JP2021172313A

JP2021172313A - Headrest light emission structure

Info

Publication number: JP2021172313A
Application number: JP2020080676A
Authority: JP
Inventors: 千夏宮下; Chinatsu Miyashita
Original assignee: Inoue MTP KK; Inoac Corp
Current assignee: Inoac Corp
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-11-01
Anticipated expiration: 2040-04-30
Also published as: JP7352513B2; JP2023161040A

Abstract

To effectively decorate a headrest configured to be removable from a seat back by light emission.SOLUTION: In a stay 26, a first opening 32 is formed in an embedded part embedded in a headrest body 12, a second opening 34 is formed at a lower end part extending below from the headrest body 12, and the linear light emission part 20 extends via the first opening 32 so that it goes through the stay 26, and an end part 20a of the linear light emission part 20 faces the second opening 34. An inner bottom part of the stay support part 52 is provided with an LED 56 irradiating light inside the stay support part 52. In the state that the stay 26 is inserted in the stay support part 52, light of the LED 56 is made incident to the end part 20a of the linear light emission part 20 from the second opening 34, so that the linear light emission part 20 emits light.SELECTED DRAWING: Figure 2

Description

この発明は、ヘッドレストの発光構造に関し、更に詳細には、ヘッドレスト本体の表面に露出するよう線状発光部が設けられたヘッドレストの発光構造に関するものである。 The present invention relates to a light emitting structure of a headrest, and more particularly to a light emitting structure of a headrest provided with a linear light emitting portion so as to be exposed on the surface of the headrest main body.

自動車等の車両や船舶、或いは航空機といった各種の乗物のシートや住宅等で利用される椅子の中には、座った人員の背部を支えるシートバックの上部に、頭部や頸部を支えて保護するヘッドレストを備えたものが知られている。このようなヘッドレストは、縫合などにより袋状に形成された軟質な表皮材の内側に弾力性を有する発泡体が充填されたヘッドレスト本体と、当該ヘッドレスト本体に部分的に埋設されて下方に延出するステーとを備えており、当該ヘッドレストのステーを、シートバッグに設けられたステー支持部に挿入することで取り付けられている。 In the seats of various vehicles such as automobiles, ships, and aircraft, and in chairs used in houses, the head and neck are supported and protected on the upper part of the seat back that supports the back of the seated personnel. It is known to have a headrest to do. Such a headrest includes a headrest body in which an elastic foam is filled inside a soft skin material formed in a bag shape by stitching or the like, and a headrest body that is partially embedded in the headrest body and extends downward. It is provided with a stay for the headrest, and is attached by inserting the stay of the headrest into a stay support portion provided on the seat bag.

ところで、近年は、ヘッドレストの加飾性を高めることなどを目的として、ヘッドレストを発光するよう構成したものがある。例えば、ヘッドレストの表皮材の縫合部分に蛍光塗料や蓄光顔料を混入した玉縁などを設けて、ブラックライトの照射や蓄光作用により玉縁を発光させたり、特許文献１のように、シートバック側に設けた光源から導いた光を、ヘッドレストの稜線に沿うように設けた線状発光部の端部から入射させて発光させるものが提案されている。 By the way, in recent years, there is a structure in which the headrest emits light for the purpose of enhancing the decorativeness of the headrest. For example, a bead edge mixed with a fluorescent paint or a phosphorescent pigment is provided on the sutured portion of the skin material of the headrest to make the bead edge emit light by irradiation with black light or a phosphorescent action, or as in Patent Document 1, the seat back side. It has been proposed that the light guided from the light source provided in the headrest is incident on the end of the linear light emitting portion provided along the ridgeline of the headrest to emit light.

特開２００１−１８６９６５号公報Japanese Unexamined Patent Publication No. 2001-186965

しかしながら、蛍光塗料にブラックライトを照射させて発光させる場合には、ヘッドレストの外側にブラックライトを照射する設備が必要になり、またブラックライトの照射範囲しか発光させられない。また蓄光顔料を利用する場合は、その蓄光作用が続く間しか発光させられないことから、何れも発光による加飾性が限定的になる問題がある。その一方で、線状発光部の端部から光を入射させて発光させる場合には、線状発光部に対して正確に光を照射する必要があり、特にヘッドレストを着脱可能に構成した場合には、シートバック側に設けた光源から導いた光を線状発光部の端部に正確に照射することが困難となり、線状発光部の発光による加飾効果が適切に発揮されない問題がある。 However, when the fluorescent paint is irradiated with black light to emit light, equipment for irradiating the outside of the headrest with black light is required, and only the irradiation range of the black light can be emitted. Further, when a phosphorescent pigment is used, it emits light only while the phosphorescent action continues, so that there is a problem that the decorativeness by the light emission is limited in each case. On the other hand, when light is incident from the end of the linear light emitting portion to emit light, it is necessary to accurately irradiate the linear light emitting portion with light, especially when the headrest is detachably configured. Has a problem that it is difficult to accurately irradiate the end portion of the linear light emitting portion with the light guided from the light source provided on the seat back side, and the decoration effect due to the light emission of the linear light emitting portion is not properly exhibited.

すなわち本発明は、シートバックに対して着脱可能に構成されたヘッドレストを発光により効果的に装飾することができるヘッドレストの発光構造を提供することを目的とする。 That is, an object of the present invention is to provide a light emitting structure of a headrest that can effectively decorate a headrest that is detachably attached to a seat back by light emission.

前記課題を克服し、所期の目的を達成するため、本願の請求項１に係る発明は、
表皮材の内側に発泡体が充填されたヘッドレスト本体と、前記ヘッドレスト本体の表面に露出するよう設けられた線状発光部と、前記ヘッドレスト本体から下方に延出するステーと、シートバックに設けられて前記ステーを挿脱可能に挿入して支持する筒状のステー支持部と、を備え、前記シートバックに対して着脱可能に構成されたヘッドレストの発光構造であって、
前記ステーには、前記ヘッドレスト本体に埋設される埋設部分に第１開口部が形成されると共に、当該ヘッドレスト本体から下方に延出した下端部に第２開口部が形成されており、
前記第１開口部を介して前記線状発光部が前記ステーの内部を挿通するよう延在すると共に、当該線状発光部の端部が前記第２開口部に向くよう構成されると共に、
前記ステー支持部の内底部に、当該ステー支持部の内側に光を照射する発光手段が設けられており、
前記ステー支持部に前記ステーを挿入した状態で、前記発光手段の光が前記第２開口部から前記線状発光部の端部に入射することで、当該線状発光部が発光するよう構成されていることを要旨とする。
このように、ステーにおいてヘッドレスト本体に埋設される埋設部分に形成した第１開口部を介してステーの内部を挿通した線状発光部の端部を、ヘッドレスト本体から下方に延出したステーの下端部に形成した第２開口部に向けて、ステー支持部にステーを挿入した状態で、発光手段の光が第２開口部から線状発光部の端部に入射させることができる。すなわち、シートバックに対して着脱可能に構成されたヘッドレストの線状発光部に対して、当該シートバック側に設けた発光体の光を照射することができるから、ヘッドレストをシートバックに対して着脱可能にしながらも、ヘッドレストに設けた線状発光部の発光により効果的に装飾することができる。 In order to overcome the above-mentioned problems and achieve the intended purpose, the invention according to claim 1 of the present application is:
A headrest body in which the inside of the skin material is filled with foam, a linear light emitting portion provided so as to be exposed on the surface of the headrest body, a stay extending downward from the headrest body, and a seat back are provided. It is a light emitting structure of a headrest provided with a tubular stay support portion that inserts and detachably inserts and supports the stay, and is configured to be detachable from the seat back.
In the stay, a first opening is formed in a buried portion embedded in the headrest main body, and a second opening is formed in a lower end portion extending downward from the headrest main body.
The linear light emitting portion extends through the first opening so as to pass through the inside of the stay, and the end portion of the linear light emitting portion is configured to face the second opening.
A light emitting means for irradiating the inside of the stay support portion with light is provided on the inner bottom portion of the stay support portion.
With the stay inserted in the stay support portion, the light of the light emitting means is incident on the end portion of the linear light emitting portion from the second opening, so that the linear light emitting portion emits light. The gist is that.
In this way, the lower end of the stay extending downward from the headrest body is the end of the linear light emitting portion that is inserted through the inside of the stay through the first opening formed in the buried portion of the stay that is embedded in the headrest body. With the stay inserted in the stay support portion toward the second opening formed in the portion, the light of the light emitting means can be incident on the end portion of the linear light emitting portion from the second opening. That is, since the light of the light emitting body provided on the seat back side can be applied to the linear light emitting portion of the headrest that is detachably attached to the seat back, the headrest can be attached to and detached from the seat back. While making it possible, it can be effectively decorated by the light emission of the linear light emitting portion provided on the headrest.

本願の請求項２に係る発明は、
前記ヘッドレスト本体の幅方向に離間して位置するように延出支持部が設けられた前記ステーの幅方向の夫々に前記第１開口部および第２開口部が形成されると共に、前記各延出支持部に対応する前記ステー支持部の内底部に前記発光手段が設けられており、
前記一方の延出支持部に前記線状発光部の一方の端部側が挿通され、前記他方の延出支持部に当該線状発光部の他方の端部が挿通されて、当該線状発光部の両端部から発光手段の光が入射するよう構成されていることを要旨とする。
このように、線状発光部の両端部から発光手段の光が入射するよう構成することで、発光手段の光を線状発光部の全体に導くことができる。このため、線状発光部を長尺に形成した場合でも線状発光部を全体的に発光させることができ、線状発光部の発光による装飾効果を高めることができる。 The invention according to claim 2 of the present application
The first opening and the second opening are formed in each of the width directions of the stay provided with the extension support portions so as to be located apart from each other in the width direction of the headrest main body, and the respective extensions are formed. The light emitting means is provided on the inner bottom portion of the stay support portion corresponding to the support portion.
One end side of the linear light emitting portion is inserted into the one extended support portion, and the other end portion of the linear light emitting portion is inserted through the other extended support portion, so that the linear light emitting portion is inserted. It is a gist that the light of the light emitting means is configured to be incident from both ends of the above.
By configuring the light of the light emitting means to enter from both ends of the linear light emitting portion in this way, the light of the light emitting means can be guided to the entire linear light emitting portion. Therefore, even when the linear light emitting portion is formed to be long, the linear light emitting portion can emit light as a whole, and the decorative effect due to the light emission of the linear light emitting portion can be enhanced.

本願の請求項３に係る発明は、
前記ステーの第２開口部に貫通孔が形成された保持部材が取り付けられて、前記線状発光部の端部が当該貫通孔に臨むよう当該保持部材に保持されていることを要旨とする。
このように、ステーの第２開口部に取り付けた保持部材に線状発光部の端部を保持することで、当該第２開口部に対して線状発光部の端部を一定位置にすることができる。これにより、ヘッドレストの線状発光部に対して、シートバック側に設けた発光体の光を一定の位置関係で照射することができ、発光手段の光を線状発光部の端部に正確に入射させて線状発光部を効果的に発光させることが可能になる。 The invention according to claim 3 of the present application
The gist is that a holding member having a through hole formed in the second opening of the stay is attached, and the end portion of the linear light emitting portion is held by the holding member so as to face the through hole.
In this way, by holding the end of the linear light emitting portion on the holding member attached to the second opening of the stay, the end of the linear light emitting portion is set at a fixed position with respect to the second opening. Can be done. As a result, the light of the light emitting body provided on the seat back side can be irradiated to the linear light emitting portion of the headrest in a fixed positional relationship, and the light of the light emitting means can be accurately directed to the end of the linear light emitting portion. It is possible to make the linear light emitting portion emit light effectively by making it incident.

本願の請求項４に係る発明は、
前記ヘッドレスト本体の表皮材の内側に発泡体からなる被覆部材が設けられて、前記線状発光部を挿通した前記ステーの第１開口部を、当該被覆部材で塞ぐよう構成されていることを要旨とする。
このように、線状発光部を挿通したステーの第１開口部を被覆部材で塞ぐことにより、ヘッドレスト本体を構成する弾性体が第１開口部に侵入するのを防止できる。これにより、第１開口部の開口縁部との接触により弾性体が削られるのを防ぐことができる。 The invention according to claim 4 of the present application
The gist is that a covering member made of foam is provided inside the skin material of the headrest body, and the first opening of the stay through which the linear light emitting portion is inserted is closed by the covering member. And.
By closing the first opening of the stay through which the linear light emitting portion is inserted with the covering member in this way, it is possible to prevent the elastic body constituting the headrest main body from invading the first opening. This makes it possible to prevent the elastic body from being scraped by contact with the opening edge of the first opening.

本発明によれば、ヘッドレストをシートバックに対して着脱可能にしながらも、発光により効果的に装飾することができる。 According to the present invention, while the headrest can be attached to and detached from the seat back, it can be effectively decorated by light emission.

本実施形態に係るヘッドレストの発光構造を備えた車両用シートを、シートバックからヘッドレストを取り外した状態で示す斜視図である。It is a perspective view which shows the vehicle seat provided with the light emitting structure of the headrest which concerns on this embodiment in the state which the headrest is removed from the seat back. 本実施形態に係るヘッドレストの発光構造を備えた車両用シートを、シートバックを透視した状態で示す正面図である。It is a front view which shows the seat for a vehicle provided with the light emitting structure of the headrest which concerns on this embodiment in a state where the seat back is seen through. 図２のＡ−Ａ線断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG. 本実施形態に係るヘッドレストのステー(延出支持部)と、ステー支持部の関係を示す説明図であって、(a)は、ヘッドレストのステーをステー支持部に挿入する状態を示し、(b)は、ヘッドレストのステーをステー支持部に挿入した状態を示す。It is explanatory drawing which shows the relationship between the stay (extension support part) of the headrest and the stay support part which concerns on this embodiment, (a) shows the state which the stay of a headrest is inserted into the stay support part, and (b). ) Indicates a state in which the stay of the headrest is inserted into the stay support portion. 図２のＡ−Ａ線位置におけるヘッドレストの構成部材の分解図であって、表皮材は表裏が裏返った状態で示してある。It is an exploded view of the constituent members of the headrest at the position of line AA of FIG. 本実施形態に係るヘッドレストの製造工程を示す説明図であって、表面が外側に向くように引っ繰り返した袋状の表皮材の挿入孔および被覆部材の貫通孔に、ステー(延出支持部)挿入する状態を示している。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this embodiment, and stay (extending support part) in the insertion hole of the bag-shaped skin material which was repeated so that the surface faces outward, and the through hole of a covering member. Indicates the state of insertion. 本実施形態に係るヘッドレストの製造工程を示す説明図であって、袋状の表皮材の内側において、ステーの第１開口部に線状発光部を挿入する状態を示している。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this embodiment, and shows the state which inserts the linear light emitting part into the 1st opening of a stay inside the bag-shaped skin material. 本実施形態に係るヘッドレストの製造工程を示す説明図であって、第１開口部に挿入した線状発光部をステーに挿通した状態を示している。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this embodiment, and shows the state which inserted the linear light emitting part inserted into the 1st opening through a stay. 本実施形態に係るヘッドレストの製造工程を示す説明図であって、ステー(延出支持部)の第２開口部から引き出した線状発光部に保持部材を取り付ける状態を示している。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this embodiment, and shows the state which attaches the holding member to the linear light emitting part drawn out from the 2nd opening of the stay (extending support part). 本実施形態に係るヘッドレストの製造工程を示す説明図であって、ステーの第１開口部を被覆部材で塞いだ状態を示している。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this embodiment, and shows the state which closed the 1st opening of a stay with a covering member. 本実施形態に係るヘッドレストの製造工程を示す説明図であって、成形型を型閉めして表皮材の内側で弾性体を発泡成形している状態を示す断面図である。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this embodiment, and is the cross-sectional view which shows the state which the mold is closed and the elastic body is foam-molded inside the skin material. 本実施形態に係るヘッドレストの製造工程を示す説明図であって、成形型を型開きした状態で示す断面図である。It is explanatory drawing which shows the manufacturing process of the headrest which concerns on this Embodiment, and is the sectional view which shows in the state which the molding die is opened.

次に、本発明に係るヘッドレストの発光構造につき、好適な実施例を挙げて、添付図面を参照しながら以下説明する。 Next, the light emitting structure of the headrest according to the present invention will be described below with reference to the accompanying drawings with reference to suitable examples.

ヘッドレスト１０は、図１、図２に示すように、表面を形成する袋状の表皮材１４の内側に発泡体からなる弾性体１８が充填されたヘッドレスト本体１２と、ヘッドレスト本体１２の表面に露出するよう設けられた線状発光部２０と、ヘッドレスト本体１２から下方に延出するステー２６とを備えるよう構成されている。表皮材１４は、車両のシートバック５０に使用されるシート表皮に合わせた材質のものが好適に採用され、合成樹脂製、織布、編布または本革等により形成された適宜形状の表皮形成材１６を縫合することにより袋状に形成されている。そして、袋状に形成された表皮材１４の内部に、ウレタンフォーム等の従来公知の発泡体が人員の頭部を支持する弾性体１８として充填されている。なお、本実施形態のヘッドレスト本体１２は、人員の頭部を支える前面部１２ａと、当該前面部１２ａの上部に連なる上面部１２ｂとから側面視において逆Ｌ字状に形成してあるが、これに限られるものではなく、適宜の形態に形成することができる。 As shown in FIGS. 1 and 2, the headrest 10 is exposed to the surface of the headrest main body 12 in which the elastic body 18 made of foam is filled inside the bag-shaped skin material 14 forming the surface, and the surface of the headrest main body 12. It is configured to include a linear light emitting unit 20 provided so as to be provided, and a stay 26 extending downward from the headrest main body 12. As the skin material 14, a material suitable for the seat skin used for the seat back 50 of the vehicle is preferably adopted, and a skin having an appropriate shape formed of synthetic resin, woven cloth, knitted cloth, genuine leather or the like is formed. The material 16 is sewn to form a bag shape. Then, the inside of the skin material 14 formed in the shape of a bag is filled with a conventionally known foam such as urethane foam as an elastic body 18 that supports the head of a person. The headrest main body 12 of the present embodiment is formed in an inverted L shape in a side view from a front surface portion 12a that supports the head of a person and an upper surface portion 12b that is connected to the upper portion of the front surface portion 12a. It is not limited to the above, and can be formed into an appropriate form.

線状発光部２０は、図５に拡大して示すように、径方向に可撓変形可能な光透過性の光伝送体２２と、当該光伝送体２２の外表面を覆う被覆材２４とから構成され、表皮形成材１６の縫合部に縫合されている。具体的に、本実施形態の線状発光部２０は、ヘッドレスト本体１２において前面下部の左右方向に延在する稜線、前面左右の上下方向に延在する稜線、上面左右の前後方向に延在する稜線および背面左右の上下方向に延在する稜線を形成している縫合部に沿って連続した線状をなすよう設けられている(図１、図２参照)。すなわち、線状発光部２０は、ヘッドレスト１０を加飾する所謂玉縁を形成するよう設けられており、光伝送体２２が当該玉縁の芯材を構成している。 As shown in an enlarged view in FIG. 5, the linear light emitting unit 20 is composed of a light transmitting body 22 that is flexible and deformable in the radial direction and a covering material 24 that covers the outer surface of the light transmitting body 22. It is configured and is sewn to the sutured portion of the epidermis forming material 16. Specifically, the linear light emitting unit 20 of the present embodiment extends in the left-right direction of the lower front surface, the ridge line extending in the vertical direction of the front left and right, and the front-rear direction of the upper surface left and right in the headrest main body 12. It is provided so as to form a continuous line along the ridge line and the sutured portion forming the ridge line extending in the vertical direction on the left and right sides of the back surface (see FIGS. 1 and 2). That is, the linear light emitting unit 20 is provided so as to form a so-called bead edge that decorates the headrest 10, and the optical transmitter 22 constitutes the core material of the bead edge.

ここで、光伝送体２２は、長手方向端部から光を入射させることで、外周部から光が出射されるものであり、側面出射型光伝送体等と称されるものである。このような光伝送体２２としては、例えば、ポリウレタン系の透明な合成樹脂材に光散乱剤を含有させたものや、光の屈折率の大きいコア層の外側にコアよりも光の屈折率の小さいクラッド層を配したもの等、従来公知のものを採用することができる。 Here, the optical transmitter 22 emits light from the outer peripheral portion by incident light from the end portion in the longitudinal direction, and is called a side-emission type optical transmitter or the like. Examples of such an optical transmitter 22 include a polyurethane-based transparent synthetic resin material containing a light scattering agent, and an outer core layer having a large refractive index of light having a refractive index of light higher than that of the core. Conventionally known materials such as those having a small clad layer can be adopted.

また、被覆材２４は、織布、編布、合成樹脂フィルムまたは本革等により構成され、光伝送体２２を透過する光が被覆材２４の外側に出射可能な素材または形態で形成されている。具体的に、織布や編布などの繊維素材で被覆材２４を構成する場合は、被覆材２４を構成する繊維の隙間から光伝送体２２を透過する光を外側に出射させるようにすることができる。また、織布や編布などの繊維素材の他、合成樹脂シートや本革などの光を透過しない素材で被覆材２４を構成し、被覆材２４に適宜形状で孔(図示せず)を形成するようにして、当該被覆材２４の孔を介して光伝送体２２を透過する光を外側に出射させるようにすることもできる。 Further, the covering material 24 is made of a woven cloth, a knitted cloth, a synthetic resin film, genuine leather, or the like, and is formed of a material or form capable of emitting light transmitted through the optical transmitter 22 to the outside of the covering material 24. .. Specifically, when the covering material 24 is made of a fiber material such as a woven cloth or a knitted cloth, the light transmitted through the optical transmitter 22 is emitted to the outside through the gaps between the fibers forming the covering material 24. Can be done. Further, in addition to fiber materials such as woven fabrics and knitted fabrics, the covering material 24 is made of a material that does not transmit light such as a synthetic resin sheet or genuine leather, and holes (not shown) are formed in the covering material 24 in an appropriate shape. In this way, the light transmitted through the optical transmitter 22 may be emitted to the outside through the holes of the covering material 24.

ステー２６は、図１に示すように、中空の金属パイプ材を適宜箇所で折り曲げた単一部材であって、ヘッドレスト本体１２に埋設されて支持する埋設部２８と、当該ヘッドレスト本体１２の下方へ延出する延出支持部３０とを備えている。具体的に、本実施形態のステー２６は、ヘッドレスト本体１２に前面部１２ａを支持するように埋設された前面埋設部２８Ａと、前面埋設部２８Ａに連なってヘッドレスト本体１２の上面部１２ｂを支持するよう埋設された上面埋設部２８Ｂと、当該上面埋設部２８Ｂに連なるよう左右に離間して設けられると共にヘッドレスト本体１２の下方へ延出する第１延出支持部３０Ａおよび第２延出支持部３０Ｂとを備えている。なお、ステー２６の形状は、ヘッドレスト本体１２の形状に応じて適宜の形態に形成することができる。 As shown in FIG. 1, the stay 26 is a single member obtained by bending a hollow metal pipe material at an appropriate position, and is a buried portion 28 embedded and supported in the headrest main body 12 and downward of the headrest main body 12. It is provided with an extension support portion 30 that extends. Specifically, the stay 26 of the present embodiment supports the front embedded portion 28A embedded in the headrest main body 12 so as to support the front surface portion 12a, and the upper surface portion 12b of the headrest main body 12 connected to the front embedded portion 28A. The first extension support portion 30A and the second extension support portion 30B which are provided apart from each other on the left and right so as to be connected to the upper surface buried portion 28B and which are embedded in the headrest body 12 and extend downward. And have. The shape of the stay 26 can be formed into an appropriate shape according to the shape of the headrest main body 12.

ここで、第１延出支持部３０Ａおよび第２延出支持部３０Ｂに関する構成は、基本的に共通することから、共通する構成部分について単に延出支持部３０と指称して説明する。なお、図１において左側に位置する延出支持部３０を第１延出支持部３０Ａであり、右側に位置する延出支持部３０を第２延出支持部３０Ｂである。すなわち、ヘッドレスト１０のステー２６は、ヘッドレスト本体１２に埋設部２８が埋設された状態で、表皮材１４に形成された挿通孔１４ａ(図３，図５参照)を挿通した各延出支持部３０がヘッドレスト本体１２の下方へ延出するようになっており、各延出支持部３０において上面埋設部２８Ｂに連なる上端側がヘッドレスト本体１２に埋設されるようになっている。 Here, since the configurations relating to the first extension support portion 30A and the second extension support portion 30B are basically the same, the common configuration portion will be described simply by referring to the extension support portion 30. In FIG. 1, the extension support portion 30 located on the left side is the first extension support portion 30A, and the extension support portion 30 located on the right side is the second extension support portion 30B. That is, the stay 26 of the headrest 10 has each extension support portion 30 through which the insertion hole 14a (see FIGS. 3 and 5) formed in the skin material 14 is inserted in the state where the embedded portion 28 is embedded in the headrest main body 12. Is designed to extend downward from the headrest main body 12, and the upper end side of each extension support portion 30 connected to the upper surface embedded portion 28B is embedded in the headrest main body 12.

また、図３、図５、図７、図８、図１０に示すように、各延出支持部３０は、ヘッドレスト本体１２に埋設される埋設部分に第１開口部３２が形成されると共に、ヘッドレスト本体１２から下方に延出した下端部に第２開口部３４が形成されている。そして、ヘッドレスト本体１２の背面左側の稜線に沿って延在する線状発光部２０が、第１延出支持部３０Ａの第１開口部３２を介して当該第１延出支持部３０Ａの内部に導かれて、その端部が第１延出支持部３０Ａの第２開口部３４に向くと共に、背面右側の稜線に沿って延在する線状発光部２０が、第２延出支持部３０Ｂの第１開口部３２を介して当該第２延出支持部３０Ｂの内部に導かれて、その端部が第２延出支持部３０Ｂの第２開口部３４に向くよう構成されている。 Further, as shown in FIGS. 3, 5, 7, 8, and 10, each extension support portion 30 has a first opening 32 formed in a buried portion embedded in the headrest main body 12. A second opening 34 is formed at the lower end portion extending downward from the headrest main body 12. Then, the linear light emitting portion 20 extending along the ridge line on the left side of the back surface of the headrest main body 12 is inside the first extension support portion 30A via the first opening 32 of the first extension support portion 30A. Guided, the end thereof faces the second opening 34 of the first extension support portion 30A, and the linear light emitting portion 20 extending along the ridgeline on the right side of the back surface is the second extension support portion 30B. It is configured to be guided into the inside of the second extension support portion 30B via the first opening 32, and its end portion faces the second opening 34 of the second extension support portion 30B.

また、図３、図５に示すように、各延出支持部３０には、当該各延出支持部３０を挿通した線状発光部２０の端部２０ａを保持する保持部材３６が第２開口部３４に取り付けられている。この保持部材３６は、各延出支持部３０の延在方向に貫通する貫通孔３８ａが形成された嵌合筒部３８と、当該嵌合筒部３８の端部から径方向外方へ延出する係止部４０とを備えている。すなわち、線状発光部２０の端部２０ａを嵌合筒部３８の貫通孔３８ａに嵌合すると共に、この嵌合筒部３８を各延出支持部３０の第２開口部３４に嵌合することで、線状発光部２０の端部２０ａが一定の姿勢で第２開口部３４に臨むように保持部材３６に保持される。そして、嵌合筒部３８を各延出支持部３０の第２開口部３４に嵌合した際に、第２開口部３４の開口端に係止部４０が係止することで、第２開口部３４の奥行き方向に対して線状発光部２０の端部２０ａを一定位置に位置させ得るようになっている。 Further, as shown in FIGS. 3 and 5, each extension support portion 30 has a second opening of a holding member 36 for holding the end portion 20a of the linear light emitting portion 20 through which each extension support portion 30 is inserted. It is attached to the portion 34. The holding member 36 extends outward in the radial direction from the fitting cylinder portion 38 in which the through hole 38a penetrating in the extending direction of each extension support portion 30 is formed and the end portion of the fitting cylinder portion 38. The locking portion 40 is provided. That is, the end portion 20a of the linear light emitting portion 20 is fitted into the through hole 38a of the fitting cylinder portion 38, and the fitting cylinder portion 38 is fitted into the second opening 34 of each extension support portion 30. As a result, the end portion 20a of the linear light emitting portion 20 is held by the holding member 36 so as to face the second opening 34 in a constant posture. Then, when the fitting cylinder portion 38 is fitted into the second opening 34 of each extension support portion 30, the locking portion 40 is locked to the opening end of the second opening 34, so that the second opening The end portion 20a of the linear light emitting portion 20 can be positioned at a fixed position with respect to the depth direction of the portion 34.

ここで、各延出支持部３０に形成された第１開口部３２は、図１０に示すように、ヘッドレスト本体１２の表皮材１４の内側に設けられた被覆部材４２により塞ぐよう構成されている。この被覆部材４２は、表皮材１４の挿通孔１４ａに略整合する貫通孔４２ａが形成された円筒状に形成されており、当該被覆部材４２における貫通孔４２ａの一方の開口を当該挿通孔１４ａに整合するようにして表皮材１４の裏面(内面)に固定されている。すなわち、各延出支持部３０は、表皮材１４の挿通孔１４ａおよび被覆部材４２の貫通孔４２ａを挿通するようにしてヘッドレスト本体１２の下方へ延出するようになっており、表皮材１４の内側に充填された弾性体１８によりステー２６が所定位置に保持された状態において、各延出支持部３０の第１開口部３２の形成位置に対応付いた被覆部材４２が当該第１開口部３２を塞ぐようになっている。このように、各延出支持部３０に形成された第１開口部３２を被覆部材４２で塞ぐことで、当該第１開口部３２を介して表皮材１４の内側に充填された弾性体１８が各延出支持部３０に進入するのを防止している。 Here, as shown in FIG. 10, the first opening 32 formed in each extension support portion 30 is configured to be closed by a covering member 42 provided inside the skin material 14 of the headrest main body 12. .. The covering member 42 is formed in a cylindrical shape in which a through hole 42a substantially matching the insertion hole 14a of the skin material 14 is formed, and one opening of the through hole 42a in the covering member 42 is formed in the insertion hole 14a. It is fixed to the back surface (inner surface) of the skin material 14 so as to be aligned. That is, each extension support portion 30 extends downward of the headrest main body 12 so as to insert the insertion hole 14a of the skin material 14 and the through hole 42a of the covering member 42, and the skin material 14 In a state where the stay 26 is held in a predetermined position by the elastic body 18 filled inside, the covering member 42 corresponding to the formation position of the first opening 32 of each extension support portion 30 is the first opening 32. It is designed to block. In this way, by closing the first opening 32 formed in each extension support portion 30 with the covering member 42, the elastic body 18 filled inside the skin material 14 through the first opening 32 can be formed. It is prevented from entering each extension support portion 30.

ここで、被覆部材４２を形成する発泡体は、弾性体１８を形成する発泡体より軟質の発泡体により構成されており、被覆部材４２が弾性体１８により押しつぶされるように弾性変形するようになっている。すなわち、第１開口部３２に挿通した線状発光部２０の外周囲に密着するように被覆部材４２が弾性変形することで、線状発光部２０を挿通したもとで第１開口部３２が被覆部材４２で塞がれるようになっている。ここで、被覆部材４２を形成する発泡体の材質は特に限定されるものではないが、この実施形態ではスラブウレタンフォームにより被覆部材４２が形成されている。 Here, the foam forming the covering member 42 is composed of a foam softer than the foam forming the elastic body 18, and the covering member 42 is elastically deformed so as to be crushed by the elastic body 18. ing. That is, the covering member 42 is elastically deformed so as to be in close contact with the outer periphery of the linear light emitting portion 20 inserted through the first opening 32, so that the first opening 32 is inserted through the linear light emitting portion 20. It is designed to be closed by the covering member 42. Here, the material of the foam forming the covering member 42 is not particularly limited, but in this embodiment, the covering member 42 is formed by the slab urethane foam.

ステー支持部５２は、図４に示すように、ステー２６(延出支持部３０)を挿脱可能な挿通孔５２ａを有する筒状に形成されている。そして、シートバック５０の骨格を形成するシートフレーム５０ａの上部に、挿通孔５２ａがシートバック５０の上方に開口するようステー支持部５２が取り付けられている。このステー支持部５２には、挿通孔５２ａの下方開口を塞ぐように蓋体５４が設けられると共に、当該ステー支持部５２の内底部に位置するようＬＥＤ(発光手段)５６が蓋体５４に設けられており、当該ＬＥＤ５６の光がステー支持部５２の内側に照射されるようになっている。この実施形態では、ヘッドレスト本体１２の幅方向に離間して位置するよう設けられたステー２６の各延出支持部３０の夫々に対応するステー支持部５２の内底部にＬＥＤ５６が設けられると共に、各延出支持部３０に線状発光部２０の端部２０ａ側が挿通されており、当該線状発光部２０の両端部からＬＥＤ５６の光が入射し得るように構成されている。すなわち、ステー支持部５２にステー２６(各延出支持部３０)を挿入した状態で、ＬＥＤ５６の光が第２開口部３４から線状発光部２０の端部２０ａに入射することにより、当該線状発光部２０が発光するよう構成されており、当該線状発光部２０の発光によりヘッドレスト１０を加飾するようになっている。 As shown in FIG. 4, the stay support portion 52 is formed in a cylindrical shape having an insertion hole 52a into which the stay 26 (extension support portion 30) can be inserted and removed. A stay support portion 52 is attached to the upper portion of the seat frame 50a forming the skeleton of the seat back 50 so that the insertion hole 52a opens above the seat back 50. The stay support portion 52 is provided with a lid 54 so as to close the lower opening of the insertion hole 52a, and an LED (light emitting means) 56 is provided on the lid 54 so as to be located at the inner bottom portion of the stay support portion 52. The light of the LED 56 is irradiated to the inside of the stay support portion 52. In this embodiment, the LED 56 is provided on the inner bottom portion of the stay support portion 52 corresponding to each of the extension support portions 30 of the stay 26 provided so as to be located apart from each other in the width direction of the headrest main body 12, and each of them is provided. The end portion 20a side of the linear light emitting portion 20 is inserted into the extension support portion 30, and the light of the LED 56 can be incident from both ends of the linear light emitting portion 20. That is, with the stay 26 (each extension support portion 30) inserted into the stay support portion 52, the light of the LED 56 is incident on the end portion 20a of the linear light emitting portion 20 from the second opening 34, whereby the line is concerned. The linear light emitting unit 20 is configured to emit light, and the headrest 10 is decorated by the light emitted from the linear light emitting unit 20.

ここで、ステー支持部５２の内面には、ＬＥＤ５６の光を反射する光反射面５８が設けられている。この光反射面５８は、ステー支持部５２の内面に金属メッキ処理したり、従来公知の光反射シートを貼付することで形成することができる。また、ステー支持部５２を金属で形成する場合は、ステー支持部５２の内面を光反射面５８とすることも可能である。このように、ステー支持部５２の内面に光反射面５８を設けることで、ＬＥＤ５６の光を光反射面で反射させてステー２６(延出支持部３０)に保持した線状発光部２０の端部２０ａに効果的に導くことができる。 Here, a light reflecting surface 58 that reflects the light of the LED 56 is provided on the inner surface of the stay support portion 52. The light reflecting surface 58 can be formed by metal-plating the inner surface of the stay support portion 52 or attaching a conventionally known light reflecting sheet. Further, when the stay support portion 52 is made of metal, the inner surface of the stay support portion 52 can be a light reflecting surface 58. In this way, by providing the light reflecting surface 58 on the inner surface of the stay support portion 52, the light of the LED 56 is reflected by the light reflecting surface and held by the stay 26 (extended support portion 30) at the end of the linear light emitting portion 20. It can be effectively guided to the portion 20a.

また、ステー支持部５２には、図４に示すように、当該ステー支持部５２にステー２６(延出支持部３０)が挿入されている挿入状態を検出可能な検出センサ６０が設けられている。この検出センサ６０としては、近接センサのような非接触式のセンサや、マイクロスイッチのような接触式のセンサなど従来公知の各種センサを採用することができる。そして、検出センサ６０およびＬＥＤ５６の夫々が制御装置７０(図２参照)に配線接続されており、ステー支持部５２の挿通孔５２ａに挿入されたステー２６(延出支持部３０)を検出する挿入状態の場合に、制御装置７０がＬＥＤ５６を発光可能に構成される。ここで、制御装置７０は、検出センサ６０が挿入状態を検出する間、ＬＥＤ５６を発光させるようにしてもよく、照度センサを別途設けて、照度センサが検出する明るさに応じてＬＥＤ５６を発光させるようにしてもよい。なお、照度センサを設ける場合に、照度センサの設置位置は、ヘッドレスト１０の配置位置周囲(例えば車内)の明るさを検出可能な位置であればよく、例えばヘッドレスト１０やシートバック５０などの背面、或いは車内ルーフなど適宜位置に設けることができる。なお、ＬＥＤ５６や制御装置７０、検出センサ６０等の電気部品に対する電源は、車両が備える電源装置(バッテリー)から供給するよう構成してもよく、当該電気部品に対する電源供給用の電源装置を別途備えるよう構成してもよい。 Further, as shown in FIG. 4, the stay support portion 52 is provided with a detection sensor 60 capable of detecting an inserted state in which the stay 26 (extended support portion 30) is inserted into the stay support portion 52. .. As the detection sensor 60, various conventionally known sensors such as a non-contact type sensor such as a proximity sensor and a contact type sensor such as a micro switch can be adopted. Then, each of the detection sensor 60 and the LED 56 is connected to the control device 70 (see FIG. 2) by wiring, and the stay 26 (extended support portion 30) inserted into the insertion hole 52a of the stay support portion 52 is detected. In the state, the control device 70 is configured to be capable of emitting the LED 56. Here, the control device 70 may make the LED 56 emit light while the detection sensor 60 detects the insertion state, or provide an illuminance sensor separately to make the LED 56 emit light according to the brightness detected by the illuminance sensor. You may do so. When the illuminance sensor is provided, the illuminance sensor may be installed at a position where the brightness around the arrangement position of the headrest 10 (for example, inside the vehicle) can be detected, for example, the back surface of the headrest 10 or the seat back 50. Alternatively, it can be provided at an appropriate position such as an in-vehicle roof. The power supply for the electric components such as the LED 56, the control device 70, and the detection sensor 60 may be supplied from the power supply device (battery) provided in the vehicle, and a power supply device for supplying power to the electric components is separately provided. It may be configured as follows.

次に、前述したヘッドレスト１０の製造方法について説明する。織布、編布、合成樹脂フィルムまたは本革等により形成した被覆材２４を二つ折りにし、二つ折りした折り目の内側に光伝送体２２を配置して、光伝送体２２の外表面を被覆材２４で覆うようにして線状発光部２０を形成する。そして、表面を向き合わせるようにした表皮形成材１６の縁部(縫合部位)の間に線状発光部２０を位置付け、この状態で当該表皮形成材１６の縁部および被覆材２４を合わせて縫合することで、表裏が裏返った状態となるように袋状の表皮材１４を形成する(図５参照)。このとき、線状発光部２０は、その長手方向の中間位置を表皮形成材１６に縫合するようになっており、当該線状発光部２０の両端側に表皮形成材１６に縫合されない余剰部２０ｂが形成されるようになっている。 Next, the method for manufacturing the headrest 10 described above will be described. The covering material 24 formed of woven cloth, knitted cloth, synthetic resin film, genuine leather, etc. is folded in half, the optical transmitter 22 is placed inside the folded fold, and the outer surface of the optical transmitter 22 is covered. The linear light emitting portion 20 is formed so as to be covered with 24. Then, the linear light emitting portion 20 is positioned between the edges (sewn parts) of the skin forming material 16 so that the surfaces face each other, and in this state, the edges and the covering material 24 of the skin forming material 16 are put together and sutured. By doing so, the bag-shaped skin material 14 is formed so that the front and back sides are turned inside out (see FIG. 5). At this time, the linear light emitting portion 20 is designed to sew an intermediate position in the longitudinal direction to the epidermis forming material 16, and the surplus portion 20b that is not sewn to the epidermis forming material 16 on both ends of the linear light emitting portion 20. Is to be formed.

ここで、ヘッドレスト本体１２において前面下部の左右方向に延在する稜線、前面左右の上下方向に延在する稜線、上面左右の前後方向に延在する稜線および背面左右の上下方向に延在する稜線を形成する各表皮形成材１６の端縁部に、線状発光部２０を縫合し、背面左右の下端部側から線状発光部２０の余剰部２０ｂが延出するようになっている。また、表皮形成材１６は、裏返った状態の表皮材１４を表面が外側に向くように引っ繰り返すための引っ繰り返し用の開口１４ｂを形成するように縫合される。 Here, in the headrest main body 12, the ridge line extending in the left-right direction of the lower front surface, the ridge line extending in the vertical direction of the front left and right, the ridge line extending in the front-rear direction of the upper surface left and right, and the ridge line extending in the vertical direction of the back left and right. The linear light emitting portion 20 is sewn to the edge portion of each skin forming material 16 forming the above, and the surplus portion 20b of the linear light emitting portion 20 extends from the lower end side on the left and right sides of the back surface. Further, the skin forming material 16 is sewn so as to form an opening 14b for turning over the skin material 14 in an inverted state so that the surface faces outward.

そして、図５に示すように、表皮材１４に形成したステー２６(延出支持部３０)の挿通孔１４ａの形成位置に、発泡体を円筒状に形成した被覆部材４２の貫通孔４２ａの一方の開口を整合するようにして、当該被覆部材４２を接着剤等により表皮材１４の裏面(内面)に固定する。これにより、表皮材１４におけるステー２６の挿通孔１４ａに連通するよう被覆部材４２が表皮形成材１６の裏面に取り付けられる。ここで、被覆部材４２を形成する発泡体は、弾性体１８を形成する発泡体より軟質の発泡体で形成してある。そして、裏返し状態の表皮材１４の表面が外側に露出するように引っ繰り返し用の開口１４ｂを介して表皮材１４を引っ繰り返し、表面が外側に向いた袋状の表皮材１４の内側に、線状発光部２０の余剰部２０ｂが位置するようにする。この状態で、ステー２６(延出支持部３０)の端部を、一方の表皮材１４の挿通孔１４ａおよび被覆部材４２の貫通孔４２ａに差し込んで表皮材１４の内側に臨ませる。次いで、表皮材１４の内側に臨ませたステー２６(延出支持部３０)の端部を、他方の表皮材１４の挿通孔１４ａおよび被覆部材４２の貫通孔４２ａに差し込んで表皮材１４の外側に臨ませ、表皮材１４の外側に突出させた端部を引き出すようにステー２６を表皮材１４に対して移動することで、表皮材１４の内側にステー２６を順に送り込むようにする、これにより、表面が外側に向いた袋状の表皮材１４の内側にステー２６の埋設部２８を位置させると共に、被覆部材４２の貫通孔４２ａおよび表皮材１４の挿通孔１４ａを挿通した各延出支持部３０を、表皮材１４の外側に延出させる(図７参照)。 Then, as shown in FIG. 5, one of the through holes 42a of the covering member 42 in which the foam is formed in a cylindrical shape is formed at the insertion hole 14a of the stay 26 (extending support portion 30) formed in the skin material 14. The covering member 42 is fixed to the back surface (inner surface) of the skin material 14 with an adhesive or the like so that the openings of the above are aligned. As a result, the covering member 42 is attached to the back surface of the skin forming material 16 so as to communicate with the insertion hole 14a of the stay 26 in the skin material 14. Here, the foam forming the covering member 42 is formed of a foam softer than the foam forming the elastic body 18. Then, the skin material 14 is turned over through the opening 14b for turning so that the surface of the skin material 14 in the inverted state is exposed to the outside, and a line is formed inside the bag-shaped skin material 14 whose surface faces outward. The surplus portion 20b of the light emitting portion 20 is located. In this state, the end portion of the stay 26 (extending support portion 30) is inserted into the insertion hole 14a of one skin material 14 and the through hole 42a of the covering member 42 so as to face the inside of the skin material 14. Next, the end of the stay 26 (extending support portion 30) facing the inside of the skin material 14 is inserted into the insertion hole 14a of the other skin material 14 and the through hole 42a of the covering member 42 to the outside of the skin material 14. By moving the stay 26 with respect to the skin material 14 so as to pull out the end portion protruding to the outside of the skin material 14, the stay 26 is sequentially sent to the inside of the skin material 14. The embedded portion 28 of the stay 26 is positioned inside the bag-shaped skin material 14 whose surface faces outward, and each extension support portion through which the through hole 42a of the covering member 42 and the insertion hole 14a of the skin material 14 are inserted. 30 is extended to the outside of the skin material 14 (see FIG. 7).

そして、図７に示すように、表皮材１４の内側において各延出支持部３０の第１開口部３２が被覆部材４２で塞がれない位置に位置付くようにステー２６(各延出支持部３０)を位置させる。そして、表皮材１４の縫合部から延出する線状発光部２０の余剰部２０ｂの先端側の端部２０ａを、対応する第１開口部３２に差し込んで各延出支持部３０の内部に線状発光部２０を挿通して、当該各延出支持部３０の下端部に形成した第２開口部３４に線状発光部２０の端部２０ａが向くようにする(図８参照)。この状態で、第２開口部３４から引き出した線状発光部２０の端部２０ａを、保持部材３６における嵌合筒部３８の貫通孔３８ａに嵌合して固定すると共に、当該嵌合筒部３８を第２開口部３４に嵌合して、線状発光部２０の端部２０ａを第２開口部３４に臨むように保持する(図９参照)。 Then, as shown in FIG. 7, the stay 26 (each extension support portion) is positioned inside the skin material 14 so that the first opening 32 of each extension support portion 30 is not blocked by the covering member 42. 30) is positioned. Then, the end portion 20a on the tip end side of the surplus portion 20b of the linear light emitting portion 20 extending from the sutured portion of the skin material 14 is inserted into the corresponding first opening 32, and a line is formed inside each extension support portion 30. The linear light emitting portion 20 is inserted so that the end portion 20a of the linear light emitting portion 20 faces the second opening 34 formed at the lower end portion of each of the extension support portions 30 (see FIG. 8). In this state, the end portion 20a of the linear light emitting portion 20 pulled out from the second opening 34 is fitted and fixed in the through hole 38a of the fitting cylinder portion 38 in the holding member 36, and the fitting cylinder portion is fixed. 38 is fitted into the second opening 34, and the end portion 20a of the linear light emitting portion 20 is held so as to face the second opening 34 (see FIG. 9).

更に、図１０に示すように、ステー２６(各延出支持部３０)を表皮材１４の外側に引き出して第１開口部３２を被覆部材４２で塞ぐようにした後に、この弾性体１８を形成する前の表皮材１４を所定の成形型１００に収容して、表皮材１４の内側に注入した発泡原料を発泡することにより弾性体１８を形成する。これにより、ステー２６(各延出支持部３０)の内部に線状発光部２０が挿通する状態で当該線状発光部３０が表面に露出したヘッドレスト本体１２が形成される。ここで、表皮材１４の内側への発泡原料の注入は、引っ繰り返し用の開口１４ｂを利用してもよい。なお、先述した線状発光部２０を保持部材３６で保持する工程は、弾性体１８の形成後に行うようにしてもよい。 Further, as shown in FIG. 10, the stay 26 (each extension support portion 30) is pulled out to the outside of the skin material 14 so that the first opening 32 is closed by the covering member 42, and then the elastic body 18 is formed. The elastic body 18 is formed by accommodating the skin material 14 before the treatment in a predetermined molding die 100 and foaming the foamed raw material injected into the skin material 14. As a result, the headrest main body 12 in which the linear light emitting portion 30 is exposed on the surface is formed in a state where the linear light emitting portion 20 is inserted into the stay 26 (each extension support portion 30). Here, the foaming raw material may be injected into the inside of the skin material 14 by using the opening 14b for repetitive use. The step of holding the linear light emitting portion 20 by the holding member 36 may be performed after the elastic body 18 is formed.

ここで、ヘッドレスト本体１２の弾性体１８を成形する成形型８０は、弾性体１８を成形可能な構成であれば特に限定されるものではないが、その一例を説明する。本実施形態の成形型８０は、下型をなす第１型８２と、第１型８２の一方の縁部にヒンジ連結されて上型をなす第２型８４と、第１型８２の他方の縁部にヒンジ連結されて上型をなす第３型８６とを備え。当該第１〜第３型８２,８４,８６を型締めすることで、ヘッドレスト本体１２の外径に合致するキャビティが形成されるようになっている。また第２型８４および第３型８６には、ステー２６の各延出支持部３０を支持する溝状のステー支持溝８４ｂ,８６ｂが設けられている。この成形型８０では、先ず、第１〜第３型８２,８４,８６を型開き状態として、ステー２６の一部(埋設部２８)を中に挿入した袋状の表皮材１４から延出したステー２６(各延出支持部３０)を第３型８６のステー支持溝８６ｂに支持させる。そして、第１型８２および第３型８６を型閉め後、第２型を型締めし、ステー２６(各延出支持部３０)を第２型８４のステー支持溝８６ｂに支持させて、袋状の表皮材１４の内側に発泡原料を注入して、発泡原料の発泡により弾性体１８(ヘッドレスト本体１２)を成形する(図１１参照)。そして、所要の時間の経過後に、第１〜第３型８２,８４,８６を型開き状態として、ステー２６を第３型８６のステー支持溝８６ｂから離脱させることで、ヘッドレスト１０が取り出される(図１２参照)。 Here, the molding die 80 for molding the elastic body 18 of the headrest main body 12 is not particularly limited as long as it has a structure capable of molding the elastic body 18, but an example thereof will be described. The molding mold 80 of the present embodiment includes a first mold 82 forming a lower mold, a second mold 84 hinged to one edge of the first mold 82 to form an upper mold, and the other of the first mold 82. Equipped with a third type 86 that is hinged to the edge to form an upper mold. By molding the first to third molds 82, 84, 86, a cavity matching the outer diameter of the headrest main body 12 is formed. Further, the second type 84 and the third type 86 are provided with groove-shaped stay support grooves 84b and 86b for supporting each extension support portion 30 of the stay 26. In this molding die 80, first, the first to third molds 82, 84, 86 were opened, and a part of the stay 26 (embedded portion 28) was extended from the bag-shaped skin material 14 inserted therein. The stay 26 (each extension support portion 30) is supported by the stay support groove 86b of the third type 86. Then, after the first mold 82 and the third mold 86 are closed, the second mold is molded, and the stay 26 (each extension support portion 30) is supported by the stay support groove 86b of the second mold 84 to form a bag. The foaming raw material is injected into the inside of the shaped skin material 14, and the elastic body 18 (headrest main body 12) is molded by foaming the foaming raw material (see FIG. 11). Then, after the lapse of the required time, the headrest 10 is taken out by separating the stay 26 from the stay support groove 86b of the third type 86 with the first to third types 82,84,86 in the mold open state (the headrest 10 is taken out). (See FIG. 12).

本実施形態のヘッドレスト１０は、ヘッドレスト本体１２に埋設されるステー２６(各延出支持部３０)の埋設部分に第１開口部３２が形成されており、当該第１開口部３２を介してステー２６(各延出支持部３０)の内部を挿通させた線状発光部２０の端部２０ａが、ヘッドレスト本体１２から下方に延出したステー２６(各延出支持部３０)の下端部で開口する第２開口部３４に向くように構成されている。この一方で、シートバック５０に設けたステー支持部５２には、当該ステー支持部５２の内側に光を照射するＬＥＤ５６が内底部に設けられている。このように、ステー２６(各延出支持部３０)の第１開口部３２を介してステー２６の内部を挿通した線状発光部２０の端部を、ステー２６(各延出支持部３０)の第２開口部３４に向けることで、ステー支持部５２にステー２６を挿入した状態において、ＬＥＤ５６の光が第２開口部３４から線状発光部２０の端部に入射させることができる。すなわち、シートバック５０に対して着脱可能に構成されたヘッドレスト１０の線状発光部２０に対して、当該シートバック５０側に設けたＬＥＤ５６の光を照射することが可能になるから、ヘッドレスト１０をシートバック５０に対して着脱可能にしながらも、ヘッドレスト１０に設けた線状発光部２０の発光により効果的に装飾することができる。 In the headrest 10 of the present embodiment, a first opening 32 is formed in a buried portion of a stay 26 (each extension support portion 30) embedded in the headrest main body 12, and the stay is formed through the first opening 32. The end portion 20a of the linear light emitting portion 20 inserted through the inside of the 26 (each extension support portion 30) opens at the lower end portion of the stay 26 (each extension support portion 30) extending downward from the headrest main body 12. It is configured to face the second opening 34. On the other hand, the stay support portion 52 provided on the seat back 50 is provided with an LED 56 on the inner bottom portion that irradiates the inside of the stay support portion 52 with light. In this way, the end of the linear light emitting portion 20 inserted through the inside of the stay 26 through the first opening 32 of the stay 26 (each extension support portion 30) is inserted into the stay 26 (each extension support portion 30). By directing the light toward the second opening 34, the light of the LED 56 can be incident on the end of the linear light emitting portion 20 from the second opening 34 in a state where the stay 26 is inserted into the stay support portion 52. That is, since it is possible to irradiate the linear light emitting portion 20 of the headrest 10 which is detachably attached to the seat back 50 with the light of the LED 56 provided on the seat back 50 side, the headrest 10 can be used. Although it can be attached to and detached from the seat back 50, it can be effectively decorated by the light emitted from the linear light emitting portion 20 provided on the headrest 10.

しかも、ヘッドレスト本体１２の幅方向に離間して位置するように第１延出支持部３０Ａおよび第２延出支持部３０Ｂが設けられたステー２６の幅方向の夫々に第１開口部３２および第２開口部３４を形成して、各延出支持部３０に対応するステー支持部５２の内底部にＬＥＤ５６を設けるよう構成し、線状発光部２０の両端部からＬＥＤ５６の光が入射するようになっている。すなわち、線状発光部２０の両端部からＬＥＤ５６の光が入射するよう構成することで、ＬＥＤ５６の光を線状発光部２０の全体に導くことができる。このため、線状発光部２０を長尺に形成しつつ線状発光部２０を全体的に発光させることができ、線状発光部２０の発光による装飾効果を高めることができる。 Moreover, the first opening 32 and the first opening 32 and the second in the width direction of the stay 26 provided with the first extension support portion 30A and the second extension support portion 30B so as to be located apart from each other in the width direction of the headrest main body 12. The two openings 34 are formed so that the LED 56 is provided on the inner bottom portion of the stay support portion 52 corresponding to each extension support portion 30, so that the light of the LED 56 is incident from both ends of the linear light emitting portion 20. It has become. That is, by configuring the light of the LED 56 to enter from both ends of the linear light emitting unit 20, the light of the LED 56 can be guided to the entire linear light emitting unit 20. Therefore, the linear light emitting unit 20 can be made to emit light as a whole while the linear light emitting unit 20 is formed to be long, and the decorative effect of the light emission of the linear light emitting unit 20 can be enhanced.

更に、各延出支持部３０に挿通した線状発光部２０の余剰部２０ｂの端部２０ａは、各延出支持部３０の第２開口部３４に取り付けた保持部材３６(嵌合筒部３８)の貫通孔３８ａに挿通して保持してあるから、当該第２開口部３４に対して線状発光部２０の端部２０ａを一定位置にすることができる。従って、ヘッドレスト１０の線状発光部２０に対して、シートバック５０側に設けたＬＥＤ５６を一定の位置関係で対向位置させて、当該ＬＥＤ５６の光を一定の位置関係で照射することができる。これにより、ＬＥＤ５６の光を線状発光部２０の端部２０ａに正確に入射させて線状発光部２０を効果的に発光させることが可能になる。更に、第２開口部３４の開口端に保持部材３６の係止部４０が係止することで、第２開口部３４の奥行き方向に対して線状発光部２０の端部２０ａを一定位置に位置させることができるから、ＬＥＤ５６の光を線状発光部２０の端部２０ａにより正確に入射させて線状発光部２０を効果的に発光させることが可能になる。 Further, the end portion 20a of the surplus portion 20b of the linear light emitting portion 20 inserted into each extension support portion 30 is a holding member 36 (fitting cylinder portion 38) attached to the second opening 34 of each extension support portion 30. ) Is inserted through the through hole 38a and held, so that the end portion 20a of the linear light emitting portion 20 can be set at a fixed position with respect to the second opening 34. Therefore, the LED 56 provided on the seat back 50 side can be opposed to the linear light emitting portion 20 of the headrest 10 in a constant positional relationship, and the light of the LED 56 can be irradiated in a constant positional relationship. As a result, the light of the LED 56 can be accurately incident on the end portion 20a of the linear light emitting unit 20 so that the linear light emitting unit 20 can effectively emit light. Further, by locking the locking portion 40 of the holding member 36 to the opening end of the second opening 34, the end portion 20a of the linear light emitting portion 20 is set at a fixed position with respect to the depth direction of the second opening 34. Since it can be positioned, the light of the LED 56 can be accurately incident on the end portion 20a of the linear light emitting unit 20 so that the linear light emitting unit 20 can be effectively emitted.

また、線状発光部２０を挿通したステー２６(各延出支持部３０)の第１開口部３２を、ヘッドレスト本体１２の表皮材１４の内側に設けた被覆部材４２で塞ぐように構成してある。このため、ヘッドレスト本体１２を構成する弾性体１８が第１開口部３２に侵入するのを防止できる。これにより、第１開口部３２の開口縁部との接触により弾性体１８が削られるのを防ぐことができ、ステー２６の内側に入った弾性体１８の削り屑による異音等の発生を効果的に防ぐことができる。また、弾性体１８を所定の形状に保つことができるから、ヘッドレスト本体１２の性能を維持することができる。 Further, the first opening 32 of the stay 26 (each extension support portion 30) through which the linear light emitting portion 20 is inserted is configured to be closed by a covering member 42 provided inside the skin material 14 of the headrest main body 12. be. Therefore, it is possible to prevent the elastic body 18 constituting the headrest main body 12 from invading the first opening 32. As a result, it is possible to prevent the elastic body 18 from being scraped by contact with the opening edge of the first opening 32, and it is effective to generate abnormal noise or the like due to the shavings of the elastic body 18 that has entered the inside of the stay 26. Can be prevented. Further, since the elastic body 18 can be kept in a predetermined shape, the performance of the headrest main body 12 can be maintained.

また、ステー支持部５２にステー２６(延出支持部３０)が挿入されている挿入状態を検出可能な検出センサ６０を設けるようにし、ステー支持部５２の挿通孔５２ａに挿入されたステー２６(延出支持部３０)を検出する挿入状態の場合に、制御装置７０がＬＥＤ５６を発光可能に構成してある。従って、ヘッドレスト１０を取り外した状態でＬＥＤ５６が無駄に発光しないようにすることができる。 Further, a detection sensor 60 capable of detecting the insertion state in which the stay 26 (extension support portion 30) is inserted is provided in the stay support portion 52, and the stay 26 inserted into the insertion hole 52a of the stay support portion 52 ( The control device 70 is configured to be capable of emitting light of the LED 56 in the inserted state of detecting the extension support portion 30). Therefore, it is possible to prevent the LED 56 from emitting light unnecessarily when the headrest 10 is removed.

ここで、前記ヘッドレスト１０は、表皮材１４の内側において、ヘッドレスト本体１２に埋設される埋設部分に形成したステー２６(各延出支持部３０)の第１開口部３２を、被覆部材４２で塞がれない位置に位置付けた状態で、線状発光部２０における余剰部２０ｂの端部２０ａを第１開口部３２に差し込み、ステー２６(各延出支持部３０)を表皮材１４の外側に引き出して第１開口部３２を被覆部材４２で塞ぐようにした後に、当該表皮材１４の内側で発泡原料を発泡させて弾性体１８を形成することで形成される。このように、ステー２６の第１開口部３２を被覆部材４２で塞ぐようにした後に、表皮材１４の内側で発泡原料を発泡させて弾性体１８を形成することで、弾性体１８の形成時に発泡原料が第１開口部３２からステー２６の内部に漏出するのを防止できるから、適切な形状に弾性体１８を正確に成形することができる。また、発泡原料の発泡圧により、ステー２６の第１開口部３２を挿通している線状発光部２０に被覆部材４２が押し付けられることで、第１開口部３２に挿通した線状発光部２０の周りの隙間を被覆部材４２で効果的に塞ぐことができ、線状発光部２０の周りの隙間からの発泡原料の漏出も効果的に防ぐことができる。 Here, the headrest 10 closes the first opening 32 of the stay 26 (each extension support portion 30) formed in the buried portion embedded in the headrest main body 12 inside the skin material 14 with the covering member 42. The end portion 20a of the surplus portion 20b of the linear light emitting portion 20 is inserted into the first opening 32, and the stay 26 (each extension support portion 30) is pulled out to the outside of the skin material 14 in a state where the linear light emitting portion 20 is positioned so as not to come off. The first opening 32 is closed with the covering member 42, and then the foaming raw material is foamed inside the skin material 14 to form the elastic body 18. In this way, after the first opening 32 of the stay 26 is closed by the covering member 42, the foaming raw material is foamed inside the skin material 14 to form the elastic body 18, so that the elastic body 18 is formed at the time of forming the elastic body 18. Since it is possible to prevent the foamed raw material from leaking from the first opening 32 into the stay 26, the elastic body 18 can be accurately molded into an appropriate shape. Further, the coating member 42 is pressed against the linear light emitting portion 20 through which the first opening 32 of the stay 26 is inserted by the foaming pressure of the foaming raw material, so that the linear light emitting portion 20 inserted through the first opening 32 is pressed. The gap around the head can be effectively closed by the covering member 42, and the leakage of the foamed raw material from the gap around the linear light emitting portion 20 can be effectively prevented.

また被覆部材４２を形成する発泡体は、弾性体１８を形成する発泡体より軟質の発泡体で形成するようにしたことで、弾性体１８により被覆部材４２を第１開口部３２側に押し付けるように弾性変形させることができる。これにより、被覆部材４２を第１開口部３２の開口縁部や線状発光部２０に対し、より密着させるようにして隙間を塞ぐことができるから、発泡原料の漏出をより効果的に防止できる。 Further, the foam forming the covering member 42 is formed of a foam softer than the foam forming the elastic body 18, so that the covering member 42 is pressed against the first opening 32 side by the elastic body 18. Can be elastically deformed. As a result, the covering member 42 can be brought into close contact with the opening edge portion of the first opening 32 and the linear light emitting portion 20 to close the gap, so that leakage of the foamed raw material can be prevented more effectively. ..

(変更例)
本発明に係るヘッドレストの発光構造は、前述した構成に限定されるものではなく、例えば以下のように変更することができる。
(１) 実施形態のヘッドレスト１０は、ステー２６においてヘッドレスト本体１２の幅方向に離間して位置する第１延出支持部３０Ａおよび第２延出支持部３０Ｂの夫々に線状発光部２０を挿通するよう構成したが、何れか一方の延出支持部３０Ａ,３０Ｂにのみ第１開口部３２および第２開口部３４を形成して線状発光部２０を挿通するよう構成してもよい。
(２) 実施形態のヘッドレスト１０は、ヘッドレスト本体１２の表面に露出する１本の線状発光部２０を設けて、当該線状発光部２０の各端部２０ａを対応する第１延出支持部３０Ａおよび第２延出支持部３０Ｂに挿通するよう構成したが、複数(例えば２本)の線状発光部２０を設けるようにして、延出支持部３０Ａ,３０Ｂ毎に異なる線状発光部２０の端部２０ａを挿通するようにしてもよい。
(３) また、１つの延出支持部３０Ａ,３０Ｂに複数の線状発光部２０の端部２０ａを挿通して、１つステー支持部５２の内底部に設けたＬＥＤ５６の光が複数の線状発光部２０の端部２０ａに入射するよう構成してもよい。
(４) 実施形態では、延出支持部３０に挿通した線状発光部２０の端部２０ａを保持部材３６で保持するよう構成したが、当該保持部材３６を省略することも可能である。例えば線状発光部２０の端部２０ａを延出支持部３０の内周面に接着等することで保持部材３６を省略できる。
(５) 実施形態では、被覆部材４２を円筒状に形成したが、延出支持部３０の外形形状に応じて角筒状など任意の形態に形成することができる。
(６) 実施形態では、被覆部材４２を形成する発泡体を、ヘッドレスト本体１２の弾性体１８を形成する発泡体より軟質の発泡体で形成するようにしたが、被覆部材４２と弾性体１８とを同じ発泡体で形成するようにしてもよく、ヘッドレスト本体１２の弾性体１８を、被覆部材４２を形成する発泡体を形成する発泡体より軟質の発泡体で形成するようにしてもよい。この場合でも、第１開口部３２を被覆部材４２で塞ぐことで、第１開口部３２を介して延出支持部３０内へ発泡原料が漏出するのを防止できる。 (Change example)
The light emitting structure of the headrest according to the present invention is not limited to the above-mentioned configuration, and can be changed as follows, for example.
(1) In the headrest 10 of the embodiment, the linear light emitting portion 20 is inserted into each of the first extension support portion 30A and the second extension support portion 30B located apart from each other in the width direction of the headrest main body 12 in the stay 26. However, the first opening 32 and the second opening 34 may be formed only in one of the extension support portions 30A and 30B so that the linear light emitting portion 20 can be inserted therethrough.
(2) The headrest 10 of the embodiment is provided with one linear light emitting portion 20 exposed on the surface of the headrest main body 12, and the first extending support portion corresponding to each end portion 20a of the linear light emitting portion 20 is provided. Although it is configured to be inserted through the 30A and the second extension support portion 30B, different linear light emitting portions 20 are provided for each of the extension support portions 30A and 30B by providing a plurality of (for example, two) linear light emitting portions 20. The end portion 20a of the headrest may be inserted.
(3) Further, the light of the LED 56 provided on the inner bottom portion of one stay support portion 52 by inserting the end portions 20a of the plurality of linear light emitting portions 20 into one extension support portion 30A and 30B is a plurality of lines. It may be configured to be incident on the end portion 20a of the light emitting portion 20.
(4) In the embodiment, the end portion 20a of the linear light emitting portion 20 inserted through the extension support portion 30 is held by the holding member 36, but the holding member 36 can be omitted. For example, the holding member 36 can be omitted by adhering the end portion 20a of the linear light emitting portion 20 to the inner peripheral surface of the extension support portion 30.
(5) In the embodiment, the covering member 42 is formed in a cylindrical shape, but it can be formed in any shape such as a square cylinder depending on the outer shape of the extension support portion 30.
(6) In the embodiment, the foam forming the covering member 42 is formed of a foam softer than the foam forming the elastic body 18 of the headrest main body 12, but the covering member 42 and the elastic body 18 May be formed of the same foam, or the elastic body 18 of the headrest body 12 may be formed of a foam softer than the foam forming the foam forming the covering member 42. Even in this case, by closing the first opening 32 with the covering member 42, it is possible to prevent the foamed raw material from leaking into the extension support portion 30 through the first opening 32.

１２ヘッドレスト本体，１４表皮材，１８弾性体，２０線状発光部
２０ａ端部，２６ステー，３２第１開口部，３４第２開口部
３６保持部材，３８ａ貫通孔，４２被覆部材，５２ステー支持部
５６ＬＥＤ(発光手段) 12 Headrest body, 14 skin material, 18 elastic body, 20 linear light emitting part 20a end, 26 stay, 32 first opening, 34 second opening 36 holding member, 38a through hole, 42 covering member, 52 stay support Part 56 LED (light emitting means)

Claims

A headrest body in which the inside of the skin material is filled with foam, a linear light emitting portion provided so as to be exposed on the surface of the headrest body, a stay extending downward from the headrest body, and a seat back are provided. It is a light emitting structure of a headrest provided with a tubular stay support portion that inserts and detachably inserts and supports the stay, and is configured to be detachable from the seat back.
In the stay, a first opening is formed in a buried portion embedded in the headrest main body, and a second opening is formed in a lower end portion extending downward from the headrest main body.
The linear light emitting portion extends through the first opening so as to pass through the inside of the stay, and the end portion of the linear light emitting portion is configured to face the second opening.
A light emitting means for irradiating the inside of the stay support portion with light is provided on the inner bottom portion of the stay support portion.
With the stay inserted in the stay support portion, the light of the light emitting means is incident on the end portion of the linear light emitting portion from the second opening, so that the linear light emitting portion emits light. The light emitting structure of the headrest, which is characterized by being

The first opening and the second opening are formed in each of the width directions of the stay provided with the extension support portions so as to be located apart from each other in the width direction of the headrest main body, and the respective extensions are formed. The light emitting means is provided on the inner bottom portion of the stay support portion corresponding to the support portion.
One end side of the linear light emitting portion is inserted into the one extended support portion, and the other end portion of the linear light emitting portion is inserted into the other extended support portion, so that the linear light emitting portion is inserted. The light emitting structure of the headrest according to claim 1, wherein the light of the light emitting means is incident from both ends of the headrest.

A claim characterized in that a holding member having a through hole formed in the second opening of the stay is attached, and the end portion of the linear light emitting portion is held by the holding member so as to face the through hole. Item 2. The light emitting structure of the headrest according to item 1 or 2.

A covering member made of foam is provided inside the skin material of the headrest body, and the first opening of the stay through which the linear light emitting portion is inserted is closed with the covering member. The light emitting structure of the headrest according to any one of claims 1 to 3.