JP2014151126A - Sheet shaped heater and seat with lap robe including the same - Google Patents

Sheet shaped heater and seat with lap robe including the same Download PDF

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JP2014151126A
JP2014151126A JP2013025995A JP2013025995A JP2014151126A JP 2014151126 A JP2014151126 A JP 2014151126A JP 2013025995 A JP2013025995 A JP 2013025995A JP 2013025995 A JP2013025995 A JP 2013025995A JP 2014151126 A JP2014151126 A JP 2014151126A
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sheet
power receiving
seat
terminals
heating element
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JP6020231B2 (en
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Hironobu Kondo
広宣 近藤
Koichi Kurebayashi
孝一 紅林
Daisuke Tsukiyama
大輔 築山
Akifumi Hori
昭文 堀
Naoya Amano
直哉 天野
toshihiro Itaya
俊弘 板屋
Yusuke Miyata
裕介 宮田
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Toyota Boshoku Corp
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Toyota Boshoku Corp
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  • Seats For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a sheet shaped heater and a seat with a lap robe having the sheet shaped heater in which heat can be generated only on a drown part of a sheet for warming up with no waste in a lap robe type heating apparatus in which a sheet having a heat generator can be drown in a required length from a housing.SOLUTION: A sheet shaped heater 2 and a seat with a lap robe 1 having the sheet shaped heater 2 include: a long sheet 4; a housing 3 configured to wind up the sheet from a base side 47, a front end side 48 of the sheet to be drawn from the housing for use; a heat generator 42 disposed on the sheet, the heat generator having a wiring pattern in which a first half wiring extending from the base side to the front end side and a second half wiring extending in an opposite direction from the first half wiring are connected at the front end side; and a plurality of pairs of passive terminals disposed on the sheet at predetermined intervals in a longitudinal direction of the sheet, in which two of the passive terminals 431, 441, for example, each connected to the first half wiring and the second half wiring of the heat generator on the sheet are in a pair; and a pair of feeding terminals 33, 34 located in a vicinity of an opening of the housing and electrically connected to one of the pairs of the passive terminals.

Description

本発明はシート状ヒータ装置及びそれを備える膝掛け付き座席に関し、詳しくは、発熱体が設けられたシートを収納部から必要な分だけ引き出して使用し、その引き出されたシート部分のみを発熱させて暖房するシート状ヒータ装置及びそれを備える膝掛け付き座席に関する。   The present invention relates to a sheet-like heater device and a seat with a kneerest provided with the same, and more specifically, a seat provided with a heating element is used by being pulled out from a storage portion as much as necessary, and only the pulled-out seat portion is heated. The present invention relates to a sheet-like heater device for heating and a seat with a kneerest provided with the same.

従来、自動車等の車両で使用するための膝掛け型の暖房装置が開示されている（例えば特許文献１を参照。）。このような膝掛け型の暖房装置は、抵抗発熱体等を膝掛けシート内に設け、それを発熱させることにより膝等を加温することができる。また、特許文献１に記載されている自動車用暖房装置は、座席の横に収納装置を設け、シート状部材を収納装置内に巻き取って収納することができる。   2. Description of the Related Art Conventionally, a knee-mount type heating device for use in a vehicle such as an automobile has been disclosed (see, for example, Patent Document 1). Such a knee-hanging type heating apparatus can heat a knee or the like by providing a resistance heating element or the like in the knee-hanging sheet and generating heat. Moreover, the heating apparatus for motor vehicles described in patent document 1 can provide a storage apparatus beside a seat, and can wind up and store a sheet-like member in a storage apparatus.

特開２０１０−２３７８２号公報JP 2010-23787 A

しかし、前記特許文献１に記載されるような従来の膝掛け型暖房装置おいては、収納装置内から全てのシート状部材を引き出すことなく通電すると、収納装置内に巻き取られている部分のシート状部材の発熱体も発熱することになる。そのため、着座者の加温に役立たない部分を発熱させて無駄な電力を消費するという問題があった。また、巻き取られている発熱シートから発生した熱が収納装置内にこもってしまうという問題があった。   However, in the conventional knee-mount type heating device as described in Patent Document 1, when energized without pulling out all the sheet-like members from the inside of the storage device, the portion of the sheet wound in the storage device The heating element of the shaped member also generates heat. Therefore, there is a problem that wasteful power is consumed by generating heat in a portion that is not useful for heating the seated person. In addition, there is a problem that heat generated from the heat generating sheet being wound is trapped in the storage device.

本発明は、上記の状況に鑑みてなされたものであり、発熱体が設けられたシートを収納部から必要な分だけ引き出して使用する膝掛け型の暖房装置において、引き出されたシート部分のみを発熱させて無駄なく暖房するシート状ヒータ装置及びそれを備える膝掛け付き座席を提供することを目的とする。   The present invention has been made in view of the above situation, and in a knee-hanging type heating device that uses a sheet provided with a heating element by pulling out a necessary amount from a storage unit, only the pulled-out sheet portion generates heat. It is an object of the present invention to provide a sheet-like heater device that can be heated without waste and a seat with a kneerest provided with the same.

前記問題点を解決するために、本第１発明は、長尺で可撓性を有するシートと、前記シートを長尺方向の根本側から順に巻き取る収納部とを備え、前記シートの長尺方向の先端側が前記収納部から引き出されて用いられるシート状ヒータ装置であって、前記シートに配設され、前記根本側から前記先端側に向かう往路配線と逆向きの復路配線とを前記先端側で接続した配線パターンにより形成される発熱体と、前記シートの幅方向に離隔して設けられ前記発熱体の往路配線及び復路配線とそれぞれ接続された２つの端子を１組の受電端子とし、前記シートの長尺方向に所定間隔で配設された複数組の受電端子と、前記収納部から前記シートが引き出される開口部近傍に設けられ、いずれか１組の前記受電端子と電気的に接続される１組の給電端子と、を備え、前記シートの引き出し量によって１組の前記給電端子と接続される１組の前記受電端子が切り替わり、前記発熱体のうち当該受電端子から先端側のみに通電されることを要旨とする。
本第２発明は、本第１発明において、１組の前記給電端子と１組の前記受電端子とが係合することにより前記シートの引き出し量が固定されることを要旨とする。
本第３発明は、本第１発明において、前記収納部から前記シートが引き出される開口部近傍に、１組の前記受電端子と係合することによって前記シートの引き出し量を固定する係合部を備えることを要旨とする。
本第４発明は、本第１乃至第３発明のいずれかにおいて、前記収納部に、前記シートの根本側が固定される回転軸を備え、前記回転軸は前記シートを巻き取る方向に付勢されていることを要旨とする。
本第５発明の膝掛け付き座席は、本第１乃至第４発明のいずれかのシート状ヒータ装置を備えることを要旨とする。 In order to solve the above problems, the first invention includes a long and flexible sheet, and a storage unit for winding the sheet in order from the root side in the long direction. A sheet-like heater device that is used by being pulled out from the storage portion in the direction of the direction, and is arranged on the sheet, and the forward wiring from the root side toward the distal side and the backward wiring in the opposite direction are arranged on the distal side The heating element formed by the wiring pattern connected in the above, and the two terminals provided separately from each other in the width direction of the sheet and connected to the forward wiring and the backward wiring of the heating element as a set of power receiving terminals, A plurality of sets of power receiving terminals arranged at predetermined intervals in the longitudinal direction of the sheet, and provided in the vicinity of an opening from which the sheet is drawn out from the storage portion, and is electrically connected to any one of the power receiving terminals. One set of power supply A pair of the power receiving terminals connected to the pair of power feeding terminals according to a drawing amount of the sheet, and the power source is energized only from the power receiving terminal to the tip side of the heating element. And
The gist of the second invention is that, in the first invention, the drawing amount of the sheet is fixed by engaging one set of the power supply terminals and one set of the power receiving terminals.
According to a third aspect of the present invention, in the first aspect of the present invention, an engaging portion that fixes the amount of the sheet to be pulled by engaging with a set of the power receiving terminals in the vicinity of the opening from which the sheet is pulled out from the storage portion. The gist is to provide.
According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the storage portion includes a rotation shaft to which a root side of the sheet is fixed, and the rotation shaft is biased in a direction in which the sheet is wound up. It is a summary.
The gist of the fifth invention is provided with the seat heater device according to any one of the first to fourth inventions.

第１発明によれば、長尺で可撓性を有するシートとそれを巻き取る収納部とを備え、シートが収納部から引き出されて用いられるシート状ヒータ装置であって、シートに配設され、シートの根本側から先端側に向かう往路配線と逆向きの復路配線とが先端側で接続された配線パターンにより形成される発熱体と、シートの幅方向に離隔して設けられ発熱体の往路配線及び復路配線とそれぞれ接続された２つの端子を１組の受電端子とし、シートの長尺方向に所定間隔で配設された複数組の受電端子と、収納部からシートが引き出される開口部近傍に設けられ、いずれか１組の受電端子と電気的に接続される１組の給電端子と、を備え、シートの引き出し量によって１組の給電端子と接続される１組の受電端子が切り替わり、発熱体のうち当該受電端子から先端側のみに通電されるため、収納部からのシートの引き出し量に応じた位置の受電端子が給電端子と接続され、引き出した範囲にある発熱体部分のみが通電により発熱し、収納部に収納されているシート部分に配線されている発熱体には通電されない。これによって、使用されている部分のみにより暖房を行うことができ、無駄な電力消費を防止することができる。また、収納部内で発熱体が発熱して熱がこもることがない。   According to the first aspect of the present invention, there is provided a sheet-like heater device that includes a long and flexible sheet and a storage unit that winds the sheet, and is used by being pulled out of the storage unit. A heating element formed by a wiring pattern in which the forward wiring from the root side to the leading edge side of the sheet and the backward wiring in the opposite direction are connected at the leading edge side, and the outgoing path of the heating element provided separately in the width direction of the sheet Two terminals connected to each of the wiring and the return wiring are used as one set of receiving terminals, a plurality of sets of receiving terminals arranged at predetermined intervals in the longitudinal direction of the sheet, and the vicinity of the opening from which the sheet is drawn out from the storage unit A set of power feeding terminals electrically connected to any one set of power receiving terminals, and the one set of power receiving terminals connected to the one set of power feeding terminals is switched according to the amount of sheet withdrawal, Of the heating element Since power is supplied only from the electrical terminal to the front end side, the power receiving terminal at a position corresponding to the amount of the sheet pulled out from the storage unit is connected to the power supply terminal, and only the heating element portion within the pulled-out range generates heat and is stored. The heating element wired in the sheet portion housed in the section is not energized. Thereby, heating can be performed only by the used part, and wasteful power consumption can be prevented. In addition, the heating element does not generate heat in the storage section and the heat does not accumulate.

１組の前記給電端子と１組の前記受電端子とが係合することにより前記シートの引き出し量が固定される場合は、シート上の発熱体への電源供給とシートの引き出し量の固定とを１つにまとめて行うことができ、部品点数を減らすことができる。また、物理的係合と電気的接続が同時に行われるため、シートが引き出された状態で固定されないと通電されず、不要な電力消費を防止すると共に、安全性を向上させることができる。
前記収納部から前記シートが引き出される開口部近傍に、１組の前記受電端子と係合することによって前記シートの引き出し量を固定する係合部を備える場合には、引き出されたシートを係合部により確実に固定することができる。
前記収納部に、前記シートの根本側が固定される回転軸を備え、前記回転軸は前記シートを巻き取る方向に付勢されている場合は、引き出された状態における係合を解除すれば回転軸によりシートを収納部内に巻き取ることができ、利便性を向上させることができる。 When the sheet pull-out amount is fixed by engaging one set of the power supply terminals and one set of the power receiving terminals, power supply to the heating element on the sheet and fixing of the sheet pull-out amount are performed. The number of parts can be reduced. Further, since the physical engagement and the electrical connection are performed at the same time, it is not energized unless the seat is fixed in the pulled-out state, and unnecessary power consumption can be prevented and safety can be improved.
In the case where an engaging portion is provided in the vicinity of the opening from which the sheet is pulled out from the storage portion, the engaging amount is fixed by engaging with a set of the power receiving terminals, the pulled sheet is engaged. It can be securely fixed by the part.
The storage unit includes a rotation shaft to which the base side of the sheet is fixed. When the rotation shaft is biased in the direction of winding the sheet, the rotation shaft can be removed by releasing the engagement in the drawn-out state. Thus, the sheet can be taken up in the storage portion, and convenience can be improved.

本第５発明の膝掛け付き座席は、上記シート状ヒータ装置を備えるため、着座者は収納部から引き出したシート部分を膝掛けとして暖房を得ることができ、引き出していないシート部分の発熱体には通電されないので無駄な電力消費を防止することができる。また、引き出し量に応じてシートが係合される場合には、乗物用の膝掛け付き座席であっても安全性を損なうことがない。   Since the seat with a kneerest according to the fifth aspect of the present invention includes the sheet-like heater device, a seated person can obtain heating by using the seat portion pulled out from the storage portion as a kneerest, and the heating element of the seat portion not pulled out is energized. As a result, wasteful power consumption can be prevented. Further, when the seats are engaged according to the pull-out amount, safety is not impaired even if the seat is a vehicle with a knee-lung.

本発明について、本発明による典型的な実施形態の非限定的な例を挙げ、言及された複数の図面を参照しつつ以下の詳細な記述にて更に説明するが、同様の参照符号は図面のいくつかの図を通して同様の部品を示す。
シート状ヒータ装置を備える自動車用の膝掛け付き座席の構成を示す模式斜視図である。 収納部からシートが全て引き出されたときに、収納部に設けられた給電端子とシート上の発熱体の受電端子とが接続されている状態を説明するための模式図である。 発熱体の配設パターンを簡略に示す模式図である。 発熱体がシートの幅方向に蛇行する配設パターンを簡略に示す模式図である。 発熱体がシートの長尺方向及び幅方向に蛇行する配設パターンを例示する模式図である。 収納部内にシートが巻き取られて収まっている状態を示す模式端面図である。 シートを一部引き出して、収納部の開口部近傍に設けられた給電端子とシート上に設けられた受電端子とが係合された状態を示す模式端面図である。 シートを一部引き出して、収納部の開口部近傍に設けられた給電端子とシート上に設けられた受電端子とが係合された状態を示す模式図である。 The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
It is a model perspective view which shows the structure of the seat with a kneerest for motor vehicles provided with a sheet-like heater apparatus. It is a schematic diagram for demonstrating the state where the electric power feeding terminal provided in the accommodating part and the receiving terminal of the heat generating body on a sheet | seat are connected when all the sheets are pulled out from the accommodating part. It is a schematic diagram which shows simply the arrangement pattern of a heat generating body. It is a schematic diagram which shows simply the arrangement | positioning pattern which a heat generating body meanders in the width direction of a sheet | seat. It is a schematic diagram which illustrates the arrangement | positioning pattern which a heat generating body meanders in the longitudinal direction and width direction of a sheet | seat. It is a model end view which shows the state by which the sheet | seat was wound up and accommodated in the accommodating part. FIG. 6 is a schematic end view showing a state in which a sheet is partially pulled out and a power supply terminal provided near the opening of the storage unit and a power reception terminal provided on the sheet are engaged. FIG. 6 is a schematic diagram illustrating a state in which a sheet is partially pulled out and a power supply terminal provided near the opening of the storage unit and a power reception terminal provided on the sheet are engaged.

以下、図を参照しながら、本発明を詳しく説明する。
ここで示される事項は例示的なもの及び本発明の実施形態を例示的に説明するためのものであり、本発明の原理と概念的な特徴とを最も有効に且つ難なく理解できる説明であると思われるものを提供する目的で述べたものである。この点で、本発明の根本的な理解のために必要である程度以上に本発明の構造的な詳細を示すことを意図してはおらず、図面と合わせた説明によって本発明の幾つかの形態が実際にどのように具現化されるかを当業者に明らかにするものである。 Hereinafter, the present invention will be described in detail with reference to the drawings.
The items shown here are for illustrative purposes and exemplary embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

本シート状ヒータ装置は、長尺で可撓性を有するシートと、そのシートを長尺方向に巻き取る収納部とを備える。シートには発熱体が配設されており、使用者は収納部からシートを引き出して、その引き出した部分の発熱体の発熱によって暖房を得ることができる。
本シート状ヒータ装置を設ける対象は特に限定されず、例えば、自動車等の乗物の任意の座席、室内用途の様々な座席やベッド等に適用することができる。本シート状ヒータ装置を座席に備える場合には、着座者の膝部等を暖める膝掛けとして用いることができる。 The sheet heater device includes a long and flexible sheet and a storage unit that winds the sheet in the long direction. The sheet is provided with a heating element, and the user can draw out the sheet from the storage unit and can obtain heating by generating heat from the drawn part.
The target for providing the sheet heater device is not particularly limited, and can be applied to any seat of a vehicle such as an automobile, various seats and beds for indoor use, and the like. When this seat-like heater device is provided in a seat, it can be used as a kneeling for warming a seated person's knee or the like.

本シート状ヒータ装置は、例えば、乗物用座席に備えられる暖房付きの膝掛けとして好適に用いることができる。図１は、本シート状ヒータ装置を自動車用座席に備える例を表している。この膝掛け付き座席１は、車両に設けられる車両用座席７の座面部７１に、シート状ヒータ装置２が備えられている。座席７の座面部７１の一方の側面には、シート４を収納する収納部３が設けられている。着座者は、収納部３内に巻き取られているシート４を必要に応じて引き出して使用することができる。本例では、座面部７１の他方の側面に、シート４の先端部４５を係合して固定する固定部５が設けられている。   This sheet-like heater device can be suitably used, for example, as a heating stool provided in a vehicle seat. FIG. 1 shows an example in which the seat heater device is provided in an automobile seat. In the seat with a kneerest 1, a seat-like heater device 2 is provided on a seat surface portion 71 of a vehicle seat 7 provided in the vehicle. On one side surface of the seat surface portion 71 of the seat 7, a storage portion 3 that stores the seat 4 is provided. The seated person can pull out and use the sheet 4 wound in the storage unit 3 as necessary. In this example, the fixing portion 5 that engages and fixes the leading end portion 45 of the seat 4 is provided on the other side surface of the seat surface portion 71.

シート４は、通常は一定の幅で引き出した部分を使用するため長尺の形状とされるが、その長さ及び幅は特に限定されない。シート４を引き出す方向の寸法を長さ、それに垂直な方向の寸法を幅とする。また、シート４の巻き取り側の端を「根本」、引き出し側の端を「先端」という。シート４の平面形状は四辺形に限らず、種々変形した形状とすることができる。
また、シート４は、収納部３内に巻き取り可能な可撓性を備える。収納部３内にシート４を収納する方法は特に限定されず、巻き取りに限らず、折り畳み等であってもよい。シート４を収納部３内に巻き取る場合、例えば、収納部３内部に巻き取り軸（回転軸）を設け、その回転軸にシート４の根本を固定しておくことができる。回転軸が巻き取り方向に付勢されるようにすれば利便である。
シート４の材質は特に限定されず、例えば、織布、不織布等を挙げることができる。 The sheet 4 is usually formed in a long shape because it uses a portion pulled out with a constant width, but the length and width are not particularly limited. A dimension in a direction in which the sheet 4 is pulled out is a length, and a dimension in a direction perpendicular to the length is a width. Further, the end of the sheet 4 on the winding side is called “root”, and the end on the drawing side is called “tip”. The planar shape of the sheet 4 is not limited to a quadrilateral and can be variously deformed.
Further, the sheet 4 is provided with a flexibility that allows the sheet 4 to be wound into the storage unit 3. The method for storing the sheet 4 in the storage unit 3 is not particularly limited, and is not limited to winding, but may be folding or the like. When the sheet 4 is wound into the storage unit 3, for example, a winding shaft (rotation shaft) is provided inside the storage unit 3, and the root of the sheet 4 can be fixed to the rotation shaft. It is convenient if the rotating shaft is biased in the winding direction.
The material of the sheet | seat 4 is not specifically limited, For example, a woven fabric, a nonwoven fabric, etc. can be mentioned.

上記シート４には、発熱体４２が配設される。発熱体は、通電によって発熱するものである限り問わず、例えば、ステンレス、銅、ニクロム、タングステン、カーボン等を用いた抵抗発熱体を用いることができる。発熱体の配設方法は特に限定されず、シート４の内部又は表層に形成することができる。また、発熱体として織布に織込んだ導電布等を用いることもできる。   A heating element 42 is disposed on the sheet 4. As long as the heating element generates heat when energized, for example, a resistance heating element using stainless steel, copper, nichrome, tungsten, carbon, or the like can be used. The arrangement method of the heating element is not particularly limited, and can be formed inside the sheet 4 or on the surface layer. Further, a conductive cloth woven into a woven cloth can be used as the heating element.

発熱体は、簡略化した発熱体の配線パターンを示す図３に例示するように、シート４の根本側４７から先端側４８への往路配線４２１と、先端側４８から根本側４７への復路配線４２２とを先端側４８で接続した配線パターンにより形成される。すなわち、発熱体４２はシート４の根本部４７から先端部４８を経由して根本部４７に戻るパターン（根本部では接続されていない。）により配線される。上記配線方法である限り、発熱体の具体的な形状は特に限定されず、例えば、全体を１本の線状発熱体としてもよいし、複数の線状又は面状の発熱体を直列に接続して構成してもよい。   As shown in FIG. 3 which shows a simplified wiring pattern of the heating element, the heating elements are forward wiring 421 from the root side 47 to the tip side 48 of the sheet 4 and return wiring from the tip side 48 to the root side 47. It is formed by a wiring pattern in which 422 is connected at the front end side 48. That is, the heating element 42 is wired in a pattern (not connected at the root portion) that returns from the root portion 47 of the sheet 4 to the root portion 47 via the tip portion 48. As long as it is the above wiring method, the specific shape of the heating element is not particularly limited. For example, the whole heating element may be a single linear heating element, or a plurality of linear or planar heating elements are connected in series. You may comprise.

上記発熱体の配線経路には、シート４の幅方向に離隔して設けられ、発熱体の往路配線及び復路配線とそれぞれ接続された２つの端子を１組の受電端子とし、シート４の長尺方向に所定間隔で配設された複数組の受電端子を備えるように構成することができる。１組の受電端子は、例えば、シート４の幅方向の両端部近傍に設けることができる。また、各組の受電端子同士は、シート４の長さ方向の直線上に配設されるのが好ましい。上記「発熱体の往路配線及び復路配線とそれぞれ接続された」とは、発熱体の往路配線上及び復路配線上に設けられる形態であってもよい。また、各組の受電端子は、シート４の長尺方向に一定間隔で配置される必要はなく、適宜の間隔で設けられればよい。
受電端子の形状や大きさは、後述する給電端子と電気的接続が可能である限り問わない。 In the wiring path of the heating element, the two terminals connected to the forward wiring and the return wiring of the heating element are separated from each other in the width direction of the sheet 4 as a set of power receiving terminals. A plurality of sets of power receiving terminals arranged at predetermined intervals in the direction can be provided. One set of power receiving terminals can be provided in the vicinity of both ends of the sheet 4 in the width direction, for example. Moreover, it is preferable that the power receiving terminals of each group are arranged on a straight line in the length direction of the sheet 4. The phrase “connected to the forward wiring and the return wiring of the heating element” may be provided on the forward wiring and the return wiring of the heating element. Further, the power receiving terminals of each set need not be arranged at regular intervals in the longitudinal direction of the sheet 4 and may be provided at appropriate intervals.
The shape and size of the power receiving terminal are not limited as long as the power receiving terminal can be electrically connected to a power feeding terminal described later.

図２は、シート４に発熱体４２を配設したシート状ヒータ装置２の構成例を示している。シート４の全体が収納部３から引き出されており、シート４の基材であるシート本体４１上に、発熱体４２が配線されている。発熱体４２は、シート４の根本側４７の端子４３１から先端側４８を経由して、根本側４７の端子４４１に接続されている。根本側４７の端子４３１及び４４１は、１組の受電端子とすることができる。
発熱体４２の往路配線４２１の経路には、上記受電端子４３１の他、複数の受電端子（４３２−４３６）が設けられている。また、発熱体４２の復路配線４２２の経路には、上記受電端子４４１の他、複数の受電端子（４４２−４４６）が設けられている。１組の受電端子（例えば４３６と４４６）はシート４の幅方向の直線上に配置されており、各組の受電端子はシート４の長さ方向に適宜の間隔で配置されている。 FIG. 2 shows a configuration example of the sheet-like heater device 2 in which the heating element 42 is disposed on the sheet 4. The entire sheet 4 is pulled out from the storage unit 3, and a heating element 42 is wired on a sheet main body 41 that is a base material of the sheet 4. The heating element 42 is connected from the terminal 431 on the root side 47 of the sheet 4 to the terminal 441 on the root side 47 via the tip side 48. The terminals 431 and 441 on the root side 47 can be a set of power receiving terminals.
In addition to the power receiving terminal 431, a plurality of power receiving terminals (432-436) are provided in the route of the forward wiring 421 of the heating element 42. In addition to the power receiving terminal 441, a plurality of power receiving terminals (442-446) are provided in the path of the return wiring 422 of the heating element 42. One set of power receiving terminals (for example, 436 and 446) is arranged on a straight line in the width direction of the sheet 4, and each group of power receiving terminals is arranged at an appropriate interval in the length direction of the sheet 4.

一方、収納部３側には、上記各組の受電端子の幅方向の位置に対応して、１組の給電端子３３及び３４が設けられている。そして、１組の給電端子３３と３４との間には、ヒータ電源６が接続されており、ヒータ電源６がオンのときは、給電端子と接続されている１組の受電端子に電源が供給されるように構成されている。本図においては、シート４全体が引き出された状態であるので、ヒータ電源６は１組の受電端子４３１と４４１との間に接続され、発熱体４２の全区間が通電される。シート４が一部引き出された状態では、その引き出し量に対応した１組の受電端子（例えば４３５と４４５）が給電端子３３及び３４が接続される。そうすると、発熱体４２の前記配線パターンの構成により、その１組の受電端子（４３５と４４５）からシート先端側の配線部分のみが通電されて発熱することとなる。これによって、収納部３から引き出されたシート４の部分のみが暖房効果を奏し、根本側４７の収納されているシート４の部分には通電されないため無駄な電力消費を防止することができる。   On the other hand, a pair of power supply terminals 33 and 34 are provided on the storage unit 3 side, corresponding to the positions in the width direction of the power receiving terminals of each group. A heater power supply 6 is connected between the pair of power supply terminals 33 and 34. When the heater power supply 6 is on, power is supplied to the power reception terminal connected to the power supply terminal. It is configured to be. In this figure, since the entire sheet 4 is pulled out, the heater power source 6 is connected between a pair of power receiving terminals 431 and 441 and the entire section of the heating element 42 is energized. In a state where the sheet 4 is partially pulled out, a pair of power receiving terminals (for example, 435 and 445) corresponding to the pulling amount is connected to the power feeding terminals 33 and 34. Then, due to the configuration of the wiring pattern of the heating element 42, only the wiring portion on the sheet front end side is energized from the set of power receiving terminals (435 and 445) to generate heat. As a result, only the portion of the seat 4 pulled out from the storage section 3 has a heating effect, and the portion of the seat 4 stored on the root side 47 is not energized, so that useless power consumption can be prevented.

図３に示すように、発熱体４２の配線パターンは、簡略化すれば、シート４の根本側４７から先端側４８を経て再び根本側４７に至るパターンであればよい。
図４は、図３に示した発熱体４２の配線をシート４の幅方向に蛇行するように変形させた配線パターンを表している。このような配線パターンの変形により、発熱長及び発熱部位を増やすことができる。図２、図５は、発熱体４２の配線をシート長尺方向の受電端子間を越えないように蛇行するパターンとすることにより、発熱長及び発熱部位を更に増やす例を示している。 As shown in FIG. 3, the wiring pattern of the heating element 42 may be a pattern that extends from the root side 47 of the sheet 4 to the root side 47 again through the front end side 48 if simplified.
FIG. 4 shows a wiring pattern in which the wiring of the heating element 42 shown in FIG. 3 is deformed so as to meander in the width direction of the sheet 4. Due to such deformation of the wiring pattern, the heat generation length and the heat generation portion can be increased. 2 and 5 show an example in which the heat generation length and the heat generation portion are further increased by making the wiring of the heat generating element 42 meander so as not to cross between the power receiving terminals in the sheet length direction.

収納部３は、シート４を巻き取って収納するようにすることができる。例えば、図６に示すように、収納部３内部に回転軸３１、給電端子３３及び３４を備えて構成することができる。回転軸３１は、シート４を巻き取る方向にバネ等によって付勢されている。
給電端子３３及び３４は、シート４上の受電端子４３（４３１、４３２、…）及び４４（４４１、４４２、…）のうちの１組と接触して、当該受電端子に給電するための端子である。給電端子３３及び３４は、収納部３に対してシート４を出し入れする開口部３２の近傍に設けることができる。 The storage unit 3 can wind up and store the sheet 4. For example, as illustrated in FIG. 6, the storage unit 3 can be configured to include a rotation shaft 31 and power supply terminals 33 and 34. The rotary shaft 31 is biased by a spring or the like in the direction in which the sheet 4 is wound up.
The power feeding terminals 33 and 34 are terminals for contacting one set of the power receiving terminals 43 (431, 432,...) And 44 (441, 442,...) On the sheet 4 to feed power to the power receiving terminals. is there. The power supply terminals 33 and 34 can be provided in the vicinity of the opening 32 through which the sheet 4 is taken in and out of the storage unit 3.

シート状ヒータ装置２には、シート４を収納部３から引き出した状態で固定し、且つその位置で給電端子３３及び３４と１組の受電端子４３及び４４との電気的接続を確実にするように、シート４と収納部３とが係合する係合手段を備えることができる。
シート４と収納部３との係合手段は特に限定されないが、給電端子自体と受電端子自体が係合する構造とすることができる。例えば、図６に示すように、各受電端子４３（４４）及び収納部３に設けた給電端子３３（３４）を、相互に係合可能な構造とすることができる。このようにすれば、シート４の引き出し量に対応して、受電端子４３（４４）が設けられている位置で給電端子３３（３４）と係合し、収納部３内へのシート４の巻き取りを妨いでシート４の引き出し状態を固定すると共に、受電端子４３（４４）と給電端子３３（３４）との電気的接続を確実にすることができる。図６に示す例では、受電端子４３（４４）は巻き取り方向に向けて延出する鉤状であるが、これに限られず適宜の形状とすることができる。 In the sheet heater device 2, the sheet 4 is fixed in a state of being pulled out from the storage unit 3, and the electrical connection between the power feeding terminals 33 and 34 and the pair of power receiving terminals 43 and 44 is ensured at the position. In addition, it is possible to provide an engaging means for engaging the seat 4 with the storage portion 3.
The engagement means between the seat 4 and the storage portion 3 is not particularly limited, but a structure in which the power supply terminal itself and the power reception terminal itself are engaged can be employed. For example, as illustrated in FIG. 6, each power receiving terminal 43 (44) and the power feeding terminal 33 (34) provided in the storage unit 3 can be configured to be able to engage with each other. In this way, the sheet 4 is engaged with the power supply terminal 33 (34) at the position where the power receiving terminal 43 (44) is provided, and the sheet 4 is wound into the storage portion 3 in accordance with the amount of the sheet 4 pulled out. It is possible to prevent the sheet 4 from being pulled out and fix the pulled-out state of the sheet 4 and to ensure the electrical connection between the power receiving terminal 43 (44) and the power feeding terminal 33 (34). In the example shown in FIG. 6, the power receiving terminal 43 (44) has a hook shape extending in the winding direction, but is not limited to this, and may have an appropriate shape.

また、シート４と収納部３との係合手段は、給電端子や受電端子とは別に係合部を設けることもできる。例えば、係合部として既知のラッチを設け、そのラッチにより引き出されたシート４が固定されたときに、受電端子４３（４４）と給電端子３３（３４）とが接触するように位置調整されたものとすることができる。公知のラッチには、例えば、カムとカムの先端が巻き取り方向で一時的に接触する構成（特開平１１−１６５９５９号公報を参照。）等がある。   Further, the engaging means between the seat 4 and the storage portion 3 can be provided with an engaging portion separately from the power supply terminal and the power receiving terminal. For example, a known latch is provided as an engaging portion, and the position is adjusted so that the power receiving terminal 43 (44) and the power feeding terminal 33 (34) are in contact with each other when the seat 4 pulled out by the latch is fixed. Can be. Known latches include, for example, a configuration in which the cam and the tip of the cam are in temporary contact with each other in the winding direction (see Japanese Patent Application Laid-Open No. 11-165959).

上記のようなシート状ヒータ装置２を備えた膝掛け付き座席１（図１参照。）は、収納部３からシート４を引き出した後、巻き取り方向に戻すようにして係合手段により固定することができる。そして、シート４の先端部４５を座席１側に設けられた固定部５と係合させて、シート４の先端側を固定することができる。固定部５とシート４の先端部４５との係合方法は特に問わず、既知の方法を任意に適用することができる。
このとき、図７に示すように、収納部３の開口部３２近傍において受電端子４３（４４）は給電端子３３（３４）と係合する。この係合によって、シート４の巻き戻りが止まると共に、受電端子４３（４４）と給電端子３３（３４）とが接触した状態に保たれる。 The seat 1 with kneerest (see FIG. 1) provided with the sheet heater device 2 as described above is fixed by the engaging means so that the seat 4 is pulled out from the storage portion 3 and then returned to the winding direction. Can do. And the front-end | tip side of the sheet | seat 4 can be fixed by engaging the front-end | tip part 45 of the sheet | seat 4 with the fixing | fixed part 5 provided in the seat 1 side. The engagement method between the fixing portion 5 and the leading end portion 45 of the sheet 4 is not particularly limited, and a known method can be arbitrarily applied.
At this time, as shown in FIG. 7, the power receiving terminal 43 (44) engages with the power feeding terminal 33 (34) in the vicinity of the opening 32 of the storage portion 3. This engagement stops the unwinding of the sheet 4 and keeps the power receiving terminal 43 (44) and the power feeding terminal 33 (34) in contact with each other.

図８は、前図に示した係合状態における発熱体４２への給電を説明する図である。本例では、給電端子３３（３４）は受電端子４３５（４４５）と接続されている。したがって、受電端子４３５（４４５）からシートの先端４８側に配線されている発熱体部分４２３に通電され、通電された発熱体部分４２３が発熱して、座席７に着座した着座者の膝部分を加温する。
受電端子４３５（４４５）よりもシートの根本側に配線されている発熱体部分４２４は、回路が形成されないため電流が流れず、発熱することがない。このため、収納部３内で発熱することがなく、余分な電力を消費することがない。 FIG. 8 is a diagram for explaining power feeding to the heating element 42 in the engaged state shown in the previous figure. In this example, the power feeding terminal 33 (34) is connected to the power receiving terminal 435 (445). Therefore, the heating element portion 423 wired on the front end 48 side of the seat is energized from the power receiving terminal 435 (445), the energized heating element portion 423 generates heat, and the knee portion of the seated person seated on the seat 7 is reduced. Warm up.
The heating element portion 424 wired closer to the base side of the sheet than the power receiving terminal 435 (445) does not form a circuit, so no current flows and does not generate heat. For this reason, it does not generate | occur | produce heat in the accommodating part 3, and excess electric power is not consumed.

尚、本シート状ヒータ装置２の利用形態として、自動車用の膝掛け付き座席１における膝掛けを示したが、これに限られず、種々の用途に用いることができる。例えば、自動車用に限らず、各種乗物用の座席に適用することができる。また、マッサージやリラクゼーション用の座席、ベッド等の電気毛布として用いることができる。また、壁面に設けて必要なときにシートを引き出して用いる暖房装置としても用いることができる。   In addition, although the kneerest in the seat 1 with a kneerest for motor vehicles was shown as a utilization form of this sheet-like heater apparatus 2, it is not restricted to this, It can use for various uses. For example, the present invention can be applied not only to automobiles but also to various vehicle seats. It can also be used as an electric blanket for a massage or relaxation seat, bed, or the like. Moreover, it can also be used as a heating device that is provided on the wall surface and is used by pulling out the sheet when necessary.

尚、前述の記載は単に説明を目的とするものでしかなく、本発明を限定するものと解釈されるものではない。本発明を典型的な実施態様を挙げて説明したが、本発明の記述及び図示において使用された文言は、限定的な文言ではなく、説明的及び例示的なものであると理解される。ここで詳述したように、その態様において本発明の範囲又は精神から逸脱することなく、添付の特許請求の範囲内で変更が可能である。ここでは、本発明の詳述に特定の構造、材料及び実施態様を参照したが、本発明をここにおける開示事項に限定することを意図するものではなく、寧ろ、本発明は添付の特許請求の範囲内における、機能的に同等の構造、方法、使用の全てに及ぶものとする。   It should be noted that the above description is for illustrative purposes only and is not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than restrictive. As detailed herein, modifications may be made in the embodiments within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials, and embodiments have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosure herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope.

１；膝掛け付き座席、２；シート状ヒータ装置、３；収納部、３１；巻き取り軸（回転軸）、３２；開口部、３３、３４；（１組の）給電端子、４；シート、４１；シート本体、４２；発熱体、４３（４３１、４３２、…）、４４（４４１、４４２、…）；（１組の）受電端子、４７；シートの根本側、４８；シートの先端側、５；固定部、６；ヒータ電源、７；座席、７１；座面部。   DESCRIPTION OF SYMBOLS 1; Seat with kneerest, 2; Sheet-like heater apparatus, 3; Storage part, 31; Winding axis | shaft (rotating shaft), 32; Opening part, 33, 34; Sheet body, 42; heating element, 43 (431, 432, ...), 44 (441, 442, ...); (one set) power receiving terminal, 47; sheet root side, 48; sheet tip side, 5; Fixed part, 6; heater power supply, 7; seat, 71;

Claims (5)

長尺で可撓性を有するシートと、前記シートを長尺方向の根本側から順に巻き取る収納部とを備え、前記シートの長尺方向の先端側が前記収納部から引き出されて用いられるシート状ヒータ装置であって、
前記シートに配設され、前記根本側から前記先端側に向かう往路配線と逆向きの復路配線とを前記先端側で接続した配線パターンにより形成される発熱体と、
前記シートの幅方向に離隔して設けられ前記発熱体の往路配線及び復路配線とそれぞれ接続された２つの端子を１組の受電端子とし、前記シートの長尺方向に所定間隔で配設された複数組の受電端子と、
前記収納部から前記シートが引き出される開口部近傍に設けられ、いずれか１組の前記受電端子と電気的に接続される１組の給電端子と、
を備え、
前記シートの引き出し量によって１組の前記給電端子と接続される１組の前記受電端子が切り替わり、前記発熱体のうち当該受電端子から先端側のみに通電されることを特徴とするシート状ヒータ装置。 A sheet having a long and flexible sheet, and a storage part that winds the sheet in order from the base side in the longitudinal direction, and the leading end side in the longitudinal direction of the sheet is drawn out from the storage part and used. A heater device,
A heating element formed by a wiring pattern disposed on the sheet and connected on the distal end side to the forward wiring and the backward wiring facing in the opposite direction from the root side toward the distal end side;
The two terminals provided separately in the width direction of the sheet and connected to the forward wiring and the backward wiring of the heating element are set as a pair of power receiving terminals, and are arranged at predetermined intervals in the longitudinal direction of the sheet. Multiple sets of power receiving terminals;
A set of power supply terminals provided in the vicinity of the opening from which the sheet is pulled out from the storage unit, and electrically connected to any one of the power receiving terminals;
With
A sheet-like heater device characterized in that a set of the power receiving terminals connected to a set of the power feeding terminals is switched according to a drawing amount of the sheet, and only the tip side of the heating element is energized from the power receiving terminal. . １組の前記給電端子と１組の前記受電端子とが係合することにより前記シートの引き出し量が固定される請求項１記載のシート状ヒータ装置。   The sheet heater device according to claim 1, wherein the sheet drawing amount is fixed by engaging one set of the power supply terminals and one set of the power receiving terminals. 前記収納部から前記シートが引き出される開口部近傍に、１組の前記受電端子と係合することによって前記シートの引き出し量を固定する係合部を備える請求項１記載のシート状ヒータ装置。   2. The sheet heater device according to claim 1, further comprising: an engaging portion that fixes an amount of drawing of the sheet by engaging with a set of the power receiving terminals in the vicinity of the opening from which the sheet is pulled out from the storage portion. 前記収納部に、前記シートの根本側が固定される回転軸を備え、
前記回転軸は前記シートを巻き取る方向に付勢されている請求１乃至３のいずれかに記載のシート状ヒータ装置。 The storage unit includes a rotation shaft to which a base side of the sheet is fixed,
The sheet-like heater device according to claim 1, wherein the rotation shaft is biased in a direction in which the sheet is wound up. 請求項１乃至４のいずれかに記載のシート状ヒータ装置を備えることを特徴とする膝掛け付き座席。   A seat with a kneerest comprising the sheet-like heater device according to any one of claims 1 to 4.
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Cited By (1)

* Cited by examiner, † Cited by third party
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CN105329129A (en) * 2015-12-09 2016-02-17 重庆春辉科技有限公司 Automotive heating cushion easy to clean

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US4245149A (en) * 1979-04-10 1981-01-13 Fairlie Ian F Heating system for chairs
JPS5972134U (en) * 1982-11-05 1984-05-16 松下電器産業株式会社 Automobile lap device
JPH0310942A (en) * 1989-06-08 1991-01-18 Matsushita Electric Ind Co Ltd Heat taking tool for automobile
JPH11102772A (en) * 1997-09-26 1999-04-13 Arisawa Mfg Co Ltd Sheet heating device
JP2010023782A (en) * 2008-07-24 2010-02-04 Panasonic Corp Heating device for automobile

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US4245149A (en) * 1979-04-10 1981-01-13 Fairlie Ian F Heating system for chairs
JPS5972134U (en) * 1982-11-05 1984-05-16 松下電器産業株式会社 Automobile lap device
JPH0310942A (en) * 1989-06-08 1991-01-18 Matsushita Electric Ind Co Ltd Heat taking tool for automobile
JPH11102772A (en) * 1997-09-26 1999-04-13 Arisawa Mfg Co Ltd Sheet heating device
JP2010023782A (en) * 2008-07-24 2010-02-04 Panasonic Corp Heating device for automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105329129A (en) * 2015-12-09 2016-02-17 重庆春辉科技有限公司 Automotive heating cushion easy to clean

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