JP3555175B2 - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
JP3555175B2
JP3555175B2 JP11541094A JP11541094A JP3555175B2 JP 3555175 B2 JP3555175 B2 JP 3555175B2 JP 11541094 A JP11541094 A JP 11541094A JP 11541094 A JP11541094 A JP 11541094A JP 3555175 B2 JP3555175 B2 JP 3555175B2
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JP
Japan
Prior art keywords
seat back
upper seat
lower seat
back frame
vehicle seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP11541094A
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Japanese (ja)
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JPH07315088A (en
Inventor
秀隆 永安
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Araco Corp
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Araco Corp
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Publication date
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Priority to JP11541094A priority Critical patent/JP3555175B2/en
Publication of JPH07315088A publication Critical patent/JPH07315088A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B60N2/682—Joining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2002/0204—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable characterised by the seat or seat part turning about or moving along a non-standard, particular axis, i.e. an axis different from the axis characterising the conventional movement
    • B60N2002/022—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable characterised by the seat or seat part turning about or moving along a non-standard, particular axis, i.e. an axis different from the axis characterising the conventional movement the seat or seat part turning about or moving along a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces

Description

【０００１】
【産業上の利用分野】
本発明は車両用シートに関する。
【０００２】
【従来の技術】
車両用シートには乗降性や快適性を良くするためシートの前後位置を調整するシートトラック機構、シートバックのリクライニング角度を調整するシートリクライニング機構、シートを回転する機構等が設けられている。
【０００３】
【発明が解決しようとする課題】
ところで、シートに着座した状態で後に振り返ってリヤシートの荷物を取ったり、直接自分の目で後方の視界を確認する場合、シートバックが邪魔になって振り返りにくいことはよく経験するところである。このようなときに乗員の振り返る動作に追従してシートバックが作動すると好都合であるが、従来のシートにはかかる機能を果たす機構は設けられていない。
【０００４】
本発明はかかる点に鑑み、乗員が着座したまま振り返るときその動作に追従してシートバックが縦軸回りに後方へ回動する車両用シートを提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明に係る車両用シートはシートバックをアッパシートバックとロアシートバックの上下二つに分割し、ロアシートバックの中間部に設けた縦軸を支軸にしてアッパシートバックを前記縦軸回りに回動可能に組み付け、前記アッパシートバックとロアシートバックには前記縦軸と同軸的に設けられてＸ形の突起が形成されたリングプレートと前記Ｘ形の突起と係合して前記アッパシートバックの回動量を制限するストッパプレートを固定し、前記アッパシートバックを前記ロアシートバックと整列する位置に解除可能に連結するロック機構及び前記アッパシートバックを前記整列する位置に回動付勢する付勢手段を設けたことを特徴とする。
【０００６】
【発明の作用・効果】
請求項１の発明によれば車両用シートのシートバックをアッパシートバックとロアシートバックの上下二つに分割し、ロアシートバックの中間部に設けた縦軸を支軸にしてアッパシートバックを前後方向へ回動可能に組付けたので、乗員が着座した状態でロック機構によるロックを解除して振り返ると、付勢手段の付勢力に抗してアッパシートバックが後方に回動する。このため、着座したままリヤシートの荷物を取ったり、後方の視界を確認する動作がシートバックで邪魔されないので容易になる。また、アッパシートバックの回動中心となる縦軸をロアシートバックの中間部に設けたので、乗員は左右いずれの側へも振り返ることができる。またアッパシートバックとロアシートバックには縦軸と同軸的に設けられたリングプレートとストッパプレートを固定し、ストッパプレートをリングプレートに形成されたＸ形の突起と係合させて前記アッパシートバックの回動量を制限したので、振り返ったとき乗員の姿勢が崩れるのを防止できる。
【０００７】
【実施例】
以下に本発明を図面に基づき説明するに図１及び図２には本発明の一実施例に係る車両用シートＳが示されている。当該シートＳには周知のシートリクライニング機構１０が設けられており、シートバックＳＢの傾斜角度を調整できる。このシートバックＳＢは下端から約１／３の高さのところでアッパシートバック１１とロアシートバック１２の上下二つに分割され、アッパシートバック１１の頂部にはヘッドレスト１３が取付けられている。
【０００８】
アッパシートバック１１とロアシートバック１２にはそれぞれアッパシートバックフレーム１４とロアシートバックフレーム１５が内蔵され、アッパシートバックは後述するようにボルト１６を回動の支軸として前後方向へ回動可能にロアシートバックフレームに組付けられ、ロック機構３０にて解除可能にロックされている。
【０００９】
図３に全体の形状を示すように、アッパシートバックフレーム１４は門形を有し、左右の下端部に補強パイプ１７が溶接されている。また、ロアシートバックフレーム１５は逆門形を有し左右の上端部に補強パイプ１８が溶接されている。
【００１０】
図４及び図５に示すように、両補強パイプ１７，１８の中間部には通孔１７ａ，１８ａが形成され、両通孔１７ａ，１８ａにボルト１６が挿入され、ボルト１６にワッシャ１９，２０とカラー２１が装着されている。ボルト１６は補強パイプ１７と一体に回動するように頭部が補強パイプ１７に溶接されている。アッパシートバックフレーム１４はこのボルト１６を縦軸としてロアシートバックフレーム１５に前後方法に回動可能に組付けられている。補強パイプ１８の通孔１８ａの裏面にはリングプレート２２が溶接して固着されている。このリングプレート２２はＸ形の突起２２ａが設けられている。一方、ボルト１６の通孔１８ａから下方に突出する端部にはスリット１６ａが形成され、このスリット１６ａにストッパプレート２３を装着してワッシャ２４とナット２５で抜け止めされている。ストッパプレート２３の上端面がリングプレート２２のＸ形突起２２ａに係合することによりアッパシートバックフレーム１４の回動量が制限される。また、補強パイプ１８の通孔１８ａの左右両側にはピン２６，２７が植設され、各ピン２６，２７とストッパプレート２３の左右各端部間にコイルスプリング２８，２９が張設されている。両コイルスプリング２８，２９はアッパシートバック１１に外力が加わらない状態においてアッパシートバック１１を図１に示すようにロアシートバック１２に整列する位置に保持するため設けられている。
【００１１】
ロック機構３０は図６及び図７に詳細に示すようにロックピン３１、コイルスプリング３２、上下一対のスプリング受け３３，３４、ストッパリング３５を備え、ロックピン３１の上端部にはガイドピン３６が植設されている。一方、アッパシートバックフレーム１４の左下端部の外周には開口から上方に延びるガイドスリット１４ａが形成され、ガイドスリット１４ａの上端部には係合凹所１４ｂが連設されている。また、ガイドスリット１４ａの上端部の上方には周方向に沿って長孔１４ｃが形成され、上側のスプリング受け３３がこの長孔１４ｃに嵌着されている。コイルスプリング３２と下側のスプリング受け３４及びロックピン３１はアッパシートバックフレーム１４の左下端の開口から挿入され、ガイドピン３６がガイドスリット１４ａに摺動可能に嵌合している。さらに、アッパシートバックフレーム１４の下端部外周にストッパリング３５が嵌着され、コイルスプリング３２にて下方に付勢されたロックピン３１はガイドピン３６がストッパリング３５の上端に当接して抜け止めされている。
【００１２】
ロック機構３０はかかる構成を有するので、図７に示すように、ロックピン３１はガイドピン３６がストッパリング３５に当接した状態においてアッパシートバックフレーム１４の下端開口から突出してロアシートバックフレーム１５の左側上端開口に嵌合し、これによりアッパシートバックフレーム１４がロアシートバックフレーム１５にロックされる。一方、コイルスプリング３２のバネ力に抗しガイドピン３６をガイドスリット１４ａに沿って上方へ持ち上げるとロックピン３１がロアシートバックフレーム１５の上端開口から外れるので、アッパシートバックフレーム１４のロックが解除される。また、ガイドピン３６を係合凹所１４ｂに係合させることによりロック解除の状態を保つことができる。
【００１３】
なお、ロアシートバックフレーム１５とアッパシートバックフレーム１４にはパッド４０（図１、図２参照）を支持するためのＳ字スプリング４１が張られているほか、着座者の両脇を支持するサイドサポート部を構成するワイヤー４２，４３が固定されている。
【００１４】
本実施例に係る車両用シートは以上の構成からなり、次にその作動を説明する。
【００１５】
図１、図３及び図７に示す状態においては、ロックピン３１がロアシートバックフレーム１５の上端開口部に嵌合しているので、アッパシートバックフレーム１４がロアシートバックフレーム１５にロックされ、図１に示すようにアッパシートバック１１がロアシートバック１２に整列して着座者の背中を支持する。
【００１６】
着座者が振り返ってリヤシートから荷物を取り上げたり、後方の視界を確認したいときは、ガイドピン３６をスプリング３２に抗して持ち上げ係合凹所に係合させると、ロックピン３１がロアシートバックフレーム１５から外れるので、アッパシートバック１１がボルト１６を支軸にして前後方向へ回動可能となる。そこで、アッパシートバック１１の左側部を背中で後へ押すと、アッパシートバック１１が図２に示すようにねじれるので、着座者はシートバックＳＢに邪魔されることなく振り返ることができる。
【００１７】
押し付けていた背中をアッパシートバック１１から離すと、コイルスプリング２８，２９のバネ力でアッパシートバック１１がロアシートバック１２に整列する位置まで復帰する。そこで、ガイドピン３６を係合凹所から外すと、ロックピン３１がスプリング３２のバネ力で下降し、ロアシートバックフレーム１５に嵌合する。これにより、アッパシートバック１１がロアシートバック１２にロックされる。
【００１８】
以上説明したように、本実施例によれば車両用シートのシートバックＳＢをアッパシートバック１１とロアシートバック１２の上下二つに分割し、ロアシートバック１２の中間部に設けたボルト１６を支軸にしてアッパシートバック１１を前後方向へ回動可能に組付けたので、乗員が着座した状態でロック機構３０によるロックを解除して振り返ると、コイルスプリング２８，２９はバネ力に抗してアッパシートバックが１１後方に回動する。このため、着座したままリヤシートの荷物を取ったり、後方の視界を確認する動作がシートバックＳＢで邪魔されないので容易になる。また、アッパシートバック１１の回動中心となるボルト１６をロアシートバック１２の中間部に設けたので、乗員は左右いずれの側へも振り返ることができる。さらにストッパプレート２３とリングプレート２２にてアッパシートバックの回動量を制限したので、振り返ったとき姿勢が崩れるのを防止できる。
【図面の簡単な説明】
【図１】本発明の一実施例に係る車両用シートを示す一部破断した斜視図である。
【図２】同車両用シートにおける作動状態を示す一部破断した斜視図である。
【図３】同車両用シートにおけるシートバックの内部構造を示す斜視図である。
【図４】同車両用シートにおけるシートバックの内部構造の主要部を示す分解斜視図である。
【図５】同車両用シートにおけるシートバックの内部構造の主要部を示す一部破断した組立図である。
【図６】同車両用シートにおけるロック機構を示す分解斜視図である。
【図７】同ロック機構を示す組立断面図である。
【符号の説明】
１０…シートリクライニング機構、１１…アッパシートバック、１２…ロアシートバック、１３…ヘッドレスト、１４…アッパシートバックフレーム、１４ａ…ガイドスリット、１４ｂ…係合凹所、１４ｃ…長孔、１５…ロアシートバックフレーム、１６…ボルト、１７…補強パイプ、１８…補強パイプ、１７ａ，１８ａ…通孔、１９，２０，２４…ワッシャ、２１…カラー、２２…リングプレート、２３…ストッパプレート、２４…ワッシャ、２５…ナット、２６，２７…ピン、２８，２９…コイルスプリング、３０…ロック機構、３１…ロックピン、３２…コイルスプリング、３３，３４…スプリング受け、３５…ストッパリング、３６…ガイドピン、４０…パッド、４１…Ｓ字スプリング、４２，４３…ワイヤー、Ｓ…車両用シート、ＳＢ…シートバック。[0001]
[Industrial application fields]
The present invention relates to a vehicle seat.
[0002]
[Prior art]
Vehicle seats are provided with a seat track mechanism that adjusts the front and rear position of the seat, a seat reclining mechanism that adjusts the reclining angle of the seat back, a mechanism that rotates the seat, and the like in order to improve ease of getting on and off.
[0003]
[Problems to be solved by the invention]
By the way, when sitting on the seat and looking back later to take the luggage of the rear seat, or directly confirming the rear view with your own eyes, it is often experienced that the seat back is obstructive and difficult to look back. Although sheet Tobakku following the operation to look back of the occupant when such is convenient to operate, mechanisms to fulfill such the conventional sheet function is not provided.
[0004]
In view of this point, the present invention has an object to provide a vehicle seat in which a seatback follows a movement of a passenger and turns backward around a vertical axis when the passenger turns back while sitting.
[0005]
[Means for Solving the Problems]
The vehicle seat according to the present invention divides the seat back into two parts, the upper seat back and the lower seat back, and rotates the upper seat back around the vertical axis with the vertical axis provided in the middle of the lower seat back as a support shaft. The upper seat back and the lower seat back are mounted so as to be coaxial with the longitudinal axis and are engaged with the X-shaped projections and a ring plate formed with X-shaped projections. A locking mechanism that fixes a stopper plate that limits the amount of rotation and releasably connects the upper seat back to a position aligned with the lower seat back, and a biasing means that biases the upper seat back to the aligned position. Is provided.
[0006]
[Operation and effect of the invention]
According to the present invention divides the seat back of a vehicle seat in the vertical two upper seat back and the lower seat back, the front-rear direction upper seat back to a vertical shaft provided at an intermediate portion of the lower seat back supporting shaft The upper seat back is rotated backward against the urging force of the urging means when the lock by the locking mechanism is released and turned in a state where the occupant is seated. For this reason, the operation of taking the luggage of the rear seat while sitting down and checking the rear view is not disturbed by the seat back, and therefore it becomes easy. In addition, since the vertical axis serving as the center of rotation of the upper seat back is provided in the middle portion of the lower seat back, the occupant can look back to either the left or right side. Further, a ring plate and a stopper plate provided coaxially with the vertical axis are fixed to the upper seat back and the lower seat back, and the stopper plate is engaged with an X-shaped protrusion formed on the ring plate to Since the amount of rotation is limited, it is possible to prevent the posture of the occupant from collapsing when looking back.
[0007]
【Example】
The present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a vehicle seat S according to an embodiment of the present invention. The seat S is provided with a well-known seat reclining mechanism 10, and the inclination angle of the seat back SB can be adjusted. The seat back SB is divided into an upper seat back 11 and a lower seat back 12 at a height of about 1/3 from the lower end, and a headrest 13 is attached to the top of the upper seat back 11.
[0008]
Each of the upper seat back 11 and the lower seat back 12 incorporates an upper seat back frame 14 and a lower seat back frame 15, and the upper seat back is pivotable in the front-rear direction using a bolt 16 as a pivot as will be described later. It is assembled to the back frame and locked releasably by the lock mechanism 30.
[0009]
As shown in FIG. 3, the upper seat back frame 14 has a gate shape, and reinforcing pipes 17 are welded to the left and right lower ends. Further, the lower seat back frame 15 has an inverted portal shape, and reinforcing pipes 18 are welded to upper left and right ends.
[0010]
As shown in FIGS. 4 and 5, through holes 17 a and 18 a are formed in the middle part of both reinforcing pipes 17 and 18 , bolts 16 are inserted into both through holes 17 a and 18 a, and washers 19 and 20 are inserted into the bolts 16. And a collar 21 are mounted. The head of the bolt 16 is welded to the reinforcing pipe 17 so as to rotate integrally with the reinforcing pipe 17. The upper seat back frame 14 is assembled to the lower seat back frame 15 so as to be rotatable in the front-rear direction with the bolt 16 as a vertical axis. A ring plate 22 is fixed to the back surface of the through hole 18a of the reinforcing pipe 18 by welding. The ring plate 22 is provided with an X-shaped protrusion 22a. On the other hand, a slit 16a is formed at an end projecting downward from the through hole 18a of the bolt 16, and a stopper plate 23 is attached to the slit 16a and is prevented from being removed by a washer 24 and a nut 25. When the upper end surface of the stopper plate 23 is engaged with the X-shaped protrusion 22a of the ring plate 22, the amount of rotation of the upper seat back frame 14 is limited. Further, pins 26 and 27 are planted on both the left and right sides of the through hole 18 a of the reinforcing pipe 18, and coil springs 28 and 29 are stretched between the pins 26 and 27 and the left and right ends of the stopper plate 23. . The two coil springs 28 and 29 are provided to hold the upper seat back 11 in a position aligned with the lower seat back 12 as shown in FIG. 1 in a state where no external force is applied to the upper seat back 11.
[0011]
As shown in detail in FIGS. 6 and 7, the lock mechanism 30 includes a lock pin 31, a coil spring 32, a pair of upper and lower spring receivers 33 and 34, and a stopper ring 35, and a guide pin 36 is provided at the upper end of the lock pin 31. It has been planted. On the other hand, a guide slit 14a extending upward from the opening is formed on the outer periphery of the lower left end portion of the upper seat back frame 14, and an engagement recess 14b is continuously provided at the upper end portion of the guide slit 14a. A long hole 14c is formed along the circumferential direction above the upper end of the guide slit 14a, and an upper spring receiver 33 is fitted into the long hole 14c. The coil spring 32, the lower spring receiver 34, and the lock pin 31 are inserted from the opening at the lower left end of the upper seat back frame 14, and the guide pin 36 is slidably fitted in the guide slit 14a. Further, a stopper ring 35 is fitted on the outer periphery of the lower end portion of the upper seat back frame 14, and the lock pin 31 urged downward by the coil spring 32 prevents the guide pin 36 from coming into contact with the upper end of the stopper ring 35. Has been.
[0012]
Since the lock mechanism 30 has such a configuration, as shown in FIG. 7, the lock pin 31 protrudes from the lower end opening of the upper seat back frame 14 in a state where the guide pin 36 abuts against the stopper ring 35. The upper seat back frame 14 is locked to the lower seat back frame 15 by being fitted into the left upper end opening. On the other hand, when the guide pin 36 is lifted upward along the guide slit 14a against the spring force of the coil spring 32, the lock pin 31 is disengaged from the upper end opening of the lower seat back frame 15, so that the upper seat back frame 14 is unlocked. The Further, the unlocked state can be maintained by engaging the guide pin 36 with the engagement recess 14b.
[0013]
The lower seat back frame 15 and the upper seat back frame 14 are provided with S-shaped springs 41 for supporting the pads 40 (see FIGS. 1 and 2) and side support portions for supporting both sides of the seated person. Are fixed.
[0014]
The vehicle seat according to the present embodiment has the above configuration, and the operation thereof will be described next.
[0015]
1, 3 and 7, since the lock pin 31 is fitted in the upper end opening of the lower seat back frame 15, the upper seat back frame 14 is locked to the lower seat back frame 15, and FIG. As shown, the upper seat back 11 is aligned with the lower seat back 12 to support the back of the seated person.
[0016]
When the seated person turns back to pick up the load from the rear seat or to confirm the rear view, when the guide pin 36 is lifted against the spring 32 and engaged with the engagement recess, the lock pin 31 is moved to the lower seat back frame 15. outer Re Runode, upper seat back 11 is rotatable back and forth direction by a bolt 16 to the supporting shaft from. Therefore, when the left side portion of the upper seat back 11 is pushed backward with the back, the upper seat back 11 is twisted as shown in FIG. 2, so that the seated person can look back without being disturbed by the seat back SB.
[0017]
When the pressed back is separated from the upper seat back 11, the upper seat back 11 returns to a position where it is aligned with the lower seat back 12 by the spring force of the coil springs 28 and 29. Therefore, when the guide pin 36 is removed from the engagement recess, the lock pin 31 is lowered by the spring force of the spring 32 and is fitted to the lower seat back frame 15. As a result, the upper seat back 11 is locked to the lower seat back 12.
[0018]
As described above, the seat back SB of the vehicle seat according to the present embodiment is divided into upper and lower two upper seat back 11 and the lower seat back 12, supporting shaft bolt 16 provided in the middle portion of the lower seat back 12 since assembled pivotably upper seat back 11 to the front-rear direction to, looking back to release the lock by the lock mechanism 30 in a state where the occupant is seated, the coil springs 28, 29 against the spring force upper The seat back rotates 11 backwards. For this reason, the operation of taking the luggage of the rear seat while sitting and checking the rear view is not disturbed by the seat back SB, so that it becomes easy. Further, since the bolt 16 serving as the rotation center of the upper seat back 11 is provided in the middle portion of the lower seat back 12, the occupant can look back to either the left or right side. Further, since the rotation amount of the upper seat back is limited by the stopper plate 23 and the ring plate 22, it is possible to prevent the posture from collapsing when turned around.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view showing a vehicle seat according to an embodiment of the present invention.
FIG. 2 is a partially broken perspective view showing an operating state of the vehicle seat.
FIG. 3 is a perspective view showing an internal structure of a seat back in the vehicle seat.
FIG. 4 is an exploded perspective view showing the main part of the internal structure of the seat back in the vehicle seat.
FIG. 5 is a partially broken assembly view showing the main part of the internal structure of the seat back in the vehicle seat.
FIG. 6 is an exploded perspective view showing a lock mechanism in the vehicle seat.
FIG. 7 is an assembled cross-sectional view showing the lock mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Seat reclining mechanism, 11 ... Upper seat back, 12 ... Lower seat back, 13 ... Headrest, 14 ... Upper seat back frame, 14a ... Guide slit, 14b ... Engaging recess, 14c ... Long hole, 15 ... Lower seat back frame 16 ... bolts, 17 ... reinforcing pipes, 18 ... reinforcing pipes, 17a, 18a ... through holes, 19, 20, 24 ... washers, 21 ... collars, 22 ... ring plates, 23 ... stopper plates, 24 ... washers, 25 ... Nut, 26, 27 ... Pin, 28, 29 ... Coil spring, 30 ... Lock mechanism, 31 ... Lock pin, 32 ... Coil spring, 33, 34 ... Spring receiver, 35 ... Stopper ring, 36 ... Guide pin, 40 ... Pad 41 ... S-spring, 42,43 ... wire, S ... vehicle seat, B ... seat back.

Claims (1)

シートバックをアッパシートバックとロアシートバックの上下二つに分割し、ロアシートバックの中間部に設けた縦軸を支軸にしてアッパシートバックを前記縦軸回りに回動可能に組み付け、前記アッパシートバックとロアシートバックには前記縦軸と同軸的に設けられてＸ形の突起が形成されたリングプレートと前記Ｘ形の突起と係合して前記アッパシートバックの回動量を制限するストッパプレートを固定し、前記アッパシートバックを前記ロアシートバックと整列する位置に解除可能に連結するロック機構及び前記アッパシートバックを前記整列する位置に回動付勢する付勢手段を設けたことを特徴とする車両用シート。Dividing the seat back in the vertical two upper seat back and the lower seat back, assembled pivotably upper seat back to said longitudinal axis and a vertical axis which is provided in an intermediate portion of the lower seat back support shaft, the upper sheet The back plate and the lower seat back are provided with a ring plate provided coaxially with the longitudinal axis and formed with an X-shaped projection, and a stopper plate that engages with the X-shaped projection to limit the amount of rotation of the upper seat back. A locking mechanism for fixing and releasably connecting the upper seat back to a position aligned with the lower seat back and an urging means for urging the upper seat back to the aligned position are provided. Vehicle seat.
JP11541094A 1994-05-27 1994-05-27 Vehicle seat Expired - Lifetime JP3555175B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11541094A JP3555175B2 (en) 1994-05-27 1994-05-27 Vehicle seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11541094A JP3555175B2 (en) 1994-05-27 1994-05-27 Vehicle seat

Publications (2)

Publication Number Publication Date
JPH07315088A JPH07315088A (en) 1995-12-05
JP3555175B2 true JP3555175B2 (en) 2004-08-18

Family

ID=14661883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11541094A Expired - Lifetime JP3555175B2 (en) 1994-05-27 1994-05-27 Vehicle seat

Country Status (1)

Country Link
JP (1) JP3555175B2 (en)

Cited By (1)

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JP5195894B2 (en) * 2004-10-20 2013-05-15 日産自動車株式会社 Crew protection device
JP4736588B2 (en) * 2004-10-20 2011-07-27 日産自動車株式会社 Crew protection device
JP5018149B2 (en) 2006-04-26 2012-09-05 日産自動車株式会社 Driver feeling adjustment device
US8775018B2 (en) 2006-12-21 2014-07-08 Nissan Motor Co., Ltd. Driver's feeling control apparatus
JP2009131357A (en) * 2007-11-29 2009-06-18 Okamura Corp Chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11103069B2 (en) 2017-06-20 2021-08-31 Kokuyo Co., Ltd. Chair

Also Published As

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