JP2011131840A - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
JP2011131840A
JP2011131840A JP2009295214A JP2009295214A JP2011131840A JP 2011131840 A JP2011131840 A JP 2011131840A JP 2009295214 A JP2009295214 A JP 2009295214A JP 2009295214 A JP2009295214 A JP 2009295214A JP 2011131840 A JP2011131840 A JP 2011131840A
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seat
dorsal
spring
reclining mechanism
bracket
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JP2011131840A5 (en
JP5537923B2 (en
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Isao Kawashima
功 川島
Yutaka Kizawa
豊 木澤
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TS Tech Co Ltd
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TS Tech Co Ltd
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  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enlarge an attaching space of a spring for reclining and returning a backrest. <P>SOLUTION: The spring 40 for energizing the backrest seat 3 to rotate in a front direction when a reclining mechanism 4 becomes an unlocking state is provided between a seat 2 and a backrest seat 3. The spring 40 includes a spiral part 41 which spirals one or more turns at its center and a backrest side engaging part 43 at an end of the spiral part 41 engages with a backrest side engaging body 42 of a backrest side bracket 10 and a seat side engaging part 48 of another end of the spiral part 41 engages with a seat side engaging body 47. In the vehicle seat, the reclining mechanism 4 is arranged between a longitudinal plate 44 of the backrest side bracket 10 and a longitudinal plate 49 of the seat side bracket 11 and, as for the spiral part 41 of the spring 40, its shaft center direction is arranged to be substantially in parallel with the shaft center direction of a rotation central axis 12, and the spiral part 41 of the spring 40 and the reclining mechanism 4 partially overlap with each other in the shaft center direction of the spiral part 41. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、車両用シートに係るものである。   The present invention relates to a vehicle seat.

従来、背凭シートの傾斜角度を調節するリクライニング機構は、背凭側ブラケットの外側に座席側ブラケットを位置させ、背凭側ブラケットと座席側ブラケットの間にリクライニング機構を設け、座席側ブラケットの外側にリクライニング機構がアンロック状態になると背凭シートを前方回動するように付勢するバネを設けた構成であり、このような車両用シートは公知である(特許文献1)。   Conventionally, the reclining mechanism that adjusts the inclination angle of the dorsal seat is such that the seat side bracket is located outside the dorsal side bracket, and the reclining mechanism is provided between the dorsal side bracket and the seat side bracket, and the outside of the seat side bracket. In addition, when the reclining mechanism is unlocked, a spring is provided to urge the seat back so as to rotate forward. Such a vehicle seat is known (Patent Document 1).

特開2008−44559号公報JP 2008-44559 A

前記公知例は、リクライニング機構の係合ギヤを背凭側ブラケットと座席側ブラケットの一方に、リクライニング機構のロック部材を背凭側ブラケットと座席側ブラケットの他方に夫々取付ける必要から、背凭側ブラケットと座席側ブラケットの間にリクライニング機構を配置するが、別途、背凭側ブラケットと座席側ブラケットとの両者に取付ける背凭シートを前方回動させるバネを設けるスペースはなく、座席側ブラケットの外側に設けてた。
そのため、公知例では、バネが座席側ブラケットの外面側に位置して、表皮等の他の構成部材との接触等の干渉が生じ、作動が不安定になる虞があるという課題がある。
また、バネを座席側ブラケットの外面側に設けているので、リクライニング機構を設ける設置スペースの左右幅が大きくなるという課題がある。
そこで、本願は、バネの取付を工夫し、バネと他の部材との干渉を避けると共に、リクライニング機構の取付部分の左右幅を小さくしたものである。
The known example requires that the engaging gear of the reclining mechanism is attached to one of the backside bracket and the seat side bracket, and the locking member of the reclining mechanism is attached to the other of the backside bracket and the seat side bracket. The reclining mechanism is placed between the seat side bracket and the seat side bracket, but there is no space to provide a spring for rotating the back seat attached to both the back side bracket and the seat side bracket. It was provided.
Therefore, in the known example, there is a problem that the spring is positioned on the outer surface side of the seat-side bracket, and interference such as contact with other structural members such as the skin may occur, resulting in unstable operation.
Moreover, since the spring is provided on the outer surface side of the seat side bracket, there is a problem that the right and left width of the installation space in which the reclining mechanism is provided is increased.
Therefore, the present application devises the attachment of the spring, avoids interference between the spring and other members, and reduces the lateral width of the attachment portion of the reclining mechanism.

本発明は、座席シート2に背凭シート3をリクライニング機構4を介して回動中心軸12中心に回動自在で傾斜角度調節自在に取付け、前記リクライニング機構4は係合ギヤ22に係脱するロック部材24を有して構成し、前記座席シート2と前記背凭シート3との間には前記リクライニング機構4がアンロック状態になると前記背凭シート3を前方回動させるように付勢するバネ40を設け、該バネ40は、中心に一巻き以上渦巻く渦巻き部41を有して形成し、渦巻き部41の一端の背凭側係合部43は前記背凭シート3の背凭側ブラケット10の背凭側係止体42に係止し、前記渦巻き部41の他端の座席側係合部48は座席側ブラケット11の座席側係止体47に係止し、前記リクライニング機構4は、前記背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49との間に設け、前記バネ40の渦巻き部41はその軸心方向を回動中心軸12の軸心方向と略平行にし、前記バネ40の渦巻き部41と前記リクライニング機構4とは前記渦巻き部41の軸心方向において互いに一部重なる構成とした車両用シートとしたものである。
本発明は、前記バネ40の渦巻き部41の軸心方向の幅と前記リクライニング機構4の前記渦巻き部41の軸心方向の厚さとは、前記渦巻き部41の幅より前記リクライニング機構4の厚さを厚くした車両用シートとしたものである。
本発明は、前記背凭側係止体42は、背凭側ブラケット10の縦板部44の外面に取付ける取付部45と前記背凭側係合部43が係合する係止部46によりL型形状に形成し、前記座席側係止体47は、座席側ブラケット11の縦板部49の内面に取付ける取付部50と座席側係合部48が係合する係止部51により正面視逆さL型形状に形成し、前記背凭側係止体42の係止部46は外側に突出し、前記座席側係止体47の係止部51は内側に突出し、前記係止部46と前記係止部51は前記リクライニング機構4を挟んで対峙する構成とした車両用シートとしたものである。
本発明は、前記バネ40の背凭側係合部43は、渦巻き部41の上部外周に形成し、バネ40の座席側係合部48は回動中心軸12の軸心を挟んで前記背凭側係合部43と略対峙した渦巻き部41の下部内周に形成した車両用シートとしたものである。
本発明は、前記背凭側係止体42は、背凭側ブラケット10の縦板部44の外面に取付ける取付部45と前記背凭側係合部43が係合する係止部46により形成し、前記座席側係止体47は、座席側ブラケット11の縦板部49の内面に取付ける取付部50と座席側係合部48が係合する係止部51により形成し、前記背凭側係止体42は係止部46に対して取付部45を上側に位置させて背凭側ブラケット10の縦板部44に固定し、前記座席側係止体47は係止部51に対して取付部50を下側に位置させて座席側ブラケット11の縦板部49に固定した車両用シートとしたものである。
本発明は、前記リクライニング機構4は、正円形の内周面に係合ギヤ22を形成したケース内に、前記係合ギヤ22に係合離脱するロック部材24を設けて構成した車両用シートとしたものである。
In the present invention, a backrest seat 3 is attached to a seat seat 2 via a reclining mechanism 4 so as to be rotatable about a rotation center axis 12 and adjustable in inclination angle, and the reclining mechanism 4 is engaged with and disengaged from an engagement gear 22. A lock member 24 is provided, and between the seat seat 2 and the dorsal seat 3, when the reclining mechanism 4 is unlocked, the back seat 3 is urged to rotate forward. A spring 40 is provided, and the spring 40 is formed to have a spiral portion 41 that spirals one or more turns in the center, and the dorsal side engaging portion 43 at one end of the spiral portion 41 is a dorsal side bracket of the dorsal seat 3. 10, the seat-side engagement portion 48 at the other end of the spiral portion 41 is engaged with the seat-side engagement body 47 of the seat-side bracket 11, and the reclining mechanism 4 is , The dorsal bracket 10 The spiral portion 41 of the spring 40 is provided between the plate portion 44 and the vertical plate portion 49 of the seat side bracket 11 so that the axial direction of the spring 40 is substantially parallel to the axial direction of the rotation center shaft 12. The spiral part 41 and the reclining mechanism 4 are vehicle seats configured to partially overlap each other in the axial direction of the spiral part 41.
In the present invention, the width in the axial direction of the spiral portion 41 of the spring 40 and the thickness in the axial direction of the spiral portion 41 of the reclining mechanism 4 are the thickness of the reclining mechanism 4 based on the width of the spiral portion 41. The vehicle seat is made thicker.
In the present invention, the dorsal side locking body 42 is formed by the mounting portion 45 attached to the outer surface of the vertical plate portion 44 of the dorsal side bracket 10 and the locking portion 46 engaged with the dorsal side engaging portion 43. The seat-side locking body 47 is formed in a mold shape, and the front-side view is inverted by the mounting portion 50 that is attached to the inner surface of the vertical plate portion 49 of the seat-side bracket 11 and the locking portion 51 that the seat-side engaging portion 48 engages. The locking portion 46 of the dorsal side locking body 42 protrudes outward, the locking portion 51 of the seat side locking body 47 protrudes inward, and the locking portion 46 and the engagement portion 46 are formed in an L shape. The stopping portion 51 is a vehicle seat configured to confront the reclining mechanism 4.
In the present invention, the dorsal side engaging portion 43 of the spring 40 is formed on the outer periphery of the upper portion of the spiral portion 41, and the seat side engaging portion 48 of the spring 40 is sandwiched between the axis of the rotation center shaft 12. The vehicular seat is formed on the inner periphery of the lower part of the spiral portion 41 substantially opposite to the heel side engaging portion 43.
In the present invention, the dorsal side locking body 42 is formed by an attachment portion 45 that is attached to the outer surface of the vertical plate portion 44 of the dorsal side bracket 10 and a locking portion 46 that engages the dorsal side engaging portion 43. The seat-side locking body 47 is formed by a mounting portion 50 that is attached to the inner surface of the vertical plate portion 49 of the seat-side bracket 11 and a locking portion 51 that engages with the seat-side engaging portion 48, and The locking body 42 is fixed to the vertical plate portion 44 of the dorsal bracket 10 with the mounting portion 45 positioned above the locking portion 46, and the seat side locking body 47 is fixed to the locking portion 51. The vehicle seat is fixed to the vertical plate portion 49 of the seat side bracket 11 with the mounting portion 50 positioned on the lower side.
According to the present invention, the reclining mechanism 4 includes a vehicle seat configured by providing a lock member 24 that engages and disengages with the engagement gear 22 in a case in which the engagement gear 22 is formed on an inner circumferential surface of a regular circle. It is a thing.

請求項1の発明では、リクライニング機構4を、背凭側ブラケット10と座席側ブラケット11との間に設け、バネ40の渦巻き部41とリクライニング機構4とを互いに一部重なる構成としているので、リクライニング機構4およびバネ40の取付部分の左右幅を小さくでき、また、バネ40を座席側ブラケット11の内面側に位置させることができて、表皮等の他の構成部材との接触等の干渉を避けられ、作動の確実性を向上させることができる。
請求項2の発明では、渦巻き部41の幅よりリクライニング機構4の厚さを厚くしているので、渦巻き部41の周縁が背凭側ブラケット10の外面と座席側ブラケット11の内面とに接触せず、バネ40を座席側ブラケット11の内面側に位置させる構成でありながら作動の確実性を担保できる。
請求項3の発明では、背凭側係止体42の係止部46と座席側係止体47の係止部51との間にリクライニング機構4およびバネ40を配置でき、バネ40を座席側ブラケット11の内面側に位置させることができてリクライニング機構4の取付部分の左右幅を小さくできる。
請求項4の発明では、バネ40の背凭側係合部43と座席側係合部48とを上下に配置しているので、係止部46と係止部51とを左右方向で互いに重ねられ、リクライニング機構4の取付スペースを小さくする。
請求項5の発明では、バネ40の渦巻き部41の上方に背凭側係止体42を位置させることができ、渦巻き部41の下方に座席側係止体47を位置させることができ、取付部45および取付部50がバネ40の渦巻き部41と重ならず、回動中心軸12の軸心方向のリクライニング機構4の取付スペースを小さくする。
請求項6の発明では、バネ40の渦巻き部41とリクライニング機構4とが互いに重なる部分を大きくでき、一層、リクライニング機構4およびバネ40の取付部分の左右幅を小さくできる。
In the invention of claim 1, the reclining mechanism 4 is provided between the dorsal bracket 10 and the seat bracket 11, and the spiral portion 41 of the spring 40 and the reclining mechanism 4 partially overlap each other. The left and right widths of the mounting portion of the mechanism 4 and the spring 40 can be reduced, and the spring 40 can be positioned on the inner surface side of the seat side bracket 11 to avoid interference such as contact with other components such as the skin. Therefore, the certainty of operation can be improved.
In the invention of claim 2, since the thickness of the reclining mechanism 4 is made larger than the width of the spiral portion 41, the periphery of the spiral portion 41 is in contact with the outer surface of the dorsal bracket 10 and the inner surface of the seat bracket 11. However, it is possible to ensure the reliability of the operation while the spring 40 is positioned on the inner surface side of the seat side bracket 11.
In the invention of claim 3, the reclining mechanism 4 and the spring 40 can be disposed between the locking portion 46 of the dorsal-side locking body 42 and the locking portion 51 of the seat-side locking body 47, and the spring 40 is placed on the seat side. It can be located on the inner surface side of the bracket 11, and the left and right width of the mounting portion of the reclining mechanism 4 can be reduced.
In the invention of claim 4, since the dorsal-side engaging portion 43 and the seat-side engaging portion 48 of the spring 40 are arranged vertically, the engaging portion 46 and the engaging portion 51 overlap each other in the left-right direction. Therefore, the mounting space for the reclining mechanism 4 is reduced.
In the invention of claim 5, the dorsal side locking body 42 can be positioned above the spiral portion 41 of the spring 40, and the seat side locking body 47 can be positioned below the spiral portion 41. The portion 45 and the attachment portion 50 do not overlap with the spiral portion 41 of the spring 40, and the attachment space of the reclining mechanism 4 in the axial direction of the rotation center shaft 12 is reduced.
In the invention of claim 6, the portion where the spiral portion 41 of the spring 40 and the reclining mechanism 4 overlap each other can be increased, and the left and right widths of the attachment portions of the reclining mechanism 4 and the spring 40 can be further reduced.

車両用シートの概略側面図。The schematic side view of a vehicle seat. リクライニング機構の取付概略状態斜視図。The attachment outline state perspective view of a reclining mechanism. リクライニング機構の分解斜視図。The disassembled perspective view of a reclining mechanism. 同アンロック状態側面図。The unlocked side view. 同アンロック状態側面図。The unlocked side view. リクライニング機構取付部分の概略側面図。The schematic side view of a reclining mechanism attachment part. 同断面図。FIG. 他の実施例の断面図。Sectional drawing of another Example.

本発明の一実施例を図面により説明すると、1は車両用シートであり、車両用シート1は、座席シート2に背凭シート3をリクライニング機構4を介して前後方向に傾斜角度調節自在に取付ける(理解を容易にするため、前後または左右あるいは内外や正面・背面等の方向を示して説明するが、これにより構成は限定されない)。5はスライドレールである。
背凭シート3には背凭側ブラケット10を設け、背凭側ブラケット10には前記座席シート2側に設けた座席側ブラケット11を回動中心軸12により回動自在に取付ける。13は前記回動中心軸12を挿通する背凭側ブラケット10の透孔、14は前記回動中心軸12を挿通する座席側ブラケット11の透孔である。
背凭側ブラケット10と座席側ブラケット11との間に前記リクライニング機構4を設ける。リクライニング機構4の構成は任意であり、一例を示すと、一方側ケース20の内周面には係合ギヤ22を形成し、一方側ケース20内に前記係合ギヤ22に係合離脱するロックギヤ部23を有する摺動ロック部材24を設ける。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a vehicle seat. (For the sake of easy understanding, description will be made by showing directions such as front and rear, right and left, inside / outside, front and back, etc., but the configuration is not limited thereby). 5 is a slide rail.
A back bracket 10 is provided on the back seat 3, and a seat side bracket 11 provided on the seat seat 2 side is rotatably attached to the back bracket 10 by a rotation center shaft 12. Reference numeral 13 denotes a through hole in the dorsal side bracket 10 through which the rotation center shaft 12 is inserted, and reference numeral 14 denotes a through hole in the seat side bracket 11 through which the rotation center shaft 12 is inserted.
The reclining mechanism 4 is provided between the dorsal bracket 10 and the seat bracket 11. The configuration of the reclining mechanism 4 is arbitrary, and as an example, an engagement gear 22 is formed on the inner peripheral surface of the one-side case 20, and a lock gear that engages and disengages from the engagement gear 22 in the one-side case 20. A sliding lock member 24 having a portion 23 is provided.

ロック部材24は他方側ケース25の摺動溝26内を摺動して係合ギヤ22に対して遠近移動し、係合ギヤ22に係合するロック状態と係合ギヤ22から離脱したアンロック状態に切り替わる。
他方側ケース25には内側に膨出する膨出部27,27を形成する。前後(図4では左右)に対峙する膨出部27と膨出部27との間に前記摺動溝26を形成する。
前記ロック部材24は上下一対設け、各ロック部材24の回動中心軸12側にはカム面28を形成する。各ロック部材24のカム面28にはカム体29の両端を当接させる。カム体29は回動中心軸12に固定状態に取付ける。
即ち、リクライニング機構4は、ロック部材24を一方側ケース20を他方側ケース25と他方側ガイド部材30とにより挟持し、一方側ケース20と他方側ケース25の何れかの内周面の係合ギヤ22に係合離脱する構成とすればよい。
The locking member 24 slides in the sliding groove 26 of the other case 25 and moves far and away with respect to the engagement gear 22, and the lock member 24 is engaged with the engagement gear 22 and unlocked from the engagement gear 22. Switch to state.
The other case 25 is formed with bulging portions 27 that bulge inward. The sliding groove 26 is formed between the bulging portion 27 and the bulging portion 27 facing the front and rear (left and right in FIG. 4).
A pair of upper and lower lock members 24 are provided, and a cam surface 28 is formed on the rotation center shaft 12 side of each lock member 24. Both ends of the cam body 29 are brought into contact with the cam surface 28 of each lock member 24. The cam body 29 is fixedly attached to the rotation center shaft 12.
That is, the reclining mechanism 4 holds the lock member 24 between the one side case 20 and the other side case 25 and the other side guide member 30, and engages the inner peripheral surface of either the one side case 20 or the other side case 25. What is necessary is just to set it as the structure which engages / releases with the gear 22. FIG.

リクライニング機構4は、リクライニング用操作レバー31により回動中心軸12の回転操作すると、回動中心軸12がカム体29を回転させ、カム体29はロック部材24のカム面28に当接し、ロック部材24は膨出部27,27の間の摺動溝26内を係合ギヤ22から離れる方向に摺動してリクライニング機構4をアンロックにし、背凭シート3の傾斜角度を調節し、リクライニング用操作レバー31を離すと、バネ21によりカム体29をロック方向に回動させ、摺動溝26内をロック部材24が摺動し、係合ギヤ22にロック部材24のロックギヤ部ロックギヤ部23が係合してリクライニング機構4をロックする。
なお、リクライニング用操作レバー31の操作によりカム体29を回転させる構成は任意であり、本実施例ではカム体29を回動中心軸12に固定状態で取付けて、リクライニング用操作レバー31により回動中心軸12を直接回転させているが、回動中心軸12とカム体29とリクライニング用操作レバー31とはリンク等の操作伝達手段により連結してもよく、本願の構成に限定されない。
When the rotation center shaft 12 is rotated by the reclining operation lever 31, the reclining mechanism 4 causes the rotation center shaft 12 to rotate the cam body 29, and the cam body 29 comes into contact with the cam surface 28 of the lock member 24 to lock. The member 24 slides in the sliding groove 26 between the bulging portions 27 and 27 in a direction away from the engagement gear 22 to unlock the reclining mechanism 4, adjust the inclination angle of the dorsal seat 3, and recline When the operating lever 31 is released, the cam body 29 is rotated in the locking direction by the spring 21, the locking member 24 slides in the sliding groove 26, and the locking gear portion 23 of the locking member 24 is locked to the engaging gear 22. Engage and lock the reclining mechanism 4.
The configuration in which the cam body 29 is rotated by operating the reclining operation lever 31 is arbitrary. In this embodiment, the cam body 29 is fixedly attached to the rotation center shaft 12 and rotated by the reclining operation lever 31. Although the central shaft 12 is directly rotated, the rotational central shaft 12, the cam body 29, and the reclining operation lever 31 may be connected by an operation transmission means such as a link, and is not limited to the configuration of the present application.

この場合、例えば、実施例のように、回動中心軸12に所謂セレーションと言われる溝12Aを形成し、カム体29に嵌合させる嵌合部材12Bと一体回転する構成とし、回動中心軸12に対してリクライニング用操作レバー31およびカム体29を固定状態に取付け、リクライニング用操作レバー31の操作によりカム体29回転させる。
また、本実施例のリクライニング用操作レバー31には、ワイヤー32の係止部33を設け、ワイヤー32は図示は省略するが、スライド機構のロック装置に連結し、スライド機構のロック装置を解除してシート全体を前進させ、前進させたシート後方の車両用シート1との間に、人が乗降可能な乗降空間を形成する所謂ウォークイン機構に対応するように構成している。
In this case, for example, as in the embodiment, a so-called serration groove 12A is formed on the rotation center shaft 12, and is configured to rotate integrally with the fitting member 12B fitted to the cam body 29. 12, the reclining operation lever 31 and the cam body 29 are fixedly mounted, and the cam body 29 is rotated by the operation of the reclining operation lever 31.
Further, the reclining operation lever 31 of this embodiment is provided with a locking portion 33 of a wire 32, and although the wire 32 is not shown, it is connected to a locking device of the slide mechanism to release the locking device of the slide mechanism. Thus, the entire seat is advanced, and it is configured to correspond to a so-called walk-in mechanism that forms a boarding / exiting space in which a person can get on and off with the vehicle seat 1 behind the advanced seat.

しかして、背凭側ブラケット10と座席側ブラケット11との間には、リクライニング機構4をアンロックにすると、前記背凭シート3を前倒れさせるバネ40を設ける。バネ40は、中心に一巻き以上渦巻く渦巻き部41を有して形成する所謂スパイラルバネにより構成する。
渦巻き部41の一端には前記背凭側ブラケット10の背凭側係止体42に係止する背凭側係合部43を設ける。背凭側係合部43は渦巻き部41の外周よりも外側(放射方向)に突出させて形成する。
前記背凭側係止体42は、背凭側ブラケット10の縦板部44の外面に取付ける取付部45と背凭側係止体42に係合する係止部46により正面視L型形状に形成する。
Thus, a spring 40 is provided between the dorsal bracket 10 and the seat bracket 11 to cause the dorsal seat 3 to fall forward when the reclining mechanism 4 is unlocked. The spring 40 is configured by a so-called spiral spring formed with a spiral portion 41 that spirals one or more turns in the center.
At one end of the spiral portion 41, a dorsal side engaging portion 43 that is engaged with the dorsal side engaging member 42 of the dorsal side bracket 10 is provided. The dorsal side engaging portion 43 is formed to protrude outward (radial direction) from the outer periphery of the spiral portion 41.
The dorsal side locking body 42 is formed into an L shape when viewed from the front by an attachment portion 45 attached to the outer surface of the vertical plate portion 44 of the dorsal side bracket 10 and a locking portion 46 engaged with the dorsal side locking body 42. Form.

即ち、背凭側係合部43は渦巻き部41の上部に形成し、背凭側ブラケット10の透孔13よりも上方に設けた背凭側係止体42の係止部46に係止する。
渦巻き部41の他端には前記座席側ブラケット11の座席側係止体47に係止される座席側係合部48を設ける。座席側係合部48は渦巻き部41の内周よりも内側(放射方向)に突出させて形成する。
座席側係合部48は回動中心軸12の軸心を挟んで背凭側係合部43と略対峙した渦巻き部41の下部内周に形成する。
前記座席側係止体47は、座席側ブラケット11の縦板部49の内面に取付ける取付部50と座席側係合部48が係合する係止部51により正面視逆さL型形状に形成する。
That is, the dorsal side engaging portion 43 is formed on the upper portion of the spiral portion 41 and is engaged with the engaging portion 46 of the dorsal side engaging body 42 provided above the through hole 13 of the dorsal side bracket 10. .
The other end of the spiral portion 41 is provided with a seat side engaging portion 48 that is locked to the seat side locking body 47 of the seat side bracket 11. The seat side engaging portion 48 is formed so as to protrude inward (radial direction) from the inner periphery of the spiral portion 41.
The seat side engaging portion 48 is formed on the inner periphery of the lower portion of the spiral portion 41 that is substantially opposite to the dorsal side engaging portion 43 across the axis of the rotation center shaft 12.
The seat side latching body 47 is formed in an L-shape inverted in front view by a mounting part 50 attached to the inner surface of the vertical plate part 49 of the seat side bracket 11 and a latching part 51 engaged with the seat side engaging part 48. .

しかして、前記リクライニング機構4は、背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49との間に配置し、バネ40の渦巻き部41の内周面より内側に位置させて、リクライニング機構4とバネ40の渦巻き部41とが渦巻き部41の軸心方向において互いに一部重なる構成とする。
即ち、リクライニング機構4はバネ40の渦巻き部41の内周面より内側に挿入されるようにして、リクライニング機構4の外周より放射方向の外側にバネ40の渦巻き部41が位置する構成として、リクライニング機構4とバネ40とを、渦巻き部41の軸心方向において互いに一部重なる構成とする。
したがって、バネ40の渦巻き部41の幅と渦巻き部41の取付スペースの分だけ、バネ40とリクライニング機構4の左右幅を小さくする。
Thus, the reclining mechanism 4 is disposed between the vertical plate portion 44 of the dorsal bracket 10 and the vertical plate portion 49 of the seat side bracket 11, and is located inside the inner peripheral surface of the spiral portion 41 of the spring 40. Thus, the reclining mechanism 4 and the spiral portion 41 of the spring 40 partially overlap each other in the axial direction of the spiral portion 41.
That is, the reclining mechanism 4 is inserted into the inner peripheral surface of the spiral portion 41 of the spring 40 so that the spiral portion 41 of the spring 40 is positioned radially outward from the outer periphery of the reclining mechanism 4. The mechanism 4 and the spring 40 are configured to partially overlap each other in the axial direction of the spiral portion 41.
Therefore, the left and right widths of the spring 40 and the reclining mechanism 4 are reduced by the width of the spiral portion 41 of the spring 40 and the mounting space of the spiral portion 41.

この場合、バネ40の渦巻き部41の軸心方向の幅とリクライニング機構4の渦巻き部41の軸心方向の厚さとは、渦巻き部41の幅よりもリクライニング機構4の厚さを厚くすると、渦巻き部41の周縁が背凭側ブラケット10の外面と座席側ブラケット11の内面とに接触しないようにでき、好適である。
なお、、バネ40の渦巻き部41は、背凭シート3を後方に倒すと、内径が小さくなって、巻き締まるので、背凭シート3を後方に倒しても、バネ40の渦巻き部41の内周面がリクライニング機構4の外周に当接しないように、バネ40の渦巻き部41の内周面とリクライニング機構4の外周との間に所定の隙間を設けて取付ける。
In this case, the width in the axial direction of the spiral portion 41 of the spring 40 and the thickness in the axial direction of the spiral portion 41 of the reclining mechanism 4 are such that the thickness of the reclining mechanism 4 is larger than the width of the spiral portion 41. It is possible to prevent the peripheral edge of the portion 41 from contacting the outer surface of the dorsal bracket 10 and the inner surface of the seat bracket 11.
It should be noted that the spiral portion 41 of the spring 40 has an inner diameter that is reduced when the dorsal seat 3 is tilted backward, and is tightened. Therefore, even if the dorsal seat 3 is tilted rearward, A predetermined gap is provided between the inner peripheral surface of the spiral portion 41 of the spring 40 and the outer periphery of the reclining mechanism 4 so that the peripheral surface does not contact the outer periphery of the reclining mechanism 4.

また、背凭側係止体42の係止部46は外側に突出し、座席側係止体47の係止部51は内側に突出し、リクライニング機構4およびバネ40を挟んで対峙する構成とする。
また、背凭側係止体42は係止部46に対して取付部45を上側に位置させて背凭側ブラケット10の縦板部44に固定する。
また、座席側係止体47は係止部51に対して取付部50を下側に位置させて座席側ブラケット11の縦板部49に固定する。
また、背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49とは略平行に位置させ、バネ40の渦巻き部41は縦板部49および縦板部44と交差する方向に配置する。
In addition, the locking portion 46 of the dorsal side locking body 42 protrudes outward, and the locking portion 51 of the seat side locking body 47 protrudes inward, and is opposed to the reclining mechanism 4 and the spring 40.
Further, the dorsal-side locking body 42 is fixed to the vertical plate portion 44 of the dorsal-side bracket 10 with the mounting portion 45 positioned above the locking portion 46.
Further, the seat side locking body 47 is fixed to the vertical plate portion 49 of the seat side bracket 11 with the mounting portion 50 positioned below the locking portion 51.
Further, the vertical plate portion 44 of the dorsal bracket 10 and the vertical plate portion 49 of the seat side bracket 11 are positioned substantially parallel to each other, and the spiral portion 41 of the spring 40 intersects the vertical plate portion 49 and the vertical plate portion 44. To place.

また、背凭側ブラケット10の背凭側係止体42の係止部46は座席側ブラケット11の縦板部49の上縁53より上方に位置させる。
また、座席側ブラケット11の座席側係止体47の係止部51は背凭側ブラケット10の縦板部49の下縁54より下方に位置させる。
図8は、他の実施例を示し、リクライニング機構4を、係合ギヤ55を外周に形成したセクタギヤ56と、前記係合ギヤ55にロックギヤ57とを有して構成し、少なくとも、セクタギヤ56とバネ40の渦巻き部41とを渦巻き部41の軸心方向において互いに一部重なる構成にしている。
この場合、リクライニング用操作レバー31は、ロックギヤ57の取付軸58に取り付けている。
Further, the locking portion 46 of the dorsal side locking body 42 of the dorsal bracket 10 is positioned above the upper edge 53 of the vertical plate portion 49 of the seat side bracket 11.
Further, the locking portion 51 of the seat side locking body 47 of the seat side bracket 11 is positioned below the lower edge 54 of the vertical plate portion 49 of the dorsal side bracket 10.
FIG. 8 shows another embodiment, in which the reclining mechanism 4 includes a sector gear 56 having an engagement gear 55 formed on the outer periphery, and a lock gear 57 on the engagement gear 55. The spiral portion 41 of the spring 40 is configured to partially overlap each other in the axial direction of the spiral portion 41.
In this case, the reclining operation lever 31 is attached to the attachment shaft 58 of the lock gear 57.

(実施例の作用)
リクライニング用操作レバー31を操作すると、回動中心軸12がカム体29を回転させ、カム体29はロック部材24のカム面28に当接し、ロック部材24は膨出部27,27の間の摺動溝26内を係合ギヤ22から離れる方向に摺動してリクライニング機構4をアンロックにし、背凭シート3の傾斜角度を調節し、リクライニング用操作レバー31を離すと、バネ21によりカム体29をロック方向に回動させ、摺動溝26内をロック部材24が摺動し、係合ギヤ22にロック部材24のロックギヤ部23が係合してリクライニング機構4をロックする。
(Operation of Example)
When the reclining operation lever 31 is operated, the rotation center shaft 12 rotates the cam body 29, the cam body 29 contacts the cam surface 28 of the lock member 24, and the lock member 24 is located between the bulging portions 27 and 27. When the reclining mechanism 4 is unlocked by sliding in the sliding groove 26 in the direction away from the engaging gear 22, the inclination angle of the dorsal seat 3 is adjusted, and the reclining operation lever 31 is released, the cam is moved by the spring 21. The body 29 is rotated in the lock direction, the lock member 24 slides in the slide groove 26, and the lock gear portion 23 of the lock member 24 is engaged with the engagement gear 22 to lock the reclining mechanism 4.

リクライニング機構4はロック部材24を、一方側ケース20と他方側ケース25とにより挟持し、このリクライニング機構4を背凭側ブラケット10と座席側ブラケット11との間に設け、リクライニング機構4をアンロックにすると、背凭シート3を前倒れさせるバネ40とリクライニング機構4とは渦巻き部41の軸心方向において互いに一部重なる構成としているので、バネ40の渦巻き部41の幅と渦巻き部41の取付スペースの分だけ、バネ40とリクライニング機構4の左右幅を小さくする。   The reclining mechanism 4 holds the locking member 24 between the one side case 20 and the other side case 25, and this reclining mechanism 4 is provided between the dorsal side bracket 10 and the seat side bracket 11 to unlock the reclining mechanism 4. In this case, the spring 40 and the reclining mechanism 4 that cause the dorsal seat 3 to tilt forward are configured to partially overlap each other in the axial direction of the spiral portion 41, so that the width of the spiral portion 41 of the spring 40 and the attachment of the spiral portion 41 are configured. The left and right widths of the spring 40 and the reclining mechanism 4 are reduced by the amount of space.

また、リクライニング機構4とバネ40とは、背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49との間に位置しているので、表皮等の他の構成部材との接触等の干渉を避けられ、作動の確実性を向上させる。
バネ40は、中心に一巻き以上渦巻く渦巻き部41を有して形成し、渦巻き部41の一端には背凭側ブラケット10の背凭側係止体42に係止される背凭側係合部43を設けているので、背凭側係合部43を背凭側係止体42に係止させる。
バネ40の背凭側係合部43は渦巻き部41の外周よりも外側(放射方向)に突出させ、通常着座状態において、上部に位置させているので、背凭側ブラケット10の縦板部44の外面に設けた背凭側係止体42に容易に係合させられる。
Moreover, since the reclining mechanism 4 and the spring 40 are located between the vertical plate part 44 of the dorsal-side bracket 10 and the vertical plate part 49 of the seat-side bracket 11, the reclining mechanism 4 and the spring 40 are separated from other components such as the skin. Interference such as contact can be avoided and the reliability of operation is improved.
The spring 40 is formed to have a spiral part 41 that spirals one or more turns at the center, and the dorsal side engagement that is locked to the dorsal side locking body 42 of the dorsal side bracket 10 at one end of the spiral part 41. Since the portion 43 is provided, the dorsal side engaging portion 43 is locked to the dorsal side locking body 42.
Since the dorsal side engaging portion 43 of the spring 40 protrudes outward (radial direction) from the outer periphery of the spiral portion 41 and is positioned at the upper portion in the normal seating state, the vertical plate portion 44 of the dorsal side bracket 10. It can be easily engaged with the dorsal-side locking body 42 provided on the outer surface.

渦巻き部41の他端には座席側ブラケット11の座席側係止体47に係止される座席側係合部48を設けているので、座席側係止体47に座席側係合部48を係止させる。
バネ40の座席側係合部48は渦巻き部41の内周よりも図6の上方の内側(放射方向)に突出させて形成しているので、座席側ブラケット11の縦板部49の内面に設けた座席側係止体47に座席側係合部48を係合させる。
そのため、渦巻き部41の内周に設けた座席側係合部48を、座席側ブラケット11の座席側係止体47に係止できる。
Since the seat-side engaging portion 48 that is locked to the seat-side locking body 47 of the seat-side bracket 11 is provided at the other end of the spiral portion 41, the seat-side engaging portion 48 is attached to the seat-side locking body 47. Lock.
Since the seat side engaging portion 48 of the spring 40 is formed so as to protrude to the inner side (radial direction) above the inner periphery of the spiral portion 41 in FIG. 6, the seat side engaging portion 48 is formed on the inner surface of the vertical plate portion 49 of the seat side bracket 11. The seat side engaging portion 48 is engaged with the provided seat side locking body 47.
Therefore, the seat side engaging portion 48 provided on the inner periphery of the spiral portion 41 can be locked to the seat side locking body 47 of the seat side bracket 11.

この場合、座席側係合部48は回動中心軸12の軸心を挟んで背凭側係合部43と略対峙した渦巻き部41の下部内周に形成しているので、座席側係止体47を座席側ブラケット11の透孔14より下方の縦板部49に設けられる。
背凭側係止体42は、背凭側ブラケット10の縦板部44の外面に取付ける取付部45と背凭側係合部43が係合する係止部46により正面視L型形状に形成しているので、背凭側係止体42の係止部46とバネ40の背凭側係合部43は正面視において回動中心軸12の軸心方向で一部を互いに重ねられる。
In this case, since the seat side engaging portion 48 is formed on the inner periphery of the lower portion of the spiral portion 41 that is substantially opposite to the dorsal side engaging portion 43 with the axis of the rotation center shaft 12 interposed therebetween, The body 47 is provided on the vertical plate portion 49 below the through hole 14 of the seat side bracket 11.
The dorsal side locking body 42 is formed in an L shape when viewed from the front by an attachment portion 45 attached to the outer surface of the vertical plate portion 44 of the dorsal side bracket 10 and a locking portion 46 engaged with the dorsal side engaging portion 43. Therefore, the locking portion 46 of the dorsal side locking body 42 and the dorsal side engaging portion 43 of the spring 40 are partially overlapped with each other in the axial direction of the rotation center shaft 12 in a front view.

即ち、背凭側係合部43は渦巻き部41の上面より上方に形成し、背凭側ブラケット10の透孔13よりも上方に背凭側係止体42を設けているので、背凭側係止体42の係止部46とバネ40の背凭側係合部43は正面視において回動中心軸12の軸心方向で一部を互いに重ねられる。
前記座席側係止体47は、座席側ブラケット11の縦板部49の内面に取付ける取付部50と座席側係合部48が係合する係止部51により正面視逆さL型形状に形成しているので、座席側係止体47の係止部51とバネ40の座席側係合部48は正面視において回動中心軸12の軸心方向で一部を互いに重ねられる。
That is, the dorsal side engaging portion 43 is formed above the upper surface of the spiral portion 41 and the dorsal side locking body 42 is provided above the through hole 13 of the dorsal side bracket 10. The locking portion 46 of the locking body 42 and the dorsal side engaging portion 43 of the spring 40 are partially overlapped with each other in the axial direction of the rotation center shaft 12 in a front view.
The seat side latching body 47 is formed in an L-shape inverted in front view by a mounting part 50 attached to the inner surface of the vertical plate part 49 of the seat side bracket 11 and a latching part 51 engaged with the seat side engaging part 48. Therefore, the locking portion 51 of the seat-side locking body 47 and the seat-side engaging portion 48 of the spring 40 are partially overlapped with each other in the axial direction of the rotation center shaft 12 in a front view.

したがって、背凭側ブラケット10と座席側ブラケット11とバネ40とは回動中心軸12の軸心方向の幅を小さくする。
また、リクライニング機構4は背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49との間に位置させ、しかも、バネ40の渦巻き部41の内周面より内側に位置させ、リクライニング機構4とバネ40とを、回動中心軸12の軸心方向において正面視で一部を重ねる構成としているので、背凭側ブラケット10と座席側ブラケット11とリクライニング機構4とバネ40とは回動中心軸12の軸心方向の幅を小さくし、リクライニング機構4とバネ40の取付スペースを小さくする。
Therefore, the back bracket 10, the seat bracket 11, and the spring 40 reduce the width of the rotation center shaft 12 in the axial direction.
Further, the reclining mechanism 4 is positioned between the vertical plate portion 44 of the dorsal bracket 10 and the vertical plate portion 49 of the seat side bracket 11, and is positioned further inside than the inner peripheral surface of the spiral portion 41 of the spring 40. Since the reclining mechanism 4 and the spring 40 are partially overlapped in front view in the axial direction of the rotation center shaft 12, the backside bracket 10, the seat side bracket 11, the reclining mechanism 4, and the spring 40 Decreases the width of the rotation center shaft 12 in the axial direction, and reduces the space for mounting the reclining mechanism 4 and the spring 40.

この場合、バネ40の渦巻き部41の幅とリクライニング機構4の厚さとは、渦巻き部41の幅よりリクライニング機構4の厚さを厚くすると、渦巻き部41の周縁が背凭側ブラケット10の外面と座席側ブラケット11の内面とに接触せず、好適である。
また、背凭側係止体42の係止部46は外側に突出し、座席側係止体47の係止部51は内側に突出し、リクライニング機構4およびバネ40を挟んで対峙する構成としているので、正面視において回動中心軸12の軸心方向で係止部46と係止部51との一部を互いに重ねられ、リクライニング機構4およびバネ40の取付スペースを小さくする。
In this case, the width of the spiral portion 41 of the spring 40 and the thickness of the reclining mechanism 4 are as follows. When the thickness of the reclining mechanism 4 is made larger than the width of the spiral portion 41, the peripheral edge of the spiral portion 41 is separated from the outer surface of the back bracket 10. It does not contact the inner surface of the seat side bracket 11 and is suitable.
Further, the locking portion 46 of the dorsal side locking body 42 protrudes outward, and the locking portion 51 of the seat side locking body 47 protrudes inward, so that they face each other with the reclining mechanism 4 and the spring 40 interposed therebetween. In the front view, a part of the locking part 46 and the locking part 51 are overlapped with each other in the axial direction of the rotation center shaft 12 to reduce the mounting space for the reclining mechanism 4 and the spring 40.

また、背凭側係止体42は係止部46に対して取付部45を上側に位置させて背凭側ブラケット10の縦板部44に固定しているので、取付部45がバネ40の渦巻き部41と重ならず、回動中心軸12の軸心方向のリクライニング機構4およびバネ40の取付スペースを小さくする。
また、座席側係止体47は係止部51に対して取付部50を下側に位置させて座席側ブラケット11の縦板部49に固定しているので、取付部50がバネ40の渦巻き部41と重ならず、回動中心軸12の軸心方向のリクライニング機構4およびバネ40の取付スペースを小さくする。
Further, since the dorsal side locking body 42 is fixed to the vertical plate portion 44 of the dorsal side bracket 10 with the mounting portion 45 positioned above the locking portion 46, the mounting portion 45 is fixed to the spring 40. The space for mounting the reclining mechanism 4 and the spring 40 in the axial direction of the rotation center shaft 12 is reduced without overlapping the spiral portion 41.
Further, since the seat side locking body 47 is fixed to the vertical plate portion 49 of the seat side bracket 11 with the mounting portion 50 positioned below the locking portion 51, the mounting portion 50 is a spiral of the spring 40. The mounting space for the reclining mechanism 4 and the spring 40 in the axial direction of the rotation center shaft 12 is reduced without overlapping the portion 41.

また、背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49とは略平行に位置させ、バネ40の渦巻き部41は縦板部49および縦板部44と交差する方向に配置しているので、正面視において回動中心軸12の軸心方向でバネ40の渦巻き部41とリクライニング機構4との一部を互いに重ねられ、回動中心軸12の軸心方向のリクライニング機構4およびバネ40の取付スペースを小さくする。
また、背凭側ブラケット10の背凭側係止体42の係止部46は座席側ブラケット11の縦板部49の上縁53より上方に位置させているので、回動中心軸12の軸心方向のリクライニング機構4およびバネ40の取付スペースを小さくする。
Further, the vertical plate portion 44 of the dorsal bracket 10 and the vertical plate portion 49 of the seat side bracket 11 are positioned substantially parallel to each other, and the spiral portion 41 of the spring 40 intersects the vertical plate portion 49 and the vertical plate portion 44. Therefore, a part of the spiral portion 41 of the spring 40 and the reclining mechanism 4 are overlapped with each other in the axial direction of the rotation center shaft 12 in a front view, and the reclining in the axial direction of the rotation center shaft 12 is performed. The mounting space for the mechanism 4 and the spring 40 is reduced.
Further, since the locking portion 46 of the dorsal side locking body 42 of the dorsal side bracket 10 is positioned above the upper edge 53 of the vertical plate portion 49 of the seat side bracket 11, The mounting space for the reclining mechanism 4 and the spring 40 in the central direction is reduced.

また、座席側ブラケット11の座席側係止体47の係止部51は背凭側ブラケット10の縦板部49の下縁54より下方に位置させているので、回動中心軸12の軸心方向のリクライニング機構4およびバネ40の取付スペースを小さくする。
また、図8の他の実施例では、リクライニング用操作レバー31を操作すると、取付軸58が回転し、ロックギヤ57を取付軸58中心に回動させ、セクタギヤ56の係合ギヤ55から離脱して、アンロック状態となり、リクライニング用操作レバー31を離すと、バネ(図示省略)によりロックギヤ57が戻ってセクタギヤ56の係合ギヤ55に係合してロック状態となる。
この場合、セクタギヤ56とバネ40の渦巻き部41とを渦巻き部41の軸心方向において互いに一部重なる構成にしているので、渦巻き部41の軸心方向のリクライニング機構4およびバネ40の取付スペースを小さくする。
Further, since the locking portion 51 of the seat side locking body 47 of the seat side bracket 11 is positioned below the lower edge 54 of the vertical plate portion 49 of the dorsal side bracket 10, the axial center of the rotation center shaft 12. The mounting space for the direction reclining mechanism 4 and the spring 40 is reduced.
Further, in another embodiment of FIG. 8, when the reclining operation lever 31 is operated, the attachment shaft 58 rotates, the lock gear 57 is rotated about the attachment shaft 58, and is disengaged from the engagement gear 55 of the sector gear 56. When the reclining operation lever 31 is released, the lock gear 57 is returned by a spring (not shown) and engaged with the engagement gear 55 of the sector gear 56 to be locked.
In this case, since the sector gear 56 and the spiral portion 41 of the spring 40 are configured to partially overlap each other in the axial direction of the spiral portion 41, the mounting space for the reclining mechanism 4 and the spring 40 in the axial direction of the spiral portion 41 is reduced. Make it smaller.

1…車両用シート、2…座席シート、3…背凭シート、4…リクライニング機構、5…スライドレール、10…背凭側ブラケット、11…座席側ブラケット、12…回動中心軸、13…透孔、14…透孔、20…一方側ケース、22…係合ギヤ、23…ロックギヤ部、24…ロック部材、25…他方側ケース、26…摺動溝、27…膨出部、28…カム面、29…カム体、31…リクライニング用操作レバー、32…ワイヤー、33…係止部、40…バネ、41…渦巻き部、42…背凭側係止体、43…背凭側係合部、44…縦板部、45…取付部、46…係止部、47…座席側係止体、48…座席側係合部、49…縦板部、50…取付部、51…係止部、53…上縁、54…下縁、55…係合ギヤ、56…セクタギヤ、57…ロックギヤ、58…取付軸。   DESCRIPTION OF SYMBOLS 1 ... Vehicle seat, 2 ... Seat seat, 3 ... Back seat seat, 4 ... Reclining mechanism, 5 ... Slide rail, 10 ... Back side bracket, 11 ... Seat side bracket, 12 ... Turning center axis, 13 ... Transparent Hole: 14 ... Through hole, 20 ... One side case, 22 ... engagement gear, 23 ... lock gear part, 24 ... lock member, 25 ... other side case, 26 ... sliding groove, 27 ... bulge part, 28 ... cam Surface, 29 ... cam body, 31 ... reclining operation lever, 32 ... wire, 33 ... locking part, 40 ... spring, 41 ... spiral part, 42 ... dorsal side locking body, 43 ... dorsal side engaging part 44 ... Vertical plate portion, 45 ... Mounting portion, 46 ... Locking portion, 47 ... Seat side locking body, 48 ... Seat side engaging portion, 49 ... Vertical plate portion, 50 ... Mounting portion, 51 ... Locking portion 53 ... Upper edge, 54 ... Lower edge, 55 ... Engagement gear, 56 ... Sector gear, 57 ... Lock gear, 8 ... the mounting shaft.

Claims (6)

座席シート2に背凭シート3をリクライニング機構4を介して回動中心軸12中心に回動自在で傾斜角度調節自在に取付け、前記リクライニング機構4は係合ギヤ22に係脱するロック部材24を有して構成し、前記座席シート2と前記背凭シート3との間には前記リクライニング機構4がアンロック状態になると前記背凭シート3を前方回動させるように付勢するバネ40を設け、該バネ40は、中心に一巻き以上渦巻く渦巻き部41を有して形成し、渦巻き部41の一端の背凭側係合部43は前記背凭シート3の背凭側ブラケット10の背凭側係止体42に係止し、前記渦巻き部41の他端の座席側係合部48は座席側ブラケット11の座席側係止体47に係止し、前記リクライニング機構4は、前記背凭側ブラケット10の縦板部44と座席側ブラケット11の縦板部49との間に設け、前記バネ40の渦巻き部41はその軸心方向を回動中心軸12の軸心方向と略平行にし、前記バネ40の渦巻き部41と前記リクライニング機構4とは前記渦巻き部41の軸心方向において互いに一部重なる構成とした車両用シート。 A backrest seat 3 is attached to the seat seat 2 via a reclining mechanism 4 so as to be rotatable about the rotation center shaft 12 and to be adjustable in inclination angle. The reclining mechanism 4 has a lock member 24 that is engaged with and disengaged from the engagement gear 22. And a spring 40 is provided between the seat seat 2 and the dorsal seat 3 to bias the dorsal seat 3 forward when the reclining mechanism 4 is unlocked. The spring 40 is formed to have a spiral part 41 that spirals one or more times in the center, and the dorsal side engaging part 43 at one end of the spiral part 41 is the dorsal part of the dorsal side bracket 10 of the dorsal seat 3. The side locking body 42 is locked, the seat side engagement portion 48 at the other end of the spiral portion 41 is locked to the seat side locking body 47 of the seat side bracket 11, and the reclining mechanism 4 is Vertical plate portion 44 of the side bracket 10 The spiral portion 41 of the spring 40 is provided between the vertical plate portion 49 of the seat side bracket 11 and the axial direction of the spiral portion 41 of the spring 40 is substantially parallel to the axial direction of the rotation center shaft 12. The reclining mechanism 4 is a vehicle seat configured to partially overlap each other in the axial direction of the spiral portion 41. 請求項1において、前記バネ40の渦巻き部41の軸心方向の幅と前記リクライニング機構4の前記渦巻き部41の軸心方向の厚さとは、前記渦巻き部41の幅より前記リクライニング機構4の厚さを厚くした車両用シート。 The width of the spiral portion 41 of the spring 40 in the axial direction and the thickness of the spiral portion 41 of the reclining mechanism 4 in the axial direction according to claim 1 are: Thickened vehicle seat. 請求項1または請求項2において、前記背凭側係止体42は、背凭側ブラケット10の縦板部44の外面に取付ける取付部45と前記背凭側係合部43が係合する係止部46によりL型形状に形成し、前記座席側係止体47は、座席側ブラケット11の縦板部49の内面に取付ける取付部50と座席側係合部48が係合する係止部51により正面視逆さL型形状に形成し、前記背凭側係止体42の係止部46は外側に突出し、前記座席側係止体47の係止部51は内側に突出し、前記係止部46と前記係止部51は前記リクライニング機構4を挟んで対峙する構成とした車両用シート。 3. The dorsal side locking body 42 according to claim 1 or 2, wherein the dorsal side locking body 42 is engaged with the attachment portion 45 attached to the outer surface of the vertical plate portion 44 of the dorsal side bracket 10 and the dorsal side engaging portion 43. The seat side latching body 47 is formed in an L shape by a stop portion 46, and the seat side latching body 47 is a latching portion in which the mounting portion 50 attached to the inner surface of the vertical plate portion 49 of the seat side bracket 11 and the seat side engaging portion 48 are engaged. 51 is formed in an inverted L shape when viewed from the front, the locking portion 46 of the dorsal side locking body 42 protrudes outward, the locking portion 51 of the seat side locking body 47 protrudes inward, and the locking The vehicle seat configured such that the portion 46 and the locking portion 51 face each other with the reclining mechanism 4 interposed therebetween. 請求項1または請求項2または請求項3において、前記バネ40の背凭側係合部43は、渦巻き部41の上部外周に形成し、バネ40の座席側係合部48は回動中心軸12の軸心を挟んで前記背凭側係合部43と略対峙した渦巻き部41の下部内周に形成した車両用シート。 4. The dorsal side engaging portion 43 of the spring 40 is formed on the outer periphery of the upper portion of the spiral portion 41, and the seat side engaging portion 48 of the spring 40 is a rotation center axis. The vehicle seat formed in the lower inner periphery of the spiral part 41 substantially opposed to the dorsal side engaging part 43 across the 12 axis. 請求項1または請求項2または請求項3または請求項4において、前記背凭側係止体42は、背凭側ブラケット10の縦板部44の外面に取付ける取付部45と前記背凭側係合部43が係合する係止部46により形成し、前記座席側係止体47は、座席側ブラケット11の縦板部49の内面に取付ける取付部50と座席側係合部48が係合する係止部51により形成し、前記背凭側係止体42は係止部46に対して取付部45を上側に位置させて背凭側ブラケット10の縦板部44に固定し、前記座席側係止体47は係止部51に対して取付部50を下側に位置させて座席側ブラケット11の縦板部49に固定した車両用シート。 In Claim 1, 2 or 3 or 4, the dorsal-side locking body 42 includes an attachment portion 45 attached to the outer surface of the vertical plate portion 44 of the dorsal-side bracket 10 and the dorsal-side engagement. The seat side locking body 47 is formed by a locking portion 46 with which the joint portion 43 is engaged, and the mounting portion 50 and the seat side engaging portion 48 that are attached to the inner surface of the vertical plate portion 49 of the seat side bracket 11 are engaged. The dorsal side locking body 42 is fixed to the vertical plate portion 44 of the dorsal bracket 10 with the mounting portion 45 positioned above the locking portion 46, and the seat The side locking body 47 is a vehicle seat that is fixed to the vertical plate portion 49 of the seat side bracket 11 with the mounting portion 50 positioned below the locking portion 51. 請求項1または請求項2または請求項3または請求項4または請求項5において、前記リクライニング機構4は、正円形の内周面に係合ギヤ22を形成したケース内に、前記係合ギヤ22に係合離脱するロック部材24を設けて構成した車両用シート。 The reclining mechanism 4 according to claim 1, claim 2, claim 3, claim 4, or claim 5, wherein the reclining mechanism 4 is provided in the case in which the engagement gear 22 is formed on a regular circular inner peripheral surface. A vehicle seat comprising a lock member 24 that engages and disengages.
JP2009295214A 2009-12-25 2009-12-25 Vehicle seat Active JP5537923B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730777U (en) * 1993-11-30 1995-06-13 株式会社タチエス Seat recliner structure
JP2001128768A (en) * 1999-10-29 2001-05-15 Aisin Seiki Co Ltd Seat reclineing device
JP2003093185A (en) * 2001-09-26 2003-04-02 Aisin Seiki Co Ltd Seat device
JP2004130888A (en) * 2002-10-09 2004-04-30 Daihatsu Motor Co Ltd Sheet structure of vehicle
JP2008044559A (en) * 2006-08-18 2008-02-28 T S Tec Kk Vehicle seat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730777U (en) * 1993-11-30 1995-06-13 株式会社タチエス Seat recliner structure
JP2001128768A (en) * 1999-10-29 2001-05-15 Aisin Seiki Co Ltd Seat reclineing device
JP2003093185A (en) * 2001-09-26 2003-04-02 Aisin Seiki Co Ltd Seat device
JP2004130888A (en) * 2002-10-09 2004-04-30 Daihatsu Motor Co Ltd Sheet structure of vehicle
JP2008044559A (en) * 2006-08-18 2008-02-28 T S Tec Kk Vehicle seat

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