JP3230618U

JP3230618U - Headrest

Info

Publication number: JP3230618U
Application number: JP2020005077U
Authority: JP
Inventors: 誠治小林; 敏晴續木
Original assignee: Tokai Chemical Industries Ltd
Current assignee: Tokai Chemical Industries Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-02-12
Anticipated expiration: 2030-11-25

Abstract

【課題】搬送作業時の損傷を抑え、かつ、搬送コストを低減させるヘッドレストを提供する。【解決手段】ヘッドレスト１は、乗員の頭部を後方から支持するクッション材１０と、クッション材１０を支持する支持部材としてのステー３０とを備える。ステー３０は、クッション材１０に埋設される埋設部４０と、一対の該クッション材１０の一面１１から延出される延出部５０と、を備え、クッション材１０の一面１１には、一対の挿通孔２０が形成されており、一対の挿通孔２０の少なくとも一方は、ステー１の埋設部４０まで連通されている。ヘッドレスト１は、搬送箱に収容される際は、ヘッドレスト１と同一仕様で製造され、ヘッドレスト１と略同一形状とされる第二ヘッドレストと組合せて収容される。【選択図】図３PROBLEM TO BE SOLVED: To provide a headrest which suppresses damage during transportation work and reduces transportation cost. A headrest 1 includes a cushion material 10 that supports the head of an occupant from behind, and a stay 30 as a support member that supports the cushion material 10. The stay 30 includes a buried portion 40 embedded in the cushion material 10 and an extending portion 50 extending from one surface 11 of the cushion material 10, and a pair of insertions are inserted in the one surface 11 of the cushion material 10. The holes 20 are formed, and at least one of the pair of insertion holes 20 communicates with the embedded portion 40 of the stay 1. When the headrest 1 is housed in the transport box, it is manufactured in the same specifications as the headrest 1 and is housed in combination with a second headrest having substantially the same shape as the headrest 1. [Selection diagram] Fig. 3

Description

本考案は、自動車などの車両用シートに用いられるヘッドレストに関する。 The present invention relates to a headrest used for a vehicle seat such as an automobile.

一般的なヘッドレストは、頭部を支持する発泡体製の本体と、本体から下方に延出してシートバックの上部に装着される一対の脚部を備えるステーと、から構成される。このような外形のヘッドレストを、搬送用の箱などに収容する際には、互いのヘッドレストが干渉し、収容数が一定数に制限され、単位数当たりの搬送コストを充分に抑えることができない。
そこで、特許文献１には、外皮に包まれた所定形状のフォームの一面に穴を穿設すると共に、その面に穴に嵌合し得る固定取付棒を突設し、互いに他のフォームの穴に固定取付棒を嵌め合わせることにより、安全な荷運びを可能としたヘッドレストが開示されている。 A general headrest is composed of a foam body that supports the head and a stay having a pair of legs that extend downward from the body and are attached to the upper part of the seat back. When the headrests having such an outer shape are accommodated in a transport box or the like, the headrests interfere with each other, the number of accommodated headrests is limited to a certain number, and the transport cost per unit number cannot be sufficiently suppressed.
Therefore, in Patent Document 1, a hole is formed on one surface of a foam having a predetermined shape wrapped in an exodermis, and a fixed mounting rod that can be fitted into the hole is provided on the surface, and holes of other foams are provided. A headrest that enables safe carrying is disclosed by fitting a fixed mounting rod to the headrest.

実公昭４８−８５６９号公報Jikkensho No. 48-8569

上記特許文献１のヘッドレストは、互いに他のフォームの穴に固定取付棒を嵌め合わせる際に、過度な力が加わると、所定の勘合深さ以上に固定取付棒が挿通され、フォームが損傷される恐れがある。 In the headrest of Patent Document 1, if an excessive force is applied when fitting the fixing mounting rods into holes of other foams, the fixing mounting rods are inserted beyond a predetermined fitting depth and the foams are damaged. There is a fear.

そこで、本考案は、搬送作業時のクッション材の損傷を抑え、かつ、搬送用箱への収容数を増やして、搬送コストを低減できるヘッドレストを提供することを目的としたものである。 Therefore, it is an object of the present invention to provide a headrest that can suppress damage to the cushion material during transportation work, increase the number of accommodations in the transportation box, and reduce the transportation cost.

本考案に係るヘッドレストは、クッション材と、基部と、該基部の両端それぞれから延びる一対の脚部とを有し、該クッション材を支持するステーと、を備え、（ａ）前記ステーは、前記基部と、一対の前記脚部の一部と、からなり、前記クッション材に埋設される埋設部と、一対の該脚部の残部であって、該クッション材の一面から延出される延出部と、を備え、（ｂ）前記クッション材の前記一面には、前記ステーと同一形状である第二ステーの一対の第二脚部が挿通可能な一対の挿通孔が、一対の前記脚部の延出方向と平行する方向に形成されており、（ｃ）一対の該挿通孔の少なくとも一方は、前記ステーの埋設部まで連通されている。 The headrest according to the present invention includes a cushion material, a base portion, and a pair of legs extending from both ends of the base portion, and a stay that supports the cushion material. (A) The stay is said to be described above. A base portion, a part of the leg portion, a buried portion embedded in the cushion material, and a remaining portion of the pair of leg portions, which are an extension portion extending from one surface of the cushion material. (B) A pair of insertion holes through which a pair of second legs of a second stay having the same shape as the stay can be inserted are provided on the one surface of the cushion material. It is formed in a direction parallel to the extending direction, and (c) at least one of the pair of the insertion holes communicates with the embedded portion of the stay.

本考案に係るヘッドレストによれば、搬送用箱に収容する際に、２つのヘッドレストから延出されるステーの一対の脚部を、それぞれ他方のクッション材に形成される一対の挿通孔に挿通させることで、２つのヘッドレストが一体化され、全体の容積を小さくすることができる。これにより、搬送箱に効率よく、より多くヘッドレストを収容でき、搬送コストを低減することができる。この際、一対の挿通孔のうち少なくとも一方の挿通孔は、クッション材に埋設されているステーまで連通されていることから、それぞれ挿通させる側のステーの脚部のうち少なくとも一方の先端が、それぞれ挿通される側のステーに当接されるため、所定以上にステーの脚部が挿通されることがなく、クッション体の損傷を防ぐことができる。 According to the headrest according to the present invention, when the headrest is housed in the transport box, the pair of legs of the stays extending from the two headrests are inserted into the pair of insertion holes formed in the other cushion material. Therefore, the two headrests are integrated, and the overall volume can be reduced. As a result, more headrests can be efficiently accommodated in the transport box, and the transport cost can be reduced. At this time, since at least one of the pair of insertion holes communicates with the stay embedded in the cushion material, the tip of at least one of the legs of the stays to be inserted is respectively. Since it comes into contact with the stay on the side to be inserted, the legs of the stay are not inserted more than a predetermined value, and damage to the cushion body can be prevented.

第一実施形態のヘッドレストをステーの延出面側から見た斜視図である。It is a perspective view which looked at the headrest of 1st Embodiment from the extension surface side of a stay. 図１のII−II断面図である。FIG. 2 is a sectional view taken along line II-II of FIG. 図１のIII−III断面図である。FIG. 3 is a sectional view taken along line III-III of FIG. 第一実施形態のヘッドレストの収容時の状態を示す図である。It is a figure which shows the state at the time of accommodating the headrest of 1st Embodiment. 図２の一対の挿通孔の一方の挿通孔の部分Ｖの拡大図である。It is an enlarged view of the part V of one of the pair of insertion holes of FIG. 第二実施形態のヘッドレストをステーの延出面側から見た斜視図である。It is a perspective view which looked at the headrest of the 2nd Embodiment from the extension surface side of a stay. 図６のVII−VII断面図である。6 is a sectional view taken along line VII-VII of FIG. 第二実施形態のヘッドレストの収容時の状態を示す図である。It is a figure which shows the state at the time of accommodating the headrest of the 2nd Embodiment. 第三実施形態のヘッドレストをステーの延出面側から見た斜視図である。It is a perspective view which looked at the headrest of 3rd Embodiment from the extension surface side of a stay. 図９のX−X断面図である。9 is a cross-sectional view taken along the line XX of FIG. 第三実施形態のヘッドレストの収容時の状態を示す図である。It is a figure which shows the state at the time of accommodating the headrest of the 3rd Embodiment.

＜第一実施形態＞
（１−１．ヘッドレスト１の概要）
ヘッドレスト１の構成について、図１−図３を参照して説明する。ヘッドレスト１は、乗員の頭部を後方から支持するクッション材１０と、クッション材１０を支持する支持部材としてのステー３０とを備える。クッション材１０は、表皮材６０により全体が覆われている。ヘッドレスト１は、車両のシートバック（不図示）の上部に形成された開口部に、ステー３０を差し込むことで、シートバックに装着される。 <First Embodiment>
(1-1. Outline of headrest 1)
The configuration of the headrest 1 will be described with reference to FIGS. 1 to 3. The headrest 1 includes a cushion material 10 that supports the occupant's head from behind, and a stay 30 as a support member that supports the cushion material 10. The cushion material 10 is entirely covered with the skin material 60. The headrest 1 is attached to the seat back by inserting the stay 30 into the opening formed in the upper part of the seat back (not shown) of the vehicle.

ステー３０は、一対の脚部の一方の端部は、連結され、クッション材１０と一体化される。一対の脚部の他方の端部は、クッション材１０から延出され、シートバックの上部に差し込まれる。 In the stay 30, one end of the pair of legs is connected and integrated with the cushion material 10. The other end of the pair of legs extends from the cushioning material 10 and is inserted into the upper part of the seat back.

（１−２．ステー３０の構成）
ステー３０の構成について、図１−図３を参照して説明する。ステー３０は、筒状の金属パイプ材により、Ｕ字状の外形に形成される。ステー本体３０は、基部３１と、基部３１の両端それぞれから延びる一対の脚部３２、３２とを備える。
以下の説明において、一対の脚部３２、３２が直線状に延出される図２の上下方向を延出方向Ａとし、延出方向Ａに直交し、かつ、一対の脚部３２、３２が並んで配置される図２の左右方向を配列方向Ｂとして説明する。 (1-2. Configuration of stay 30)
The configuration of the stay 30 will be described with reference to FIGS. 1 to 3. The stay 30 is formed into a U-shaped outer shape by a tubular metal pipe material. The stay body 30 includes a base 31 and a pair of legs 32, 32 extending from both ends of the base 31.
In the following description, the vertical direction in FIG. 2 in which the pair of legs 32, 32 are extended in a straight line is defined as the extension direction A, and the pair of legs 32, 32 are arranged at right angles to the extension direction A. The left-right direction of FIG. 2 arranged in FIG. 2 will be described as the arrangement direction B.

一対の脚部３２、３２は、延出方向Ａに延び、配列方向Ｂに並んで配置される。図３に示すように、一対の脚部３２、３２は、配列方向Ｂの断面視において、中間部が屈曲され、なす角の大きなＬ字形状に形成される。一対の脚部３２、３２は、上端側がそれぞれ連結され、基部３１とされる一方、下端側は、その端縁が湾曲状に加工される。 The pair of legs 32, 32 extend in the extension direction A and are arranged side by side in the arrangement direction B. As shown in FIG. 3, the pair of leg portions 32, 32 are formed in an L-shape having a large angle formed by bending the intermediate portion in the cross-sectional view in the arrangement direction B. The upper end side of each of the pair of leg portions 32, 32 is connected to form the base portion 31, while the end edge of the lower end side is processed into a curved shape.

（１−３．クッション材１０の構成）
クッション材１０の構成について、図１−図３を参照して説明する。クッション材１０は、正面視が台形形状とされ、上下方向（延出方向Ａ）及び左右方向（延出方向Ｂ）の幅に対して奥行方向の幅の小さい、台形四角錐形状である。また、平面、正面、背面は外側に僅かに凸となる曲面形状とされ、左右側面は、略平面形状とされる。なお、任意の形状のクッション材を用いることができる。 (1-3. Composition of cushion material 10)
The configuration of the cushion material 10 will be described with reference to FIGS. 1 to 3. The cushion material 10 has a trapezoidal shape when viewed from the front, and has a trapezoidal quadrangular pyramid shape in which the width in the depth direction is smaller than the width in the vertical direction (extension direction A) and the horizontal direction (extension direction B). Further, the flat surface, the front surface, and the back surface have a curved surface shape that is slightly convex outward, and the left and right side surfaces have a substantially planar shape. A cushion material having any shape can be used.

クッション材１０は、ポリウレタンフォームで形成される。布により予め袋状に形成された表皮材６０の中に、ステー３０の基部３１側を配置させた状態で、ポリウレタン材料を注入し、発泡成形させて、ステー３０と一体化される。
なお、ポリウレタンに限らず、ポリスチレン、ポリオレフィン、ポリブタジエン系、ポリプロピレンなどの他の発泡体や、スチレン系、オレフィン系、ポリエステル系、ポリアミド系、ウレタン系などのエラストマーで成形してもよい。また、表皮材６０は、織布、不織布、編布、皮革（本革、合成皮革）、発泡スラブ等により、任意の層構成に形成される。 The cushion material 10 is made of polyurethane foam. In a state where the base 31 side of the stay 30 is arranged in the skin material 60 previously formed in a bag shape by the cloth, the polyurethane material is injected, foam-molded, and integrated with the stay 30.
In addition to polyurethane, it may be molded with other foams such as polystyrene, polyolefin, polybutadiene, polypropylene, and elastomers such as styrene, olefin, polyester, polyamide, and urethane. The skin material 60 is formed into an arbitrary layer structure by using a woven fabric, a non-woven fabric, a knitted fabric, leather (genuine leather, synthetic leather), foamed slab, or the like.

クッション材１０の底面１１は、内側にやや凸となる曲面形状とされ、底面１１から、一対の脚部３２、３２が延出される。
クッション材１０の底面１１には、ステー３０の一対の脚部３２、３２の延出方向Ａと平行する方向に延びる一対の挿通孔２０、２０が形成されている。一対の挿通孔２０、２０は、後述するように、ステー１と同一形状である第二ステー３３０の一対の脚部３３２、３３２が挿通可能な形状に形成される。なお、本実施形態では、円形状の一対の挿通孔２０、２０が形成される。 The bottom surface 11 of the cushion material 10 has a curved surface shape that is slightly convex inward, and a pair of legs 32, 32 extend from the bottom surface 11.
A pair of insertion holes 20 and 20 extending in a direction parallel to the extending direction A of the pair of legs 32 and 32 of the stay 30 are formed on the bottom surface 11 of the cushion material 10. As will be described later, the pair of insertion holes 20 and 20 are formed so that the pair of legs 332 and 332 of the second stay 330 having the same shape as the stay 1 can be inserted. In this embodiment, a pair of circular insertion holes 20 and 20 are formed.

具体的には、一対の挿通孔２０、２０は、後述するように、第二ヘッドレスト３０１のクッション材３１０の底面３１１から延出される一対の脚部３３２、３３２の外形と同一形状で、かつ、一対の脚部３３２、３３２の外径と同一または僅かに小さい内径を有する孔形状とされ、クッショ材１０の底面１１に開口する一方、クッション材１０の内部に所定の深さをもって形成される。
なお、一対の挿通孔２０、２０は、一対の脚部３３２、３３２の外径よりも大きな孔径としたり、開口端側から底端側に向かって孔径を小さくするなど、任意の孔形状、孔径に設定することができる。 Specifically, as will be described later, the pair of insertion holes 20 and 20 have the same shape as the outer shape of the pair of legs 332 and 332 extending from the bottom surface 311 of the cushion material 310 of the second headrest 301, and have the same shape. It has a hole shape having an inner diameter that is the same as or slightly smaller than the outer diameter of the pair of legs 332 and 332, and is formed at a predetermined depth inside the cushion material 10 while opening at the bottom surface 11 of the cushion material 10.
The pair of insertion holes 20 and 20 have an arbitrary hole shape and diameter, such as a hole diameter larger than the outer diameter of the pair of legs 332 and 332, or a hole diameter decreasing from the opening end side to the bottom end side. Can be set to.

（１−４．クッション材１０とステー３０とが一体化されたヘッドレスト１の構成）
クッション材１０とステー３０とが一体化されたヘッドレスト１の構成について、図１−図３を参照して説明する。ステー３０は、クッション材１０と一体化されて、クッション材１０に埋設される部分（埋設部４０）と、クッション材１０から延出される部分（延出部５０）とにより構成される。埋設部４０は、ステー３０のうち、基部３１と、一対の脚部３２、３２のうち、基部３１の両端それぞれから延び、中間部で屈曲される部分とを含み、延出部５０は、一対の脚部３２、３２が、中間部で屈曲された後、延出方向Ａに直線状に延びる部分のうち、クッション材１０の底面１１から露出される部分である。 (1-4. Configuration of headrest 1 in which cushion material 10 and stay 30 are integrated)
The configuration of the headrest 1 in which the cushion material 10 and the stay 30 are integrated will be described with reference to FIGS. 1 to 3. The stay 30 is integrated with the cushion material 10 and is composed of a portion (embedded portion 40) embedded in the cushion material 10 and a portion (extended portion 50) extending from the cushion material 10. The buried portion 40 includes a base portion 31 of the stay 30 and a portion of the pair of legs 32 and 32 that extends from both ends of the base portion 31 and is bent at an intermediate portion, and the extending portion 50 includes a pair of extending portions 50. The legs 32, 32 of the above are the portions exposed from the bottom surface 11 of the cushion material 10 among the portions extending linearly in the extending direction A after being bent at the intermediate portion.

具体的には、ステー３０の埋設部４０は、基部３１と、クッション材１０から延出される延出部５０における一対の脚部３２、３２に連続して延出方向Ａに直線状に延びる一対の第一埋設脚部４１、４１と、一対の第一埋設脚部４１、４１が屈曲されて、基部３１側に直線状に延びる部分であって、基部３１と、一対の第一埋設脚部４１、４１とを接続する一対の第二埋設脚部４２、４２と、により構成される。 Specifically, the buried portion 40 of the stay 30 is a pair extending linearly in the extending direction A continuously with the base portion 31 and the pair of leg portions 32, 32 in the extending portion 50 extending from the cushion material 10. The first buried legs 41, 41 and the pair of first buried legs 41, 41 are bent and extend linearly toward the base 31, and the base 31 and the pair of first buried legs are formed. It is composed of a pair of second buried legs 42, 42 connecting the 41, 41.

本実施形態では、一対の第一埋設脚部４１、４１は、一対の脚部３２、３２（一対の第一埋設脚部４１、４１）の延出方向Ａと配列方向Ｂとに直交する方向（図３の左方向）に屈曲される。換言すると、基部３１と、一対の脚部３２、３２（一対の第一埋設脚部４１、４１）とは、一対の脚部３２、３２の配列方向Ｂの断面視において、一対の脚部３２、３２（一対の第一埋設脚部４１、４１）の延出方向Ａと配列方向Ｂとに直交する方向（図３の左右方向）に離れて配置され、一対の第二埋設脚部４２、４２は、一対の第一埋設脚部４１、４１に対して、延出方向Ａに交差するように配置される。 In the present embodiment, the pair of first buried legs 41, 41 is in a direction orthogonal to the extending direction A and the arrangement direction B of the pair of legs 32, 32 (the pair of first buried legs 41, 41). It is bent (to the left in FIG. 3). In other words, the base 31 and the pair of legs 32, 32 (the pair of first buried legs 41, 41) are the pair of legs 32 in the cross-sectional view of the pair of legs 32, 32 in the arrangement direction B. 32 (a pair of first buried legs 41, 41) are arranged apart from each other in a direction (left-right direction in FIG. 3) orthogonal to the extending direction A and the arrangement direction B, and the pair of second buried legs 42, The 42 is arranged so as to intersect the pair of first buried legs 41, 41 in the extending direction A.

一方、クッション材１０の一対の挿通孔２０、２０は、ステー３０の一対の脚部３２、３２（一対の第一埋設脚部４１、４１）の延出方向Ａと配列方向Ｂとに直交する方向（図３の左右方向）の投影において、ステー３０の一対の脚部３２、３２（一対の第一埋設脚部４１、４１）と相互に重なるように配置される。 On the other hand, the pair of insertion holes 20 and 20 of the cushion material 10 are orthogonal to the extending direction A and the arrangement direction B of the pair of legs 32 and 32 (the pair of first embedded legs 41 and 41) of the stay 30. In the projection in the direction (left-right direction in FIG. 3), the stays 30 are arranged so as to overlap each other with the pair of legs 32, 32 (the pair of first buried legs 41, 41).

一対の挿通孔２０、２０は、図３に示すように、ステー３０の一対の脚部３２、３２の配列方向Ｂの断面視において、ステー３０の基部３１と、一対の脚部３２、３２（一対の第一埋設脚部４１、４１）との間に配置されている。換言すると、ステー３０の一対の第二埋設脚部４２、４２は、一対の挿通孔２０、２０の延出方向Ａの延出延長線上に配置される。 As shown in FIG. 3, the pair of insertion holes 20 and 20 have the base 31 of the stay 30 and the pair of legs 32 and 32 (in the cross-sectional view of the pair of legs 32 and 32 of the stay 30 in the arrangement direction B). It is arranged between the pair of first buried legs 41, 41). In other words, the pair of second buried legs 42, 42 of the stay 30 are arranged on the extension extension line of the pair of insertion holes 20, 20 in the extension direction A.

ここで、一対の挿通孔２０、２０は、ステー３０の一対の脚部３２、３２（一対の第一埋設脚部４１、４１）の延出方向Ａと平行する方向に延び、その底端が、それぞれ、ステー３０の一対の第二埋設脚部４２、４２に当接されるまで、延出される。換言すると、一対の挿通孔２０、２０は、クッション材１０の底面１１の外部と、ステー３０の一対の第二埋設脚部４２、４２とを連通させる。
また、図３に示すように、一対の挿通孔２０、２０は、その底端の一部（図３の右上端）が、ステー３０の一対の第二埋設脚部４２、４２まで連通される。なお、一対の挿通孔２０、２０は、その底端の少なくとも一部分がステー３０の埋設部４０まで連通されていればよい。 Here, the pair of insertion holes 20, 20 extend in a direction parallel to the extension direction A of the pair of legs 32, 32 (the pair of first embedded legs 41, 41) of the stay 30, and the bottom end thereof , Each of which is extended until it comes into contact with the pair of second buried legs 42, 42 of the stay 30. In other words, the pair of insertion holes 20 and 20 communicate the outside of the bottom surface 11 of the cushion material 10 with the pair of second embedded legs 42 and 42 of the stay 30.
Further, as shown in FIG. 3, a part of the bottom end (upper right end of FIG. 3) of the pair of insertion holes 20 and 20 communicates with the pair of second buried legs 42 and 42 of the stay 30. .. It is sufficient that at least a part of the bottom end of the pair of insertion holes 20 and 20 communicates with the buried portion 40 of the stay 30.

（１−５．ヘッドレスト１の収容時の構成）
ヘッドレスト１の収容時の構成について、図４を用いて説明する。ヘッドレスト１は、搬送箱に収容させる際は、ヘッドレスト１と同一仕様で製造され、ヘッドレスト１と略同一形状とされる第二ヘッドレスト３０１と組合せて収容される。
具体的には、ヘッドレスト１のクッション材１０の正面と、第二ヘッドレスト３０１のクッション材３１０の背面とが、同一方向を向くように、クッション材１０の底面１１と、第二クッション材３１０の底面３１１と対向配置させ、ステー３０の一対の脚部３２、３２を第二クッション材３１０一対の挿通孔３２０、３２０に挿通させると同時に、第二ステー３３０の一対の第二脚部３３２、３３２をクッション材１０の一対の挿通孔２０、２０に挿通させる。 (1-5. Configuration of headrest 1 when accommodated)
The configuration of the headrest 1 when it is housed will be described with reference to FIG. When the headrest 1 is housed in the transport box, it is manufactured in the same specifications as the headrest 1 and is housed in combination with the second headrest 301 which has substantially the same shape as the headrest 1.
Specifically, the bottom surface 11 of the cushion material 10 and the bottom surface of the second cushion material 310 so that the front surface of the cushion material 10 of the headrest 1 and the back surface of the cushion material 310 of the second headrest 301 face the same direction. The pair of legs 32, 32 of the stay 30 is inserted into the pair of insertion holes 320, 320 of the second cushion material 310 so as to face each other, and at the same time, the pair of second legs 332, 332 of the second stay 330 are inserted. It is inserted into a pair of insertion holes 20 and 20 of the cushion material 10.

この際、クッション材１０の一対の挿通孔２０、２０は、ステー３０の一対の第二埋設脚部４２、４２まで連通されているため、第二ステー３３０の一対の第二脚部３３２、３３２をクッション材１０の一対の挿通孔２０、２０に挿通させていくと、第二ステー３３０の一対の第二脚部３３２、３３２の先端は、ステー３０の一対の第二埋設脚部４２、４２に当接される。同様に、ステー３０の一対の脚部３２、３２を第二ステー３３０の一対の挿通孔３２０、３２０に挿通させていくと、ステー３０の一対の脚部３２、３２の先端は、第二ステー３３０の一対の脚部３３２、３３２における埋設部（不図示）に当接され、互いに位置決めされる。 At this time, since the pair of insertion holes 20 and 20 of the cushion material 10 are communicated with the pair of second embedded legs 42 and 42 of the stay 30, the pair of second leg portions 332 and 332 of the second stay 330 are communicated with each other. Is inserted into the pair of insertion holes 20 and 20 of the cushion material 10, and the tips of the pair of second leg portions 332 and 332 of the second stay 330 are the pair of second buried leg portions 42 and 42 of the stay 30. Is in contact with. Similarly, when the pair of legs 32, 32 of the stay 30 are inserted into the pair of insertion holes 320, 320 of the second stay 330, the tips of the pair of legs 32, 32 of the stay 30 become the second stay. The pair of legs 332 and 332 of 330 are brought into contact with the buried portions (not shown) and positioned with each other.

（１−６．効果）
前述のとおり、ヘッドレスト１と第二ヘッドレスト３０１とを、互いに、第二ステー３３０（又はステー３０）の一対の第二脚部３３２、３３２（又は一対の脚部３２、３２）を、他方のクッション材１０（又は第二クッション材３１０）の一対の挿通孔２０、２０（又は一対の第二挿通孔３２０、３２０）に挿通させる際に、一方の一対の第二脚部３３２、３３２（又は一対の脚部３２、３２）の先端が、他方の一対の第二埋設脚部４２、４２（又は埋設部（不図示））に当接されて位置決めされるため、挿通時に、過度な力が加わっても、挿通長さが設定値に制限され、一方の一対の第二脚部３３２、３３２（又は一対の脚部３２、３２）の先端が、他方のクッション材１０（又は第二クッション材３１０）の一対の挿通孔２０、２０（又は一対の第二挿通孔３２０、３２０）を突き破って、互いのクッション材１０（又は第二クッション材３１０）を損傷させることを防止することができる。 (1-6. Effect)
As described above, the headrest 1 and the second headrest 301, the pair of second legs 332, 332 (or the pair of legs 32, 32) of the second stay 330 (or stay 30), and the other cushion. One pair of second leg portions 332, 332 (or pair) when inserting the material 10 (or the second cushion material 310) into the pair of insertion holes 20, 20 (or the pair of second insertion holes 320, 320). Since the tips of the legs 32, 32) of the above are abutted against the other pair of second embedded legs 42, 42 (or the embedded portions (not shown)) and positioned, an excessive force is applied at the time of insertion. However, the insertion length is limited to the set value, and the tip of one pair of second leg portions 332, 332 (or pair of leg portions 32, 32) is the other cushion material 10 (or second cushion material 310). ) Can be prevented from breaking through the pair of insertion holes 20 and 20 (or the pair of second insertion holes 320 and 320) to damage each other's cushion material 10 (or the second cushion material 310).

また、挿通時に、一方の一対の脚部３３２、３３２（又は３２、３２）の先端が、他方の一対の第二埋設脚部４２、４２（又は埋設部（不図示））に当接されることを、触覚又は聴覚で感知することができるため、所定位置まで確実に挿通されることができ、組合せ作業を効率に行うことができる。 Further, at the time of insertion, the tips of one pair of legs 332, 332 (or 32, 32) are brought into contact with the other pair of second embedded legs 42, 42 (or buried portions (not shown)). Since this can be sensed by touch or hearing, it can be reliably inserted to a predetermined position, and the combination work can be performed efficiently.

さらに、ヘッドレスト１は、第二ヘッドレスト３０１と組合された状態で搬送箱に収容されるため、それぞれ別々に収容する場合に比べて、容積を小さくでき、搬送箱に収める数量を増やすことで、搬送コストを低減することできる。 Further, since the headrest 1 is housed in the transport box in a state of being combined with the second headrest 301, the volume can be reduced as compared with the case where each is housed separately, and the number of headrests 1 stored in the transport box can be increased. The cost can be reduced.

（１−７．表皮材６０によるクッション材１０の一対の挿通孔２０、２０の被覆構成）
表皮材６０によるクッション材１０の一対の挿通孔２０、２０の被覆構成について、図１−図５を用いて説明する。
表皮材６０（図２、３では不図示）は、クッション材１０の一面（底面）１１を被覆する第一表皮部材６１と、クッション材１０の平面、正面、背面を被覆する第二表皮部材（不図示）と、クッション材の左側面を被覆する第三表皮部材（不図示）と、クッション材１０の右側面を被覆する第四表皮部材（不図示）とが、予め、縫製されて、袋状に形成される。 (1-7. Covering configuration of a pair of insertion holes 20, 20 of the cushion material 10 by the skin material 60)
The covering configuration of the pair of insertion holes 20 and 20 of the cushion material 10 by the skin material 60 will be described with reference to FIGS. 1 to 5.
The skin material 60 (not shown in FIGS. 2 and 3) includes a first skin member 61 that covers one surface (bottom surface) 11 of the cushion material 10 and a second skin member that covers the flat surface, front surface, and back surface of the cushion material 10 (not shown). A bag (not shown), a third skin member (not shown) that covers the left side surface of the cushion material, and a fourth skin member (not shown) that covers the right side surface of the cushion material 10 are sewn in advance. It is formed in a shape.

第一表皮部材６１には、クッション材１０の一面（底面）１１に形成される一対の挿通孔２０、２０に対応する位置に、一対の穴６２、６２が形成される。
本実施形態では、一対の穴６２、６２は、それぞれ、クッション材１０の一対の挿通孔２０、２０と略同芯上に配置された円形状であり、一対の挿通孔２０、２０の孔径よりも４ｍｍ程度小さい穴径を有する。図５に示すように、一対の穴６２、６２の２ｍｍ幅程度の円環状の周縁部が一対の挿通孔２０、２０の孔内部に折り返されて、一対の挿通孔２０、２０の開口端縁が被覆されている。なお、一対の穴６２、６２は、その周縁部が、一対の挿通孔２０、２０の孔内に折り返しが可能であれば、その穴形状、穴径は問わない。 A pair of holes 62, 62 is formed in the first skin member 61 at positions corresponding to the pair of insertion holes 20, 20 formed on one surface (bottom surface) 11 of the cushion material 10.
In the present embodiment, the pair of holes 62 and 62 have a circular shape arranged substantially concentrically with the pair of insertion holes 20 and 20 of the cushion material 10, respectively, and have a diameter of the pair of insertion holes 20 and 20. Also has a hole diameter as small as about 4 mm. As shown in FIG. 5, an annular peripheral edge having a width of about 2 mm of the pair of holes 62, 62 is folded back inside the pair of insertion holes 20, 20 and the opening edge of the pair of insertion holes 20, 20. Is covered. The pair of holes 62, 62 may have any hole shape and hole diameter as long as the peripheral edge thereof can be folded back into the pair of insertion holes 20, 20.

なお、一対の挿通孔２０、２０の開口端縁は、ヘッドレスト１の発泡成形時に、第一表皮部材６１により被覆される。具体的には、第一表皮部材６１の一対の穴６２、６２に、一対の挿通孔２０、２０を形成するための筒状部材（不図示）が挿通され、一対の穴６２、６２の円環状の周縁部が、筒状部材により表皮６０の内部に折り返された状態で、クッション材１０を発泡成形させることで、この折り返された周縁部がクッション材１０と一体化され、一対の挿通孔２０、２０の開口端縁が被覆される。 The opening edge of the pair of insertion holes 20 and 20 is covered with the first skin member 61 at the time of foam molding of the headrest 1. Specifically, a tubular member (not shown) for forming the pair of insertion holes 20 and 20 is inserted into the pair of holes 62 and 62 of the first skin member 61, and the circle of the pair of holes 62 and 62. By foam-molding the cushion material 10 in a state where the annular peripheral edge portion is folded back inside the skin 60 by the tubular member, the folded peripheral edge portion is integrated with the cushion material 10 and a pair of insertion holes. 20 and 20 open edge edges are covered.

上述のとおり、ヘッドレスト１は、クッション材１０の底面１１を被覆する第一表皮部材６１を備え、第一表皮部材６１には、クッション材１０の一対の挿通孔２０、２０に対応する位置に一対の穴６２、６２が形成され、一対の穴６２、６２の周縁部が一対の挿通孔２０、２０の孔内に折り返されて、一対の挿通孔２０、２０の開口端縁が被覆されている。第一表皮部材６１により、一対の挿通孔２０、２０の開口端縁に露出するクッション材１０が塞がれるため、ヘッドレスト１の意匠性を改善させることができる。 As described above, the headrest 1 includes a first skin member 61 that covers the bottom surface 11 of the cushion material 10, and the first skin member 61 has a pair of positions corresponding to the pair of insertion holes 20 and 20 of the cushion material 10. Holes 62, 62 are formed, and the peripheral edges of the pair of holes 62, 62 are folded back into the holes of the pair of insertion holes 20, 20 to cover the open edge of the pair of insertion holes 20, 20. .. Since the cushion material 10 exposed to the opening edge of the pair of insertion holes 20 and 20 is closed by the first skin member 61, the design of the headrest 1 can be improved.

（１−８．第一実施形態の変形例）
第一実施形態のヘッドレスト１は、一対の挿通孔２０、２０を、ステー３０の一対の第二埋設脚部４２、４２に当接されるまで連通させる構成としたが、一対の挿通孔２０、２０を、ステー３０の基部３１に当接されるまで連通される構成としてもよい。 (1-8. Modified example of the first embodiment)
The headrest 1 of the first embodiment has a configuration in which the pair of insertion holes 20 and 20 communicate with each other until they come into contact with the pair of second embedded legs 42 and 42 of the stay 30, but the pair of insertion holes 20 The 20 may be communicated until it comes into contact with the base 31 of the stay 30.

＜第二実施形態＞
（２．１．ヘッドレスト１０１の概要）
第二実施形態のヘッドレスト１０１の構成について、図６−図７を参照して説明する。ヘッドレスト１０１は、乗員の頭部を後方から支持するクッション材１１０と、クッション材１１０を支持する支持部材としてのステー１３０とを備える。また、クッション材１１０は、表皮材１６０（図７では不図示）で全体が覆われている。
ヘッドレスト１０１は、第一実施形態のヘッドレスト１に対して、ステーの埋設部の形状、及び、クッション材に形成される一対の挿通孔の配置構成が異なる。
以下に、第一実施形態のヘッドレスト１と異なる部分を中心に説明する。 <Second embodiment>
(2.1. Outline of headrest 101)
The configuration of the headrest 101 of the second embodiment will be described with reference to FIGS. 6-7. The headrest 101 includes a cushion material 110 that supports the occupant's head from behind, and a stay 130 as a support member that supports the cushion material 110. Further, the cushion material 110 is entirely covered with a skin material 160 (not shown in FIG. 7).
The headrest 101 differs from the headrest 1 of the first embodiment in the shape of the embedded portion of the stay and the arrangement configuration of the pair of insertion holes formed in the cushion material.
Hereinafter, a portion different from the headrest 1 of the first embodiment will be mainly described.

（２−２．ステー１３０の構成）
ステー１３０は、基部１３１と、基部１３１の両端それぞれから延びる一対の脚部１３２、１３２とを備える。
以下の説明において、一対の脚部１３２、１３２が直線状に延出される図７の上下方向を延出方向Ａとし、延出方向Ａに直交し、かつ、一対の脚部１３２、１３２が並んで配置される図７の左右方向を配列方向Ｂとして説明する。 (2-2. Configuration of stay 130)
The stay 130 includes a base 131 and a pair of legs 132 and 132 extending from both ends of the base 131.
In the following description, the vertical direction in FIG. 7 in which the pair of legs 132 and 132 are linearly extended is defined as the extension direction A, and the pair of legs 132 and 132 are arranged at right angles to the extension direction A. The left-right direction of FIG. 7 arranged in FIG. 7 will be described as the arrangement direction B.

一対の脚部１３２、１３２は、延出方向Ａに直線状に延び、配列方向Ｂの投影において、互いに重なるように配置される。一対の脚部１３２、１３２は、図６−図７に示すように、中間部が屈曲されることなく、直線状に延び、上端側がそれぞれ連結され、基部２３１とされる。 The pair of legs 132, 132 extend linearly in the extension direction A and are arranged so as to overlap each other in the projection in the arrangement direction B. As shown in FIGS. 6 to 7, the pair of legs 132 and 132 extend linearly without bending the intermediate portion, and the upper end sides are connected to each other to form the base portion 231.

（２−３．クッション材１１０の構成）
クッション材１１０の底面２１１には、一対の脚部１３２、１３２の延出方向Ａと平行する方向に延びる一対の挿通孔１２０、１２０が形成される。一対の挿通孔１２０、１２０は、後述するように、ステー１３０と同一形状である第二ステー４３０の一対の第二脚部４３２、４３２が挿通可能な形状に形成される。なお、本実施形態では、円形状の一対の挿通孔１２０、１２０が形成される。 (2-3. Configuration of cushion material 110)
A pair of insertion holes 120, 120 extending in a direction parallel to the extending direction A of the pair of legs 132, 132 are formed on the bottom surface 211 of the cushion material 110. As will be described later, the pair of insertion holes 120 and 120 are formed so that the pair of second leg portions 432 and 432 of the second stay 430 having the same shape as the stay 130 can be inserted. In this embodiment, a pair of circular insertion holes 120, 120 are formed.

具体的には、一対の挿通孔１２０、１２０は、後述するように、第二ヘッドレスト４０１の第二クッション材（不図示）の底面４１１から延出される一対の第二脚部４３２、４３２の外形と同一形状で、かつ、一対の第二脚部４３２、４３２の外径と同一または僅かに小さな内径を有する孔形状とされ、クッショ材１１０の底面１１１に開口する一方、クッション材１１０の内部に所定の深さをもって形成される。
なお、一対の挿通孔１２０、１２０は、一対の脚部４３２、４３２の外径よりも大きな孔径としたり、開口端側から底端側に向かって孔径を小さくするなど、任意の孔形状、孔径に設定することができる。 Specifically, as will be described later, the pair of insertion holes 120, 120 are the outer shapes of the pair of second leg portions 432 and 432 extending from the bottom surface 411 of the second cushion material (not shown) of the second headrest 401. It has the same shape as the above and has a hole shape having the same or slightly smaller inner diameter as the outer diameter of the pair of second leg portions 432 and 432, and opens to the bottom surface 111 of the cushion material 110 while inside the cushion material 110. It is formed with a predetermined depth.
The pair of insertion holes 120, 120 have an arbitrary hole shape and diameter, such as a hole diameter larger than the outer diameter of the pair of legs 432 and 432, or a hole diameter decreasing from the opening end side to the bottom end side. Can be set to.

（２−４．クッション材１１０とステー１３０とが一体化されたヘッドレスト１０１の構成）
ステー３０は、図７に示すように、クッション材１１０と一体化されて、クッション材１１０に埋設される部分（埋設部１４０）と、クッション材１１０から延出される部分（延出部１５０）とにより構成される。埋設部１４０は、ステー１３０のうち、基部１３１と、一対の脚部１３２、１３２のうち、基部１３１の両端それぞれから延出方向Ａに直線状に延びる部分の一部とを含み、延出部５０は、埋設部１４０における一対の脚部１３２、１３２に連続して直線状に延び、クッション材１１０の底面１１１から露出される部分である。 (2-4. Configuration of headrest 101 in which cushion material 110 and stay 130 are integrated)
As shown in FIG. 7, the stay 30 includes a portion that is integrated with the cushion material 110 and is embedded in the cushion material 110 (embedded portion 140) and a portion that extends from the cushion material 110 (extended portion 150). Consists of. The buried portion 140 includes a base portion 131 of the stay 130 and a part of a pair of leg portions 132 and 132 that extend linearly from both ends of the base portion 131 in the extending direction A, and includes an extending portion. Reference numeral 50 denotes a portion of the buried portion 140 that extends continuously and linearly to the pair of legs 132 and 132 and is exposed from the bottom surface 111 of the cushion material 110.

換言すると、ステー１３０の埋設部１４０は、クッション材１１０から延出される延出部１５０における一対の脚部１３２、１３２と連続して直線状に延びる部分と、その上端がそれぞれ連結される基部１３１と、により構成される。
また、ステー１３０の埋設部１４０における一対の脚部１３２、１３２は、配列方向Ｂの投影において、互いに重なるように配置される。 In other words, the embedded portion 140 of the stay 130 is a portion extending linearly continuously with the pair of leg portions 132, 132 in the extending portion 150 extending from the cushion material 110, and a base 131 to which the upper ends thereof are connected to each other. And.
Further, the pair of leg portions 132, 132 in the embedded portion 140 of the stay 130 are arranged so as to overlap each other in the projection in the arrangement direction B.

一方、クッション材１１０の一対の挿通孔１２０、１２０は、ステー１３０の一対の脚部１３１、１３１の配列方向Ｂの投影において、ステー１３０の一対の脚部１３２、１３２と重なり合うように並んで配置される。
また、一対の挿通孔１２０、１２０のうち、一方の挿通孔１２０（図７の左側）は、ステー１３０の一対の脚部１３２、１３２の間に配置され、他方の挿通孔１２０（図７の右側）は、ステー１３０の一対の脚部１３２、１３２のうち一方の脚部１３２に対して、配列方向Ｂの外側に配置される。なお、他方の挿通孔１２０（図７の右側）を一対の脚部１３２、１３２の間に配置させ、一方の挿通孔１２０（図７の左側）を一方の脚部１３２に対して、配列方向Ｂの外側に配置させてもよい。 On the other hand, the pair of insertion holes 120, 120 of the cushion material 110 are arranged side by side so as to overlap the pair of legs 132, 132 of the stay 130 in the projection of the arrangement direction B of the pair of legs 131, 131 of the stay 130. Will be done.
Further, of the pair of insertion holes 120 and 120, one insertion hole 120 (left side in FIG. 7) is arranged between the pair of legs 132 and 132 of the stay 130, and the other insertion hole 120 (FIG. 7). The right side) is arranged outside the arrangement direction B with respect to one of the pair of legs 132 and 132 of the stay 130. The other insertion hole 120 (right side in FIG. 7) is arranged between the pair of legs 132 and 132, and the one insertion hole 120 (left side in FIG. 7) is arranged in the arrangement direction with respect to one leg 132. It may be arranged outside B.

換言すると、ステー１３０の一対の脚部１３２、１３２の一方の脚部１３２、クッション材１１０の一対の挿通孔１２０、１２０の一方の挿通孔１２０、ステー１３０の一対の脚部１３２、１３２の他方の脚部１３２、クッション材１１０の一対の挿通孔１２０、１２０の他方の挿通孔１２０の順に、配列方向Ｂの投影において重なるように配置される。
本構成により、クッション材１１０の一対の挿通孔１２０、１２０のうち、ステー１３０の一対の脚部１３２、１３２の間に配置される一方の挿通孔１２０の延出方向Ａの延出延長線上には、ステー１３０の基部１３１が配置される。 In other words, the pair of legs 132 and 132 of the stay 130, the pair of insertion holes 120 and 120 of the cushion material 110, and the other of the pair of legs 132 and 132 of the stay 130. The legs 132, the pair of insertion holes 120 of the cushion material 110, and the other insertion holes 120 of 120 are arranged so as to overlap each other in the projection of the arrangement direction B.
According to this configuration, of the pair of insertion holes 120, 120 of the cushion material 110, on the extension extension line of the extension direction A of one of the insertion holes 120 arranged between the pair of legs 132, 132 of the stay 130. Is arranged with the base 131 of the stay 130.

ここで、一対の挿通孔１２０、１２０は、ステー１３０の一対の脚部１３２、１３２の延出方向Ａと平行する方向に延び、一対の挿通孔１２０、１２０のうち、ステー１３０の一対の脚部１３２、１３２の間に配置される一方の挿通孔１２０（図７の左側）の底端は、ステー１３０の基部１３１に当接されるまで延出される。換言すると、一方の挿通孔１２０（図７の左側）は、クッション材１１０の底面１１１の外部と、ステー１３０の基部１３１とを連通させる。
また、図７に示すように、一方の挿通孔１２０（図７の左側）は、その底端の一部（図７の左上端）が、ステー１３０の基部１３１まで連通される。なお、挿通孔１２０は、その底端の少なくとも一部分が基部１３１まで連通されていればよい。 Here, the pair of insertion holes 120, 120 extend in a direction parallel to the extension direction A of the pair of legs 132, 132 of the stay 130, and among the pair of insertion holes 120, 120, the pair of legs of the stay 130. The bottom end of one of the insertion holes 120 (left side in FIG. 7) arranged between the portions 132 and 132 extends until it comes into contact with the base 131 of the stay 130. In other words, one insertion hole 120 (left side in FIG. 7) communicates the outside of the bottom surface 111 of the cushion material 110 with the base 131 of the stay 130.
Further, as shown in FIG. 7, a part of the bottom end (upper left end of FIG. 7) of one of the insertion holes 120 (left side of FIG. 7) communicates with the base 131 of the stay 130. The insertion hole 120 may have at least a part of its bottom end communicating with the base 131.

なお、第一実施形態と同様に、ヘッドレスト１０１は、クッション材１１０の底面１１１を被覆する第一表皮部材（不図示）を備え、第一表皮部材（不図示）には、クッション材１１０の一対の挿通孔１２０、１２０に対応する位置に、一対の挿通孔１２０、１２０の孔径よりも小さい開口径をもった一対の穴（不図示）が形成され、一対の穴（不図示）の周縁部が一対の挿通孔１２０、１２０の孔内部に折り返されて、一対の挿通孔１２０、１２０の開口端縁が被覆されている。本構成により、クッション材１１０の底面１１１に露出される一対の挿通孔１２０、１２０の意匠性を改善させることができる。 As in the first embodiment, the headrest 101 includes a first skin member (not shown) that covers the bottom surface 111 of the cushion material 110, and the first skin member (not shown) is a pair of cushion materials 110. A pair of holes (not shown) having an opening diameter smaller than the hole diameters of the pair of insertion holes 120, 120 are formed at positions corresponding to the insertion holes 120, 120, and peripheral portions of the pair of holes (not shown). Is folded back inside the pair of insertion holes 120, 120 to cover the open edge of the pair of insertion holes 120, 120. With this configuration, the design of the pair of insertion holes 120, 120 exposed on the bottom surface 111 of the cushion material 110 can be improved.

（２−５．ヘッドレスト１０１の収容時の構成）
ヘッドレスト１０１の収容時の構成について、図８を用いて説明する。ヘッドレスト１０１は、搬送箱に収容させる際は、ヘッドレスト１０１と同一仕様で製造され、ヘッドレスト１０１と略同一形状とされる第二ヘッドレスト４０１と組合せて収容される。
具体的には、ヘッドレスト１０１のクッション材１１０の正面と、第二ヘッドレスト４０１の第二クッション材（不図示）の背面とが、同一方向を向くように、クッション材１１０の底面１１１と、第二クッション材の底面４１１と対向配置させ、ステー１３０の一対の脚部１３２、１３２を第二クッション材の一対の挿通孔４２０、４２０に挿通させると同時に、第二ステー４３０の一対の第二脚部４３２、４３２をクッション材１１０の一対の挿通孔１２０、１２０に挿通させる。 (2-5. Configuration of headrest 101 when accommodated)
The configuration of the headrest 101 when it is housed will be described with reference to FIG. When the headrest 101 is housed in the transport box, it is manufactured in the same specifications as the headrest 101 and is housed in combination with the second headrest 401 having substantially the same shape as the headrest 101.
Specifically, the bottom surface 111 of the cushion material 110 and the second surface so that the front surface of the cushion material 110 of the headrest 101 and the back surface of the second cushion material (not shown) of the second headrest 401 face the same direction. The pair of legs 132, 132 of the stay 130 is inserted into the pair of insertion holes 420, 420 of the second cushion material, and at the same time, the pair of second legs of the second stay 430 are arranged so as to face the bottom surface 411 of the cushion material. The 432 and 432 are inserted into the pair of insertion holes 120 and 120 of the cushion material 110.

この際、クッション材１１０の一対の挿通孔１２０、１２０のうち、ステー１３０の一対の脚部１３２、１３２の間に配置される一方の挿通孔１２０は、ステー１３０の基部１３１まで連通されているため、第二ステー４３０の一対の第二脚部４３２、４３２をクッション材１１０の一対の挿通孔１２０、１２０に挿通させていくと、第二ステー４３０の一対の第二脚部４３２、４３３のうち、一方の挿通孔１２０に挿通される一方の第二脚部４３２の先端は、ステー１３０の基部１３１に当接される。同様に、ステー１３０の一対の脚部１３２、１３２を第二クッション材の一対の挿通孔４２０、４２０に挿通させていくと、ステー１３０の一対の脚部１３２、１３２のうち一方の先端は、第二ステー４３０の第二基部４３１に当接され、互いに位置決めされる。 At this time, of the pair of insertion holes 120 and 120 of the cushion material 110, one of the insertion holes 120 arranged between the pair of legs 132 and 132 of the stay 130 is communicated to the base 131 of the stay 130. Therefore, when the pair of second leg portions 432 and 432 of the second stay 430 are inserted into the pair of insertion holes 120 and 120 of the cushion material 110, the pair of second leg portions 432 and 433 of the second stay 430 The tip of the second leg portion 432 inserted into the insertion hole 120 is brought into contact with the base 131 of the stay 130. Similarly, when the pair of legs 132 and 132 of the stay 130 are inserted into the pair of insertion holes 420 and 420 of the second cushion material, the tip of one of the pair of legs 132 and 132 of the stay 130 becomes It comes into contact with the second base 431 of the second stay 430 and is positioned with each other.

（２−６．効果）
前述のとおり、ヘッドレスト１０１と第二ヘッドレスト４０１とを、互いに、一方の第二ステー４３０（又はステー１３０）の一対の第二脚部３３２、３３２（又は一対の脚部１３２、１３２）を、他方のクッション材１１０（又は第二クッション材４１０）の一対の挿通孔１２０、１２０（又は一対の第二挿通孔４２０、４２０）に挿通させる際に、一方の一対の第二脚部４３２、４３２（又は一対の脚部１３２、１３２）のうち一方の先端が、他方のステー１３０（又は第二ステー４３０）の基部１３１（又は第二基部４３１）に当接されて位置決めされるため、挿通時に、過度な力が加わっても、挿通長さが設定値に制限され、一方の一対の第二脚部４３２、４３２（又は一対の脚部３２、３２）の先端が、他方のクッション材１０（又は第二クッション材４１０）の一対の挿通孔１２０、１２０（又は一対の第二挿通孔４２０、４２０）を突き破って、互いのクッション材１１０（又は第二クッション材４１０）を損傷させることを防止することができる。 (2-6. Effect)
As described above, the headrest 101 and the second headrest 401 have a pair of second leg portions 332, 332 (or a pair of leg portions 132, 132) of one second stay 430 (or stay 130), and the other. When the cushion material 110 (or the second cushion material 410) is inserted into the pair of insertion holes 120, 120 (or the pair of second insertion holes 420, 420), one pair of second leg portions 432, 432 (or Or, since the tip of one of the pair of legs 132, 132) is abutted against the base 131 (or the second base 431) of the other stay 130 (or the second stay 430) and positioned, at the time of insertion, Even if an excessive force is applied, the insertion length is limited to the set value, and the tip of one pair of second leg portions 432, 432 (or pair of leg portions 32, 32) is the other cushioning material 10 (or It is prevented from breaking through the pair of insertion holes 120, 120 (or the pair of second insertion holes 420, 420) of the second cushion material 410) and damaging each other's cushion material 110 (or the second cushion material 410). be able to.

また、挿通時に、一方の一対の第二脚部４３２、４３２（又は一対の脚部１３２、１３２）のうち一方の先端が、他方のステー１３０（又は第二ステー４３０）の基部１３１（又は第二基部４３１）に当接されることを、触覚又は聴覚で感知することができるため、所定位置まで確実に挿通されることができ、組合せ作業を効率に行うことができる。 Further, at the time of insertion, the tip of one of the pair of second leg portions 432 and 432 (or the pair of leg portions 132 and 132) is the base 131 (or the second) of the other stay 130 (or the second stay 430). Since the contact with the two bases 431) can be sensed by touch or hearing, it can be reliably inserted to a predetermined position, and the combination work can be performed efficiently.

さらに、ヘッドレスト１０１は、第二ヘッドレスト４０１と組合された状態で搬送箱に収容されるため、それぞれ別々に収容する場合に比べて、容積を小さくでき、搬送箱に収める数量を増やすことで、搬送コストを低減することできる。 Further, since the headrest 101 is housed in the transport box in a state of being combined with the second headrest 401, the volume can be reduced as compared with the case where the headrest 101 is housed separately, and the number of headrests 101 stored in the transport box can be increased. The cost can be reduced.

＜第三実施形態＞
（３−１．ヘッドレスト２０１の概要）
第三実施形態のヘッドレスト２０１の構成について、図９−図１０を参照して説明する。ヘッドレスト２０１は、乗員の頭部を後方から支持するクッション材２１０と、クッション材２１０を支持する支持部材としてのステー２３０とを備える。また、クッション材２１０は、表皮材２６０（図１０では不図示）で全体が覆われている。
ヘッドレスト２０１は、第一実施形態のヘッドレスト１に対して、ステーの埋設部の形状、及び、クッション材に形成される一対の挿通孔の配置構成が異なる。
以下に、第一実施形態のヘッドレスト１と異なる部分を中心に説明する。 <Third Embodiment>
(3-1. Outline of headrest 201)
The configuration of the headrest 201 of the third embodiment will be described with reference to FIGS. 9-10. The headrest 201 includes a cushion material 210 that supports the occupant's head from behind, and a stay 230 as a support member that supports the cushion material 210. Further, the cushion material 210 is entirely covered with a skin material 260 (not shown in FIG. 10).
The headrest 201 is different from the headrest 1 of the first embodiment in the shape of the embedded portion of the stay and the arrangement configuration of the pair of insertion holes formed in the cushion material.
Hereinafter, a portion different from the headrest 1 of the first embodiment will be mainly described.

（３−２．ステー２３０の構成）
ステー２３０は、基部２３１と、基部２３１の両端それぞれから延びる一対の脚部２３２、２３２とを備える。
以下の説明において、一対の脚部２３２、２３２が直線状に延出される図１０の上下方向を延出方向Ａとし、延出方向Ａに直交し、かつ、一対の脚部２３２、２３２が並んで配置される図１０の左右方向を配列方向Ｂとして説明する。 (3-2. Configuration of stay 230)
The stay 230 includes a base portion 231 and a pair of leg portions 232 and 232 extending from both ends of the base portion 231.
In the following description, the vertical direction in FIG. 10 in which the pair of leg portions 232 and 232 are extended in a straight line is defined as the extension direction A, and the pair of leg portions 232 and 232 are arranged at right angles to the extension direction A. The left-right direction of FIG. 10 arranged in FIG. 10 will be described as the arrangement direction B.

図１０に示すように、ステー２３０は、配列方向Ｂの一方側（図１０の左側）に偏在して配置される。なお、ステー２３０は、クッション材２１０の形状に応じて、任意に位置に配置させることができる。
ステー２３０の一対の脚部２３２、２３２のうち、一方の脚部２３２は、中間部が、配列方向Ｂに沿って、他方の脚部２３２側に傾斜するように屈曲される一方、他方の脚部２３２は、延出方向Ａに直線状に延出され、両脚部２３２、２３２の上端がそれぞれ連結され、基部２３１とされる。 As shown in FIG. 10, the stays 230 are unevenly distributed on one side (left side in FIG. 10) of the arrangement direction B. The stay 230 can be arbitrarily arranged at an arbitrary position according to the shape of the cushion material 210.
Of the pair of legs 232 and 232 of the stay 230, one leg 232 is bent so that the intermediate portion is inclined toward the other leg 232 along the arrangement direction B, while the other leg. The portion 232 extends linearly in the extension direction A, and the upper ends of both leg portions 232 and 232 are connected to each other to form a base portion 231.

（３−３．クッション材２１０の構成）
クッション材２１０の底面２１１には、一対の脚部２３２、２３２の延出方向Ａと平行する方向に延びる一対の挿通孔２２０、２２０が形成されている。一対の挿通孔２２０、２２０は、ステー２３０と同一形状である第三ステー５３０の一対の第二脚部５３２、５３２が挿通可能な形状に形成される。なお、本実施形態では、円形の一対の挿通孔２２０、２２０が形成されている。 (3-3. Configuration of cushion material 210)
A pair of insertion holes 220 and 220 extending in a direction parallel to the extension direction A of the pair of legs 232 and 232 are formed on the bottom surface 211 of the cushion material 210. The pair of insertion holes 220 and 220 are formed so that the pair of second leg portions 532 and 532 of the third stay 530, which has the same shape as the stay 230, can be inserted. In this embodiment, a pair of circular insertion holes 220 and 220 are formed.

具体的には、一対の挿通孔２２０、２２０は、後述するように、第二ヘッドレスト５０１の第二クッション材（不図示）の底面５１１から延出される一対の脚部５３２、５３２の外形と同一形状で、かつ、一対の脚部５３２、５３２の外径と同一または僅かに小さな内径を有する孔形状とされ、クッショ材２１０の底面２１１に開口する一方、クッション材２１０の内部に所定の深さをもって形成される。
なお、一対の挿通孔２２０、２２０は、一対の脚部５３２、５３２の外径よりも大きな孔径としたり、開口端側から底端側に向かって孔径を小さくするなど、任意の孔形状、孔径に設定することができる。 Specifically, the pair of insertion holes 220 and 220 have the same outer shape as the pair of legs 532 and 532 extending from the bottom surface 511 of the second cushion material (not shown) of the second headrest 501, as will be described later. It has a shape and a hole shape having the same or slightly smaller inner diameter as the outer diameter of the pair of legs 532 and 532, and opens to the bottom surface 211 of the cushion material 210 while having a predetermined depth inside the cushion material 210. Is formed with.
The pair of insertion holes 220 and 220 have an arbitrary hole shape and diameter, such as having a hole diameter larger than the outer diameter of the pair of legs 532 and 532, or reducing the hole diameter from the opening end side to the bottom end side. Can be set to.

（３−４．クッション材２１０とステー２３０とが一体化されたヘッドレスト２０１の構成）
ステー２３０は、図１０に示すように、クッション材２１０と一体化されて、クッション材２１０に埋設される部分（埋設部２４０）と、クッション材２１０から延出される部分（延出部２５０）とにより構成される。延出部２５０は、クッション材２１０の底面２１１から延出方向Ａに直線状に延びる一対の脚部２３２、２３２の露出部分である。埋設部２４０は、基部２３１と、延出部２５０における一方の脚部２３２に連続して延びた後、中間部が配列方向Ｂに沿って屈曲され、他方の脚部２３２側に傾斜して、基部２３１の一端まで延びる一方の脚部２３２と、延出部２５０における他方の脚部２３２に連続し、延出方向Ａに直線状に基部２３１の他端まで延びる他方の脚部２３２とを含んで構成される。 (3-4. Configuration of headrest 201 in which cushion material 210 and stay 230 are integrated)
As shown in FIG. 10, the stay 230 includes a portion that is integrated with the cushion material 210 and is embedded in the cushion material 210 (embedded portion 240) and a portion that extends from the cushion material 210 (extended portion 250). Consists of. The extending portion 250 is an exposed portion of a pair of leg portions 232 and 232 extending linearly from the bottom surface 211 of the cushion material 210 in the extending direction A. The buried portion 240 extends continuously to the base portion 231 and one leg portion 232 of the extension portion 250, and then the intermediate portion is bent along the arrangement direction B and inclined toward the other leg portion 232. Includes one leg 232 extending to one end of the base 231 and the other leg 232 continuous with the other leg 232 in the extension 250 and extending linearly in the extension direction A to the other end of the base 231. Consists of.

具体的には、ステー２３０の埋設部２４０は、基部２３１と、クッション材２１０から延出される延出部２５０における一対の脚部２３２、２３２と連続して直線状に延びる一対の第三埋設脚部２４１、２４１と、基部２３１の両端と一対の第三埋設脚部２４１、２４１とを接続する一対の第四埋設脚部２４２、２４２と、により構成される。
ここで、一対の第四埋設脚部２４２、２４２のうち、一方の第四埋設脚部２４２（図１０の左側）は、基部２３１に向かって、他方の第四埋設脚部２４２（図１０の右側）側に傾斜して配置される。換言すると、一方の第四埋設脚部２４２（図１０の左側）は、接続される一方の第三埋設脚部２４１の延出方向Ａに交差する方向に延出される。 Specifically, the buried portion 240 of the stay 230 is a pair of third buried legs extending linearly continuously with the base portion 231 and the pair of leg portions 232 and 232 in the extending portion 250 extending from the cushion material 210. It is composed of portions 241 and 241 and a pair of fourth buried legs 242 and 242 connecting both ends of the base 231 and a pair of third buried legs 241 and 241.
Here, of the pair of fourth buried legs 242 and 242, one fourth buried leg 242 (left side in FIG. 10) faces the base 231 and the other fourth buried leg 242 (in FIG. 10). It is arranged at an angle to the right side). In other words, one of the fourth buried legs 242 (left side in FIG. 10) extends in a direction intersecting the extending direction A of the one connected third buried leg 241.

一方、クッション材２１０の一対の挿通孔２２０、２２０は、ステー２３０の一対の脚部２３２、２３２の配列方向Ｂの投影において、ステー２３０の一対の脚部２３２、２３２と重なり合うように並んで配置される。
また、一対の挿通孔２２０、２２０のうち、一方の挿通孔２２０（図１０の左側）は、ステー２３０の一対の脚部２３２、２３２の間に配置され、他方の挿通孔２２０（図１０の右側）は、ステー２３０の一対の脚部２３２、２３２のうち一方の脚部２３２に対して、一対の脚部２３２、２３２の配列方向Ｂの外側に配置される。 On the other hand, the pair of insertion holes 220 and 220 of the cushion material 210 are arranged side by side so as to overlap the pair of legs 232 and 232 of the stay 230 in the projection of the pair of legs 232 and 232 of the stay 230 in the arrangement direction B. Will be done.
Further, of the pair of insertion holes 220 and 220, one insertion hole 220 (left side in FIG. 10) is arranged between the pair of legs 232 and 232 of the stay 230, and the other insertion hole 220 (in FIG. 10). The right side) is arranged outside the arrangement direction B of the pair of legs 232 and 232 with respect to one of the pair of legs 232 and 232 of the stay 230.

さらに、一方の挿通孔２２０（図１０の左側）は、一対の脚部２３２、２３２の配列方向Ｂにおいて、ステー２３０の一対の第四埋設脚部２４２、２４２のうち、一対の脚部３２３、２３２（一対の第三埋設脚部２４１、２４１）の延出方向Ａに交差する方向に延出される一方の第四埋設脚部２４２（図１０の左側）が接続される基部２３１と、一方の第三埋設脚部２４１との間に配置される。換言すると、ステー２３０の一方の第四埋設脚部２４２（図１０の左側）は、一対の挿通孔２２０、２２０のうち、ステー２３０の一対の第三埋設脚部２４１、２４１の間に配置される一方の挿通孔２２０（図１０の左側）の延出方向Ａの延出延長線上に配置される。 Further, one insertion hole 220 (on the left side in FIG. 10) has a pair of leg portions 323 among the pair of fourth embedded leg portions 242 and 242 of the stay 230 in the arrangement direction B of the pair of leg portions 232 and 232. One of the base 231 to which one of the fourth buried legs 242 (left side in FIG. 10) extending in the direction intersecting the extending direction A of 232 (a pair of third buried legs 241 and 241) is connected. It is arranged between the third buried leg portion 241 and the third buried leg portion 241. In other words, one of the fourth buried legs 242 of the stay 230 (left side in FIG. 10) is arranged between the pair of third buried legs 241 and 241 of the stay 230 among the pair of insertion holes 220 and 220. It is arranged on the extension extension line of the extension direction A of one of the insertion holes 220 (left side in FIG. 10).

ここで、一対の挿通孔２２０、２２０は、ステー２３０の一対の脚部２３２、２３２の延出方向Ａと平行する方向に延び、ステー１３０の一対の脚部１３２、１３２の間に配置される一方の挿通孔１２０の底端は、ステー２３０の一方の第四埋設脚部２４２に当接されるまで延出される。換言すると、一方の挿通孔２２０は、クッション材２１０の底面２１１の外部と、ステー２３０一方の第四埋設脚部２４２とを連通させる。
また、図１０に示すように、一方の挿通孔２２０（図１０の左側）は、その底端の一部分（図１０の左上端）が、ステー１３０の一方の第四埋設脚部２４２（図１０の左側）まで連通される。なお、一方の挿通孔２２０は、その底端の少なくとも一部分が一方の第四埋設脚部２４２まで連通されていればよい。 Here, the pair of insertion holes 220 and 220 extend in a direction parallel to the extension direction A of the pair of legs 232 and 232 of the stay 230, and are arranged between the pair of legs 132 and 132 of the stay 130. The bottom end of one insertion hole 120 extends until it comes into contact with one of the fourth buried legs 242 of the stay 230. In other words, one of the insertion holes 220 communicates the outside of the bottom surface 211 of the cushion material 210 with the fourth embedded leg portion 242 on one side of the stay 230.
Further, as shown in FIG. 10, one of the insertion holes 220 (left side in FIG. 10) has a part of the bottom end (upper left end in FIG. 10) of the stay 130, and one of the fourth buried legs 242 (FIG. 10). It communicates to the left side of). It is sufficient that at least a part of the bottom end of the one insertion hole 220 communicates with the fourth embedded leg portion 242.

なお、第一実施形態と同様に、ヘッドレスト２０１は、クッション材２１０の底面２１１を被覆する第一表皮部材（不図示）を備え、第一表皮部材（不図示）には、クッション材２１０の一対の挿通孔２２０、２２０に対応する位置に、一対の挿通孔２２０、２２０の孔径よりも小さい開口径をもった一対の穴（不図示）が形成され、一対の穴（不図示）の周縁部が一対の挿通孔２２０、２２０の孔内部に折り返されて、一対の挿通孔２２０、２２０の開口端縁が被覆されている。本構成により、クッション材２１０の底面２１１に露出される一対の挿通孔２２０、２２０の意匠性を改善させることができる。 As in the first embodiment, the headrest 201 includes a first skin member (not shown) that covers the bottom surface 211 of the cushion material 210, and the first skin member (not shown) has a pair of cushion materials 210. A pair of holes (not shown) having an opening diameter smaller than the hole diameters of the pair of insertion holes 220, 220 are formed at positions corresponding to the insertion holes 220, 220, and the peripheral edges of the pair of holes (not shown). Is folded back inside the pair of insertion holes 220, 220 to cover the open edge of the pair of insertion holes 220, 220. With this configuration, the design of the pair of insertion holes 220 and 220 exposed on the bottom surface 211 of the cushion material 210 can be improved.

（３−５．ヘッドレスト２０１の収容時の構成）
ヘッドレスト２０１の収容時の構成について、図１１を用いて説明する。ヘッドレスト２０１は、搬送箱に収容させる際は、ヘッドレスト２０１と同一仕様で製造され、ヘッドレスト２０１と略同一形状とされる第二ヘッドレスト５０１と組合せて収容される。
具体的には、ヘッドレスト２０１のクッション材２１０の正面と、第二ヘッドレスト５０１の第二クッション材（不図示）の背面とが、同一方向を向くように、クッション材２１０の底面２１１と、第二クッション材の底面５１１と対向配置させ、ステー２３０の一対の脚部２３２、２３２を第二クッション材５１０の一対の挿通孔５２０、５２０に挿通させると同時に、第二ステー５３０の一対の第二脚部５３２、５３２をクッション材２１０の一対の挿通孔２２０、２２０に挿通させる。 (3-5. Configuration of headrest 201 when accommodated)
The configuration of the headrest 201 when it is housed will be described with reference to FIG. When the headrest 201 is housed in the transport box, it is manufactured in the same specifications as the headrest 201 and is housed in combination with the second headrest 501 which has substantially the same shape as the headrest 201.
Specifically, the bottom surface 211 of the cushion material 210 and the second surface so that the front surface of the cushion material 210 of the headrest 201 and the back surface of the second cushion material (not shown) of the second headrest 501 face the same direction. The pair of legs 232 and 232 of the stay 230 are inserted into the pair of insertion holes 520 and 520 of the second cushion material 510, and at the same time, the pair of second legs of the second stay 530 are arranged so as to face the bottom surface 511 of the cushion material. The portions 532 and 532 are inserted into the pair of insertion holes 220 and 220 of the cushion material 210.

この際、クッション材２１０の一対の挿通孔２２０、２２０のうち、ステー２３０の一対の脚部２３２、２３２の間に配置される一方の挿通孔２２０は、ステー２３０の一方の第四埋設脚部２４２まで連通されているため、第二ステー５３０の一対の第二脚部５３２、５３２をクッション材２１０の一対の挿通孔２２０、２２０に挿通させていくと、第二ステー５３０の一対の第二脚部５３２、５３３のうち、クッション材２１０の一方の挿通孔２２０に挿通される一方の第二脚部５３２の先端は、ステー２３０の一方の第四埋設脚部２４２に当接される。同様に、ステー２３０の一対の脚部２３２、２３２を第二クッション材の一対の挿通孔５２０、５２０に挿通させていくと、ステー２３０の一対の脚部２３２、２３２のうち一方の先端は、第二ステー５３０の埋設部（不図示）に当接され、互いに位置決めされる。 At this time, of the pair of insertion holes 220 and 220 of the cushion material 210, one of the insertion holes 220 arranged between the pair of legs 232 and 232 of the stay 230 is the fourth embedded leg of the stay 230. Since it is communicated up to 242, when the pair of second leg portions 532 and 532 of the second stay 530 are inserted into the pair of insertion holes 220 and 220 of the cushion material 210, the pair of second legs of the second stay 530 Of the legs 532 and 533, the tip of the second leg 532 that is inserted into one of the insertion holes 220 of the cushion material 210 is in contact with the fourth embedded leg 242 of the stay 230. Similarly, when the pair of legs 232 and 232 of the stay 230 are inserted into the pair of insertion holes 520 and 520 of the second cushion material, the tip of one of the pair of legs 232 and 232 of the stay 230 becomes It comes into contact with the buried portion (not shown) of the second stay 530 and is positioned with each other.

（３−６．効果）
前述のとおり、ヘッドレスト２０１と第二ヘッドレスト５０１とを、互いに、一方の第二ステー５３０（又はステー２３０）の一対の第二脚部５３２、５３２（又は一対の脚部２３２、２３２）を、他方のクッション材２１０（又は第二クッション材５１０）の一対の挿通孔２２０、２２０（又は一対の第二挿通孔５２０、５２０）に挿通させる際に、一方の一対の第二脚部５３２、５３２（又は一対の脚部２３２、２３２）のうち一方の先端が、他方のステー２３０（又は第二ステー５３０）の一方の第四埋設脚部２４２（又は埋設部（不図示））に当接されて位置決めされるため、挿通時に、過度な力が加わっても、挿通長さが設定値に制限され、一方の一対の第二脚部５３２、５３２（又は一対の脚部３２、３２）の先端が、他方のクッション材２１０（又は第二クッション材５１０）の一対の挿通孔２２０、２２０（又は一対の第二挿通孔５２０、５２０）を突き破って、互いのクッション材２１０（又は第二クッション材５１０）を損傷させることを防止することができる。 (3-6. Effect)
As described above, the headrest 201 and the second headrest 501 have a pair of second leg portions 532, 532 (or a pair of leg portions 232, 232) of one second stay 530 (or stay 230), and the other. When the cushion material 210 (or the second cushion material 510) is inserted into the pair of insertion holes 220, 220 (or the pair of second insertion holes 520, 520), one pair of second leg portions 532, 532 (or Or, the tip of one of the pair of legs 232, 232) is in contact with the fourth embedded leg 242 (or the embedded portion (not shown)) of the other stay 230 (or the second stay 530). Since it is positioned, the insertion length is limited to the set value even if an excessive force is applied during insertion, and the tips of one pair of second legs 532 and 532 (or a pair of legs 32, 32) , The pair of insertion holes 220, 220 (or the pair of second insertion holes 520, 520) of the other cushion material 210 (or the second cushion material 510) are penetrated, and the cushion material 210 (or the second cushion material 510) of each other is penetrated. ) Can be prevented from being damaged.

また、挿通時に、一方の一対の第二脚部５３２、５３２（又は一対の脚部２３２、２３２）のうち一方の先端が、他方のステー２３０（又は第二ステー５３０）の一方の第四埋設脚部２４２（又は埋設部（不図示））に当接されることを、触覚又は聴覚で感知することができるため、所定位置まで確実に挿通されることができ、組合せ作業を効率に行うことができる。 Further, at the time of insertion, the tip of one of the pair of second leg portions 532, 532 (or pair of leg portions 232, 232) is embedded in the fourth of the other stay 230 (or second stay 530). Since it is possible to sense the contact with the leg portion 242 (or the buried portion (not shown)) by touch or hearing, it can be reliably inserted to a predetermined position, and the combination work can be performed efficiently. Can be done.

さらに、ヘッドレスト２０１は、第二ヘッドレスト５０１と組合された状態で搬送箱に収容されるため、それぞれ別々に収容する場合に比べて、容積を小さくでき、搬送箱に収める数量を増やすことで、搬送コストを低減することできる。
（３−７．第三実施形態の変形例） Further, since the headrest 201 is housed in the transport box in a state of being combined with the second headrest 501, the volume can be reduced as compared with the case where the headrest 201 is housed separately, and the number of headrests 201 stored in the transport box can be increased. The cost can be reduced.
(3-7. Modified example of the third embodiment)

第三実施形態のヘッドレスト２０１は、ステー２３０の一対の第四埋設脚部２４２、２４２のうち、一方の第四埋設脚部２４２（図１０の左側）を、接続される一方の第三埋設脚部２４１の延出方向Ａに交差する方向に延出される一方、クッション材２１０の一対の挿通孔２２０、２２０のうち、ステー２３０の一対の第三埋設脚部２４１、２４１の間に配置される一方の挿通孔２２０（図１０の左側）を、ステー２３０一方の第四埋設脚部２４２まで連通させる構成としたが、一対の第四埋設脚部２４２、２４２のうち、他方の第四埋設脚部２４２（図１０の右側）を、接続される他方の第三埋設脚部２４１の延出方向Ａに交差する方向に延出させる構成としてもよい。 In the headrest 201 of the third embodiment, of the pair of fourth buried legs 242 and 242 of the stay 230, one of the fourth buried legs 242 (left side in FIG. 10) is connected to the third buried leg. While extending in a direction intersecting the extending direction A of the portion 241, it is arranged between the pair of third embedded legs 241 and 241 of the stay 230 among the pair of insertion holes 220 and 220 of the cushion material 210. One of the insertion holes 220 (left side in FIG. 10) is configured to communicate with the fourth buried leg 242 of one of the stays 230, but the fourth buried leg of the pair of fourth buried legs 242 and 242 is used. The portion 242 (on the right side in FIG. 10) may be configured to extend in a direction intersecting the extending direction A of the other third buried leg portion 241 to be connected.

また、クッション材２１０の一対の挿通孔２２０、２２０のうち、一対の第三埋設脚部２４１、２４１（一対の脚部２３２、２３２）の配列方向Ｂの外側に配置される他方の挿通孔２２０（図１０の右側）に隣接する第四埋設脚部２４２（図１０の右側）を、接続される第三埋設脚部２４１の延出方向Ａに交差する方向に延出させ、他方の挿通孔２２０（図１０の右側）が当接させる構成としてもよい。 Further, of the pair of insertion holes 220 and 220 of the cushion material 210, the other insertion hole 220 arranged outside the arrangement direction B of the pair of third embedded legs 241 and 241 (pair of legs 232 and 232). The fourth buried leg portion 242 (right side in FIG. 10) adjacent to (the right side in FIG. 10) is extended in a direction intersecting the extending direction A of the third buried leg portion 241 to be connected, and the other insertion hole is inserted. The 220 (right side in FIG. 10) may be brought into contact with each other.

また、ステー２３０の一対の第四埋設脚部２４２、２４２の両方を、それぞれ、接続される一方の第三埋設脚部２４１の延出方向Ａに交差する同方向に延出される一方、クッション材２１０の一対の挿通孔２２０、２２０の両方を、それぞれ、延出方向Ａの延出延長線上に配置される一対の第三埋設脚部２４１、２４１まで連通させる構成としてもよい。 Further, both of the pair of fourth buried legs 242 and 242 of the stay 230 are extended in the same direction intersecting the extending direction A of the third buried leg 241 to be connected, while the cushioning material. Both of the pair of insertion holes 220 and 220 of 210 may be communicated with each other to the pair of third embedded legs 241 and 241 arranged on the extension extension line in the extension direction A, respectively.

さらに、上記の各実施形態において、一対の挿通孔２２０、２２０の底端よりも基部２３１側に配置される一対の第三埋設脚部２４１、２４１を、第一実施形態のように、一対の第三埋設脚部２４１、２４１（一対の脚部２３２、２３２）の配列方向Ｂの断面視において、延出方向Ａに交差する方向に折り曲げられた、なす角の大きなＬ字形状のステーに適用することができる。 Further, in each of the above embodiments, the pair of third embedded legs 241 and 241 arranged on the base 231 side of the bottom ends of the pair of insertion holes 220 and 220 are paired as in the first embodiment. Applicable to L-shaped stays with large angles that are bent in the direction intersecting the extension direction A in the cross-sectional view of the arrangement direction B of the third buried legs 241 and 241 (pair of legs 232 and 232). can do.

１,１０１,２０１：ヘッドレスト
１０,１１０,２１０：クッション材
１１,１１１，２１１,３１１,４１１,５１１：一面
２０、２０,１２０、１２０,２２０、２２０：一対の挿通孔
３０,１３０，２３０：ステー
３１,１３１,２３１：基部
３２、３２,１３２、１３２、２３２,２３２、２３２：一対の脚部
４０,１４０,２４０：埋設部
４１、４１：一対の第一埋設脚部
４２、４２：一対の第二埋設脚部
５０,１５１,２５１：延出部
６０,１６０,２６０：表皮材
６１：第一表皮部材
６２、６２：一対の穴
２４１、２４１：一対の第三埋設脚部
２４２、２４２：一対の第四埋設脚部
３０１,４０１,５０１：第二ヘッドレスト
３２０、３２０,４２０、４２０,５２０、５２０：一対の第二挿通孔
３３０,４３０,５３０：第二ステー
３３１,４３１,５３１：第二基部
３３２、３３２,４３２、４３２,５３２、５３２：一対の第二脚部
延出方向：Ａ
配列方向：Ｂ 1,101,201: Headrest 10,110,210: Cushion material 11,111,211,311,411,511: One side 20, 20,120, 120,220, 220: Pair of insertion holes 30,130,230: Stays 31,131,231: Bases 32, 32, 132, 132, 232, 232, 232: Pair of legs 40,140,240: Embedded portions 41, 41: Pair of first embedded legs 42, 42: Pair Second buried legs 50,151,251: Extension 60,160,260: Skin material 61: First skin member 62, 62: Pair of holes 241, 241: Pair of third buried legs 242,242 : Pair of fourth buried legs 301,401,501: Second headrest 320, 320,420, 420,520,520: Pair of second insertion holes 330,430,530: Second stay 331,431,531: Second base 332, 332, 432, 432, 532, 532: Pair of second legs extension direction: A
Arrangement direction: B

Claims

Cushion material and
A stay having a base and a pair of legs extending from both ends of the base and supporting the cushioning material,
It is a headrest equipped with
The stay is composed of the base portion, a part of the leg portions, a buried portion embedded in the cushion material, and the rest of the leg portion, and extends from one surface of the cushion material. With an extension part to be put out,
On the one surface of the cushion material, a pair of insertion holes through which a pair of second legs of the second stay having the same shape as the stay can be inserted are oriented in a direction parallel to the extending direction of the pair of legs. Has been formed and
At least one of the pair of insertion holes is a headrest that communicates with the embedded portion of the stay.

The buried portion of the stay is a pair of second buried portions connecting the base portion, a pair of first buried leg portions continuous with the extending portion, and both ends of the base portion and the pair of the first buried leg portions. It consists of legs and
The base is arranged so as to be separated from the pair of the first embedded legs in a direction orthogonal to the arrangement direction of the pair of the first embedded legs.
The pair of the second buried legs are arranged so as to intersect in the extending direction of the pair of the first buried legs.
The pair of insertion holes are arranged so as to overlap each other with the pair of the first embedded legs in the projection in the direction orthogonal to the arrangement direction of the pair of the first embedded legs.
The headrest according to claim 1, wherein each of the pair of insertion holes communicates with the embedded portion of the stay.

The headrest according to claim 2, wherein each of the pair of the insertion holes communicates with the second embedded leg of the stay.

One of the pair of insertion holes is arranged between the pair of legs of the stay, while the other insertion hole of the pair of insertion holes is one leg of the pair of legs. On the outside of the pair of legs in the arrangement direction,
The pair of insertion holes are arranged so as to overlap each other in the projection of the pair of legs in the arrangement direction.
The headrest according to claim 1, wherein the one insertion hole of the pair of the insertion holes communicates with the embedded portion of the stay.

The headrest according to claim 4, wherein the one insertion hole of the pair of the insertion holes communicates with the base portion of the stay.

The buried portion of the stay is a pair of fourth buried portions connecting the base portion, a pair of third buried leg portions continuous with the extending portion, and both ends of the base portion and the pair of the third buried leg portions. It consists of legs and
One of the fourth buried legs of the pair of the fourth buried legs is an extension of the third buried leg of the pair of the third buried legs to which the fourth buried leg is connected. Arranged to intersect in the outgoing direction,
The headrest according to claim 4, wherein the one insertion hole of the pair of the insertion holes communicates with the fourth embedded leg portion of the one.

The buried portion of the stay is a pair of fourth buried portions connecting the base portion, a pair of third buried leg portions continuous with the extending portion, and both ends of the base portion and the pair of the third buried leg portions. It consists of legs and
Of the pair of the fourth buried legs, one of the fourth buried legs adjacent to the other insertion hole of the pair of the insertion holes is the fourth of the pair of the third buried legs. The buried legs are arranged so as to intersect in the extending direction of the third buried leg to which one is connected.
The headrest according to claim 4, wherein the other insertion hole of the pair of the insertion holes communicates with the fourth embedded leg portion of the one.

The headrest includes a first skin member that covers the one side of the cushioning material.
A pair of holes are formed in the first skin member at positions corresponding to the pair of insertion holes of the cushion material.
The headrest according to any one of claims 1-7, wherein the peripheral edges of the pair of the holes are folded back into the holes of the pair of the insertion holes to cover the open end edges of the pair of the insertion holes.