械的な強度に優れていることなどが挙げられ
る。このような補強体としては、例えばナイロン、芳香
族ポリアミド、ポリエステル等の合成繊維、麻、ジュー
ト、木綿等の天然繊維の織布または不織布が好適に使用
される。これ以外に上記の条件を満たすプラスチックシ
ート等も使用することができる。Suitable conditions for the reinforcing member used in the present invention are that it is as flexible as the above-mentioned foam sheet, that it is a thin sheet so that the seat heater does not become thick, and that the foam sheet has For example, it has excellent mechanical strength so as to improve tensile properties and breakability. As such a reinforcing material, for example, synthetic fibers such as nylon, aromatic polyamide and polyester, and woven or non-woven fabric of natural fibers such as hemp, jute and cotton are preferably used. Other than this, a plastic sheet or the like satisfying the above conditions can also be used.
【００１０】本発明の好ましい実施態様は、図１に示す
ようにヒータ線１を２枚の可撓性シート状補強体３１，
３２間に配置すると共に、ホットメルト接着等を使用し
てこれらを一体化し、この両面に接着層２０を介して可
撓性発泡シートで挾み、接着一体化したものである。In a preferred embodiment of the present invention, as shown in FIG. 1, the heater wire 1 is provided with two flexible sheet-like reinforcing members 31,
It is arranged between 32, and these are integrated by using hot melt adhesion or the like, and sandwiched by a flexible foam sheet with adhesive layers 20 on both sides thereof and bonded and integrated.
【００１１】本発明の他の好ましい実施態様は、図２に
示すように発泡シート２３上にヒータ線１を配線し、そ
の上に一枚の補強体３３を載置し、更にその上に接着層
２０を介して発泡シート２４を設けて一体化した構成で
ある。In another preferred embodiment of the present invention, as shown in FIG. 2, the heater wire 1 is laid on the foamed sheet 23, on which a piece of the reinforcing body 33 is placed, and further bonded thereon. The foamed sheet 24 is provided via the layer 20 so as to be integrated.
【００１２】 本発明においては、補強体として、ガー
レー法で測定した気密度が１００秒／１００ｃｃ以下の
もの、好ましくは５０秒／１００ｃｃ以下の高気孔度の
ものが使用される。このような補強体を用いることによ
り、２枚の発泡シートを接着させる際、双方の発泡シー
トに接着剤を設けずとも、接着層をいずれか１枚の発泡
シートに設けておけば、接着時に接着剤が補強体の気孔
から滲みだし結果として２枚の発泡シートを接着できる
ので、製造が容易になるとともに接着材料が節約できる
などの利点がある。なお本発明で言うガーレー法で測定
した気密度とは、ＪＩＳ Ｐ８１１７に準拠して、シー
ト状材料の一定面積（６４５ｍｍ 2 ）を１００ｃｃの空
気が通過する時間に基づいて定義したものである。すな
わち、前記の空気の通過時間が短い程、一般にそのシー
ト状材料は大きな孔径の孔を多数有するものであること
を意味しており、本発明の補強体はこのようなシート材
料のうち、特に１００秒／１００ｃｃ以下のものを用い
るものである。逆に空気の通過時間が長いものは孔径が
極めて小さいシート状材料であり、このようなシート材
料では前述の接着剤の滲みだしが期待できないため、本
発明の補強体としては不適切である。 In the present invention, a gar is used as the reinforcement.
Airtightness measured by the Lae method is 100 seconds / 100 cc or less
Of high porosity, preferably less than 50 seconds / 100 cc
Stuff used. By using such a reinforcement
Therefore, when two foam sheets are bonded together, if the adhesive layer is provided on any one of the foam sheets without providing the adhesive on both foam sheets, the adhesive will be removed from the pores of the reinforcing body at the time of bonding. As a result of bleeding, the two foam sheets can be bonded together, which is advantageous in that the manufacturing is easy and the bonding material can be saved. In addition, it is measured by the Gurley method referred to in the present invention.
The airtightness is based on JIS P8117.
A certain area (645 mm 2 ) of the tongue-shaped material is emptied with
It is defined based on the time that air passes. sand
That is, the shorter the passage time of the air, the more
Tooth-shaped material has many large pores
Means that the reinforcing material of the present invention is such a sheet material.
Of the charges, especially those of 100 seconds / 100 cc or less are used
It is something. Conversely, if the air passage time is long, the pore size
It is an extremely small sheet material, and such sheet material
The above-mentioned bleeding of the adhesive cannot be expected with a
It is unsuitable as a reinforcement of the invention.
【００１３】[0013]
【実施例】可撓性発泡シートとして、厚さ２mm、密度３
１ｋｇ／ｍ3 の発泡ウレタンシート（井上エムテーピー
株式会社ウレタンフォーム品番ＥＬ６８−３）２枚を、
ヒーター線として直径０．０８mmのＮｉ−Ｃｕ合金線の
７ケ撚上にＰＴＦＥ絶縁を施した外径０．６mmのもの
を、補強体として厚さ０．２mmのナイロン繊維のトリコ
ット織布（ダイエツ株式会社ナイロントリコット品番７
０００；ガーレー法で測定した気密度４０秒／１００ｃ
ｃ以下）をそれぞれ使用し、下記の製法で本発明にかか
るシートヒータを作成した。[Example] A flexible foam sheet having a thickness of 2 mm and a density of 3
Two 1 kg / m 3 urethane foam sheets (Inoue MTP Corporation urethane foam part number EL68-3)
As a heater wire, a Ni-Cu alloy wire with a diameter of 0.08 mm and an outer diameter of 0.6 mm in which PTFE insulation is applied on 7 twists are used as a reinforcement body, and a nylon fiber tricot woven cloth with a thickness of 0.2 mm (Dietz Nylon tricot part number 7
000; Airtightness measured by Gurley method 40 seconds / 100c
The sheet heater according to the present invention was manufactured by the following manufacturing method using the respective c ) and below.
【００１４】表面に多数本の釘（長さ１９mm，直径１．
４７mm）が突出している厚さ６mmの鉄板上に、上記発泡
ウレタンシート１枚を釘を貫通させて装着し、前記釘を
利用してヒータ線を蛇行状に配線し、その上に補強体と
してのナイロントリコット織布を載せ、更にその上に接
着剤としてのホットメルトフィルム（三井東圧化学株式
会社商品名ノイネッツＥ８０３）を介して、もう１枚の
発泡ウレタンシートをいずれも前記の釘を貫通させて載
せ、積層体を形成する。A large number of nails (length 19 mm, diameter 1.
47 mm) is projected on an iron plate having a thickness of 6 mm, and one of the urethane foam sheets is attached with a nail penetrating the heater wire, and the heater wire is laid in a meandering shape using the nail as a reinforcing body. Nylon tricot woven fabric is placed on top of this, and another urethane foam sheet is pierced through the nail with a hot melt film (Mitsui Toatsu Chemicals Co., Ltd. Neunets E803) as an adhesive. Then, the stacked body is formed by stacking.
【００１５】この積層体上に、前記釘の貫通孔を有する
厚さ６mmの鉄板を被せ、該鉄板に面状発熱体を隣接させ
る。そして前記積層体に２５ｇ／cm2 の加圧状態で１２
５℃／１分の加圧加熱を行って２枚の発泡ウレタンシー
トを接着させ、図２に示すような断面構造のシートヒー
タを得た。該シートヒータにおける２枚の発泡ウレタン
シートの接着性は良好であり、接着剤としてのホットメ
ルトフィルムが熱で溶融してトリコット織布の気孔を通
過し、その結果両者を強固に接着していることが確認さ
れた。An iron plate having a thickness of 6 mm having a through hole for the nail is covered on the laminated body, and the sheet heating element is adjacent to the iron plate. Then, the laminated body is applied with a pressure of 25 g / cm 2 for 12
Pressurization and heating at 5 ° C./1 minute were performed to bond the two urethane foam sheets together to obtain a sheet heater having a sectional structure as shown in FIG. The adhesive properties of the two urethane foam sheets in the sheet heater are good, and the hot melt film as an adhesive is melted by heat and passes through the pores of the tricot woven fabric, and as a result, they are firmly adhered. It was confirmed.
【００１６】本実施例と比較のため、上記と同様の２枚
の発泡ウレタンシート、ヒータ線及びホットメルトフィ
ルムを使用し、トリコット織布補強体を介在させない以
外は実施例と同様のシートヒータを作成した。For the purpose of comparison with this embodiment, a seat heater similar to that of the embodiment is used except that the same two urethane foam sheets, the heater wire and the hot melt film as described above are used and the tricot woven fabric reinforcement is not interposed. Created.
【００１７】上記実施例及び比較例で製作したシートヒ
ータからそれぞれ２０cm四方のサンプルをそれぞれ切り
出し、一辺を固定してその対辺側から引張り荷重を加え
引張り強度試験を行った。その結果、比較例品は５．５
kgの荷重で部分的な破断が生じたが、実施例品は２０kg
の荷重を加えても破断は認められなかった。A 20 cm square sample was cut out from each of the seat heaters manufactured in the above Examples and Comparative Examples, one side was fixed, and a tensile load was applied from the opposite side to perform a tensile strength test. As a result, the comparative example product was 5.5.
Partial fracture occurred with a load of kg, but the example product is 20 kg
No fracture was observed even when a load of 1 was applied.
【００１８】これらシートヒータを座席に組み込んだ場
合の荷重負荷試験を模擬的に実施すべく、実施例品及び
比較例品から２０cm四方の別のサンプルをそれぞれ切り
出し、これらサンプルを厚さ２００mmで表面が平滑面で
ある柔軟性に優れた発泡ウレタンパッド上に載置すると
共に、その四辺を前記パットに固定し、先端部が半径１
０mmの半球状とされたプラスチック棒を、サンプルの中
央部付近にそれぞれ押し付けた。その結果、比較例品は
パッドに約３０mmプラスチック棒が押し込まれた時点で
破断が生じたが、実施例品はプラスチック棒が約５０mm
パッドに押し込まれた時点でも破断は生じなかった。In order to perform a load test in a case where these seat heaters are incorporated in a seat, another sample of 20 cm square is cut out from each of the example product and the comparative example product, and these samples are surface-mounted with a thickness of 200 mm. Is placed on a urethane foam pad that is a smooth surface and has excellent flexibility, and its four sides are fixed to the pad, and the tip has a radius of 1
A 0 mm hemispherical plastic rod was pressed near the center of the sample. As a result, the comparative example product broke when the plastic rod was pushed into the pad by about 30 mm, but the example product had a plastic rod of about 50 mm.
No fracture occurred even when pressed into the pad.
【００１９】着座フィーリングを確認するために、自動
車用座席シートの座席パットと革製の表皮カバー（厚さ
２mm）との間に本実施例品シートヒータを挿入し、その
座席シートに実際に１０人を着座させ、シートヒータを
挿入していない座席シートと座り比べて違和感の有無を
インタビユーした。その結果、座席直下にヒータ線が存
在していることによる違和感を訴えるものはなく、本実
施例品シートヒータが座席シートへの実装状態において
良好な着座フィーリングを有していることが確認され
た。In order to confirm the seating feeling, the seat heater of this embodiment is inserted between the seat pad of the automobile seat and the leather skin cover (thickness 2 mm), and the seat is actually put on the seat. Ten people were seated, and I interviewed them to find out if there was something uncomfortable compared with sitting without a seat heater. As a result, there was no complaint of discomfort due to the presence of the heater wire just below the seat, and it was confirmed that the seat heater of this embodiment has a good seating feeling when mounted on the seat. It was
【００２０】ところで、シートヒータの座席シートへの
装着手段としては、座席のクッション材であるウレタン
パッドに接着剤を用いて直接貼着する方法、縫い糸を使
用して表皮カバーに縫着する方法がある。本実施例品は
貼り付けタイプに適用できるのは勿論のこと、補強体を
具備しているので縫い糸による装着にも適している。こ
れに対し上記した比較例品では縫着した場合、縫着部に
破れが生じるため適用不可能である。By the way, as a means for attaching the seat heater to the seat, there are a method of directly adhering a urethane pad, which is a cushion material of the seat, with an adhesive, and a method of sewing to a skin cover using a sewing thread. is there. The product of this embodiment can be applied not only to the pasting type but also to the attachment by the sewing thread because it has the reinforcing body. On the other hand, when the above-mentioned comparative example product is sewn, it is not applicable because the sewn portion is torn.
【００２１】[0021]
【効果】以上説明した通りの本発明のシートヒータによ
れば、ヒータ線が可撓性発泡シートに挾まれた状態であ
るので、着座荷重が加わってもヒータ線の存在による凹
凸は前記発泡シートで吸収され、着座者に違和感を与え
ることのない良好な着座フィーリングを提供できる。According to the seat heater of the present invention as described above, since the heater wire is sandwiched by the flexible foamed sheet, the unevenness due to the presence of the heater wire causes the unevenness of the foamed sheet even if a seating load is applied. Therefore, it is possible to provide a good seating feeling that is absorbed by and does not make the seated person feel uncomfortable.
【００２２】また、可撓性シート状補強体を備えている
ので、シートヒータの引張り強度や破断性などの機械的
特性を向上させることができ、従って耐久性に優れたシ
ートヒータとすることができるなど、本発明は優れた効
果を奏するものである。Further, since the flexible sheet-shaped reinforcing member is provided, the mechanical characteristics such as tensile strength and breakability of the seat heater can be improved, and thus the seat heater having excellent durability can be obtained. Thus, the present invention has excellent effects.
【図１】本発明のシートヒータの実施例を示す断面図で
ある。FIG. 1 is a sectional view showing an embodiment of a seat heater of the present invention.
【図２】本発明のシートヒータの他の実施例を示す断面
図である。FIG. 2 is a sectional view showing another embodiment of the seat heater of the present invention.
１ ヒータ線 ２１，２２，２３，２４ 可撓性発泡シート ３１，３２，３３ 可撓性シート状補強体 1 Heater Wires 21, 22, 23, 24 Flexible Foam Sheets 31, 32, 33 Flexible Sheet Reinforcement
Claims (3)
を設けた２枚の可撓性発泡シートの間に、ヒータ線と、
前記発泡シートを補強する可撓性シート状補強体とを挟
み込んでなり、前記可撓性シート状補強体はガーレー法
により測定した気密度が１００秒／１００ｃｃ以下の高
気孔度のものであることを特徴とするシートヒータ。1. An adhesive layer on at least one side of opposing surfaces.
Between the two flexible foam sheets provided with the heater wire ,
Clamping a flexible sheet-like reinforcing member for reinforcing the foamed sheet
The flexible sheet-like reinforcement is embedded by the Gurley method
Airtightness measured by high 100 sec / 100 cc or less
A seat heater, characterized in der Rukoto things porosity.
布又は不織布からなることを特徴とする請求項１記載の
シートヒータ。2. The reinforcing member is a woven material of natural or synthetic fiber.
The seat heater according to claim 1, wherein the seat heater is made of cloth or non-woven cloth .
タ線を配置し、その少なくとも片面に接着層を介して２
枚の可撓性発泡シートで挟んだことを特徴とする請求項
１記載のシートヒータ。3. A heater is provided between two flexible sheet-like reinforcements.
2 on each side with an adhesive layer on at least one side.
The sheet heater according to claim 1, wherein the sheet heater is sandwiched between a plurality of flexible foam sheets .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3070627A JPH0828271B2 (en) | 1991-03-11 | 1991-03-11 | Seat heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3070627A JPH0828271B2 (en) | 1991-03-11 | 1991-03-11 | Seat heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04282591A JPH04282591A (en) | 1992-10-07 |
| JPH0828271B2 true JPH0828271B2 (en) | 1996-03-21 |
Family
ID=13437057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3070627A Expired - Lifetime JPH0828271B2 (en) | 1991-03-11 | 1991-03-11 | Seat heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0828271B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011189007A (en) * | 2010-03-15 | 2011-09-29 | Raydent Kogyo Kk | Post-installation electric warmer for chair |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005279070A (en) * | 2004-03-30 | 2005-10-13 | T S Tec Kk | Base fabric material for fixing heating wire of vehicle seat heater and vehicle seat heater and vehicle seat |
| SE528332C2 (en) * | 2004-09-16 | 2006-10-24 | Kongsberg Automotive Ab | Heated cushion for vehicle seat has fastening materials provided on opposing main surfaces of upper and lower portions for engagement with each other to enclose and fix heating coil within cushion |
| JP6512816B2 (en) * | 2014-12-23 | 2019-05-15 | 株式会社クラベ | Heater unit and steering wheel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575093U (en) * | 1978-11-16 | 1980-05-23 | ||
| JPS56119295U (en) * | 1980-02-14 | 1981-09-11 | ||
| JPH02124698U (en) * | 1989-03-25 | 1990-10-15 |
-
1991
- 1991-03-11 JP JP3070627A patent/JPH0828271B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011189007A (en) * | 2010-03-15 | 2011-09-29 | Raydent Kogyo Kk | Post-installation electric warmer for chair |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04282591A (en) | 1992-10-07 |
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