JP2022095023A - Vehicular seat - Google Patents

Vehicular seat Download PDF

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JP2022095023A
JP2022095023A JP2020208100A JP2020208100A JP2022095023A JP 2022095023 A JP2022095023 A JP 2022095023A JP 2020208100 A JP2020208100 A JP 2020208100A JP 2020208100 A JP2020208100 A JP 2020208100A JP 2022095023 A JP2022095023 A JP 2022095023A
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seat
vehicle
shaped member
buckle
seat cushion
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JP7521406B2 (en
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宏紀 石井
Hironori Ishii
貴昭 杉山
Takaaki Sugiyama
寛之 楠田
Hiroyuki Kusuda
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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Abstract

To provide a vehicular seat which can inhibit a seat belt buckle from being movable on a seat cushion in a state that the seat is stored.SOLUTION: A vehicular seat includes a seat belt buckle 4, a belt-like member, and a restriction member 10. The seat belt buckle 4 is stored in a storage part recessed on an upper surface of a seat cushion 2a. The belt-like member extends from the seat belt buckle 4 to a space below the seat cushion 2a through the storage part 2d and is coupled to an anchor part 6 fixed to the vehicle body side. The restriction member 10 is provided having a predetermined length from a position, located near the anchor part 6, of the belt-like member along a longitudinal direction of the belt-like member and restricts bending of the belt-like member. The seat belt buckle 4 is disposed at a first position, which is spaced apart to the vehicle front from the anchor part 6, in a deployment state and is moved rearward from the first position toward the anchor part 6 and disposed at a second position located at the rear relative to a front end of the restriction member 10 in a storage state.SELECTED DRAWING: Figure 5

Description

本開示は、車両用シートに関する。 The present disclosure relates to vehicle seats.

従来、車両のユーザが着座可能な展開状態から、シートクッションが移動することによって収納状態となる車両用シートが知られている（例えば、特許文献１参照）。特許文献１の車両用シートは、シートクッションと、シートバックと、シートベルト（特許文献１では、ショルダーベルト）を係止するシートベルトバックルと、を備える。シートベルトバックルは、シートクッション上に配置され、帯状部材（特許文献１では、安全ベルト）およびアンカー部を介して床に固定される。特許文献１の車両用シートでは、ユーザが、収納時に、シートクッションを前側のヒンジ回りに倒立位置に移動させ、シートバックが後側のヒンジ回りに略水平位置に移動させる。これによって、シートが着座可能な展開状態から着座不能な収納状態となる。 Conventionally, there is known a vehicle seat that is stored by moving the seat cushion from the deployed state in which the user of the vehicle can be seated (see, for example, Patent Document 1). The vehicle seat of Patent Document 1 includes a seat cushion, a seat back, and a seat belt buckle for locking a seat belt (shoulder belt in Patent Document 1). The seatbelt buckle is arranged on the seat cushion and is fixed to the floor via a band-shaped member (safety belt in Patent Document 1) and an anchor portion. In the vehicle seat of Patent Document 1, the user moves the seat cushion to an inverted position around the front hinge and the seat back to a substantially horizontal position around the rear hinge at the time of storage. As a result, the seat can be changed from the unfolded state where it can be seated to the stowed state where it cannot be seated.

特開平６－２４２９１号公報Japanese Unexamined Patent Publication No. 6-24291

特許文献１の車両用シートでは、シートクッションが倒立位置に移動すると、シートクッションがアンカー部から離れる。このため、帯状部材の長さが不足し、シートベルトバックルがシートクッション上から落下するおそれがある。特許文献１の車両用シートは、シートベルトバックルが床に落下することを防止するため、ボックスを備える。ボックスは、シートクッションが倒立位置に移動した場合、シートベルトに係止されていないシートベルトバックルを収納する。 In the vehicle seat of Patent Document 1, when the seat cushion moves to the inverted position, the seat cushion separates from the anchor portion. Therefore, the length of the band-shaped member is insufficient, and the seatbelt buckle may fall from the seat cushion. The vehicle seat of Patent Document 1 includes a box in order to prevent the seatbelt buckle from falling to the floor. The box houses the seatbelt buckle that is not locked to the seatbelt when the seat cushion is moved to the inverted position.

しかし、シートを収納状態にする場合、シートクッションがアンカー部に近づく場合もある。このような場合、帯状部材の長さが余り、シートベルトバックルがシートクッション上を移動可能な状態となる。このような状態で、シートを展開状態に戻す場合、シートベルトバックルが帯状部材に引っ張られて移動し、シートクッション上の障害物、またはシートバックに引っ掛かるおそれがある。 However, when the seat is stored, the seat cushion may come close to the anchor portion. In such a case, the length of the band-shaped member is excessive, and the seatbelt buckle becomes movable on the seat cushion. When the seat is returned to the unfolded state in such a state, the seat belt buckle may be pulled by the band-shaped member and move, and may be caught by an obstacle on the seat cushion or the seat back.

本開示の課題は、シートが収納状態の場合において、シートベルトバックルがシートクッション上を移動可能な状態となることを抑制できる車両用シートを提供することにある。 An object of the present disclosure is to provide a vehicle seat capable of suppressing the seatbelt buckle from being movable on the seat cushion when the seat is in the stored state.

本開示に係る車両用シートは、シートバックをシートクッション上に折り畳む動作に連動して、シートクッションが車両後方かつ下方に移動されて、乗員が着座可能な展開状態から折り畳み収納された収納状態へ変位される車両用シートである。車両用シートは、シートベルトバックルと、帯状部材と、規制部材と、を備える。シートベルトバックルは、シートクッションの上面に凹設された収容部に収容される。帯状部材は、シートベルトバックルから収容部を貫通してシートクッションの下方に延び、車体側に固定されたアンカー部に連結される。規制部材は、帯状部材のアンカー部の近傍から帯状部材の長手方向に沿って所定の長さで設けられ、帯状部材の折れ曲がりを規制する。シートベルトバックルは、展開状態においてアンカー部から車両前方に離間された第１の位置に配置され、収納状態において第１の位置からアンカー部に近づくよう後退されて規制部材の前端よりも後方の第２の位置に配置される。 In the vehicle seat according to the present disclosure, the seat cushion is moved to the rear and downward of the vehicle in conjunction with the operation of folding the seat back onto the seat cushion, from the unfolded state in which the occupant can sit to the folded and stored storage state. It is a vehicle seat that is displaced. The vehicle seat includes a seatbelt buckle, a band-shaped member, and a regulating member. The seatbelt buckle is housed in a housing recessed in the upper surface of the seat cushion. The band-shaped member extends from the seatbelt buckle through the accommodating portion to the lower part of the seat cushion, and is connected to the anchor portion fixed to the vehicle body side. The regulating member is provided with a predetermined length from the vicinity of the anchor portion of the strip-shaped member along the longitudinal direction of the strip-shaped member, and regulates the bending of the strip-shaped member. The seatbelt buckle is arranged at the first position separated from the anchor portion in front of the vehicle in the deployed state, and is retracted from the first position toward the anchor portion in the retracted state to the rear of the front end of the regulating member. It is placed at the position of 2.

この車両用シートによれば、シートバックルが第２の位置に配置されることによって、帯状部材が規制部材の端部で折り曲げられ、規制部が帯状部材の余長を吸収する。このため、シートの収納状態において、帯状部材の余長によってシートベルトバックルがシートクッションの上面に飛び出し、移動することを抑制できる。 According to this vehicle seat, by arranging the seat buckle at the second position, the strip-shaped member is bent at the end portion of the restricting member, and the regulating portion absorbs the extra length of the strip-shaped member. Therefore, in the stored state of the seat, it is possible to prevent the seatbelt buckle from jumping out to the upper surface of the seat cushion and moving due to the extra length of the band-shaped member.

帯状部材は、展開状態のときにアンカー部から車両前方に延びてシートベルトバックルが収納部から抜け出さない長さに設定されていてもよい。車両用シートが収納状態のときには、規制部材で規制されていない第１の部分が規制部材で規制された第２の部分の上方で後方に折り返された状態となってもよい。 The band-shaped member may be set to a length that extends from the anchor portion to the front of the vehicle and the seat belt buckle does not come out of the storage portion in the deployed state. When the vehicle seat is in the stowed state, the first portion not regulated by the regulating member may be folded back above the second portion regulated by the regulating member.

この構成によれば、展開状態および収納状態において、収容部からシートクッション上にシートベルトバックルが抜け出ることをより確実に防止することができる。 According to this configuration, it is possible to more reliably prevent the seatbelt buckle from coming off from the accommodating portion on the seat cushion in the deployed state and the retracted state.

規制部材は、帯状部材が挿通可能な筒状に形成されてもよい。規制部材のアンカー部側の端部がアンカー部と重なるように設けられてもよい。 The regulating member may be formed in a cylindrical shape through which a strip-shaped member can be inserted. The end portion of the regulating member on the anchor portion side may be provided so as to overlap the anchor portion.

この構成によれば、アンカー部によって規制部材の動きを規制することができるため、規制部材の向きの変化を抑制することができる。これによって、特に収納状態において、規制部材のずれに伴う帯状部材の動きの発生を防止することができる。また、帯状部材が規制部材に挿通されることにより、上下左右方向への帯状部材の動きをより抑制することができる。 According to this configuration, since the movement of the regulating member can be regulated by the anchor portion, it is possible to suppress the change in the orientation of the regulating member. This makes it possible to prevent the band-shaped member from moving due to the displacement of the regulating member, especially in the stored state. Further, by inserting the band-shaped member into the regulating member, it is possible to further suppress the movement of the band-shaped member in the vertical and horizontal directions.

収納状態において、シートベルトバックルが規制部材に対して第１の部分を介して当接していてもよい。 In the stowed state, the seatbelt buckle may be in contact with the restricting member via the first portion.

この構成によれば、シートベルトバックルによって規制部材を上方から押さえつけることができるため、収納状態における規制部材の向きの変化をより確実に抑制することができる。 According to this configuration, since the restricting member can be pressed from above by the seatbelt buckle, it is possible to more reliably suppress the change in the orientation of the restricting member in the stored state.

帯状部材は、収容部に収容された際のシートベルトバックルとの連結部における面の向きが車幅方向であってもよい。帯状部材は、アンカー部との連結部における面の向きが上下方向であってもよい。帯状部材は、アンカー部との連結部からシートベルトバックルとの連結部に至るまでに９０度回転してもよい。シートベルトバックルは、収容部がシートクッションの車幅方向一端側に設けられていた場合、規制部材の車幅方向他端側にオフセットされて配置され、収容部がシートクッションの車幅方向他端側に設けられていた場合、規制部材の車幅方向一端側にオフセットされて配置されていてもよい。 The band-shaped member may be oriented in the vehicle width direction at the connecting portion with the seatbelt buckle when it is accommodated in the accommodating portion. The strip-shaped member may have a surface orientation in the vertical direction at the connecting portion with the anchor portion. The strip-shaped member may rotate 90 degrees from the connecting portion with the anchor portion to the connecting portion with the seat belt buckle. When the accommodating portion is provided on one end side in the vehicle width direction of the seat cushion, the seat belt buckle is offset to the other end side in the vehicle width direction of the regulating member, and the accommodating portion is arranged at the other end side in the vehicle width direction of the seat cushion. If it is provided on the side, it may be arranged offset to one end side in the vehicle width direction of the regulating member.

この構成によれば、回転部の急激なねじれを防止することができる。 According to this configuration, it is possible to prevent abrupt twisting of the rotating portion.

本開示によれば、シートが収納状態の場合において、シートベルトバックルがシートクッション上を移動可能な状態となることを抑制できる車両用シートを提供できる。 According to the present disclosure, it is possible to provide a vehicle seat capable of suppressing the seatbelt buckle from being movable on the seat cushion when the seat is in the stored state.

本開示の実施形態による車両用シートのシート展開状態における概略構成を示す図。The figure which shows the schematic structure in the seat unfolded state of the vehicle seat by embodiment of this disclosure. 本開示の実施形態による車両用シートのシート展開状態における挿通孔中央付近の断面視を示す図。The figure which shows the sectional view around the center of the insertion hole in the seat unfolded state of the vehicle seat by embodiment of this disclosure. 本開示の実施形態によるシートベルトバックル、帯状部材およびアンカー部の部品上面図。Top view of parts of a seatbelt buckle, a band-shaped member, and an anchor portion according to an embodiment of the present disclosure. 本開示の実施形態によるシートベルトバックル、帯状部材およびアンカー部の部品側面図。FIG. 3 is a side view of parts of a seatbelt buckle, a band-shaped member, and an anchor portion according to an embodiment of the present disclosure. 本開示の実施形態による車両用シートのシート収納状態における挿通孔中央付近の断面視を示す図、およびシートベルトバックル分の拡大図。The figure which shows the cross-sectional view near the center of the insertion hole in the seat retracted state of the vehicle seat by the embodiment of this disclosure, and the enlarged view of the seat belt buckle. 本開示の実施形態によるシート収納状態におけるシートベルトバックルと規制部材の位置関係を示す上面図、およびシートベルトバックル分の拡大図。The top view which shows the positional relationship between the seatbelt buckle and the regulation member in the seat retracted state by the embodiment of this disclosure, and the enlarged view of the seatbelt buckle.

以下、本開示の一実施形態について、図面を参照しながら説明する。なお、以下明細書において、車両の前後方向をＱと図面に記し、前方をＦと記す。また、車両の車幅方向（左右方向）をＰと図面に記し、車両の後方からみて右側をＲと記す。さらに、車両の上下方向をＧと図面に記し、上方をＵと記す。 Hereinafter, one embodiment of the present disclosure will be described with reference to the drawings. In the following specification, the front-rear direction of the vehicle is referred to as Q in the drawing, and the front is referred to as F. Further, the vehicle width direction (left-right direction) is indicated by P in the drawing, and the right side when viewed from the rear of the vehicle is indicated by R. Further, the vertical direction of the vehicle is marked as G in the drawing, and the upper direction is marked as U.

図１および図２に示すように、車両Ｃに搭載される車両用シート１は、シート本体２と、シートベルトバックル４と、アンカー部６と、帯状部材８と、規制部材１０と、を備える。図１に示すように、本実施形態の車両Ｃは、車両Ｃの図示しない一番前に配置される１列目シートと、１列目シートの後方に配置される２列目シート７と、２列目シート７の後方に配置されるシート本体２と、を備える３列シートの車両である。 As shown in FIGS. 1 and 2, the vehicle seat 1 mounted on the vehicle C includes a seat body 2, a seatbelt buckle 4, an anchor portion 6, a band-shaped member 8, and a regulating member 10. .. As shown in FIG. 1, the vehicle C of the present embodiment includes a first row seat arranged in front of the vehicle C (not shown), a second row seat 7 arranged behind the first row seat, and the like. It is a vehicle with three rows of seats including a seat body 2 arranged behind the second row seats 7.

車両Ｃは、後部に凹部５を有する。凹部５は、車両Ｃのフロアパネル３が下方に凹ませて設けられる。凹部５には、シート本体２と、シート本体２の下方に配置されるスペアタイヤ１２が設けられる。本実施形態ではシート本体２は、車幅方向Ｐに並んで２つ配置され、車幅方向Ｐの車両内側に、シートベルトバックル４がそれぞれ配置される（図６参照）。 The vehicle C has a recess 5 at the rear. The recess 5 is provided so that the floor panel 3 of the vehicle C is recessed downward. The recess 5 is provided with a seat body 2 and a spare tire 12 arranged below the seat body 2. In the present embodiment, two seat body 2s are arranged side by side in the vehicle width direction P, and seatbelt buckles 4 are arranged inside the vehicle in the vehicle width direction P (see FIG. 6).

シート本体２は、シートクッション２ａと、シートバック２ｂと、を有する。シートクッション２ａは、車両Ｃのユーザが着座する座面として機能する。本実施形態では、シートクッション２ａの後部は、シートフレーム２ｃに後部リンク機構１４を介して支持される。シートクッション２ａの前部は、前部リンク機構１６を介してフロアパネル３に支持される。後部リンク機構１４および前部リンク機構１６は、シート本体２のシートクッション２ａがアンカー部６に移動可能に支持する。また、本実施形態ではシート本体２は、前部リンク機構１６を支点としてシート本体２の後部およびシートフレーム２ｃが上方に回動する。このように、シート本体２およびシートフレーム２ｃが回動することで、シート本体２の下方にあるスペアタイヤ１２をユーザが取り出すことができる。 The seat body 2 has a seat cushion 2a and a seat back 2b. The seat cushion 2a functions as a seating surface on which the user of the vehicle C sits. In the present embodiment, the rear portion of the seat cushion 2a is supported by the seat frame 2c via the rear link mechanism 14. The front portion of the seat cushion 2a is supported by the floor panel 3 via the front link mechanism 16. The rear link mechanism 14 and the front link mechanism 16 movably support the seat cushion 2a of the seat body 2 to the anchor portion 6. Further, in the present embodiment, in the seat body 2, the rear portion of the seat body 2 and the seat frame 2c rotate upward with the front link mechanism 16 as a fulcrum. By rotating the seat body 2 and the seat frame 2c in this way, the user can take out the spare tire 12 below the seat body 2.

図２に示すように、シートクッション２ａは、上面に凹設されシートベルトバックル４が収容可能な収容部２ｄを含む。収容部２ｄは、シートクッション２ａがシートベルトバックル４の形状に合わせて繰りぬかれて形成されるとともに、下部に帯状部材８が挿通可能なスリットが設けられる。収容部２ｄは、シートベルトバックル４の前後方向Ｑおよび車幅方向Ｐを保持するとともに、シートベルトバックル４を収納するポケットとして機能する。シートバック２ｂは、リクライニング機構２ｆを介してシートクッション２ａに支持され、シートクッション２ａに対し回動可能に設けられる。 As shown in FIG. 2, the seat cushion 2a includes an accommodating portion 2d recessed on the upper surface and accommodating the seatbelt buckle 4. The accommodating portion 2d is formed by hollowing out the seat cushion 2a according to the shape of the seat belt buckle 4, and is provided with a slit at the lower portion through which the band-shaped member 8 can be inserted. The accommodating portion 2d holds the seatbelt buckle 4 in the front-rear direction Q and the vehicle width direction P, and functions as a pocket for accommodating the seatbelt buckle 4. The seat back 2b is supported by the seat cushion 2a via the reclining mechanism 2f, and is rotatably provided with respect to the seat cushion 2a.

シートベルトバックル４は、図示しないショルダーベルトに接続されるタングプレートを係止するために設けられる。図３および図４に示すように、シートベルトバックル４は、断面略長方形の樹脂部材であり、上面４ａに開口してタングプレートが差し込まれるスリット４ｂが設けられる。シートベルトバックル４内部には、タングプレートをロックするための図示しないロック機構が設けられ、スリット４ｂに差し込まれたタングプレートを係止する。図２に示すように、シートベルトバックル４は、シートクッション２ａに着座した車両Ｃのユーザがタングプレートを差し込み操作しやすいように、シートベルトバックル４の上面４ａがシートクッション２ａの上面２ｅに臨んで配置される。また、シートベルトバックル４は、断面長方形の長手方向が前後方向Ｑに沿って配置される。すなわち、スリット４ｂが前後方向Ｑに沿って配置される（図６参照）。 The seatbelt buckle 4 is provided to lock a tongue plate connected to a shoulder belt (not shown). As shown in FIGS. 3 and 4, the seatbelt buckle 4 is a resin member having a substantially rectangular cross section, and is provided with a slit 4b which is opened in the upper surface 4a and into which a tongue plate is inserted. A lock mechanism (not shown) for locking the tongue plate is provided inside the seatbelt buckle 4 to lock the tongue plate inserted into the slit 4b. As shown in FIG. 2, in the seatbelt buckle 4, the upper surface 4a of the seatbelt buckle 4 faces the upper surface 2e of the seat cushion 2a so that the user of the vehicle C seated on the seat cushion 2a can easily insert and operate the tongue plate. Placed in. Further, the seatbelt buckle 4 is arranged so that the longitudinal direction of the rectangular cross section is along the front-rear direction Q. That is, the slits 4b are arranged along the front-rear direction Q (see FIG. 6).

図３および図４に示すように、アンカー部６には、Ｌ字型の板状の金属部材にアンカーボルト６ａ（図２参照）を差し込むための貫通孔６ｂが設けられる。アンカー部６は、車両Ｃが衝突した際にシートベルトバックル４にかかる負荷を車両Ｃに伝達する。本実施形態ではアンカー部６は、シートフレーム２ｃに固定される。しかし、アンカー部６は、車両Ｃのフロアパネル３に直接固定されてもよい。図２に示すように、アンカー部６は、シートフレーム２ｃに固定された状態において、シートクッション２ａよりも後方かつ下方に配置される。 As shown in FIGS. 3 and 4, the anchor portion 6 is provided with a through hole 6b for inserting an anchor bolt 6a (see FIG. 2) into an L-shaped plate-shaped metal member. The anchor portion 6 transmits the load applied to the seatbelt buckle 4 to the vehicle C when the vehicle C collides. In this embodiment, the anchor portion 6 is fixed to the seat frame 2c. However, the anchor portion 6 may be directly fixed to the floor panel 3 of the vehicle C. As shown in FIG. 2, the anchor portion 6 is arranged behind and below the seat cushion 2a in a state of being fixed to the seat frame 2c.

帯状部材８は、シートベルトバックル４から収容部２ｄおよび収容部２ｄの下部のスリットを貫通してシートクッション２ａの下方に延び、車体側に固定されたアンカー部６に連結される。帯状部材８は、ポリエステルなどの高強度繊維を編み込んで帯状（ベルト状）に形成される。本実施形態では、帯状部材８は、車両用シート１が展開状態のときにアンカー部６から車両前方に延びてシートベルトバックル４が収納部から抜け出さない長さに設定されている。図３および図４に示すように、帯状部材８の一端８ａは、シートベルトバックル４に長円形に設けられたバックル側ベルト挿通孔４ｃに帯状部材８を掛け回すことで、シートベルトバックル４と接続される。帯状部材８の他端８ｂは、アンカー部６に設けられたアンカー側ベルト挿通孔６ｃに帯状部材８を掛け回すことで、アンカー部６と接続される。 The band-shaped member 8 extends from the seatbelt buckle 4 to the lower part of the seat cushion 2a through the slits at the lower part of the accommodating portion 2d and the accommodating portion 2d, and is connected to the anchor portion 6 fixed to the vehicle body side. The band-shaped member 8 is formed in a band shape (belt shape) by knitting high-strength fibers such as polyester. In the present embodiment, the band-shaped member 8 is set to a length that extends from the anchor portion 6 to the front of the vehicle and the seat belt buckle 4 does not come out of the storage portion when the vehicle seat 1 is in the deployed state. As shown in FIGS. 3 and 4, one end 8a of the band-shaped member 8 is formed by hooking the band-shaped member 8 around the buckle-side belt insertion hole 4c provided in the seatbelt buckle 4 in an oval shape to form the seatbelt buckle 4. Be connected. The other end 8b of the band-shaped member 8 is connected to the anchor portion 6 by hanging the band-shaped member 8 around the anchor-side belt insertion hole 6c provided in the anchor portion 6.

帯状部材８は、収容部２ｄに収容された際のシートベルトバックル４との連結部における面の向きが車幅方向Ｐである。帯状部材８は、アンカー部６との連結部における面の向きが上下方向Ｇである。帯状部材８は、アンカー部６との連結部からシートベルトバックル４との連結部に至るまでに９０度回転する。より具体的には、帯状部材８は、車両Ｃに配置された状態において、帯面８ｃが前後方向Ｑに延びる状態でシートベルトバックル４に連結部を介して接続される。一方、帯状部材８は、アンカー部６と帯面８ｃが車幅方向Ｐに延びる状態で連結部を介して接続される。このため、帯状部材８は、９０度回転して配置される。 The direction of the surface of the band-shaped member 8 at the connecting portion with the seatbelt buckle 4 when it is accommodated in the accommodating portion 2d is the vehicle width direction P. The direction of the surface of the strip-shaped member 8 at the connecting portion with the anchor portion 6 is the vertical direction G. The band-shaped member 8 rotates 90 degrees from the connecting portion with the anchor portion 6 to the connecting portion with the seatbelt buckle 4. More specifically, the band-shaped member 8 is connected to the seatbelt buckle 4 via a connecting portion in a state where the band surface 8c extends in the front-rear direction Q in a state of being arranged on the vehicle C. On the other hand, the strip-shaped member 8 is connected via the connecting portion in a state where the anchor portion 6 and the strip surface 8c extend in the vehicle width direction P. Therefore, the strip-shaped member 8 is arranged by rotating it by 90 degrees.

規制部材１０は、帯状部材８のアンカー部６の近傍から帯状部材８の長手方向に沿って所定の長さで設けられ、帯状部材８の折れ曲がりを規制する。規制部材１０は、角筒状の樹脂で形成され、帯状部材８を覆う。規制部材１０は、上面１０ａに貫通孔１０ｂを有する。規制部材１０は、帯状部材８と縫い合わされた糸が貫通孔１０ｂを通ることで、帯状部材８と固定される。帯状部材８は、規制部材１０の筒の内部に挿通することで、帯状部材８の折れ曲がりが規制される。本実施形態では、規制部材１０のアンカー側端部（後方端部）１０ｃが、アンカー部６と重ねて配置され、規制部材１０がアンカー部６に当接することで、規制部材１０の上下方向Ｇの移動が規制される。これによって、特にシート本体２の収納状態において、規制部材１０のずれに伴う帯状部材８の動きの発生を防止することができる。また、帯状部材８が規制部材１０に挿通されることにより、上下方向Ｇおよび車幅方向（左右方向）Ｐへの帯状部材８の動きをより抑制することができる。 The regulating member 10 is provided with a predetermined length from the vicinity of the anchor portion 6 of the strip-shaped member 8 along the longitudinal direction of the strip-shaped member 8 to regulate the bending of the strip-shaped member 8. The regulating member 10 is formed of a square tubular resin and covers the strip-shaped member 8. The regulating member 10 has a through hole 10b on the upper surface 10a. The regulating member 10 is fixed to the strip-shaped member 8 by passing the thread sewn with the strip-shaped member 8 through the through hole 10b. By inserting the band-shaped member 8 into the inside of the cylinder of the regulating member 10, the bending of the band-shaped member 8 is restricted. In the present embodiment, the anchor side end portion (rear end portion) 10c of the regulating member 10 is arranged so as to overlap with the anchor portion 6, and the regulating member 10 abuts on the anchor portion 6 in the vertical direction G of the regulating member 10. Movement is restricted. This makes it possible to prevent the band-shaped member 8 from moving due to the displacement of the regulating member 10, especially in the stored state of the seat body 2. Further, by inserting the band-shaped member 8 through the regulating member 10, it is possible to further suppress the movement of the band-shaped member 8 in the vertical direction G and the vehicle width direction (left-right direction) P.

規制部材１０の長さ（帯状部材８に沿った方向の長さ）は、帯状部材８の長さよりも短い。すなわち、規制部材１０が車両Ｃに配置された状態では、規制部材１０のバックル側端部１０ｄは、帯状部材８の一端８аよりも後方となる。帯状部材８は、規制部材１０のバックル側端部１０ｄから帯面８ｃが上下方向Ｇから車幅方向Ｐに向くように９０度回転して延び、シートクッション２ａの収容部２ｄに配置されたシートベルトバックル４に連結部を介して接続される。 The length of the restricting member 10 (the length in the direction along the strip-shaped member 8) is shorter than the length of the strip-shaped member 8. That is, in the state where the regulating member 10 is arranged on the vehicle C, the buckle side end portion 10d of the regulating member 10 is behind one end 8а of the strip-shaped member 8. The band-shaped member 8 extends from the buckle-side end portion 10d of the regulating member 10 by rotating the band surface 8c by 90 degrees so that the band surface 8c faces from the vertical direction G to the vehicle width direction P, and is arranged in the accommodating portion 2d of the seat cushion 2a. It is connected to the belt buckle 4 via a connecting portion.

図５に示すように、車両用シート１は、シート本体２のシートバック２ｂをシートクッション２ａ上に折り畳む動作に連動して、シートクッション２ａが車両後方かつ下方に移動されて、乗員が着座可能な展開状態から折り畳み収納された収納状態へ変位される。このため、シート本体２は、収納状態においてシートバック２ｂがシートクッション２ａに向けて倒れることによって、シートバック２ｂの背面２ｇが荷室床面として機能する。 As shown in FIG. 5, in the vehicle seat 1, the seat cushion 2a is moved to the rear and downward of the vehicle in conjunction with the operation of folding the seat back 2b of the seat body 2 onto the seat cushion 2a, so that the occupant can sit down. It is displaced from the unfolded state to the folded and stored storage state. Therefore, in the seat body 2, the seat back 2b tilts toward the seat cushion 2a in the stored state, so that the back surface 2g of the seat back 2b functions as the luggage compartment floor surface.

シートベルトバックル４は、シート本体２の展開状態においてアンカー部６から車両前方に離間された第１の位置に配置される（図２参照）。一方、シートベルトバックル４は、シート本体２が収納状態において第１の位置からアンカー部に近づくよう後退されて規制部材１０の前端（バックル側端部１０ｄ）よりも後方の第２の位置に配置される。 The seatbelt buckle 4 is arranged at a first position separated from the anchor portion 6 in front of the vehicle in the unfolded state of the seat body 2 (see FIG. 2). On the other hand, the seatbelt buckle 4 is retracted so that the seat body 2 approaches the anchor portion from the first position in the stored state, and is arranged at the second position behind the front end (buckle side end portion 10d) of the regulating member 10. Will be done.

図５に拡大して示すように、シート本体２が収納状態の場合、規制部材１０は、シートベルトバックル４の下方に配置される。帯状部材は、シート本体２が収納状態のときには、規制部材１０で規制されていない第１の部分が規制部材１０で規制された第２の部分の上方で後方に折り返された状態となる。より具体的には、帯状部材８は、アンカー部６から前方Ｆに向けて延び、規制部材１０のバックル側端部１０ｄにおいて第１の部分が規制部材１０の上面１０ａに向けて折り返す。帯状部材８は、シートベルトバックル４に向けて上方に９０度回転して伸び、シートベルトバックル４に接続される。このように、帯状部材８が規制部材１０のバックル側端部１０ｄにおいて折り返して延びることで、シート本体２が収納状態の場合に帯状部材８の余長を吸収できる。 As shown in an enlarged manner in FIG. 5, when the seat body 2 is in the retracted state, the regulating member 10 is arranged below the seat belt buckle 4. When the seat body 2 is in the retracted state, the strip-shaped member is in a state in which the first portion not regulated by the regulating member 10 is folded backward above the second portion regulated by the regulating member 10. More specifically, the strip-shaped member 8 extends from the anchor portion 6 toward the front F, and the first portion of the buckle side end portion 10d of the regulating member 10 is folded back toward the upper surface 10a of the regulating member 10. The band-shaped member 8 rotates 90 degrees upward toward the seatbelt buckle 4 and extends, and is connected to the seatbelt buckle 4. In this way, the strip-shaped member 8 is folded back and extended at the buckle-side end portion 10d of the restricting member 10, so that the extra length of the strip-shaped member 8 can be absorbed when the seat body 2 is in the retracted state.

また、シートベルトバックル４が規制部材１０に対して第１の部分を介して当接する。これによって、シートベルトバックル４によって規制部材１０を上方から押さえつけることができるため、収納状態における規制部材１０の向きの変化をより確実に抑制できる。 Further, the seatbelt buckle 4 comes into contact with the regulating member 10 via the first portion. As a result, the seat belt buckle 4 can press the regulating member 10 from above, so that the change in the orientation of the regulating member 10 in the stored state can be suppressed more reliably.

図６に示すように、シートベルトバックル４は、収容部２ｄがシートクッション２ａの車幅方向一端側に設けられていた場合、規制部材１０の車幅方向他端側にオフセットされて配置され、収容部２ｄがシートクッション２ａの車幅方向他端側に設けられていた場合、規制部材１０の車幅方向一端側にオフセットされて配置されている。本実施形態では、車幅方向Ｐの右側のシート本体２のシートベルトバックル４は、上面視において規制部材１０の車幅方向Ｐの中央に対し、車幅方向Ｐの左側にオフセットして配置される。一方、車幅方向Ｐの左側のシート本体２のシートベルトバックル４は、上面視において規制部材１０の車幅方向Ｐの中央に対し、車幅方向Ｐの右側にオフセットして配置される。このように、シートベルトバックル４が車幅方向Ｐのいずれか一方にオフセットして配置されることによって、帯状部材８が９０度回転する回転部において、急激なねじれを防止できる。この結果、帯状部材８の規制部材１０のバックル側端部１０ｄからシートベルトバックル４までの間（第１の部分）において、帯状部材８の余長を吸収しやすい。 As shown in FIG. 6, when the accommodating portion 2d is provided on one end side in the vehicle width direction of the seat cushion 2a, the seat belt buckle 4 is arranged offset to the other end side in the vehicle width direction of the regulating member 10. When the accommodating portion 2d is provided on the other end side of the seat cushion 2a in the vehicle width direction, the accommodating portion 2d is offset to one end side in the vehicle width direction of the regulating member 10. In the present embodiment, the seatbelt buckle 4 of the seat body 2 on the right side in the vehicle width direction P is arranged offset to the left side in the vehicle width direction P with respect to the center of the vehicle width direction P of the restricting member 10 in the top view. To. On the other hand, the seatbelt buckle 4 of the seat body 2 on the left side in the vehicle width direction P is arranged offset to the right side in the vehicle width direction P with respect to the center of the vehicle width direction P of the regulating member 10 in the top view. By arranging the seatbelt buckle 4 offset to either one of the vehicle width directions P in this way, it is possible to prevent abrupt twisting in the rotating portion where the band-shaped member 8 rotates 90 degrees. As a result, the extra length of the strip-shaped member 8 is likely to be absorbed between the buckle-side end portion 10d of the strip-shaped member 8 and the seatbelt buckle 4 (first portion).

また、規制部材１０の上面１０ａの車幅方向Ｐの長さは、収容部２ｄのスリットの車幅方向Ｐの長さよりも長い。さらに、規制部材１０の上面１０ａの前後方向Ｑの長さは、収容部２ｄのスリットの前後方向Ｑの長さよりも長い。すなわち、規制部材１０の上面１０ａの面積は、収容部２ｄのスリットの断面積より大きい。これによって、規制部材１０は収容部２ｄのスリットに引っ掛かる。この結果、規制部材１０が収容部２ｄに進入することがない。 Further, the length of the upper surface 10a of the regulating member 10 in the vehicle width direction P is longer than the length of the slit of the accommodating portion 2d in the vehicle width direction P. Further, the length of the upper surface 10a of the regulating member 10 in the front-rear direction Q is longer than the length of the slit in the accommodating portion 2d in the front-rear direction Q. That is, the area of the upper surface 10a of the regulating member 10 is larger than the cross-sectional area of the slit of the accommodating portion 2d. As a result, the regulating member 10 is caught in the slit of the accommodating portion 2d. As a result, the regulating member 10 does not enter the accommodating portion 2d.

このように、帯状部材８の余長が吸収されることによって、シートベルトバックル４が収容部２ｄから飛び出すことを防止できる。これによって、シートベルトバックル４がシートクッション２ａの上面２ｅを移動することを抑制できる。この結果、シート本体２の収納時にシートベルトバックル４がシートバック２ｂに挟まれることを防止できる。また、シート本体２を収納状態から展開状態に戻す時に、シートベルトバックル４が移動し、シートクッション２ａの上面２ｅに置かれた障害物やシートバック２ｂに引っ掛かることを防止できる。 By absorbing the extra length of the band-shaped member 8 in this way, it is possible to prevent the seatbelt buckle 4 from popping out from the accommodating portion 2d. As a result, it is possible to prevent the seatbelt buckle 4 from moving on the upper surface 2e of the seat cushion 2a. As a result, it is possible to prevent the seat belt buckle 4 from being pinched by the seat back 2b when the seat body 2 is stored. Further, when the seat body 2 is returned from the stored state to the unfolded state, the seat belt buckle 4 can be prevented from moving and being caught by an obstacle placed on the upper surface 2e of the seat cushion 2a or the seat back 2b.

以上説明した通り、本開示によれば、シート本体２が収納状態の場合において、シートベルトバックル４がシートクッション２ａ上を移動可能な状態となることを抑制できる車両用シート１を提供できる。 As described above, according to the present disclosure, it is possible to provide a vehicle seat 1 capable of suppressing the seat belt buckle 4 from being movable on the seat cushion 2a when the seat body 2 is in the stored state.

＜他の実施形態＞
以上、本開示の実施形態について説明したが、本開示は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。特に、本明細書に書かれた複数の変形例は必要に応じて任意に組合せ可能である。 <Other embodiments>
Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments, and various changes can be made without departing from the gist of the invention. In particular, the plurality of modifications described in the present specification can be arbitrarily combined as needed.

（ａ）上記実施形態では、アンカー部６は、シートフレーム２ｃに固定された状態において、シートクッション２ａよりも後方かつ下方に配置される例を用いて説明したが、本開示はこれに限定されない。アンカー部６がシートクッション２ａよりも下方にあり、かつ車両用シートを展開状態から収納状態にした際に帯状部材８に余長が発生する位置にアンカー部６が配置される場合、本開示の車両用シート１を用いてもよい。 (A) In the above embodiment, the anchor portion 6 has been described with reference to an example in which the anchor portion 6 is arranged behind and below the seat cushion 2a in a state of being fixed to the seat frame 2c, but the present disclosure is not limited thereto. .. In the present disclosure, when the anchor portion 6 is located below the seat cushion 2a and the anchor portion 6 is arranged at a position where an extra length is generated in the strip-shaped member 8 when the vehicle seat is moved from the deployed state to the stored state. The vehicle seat 1 may be used.

（ｂ）上記実施形態では、３列目のシート本体２を例に説明したが、本開示はこれに限定されない。本開示の車両用シート１を２列目シート７に用いてもよい。 (B) In the above embodiment, the seat body 2 in the third row has been described as an example, but the present disclosure is not limited to this. The vehicle seat 1 of the present disclosure may be used for the second row seat 7.

（ｃ）上記実施形態では、３列目のシート本体２が荷室の利便性を向上させるために、左右方向に分割されて配置されたが、シート本体２は、左右方向に一体的に配置されてもよい。 (C) In the above embodiment, the seat body 2 in the third row is divided and arranged in the left-right direction in order to improve the convenience of the luggage compartment, but the seat body 2 is integrally arranged in the left-right direction. May be done.

１：車両用シート，２ａ：シートクッション，２ｂ：シートバック
２ｄ：収容部，２ｅ：上面，４：シートベルトバックル
６：アンカー部，８：帯状部材，８ｃ：帯面
１０：規制部材，Ｃ：車両，Ｐ：車幅方向，Ｑ：前後方向，Ｇ：上下方向 1: Vehicle seat, 2a: Seat cushion, 2b: Seat back 2d: Accommodating part, 2e: Top surface, 4: Seat belt buckle 6: Anchor part, 8: Band-shaped member, 8c: Band surface 10: Regulatory member, C: Vehicle, P: vehicle width direction, Q: front-rear direction, G: vertical direction

Claims (5)

シートバックをシートクッション上に折り畳む動作に連動して、前記シートクッションが車両後方かつ下方に移動されて、乗員が着座可能な展開状態から折り畳み収納された収納状態へ変位される車両用シートであって、
前記シートクッションの上面に凹設された収容部に収容されるシートベルトバックルと、
前記シートベルトバックルから前記収容部を貫通して前記シートクッションの下方に延び、車体側に固定されたアンカー部に連結される帯状部材と、
前記帯状部材の前記アンカー部の近傍から前記帯状部材の長手方向に沿って所定の長さで設けられ、前記帯状部材の折れ曲がりを規制する規制部材と、
を備え、
前記シートベルトバックルは、前記展開状態において前記アンカー部から車両前方に離間された第１の位置に配置され、前記収納状態において前記第１の位置から前記アンカー部に近づくよう後退されて前記規制部材の前端よりも後方の第２の位置に配置される、
車両用シート。 A vehicle seat in which the seat cushion is moved to the rear and downward of the vehicle in conjunction with the operation of folding the seat back onto the seat cushion, and is displaced from the unfolded state in which the occupant can sit to the folded and stored storage state. hand,
A seatbelt buckle housed in a housing portion recessed in the upper surface of the seat cushion, and a seatbelt buckle.
A band-shaped member extending from the seatbelt buckle through the accommodating portion to the lower part of the seat cushion and connected to an anchor portion fixed to the vehicle body side.
A regulating member provided with a predetermined length from the vicinity of the anchor portion of the strip-shaped member along the longitudinal direction of the strip-shaped member to regulate bending of the strip-shaped member, and
Equipped with
The seatbelt buckle is arranged at a first position separated from the anchor portion in front of the vehicle in the deployed state, and is retracted so as to approach the anchor portion from the first position in the retracted state. Located in a second position behind the front edge of the,
Vehicle seat. 前記帯状部材は、前記展開状態のときに前記アンカー部から車両前方に延びて前記シートベルトバックルが前記収容部から抜け出さない長さに設定されており、
前記車両用シートが前記収納状態のときには、前記規制部材で規制されていない第１の部分が前記規制部材で規制された第２の部分の上方で後方に折り返された状態となる、
請求項１に記載の車両用シート。 The band-shaped member is set to a length that extends from the anchor portion to the front of the vehicle and the seat belt buckle does not come out of the accommodating portion in the deployed state.
When the vehicle seat is in the retracted state, the first portion not regulated by the restricting member is folded backward above the second portion regulated by the regulating member.
The vehicle seat according to claim 1. 前記規制部材は、前記帯状部材が挿通可能な筒状に形成され、当該規制部材の前記アンカー部側の端部が前記アンカー部と重なるように設けられている、
請求項１または２に記載の車両用シート。 The restricting member is formed in a cylindrical shape through which the strip-shaped member can be inserted, and is provided so that an end portion of the restricting member on the anchor portion side overlaps with the anchor portion.
The vehicle seat according to claim 1 or 2. 前記収納状態において、前記シートベルトバックルが前記規制部材に対して前記第１の部分を介して当接している、
請求項１から３の何れか１項に記載の車両用シート。 In the stowed state, the seatbelt buckle is in contact with the restricting member via the first portion.
The vehicle seat according to any one of claims 1 to 3. 前記帯状部材は、前記収容部に収容された際の前記シートベルトバックルとの連結部における面の向きが車幅方向であって、前記アンカー部との連結部における面の向きが上下方向であって、前記アンカー部との連結部から前記シートベルトバックルとの連結部に至るまでに９０度回転し、
前記シートベルトバックルは、前記収容部が前記シートクッションの車幅方向一端側に設けられていた場合、前記規制部材の車幅方向他端側にオフセットされて配置され、前記収容部が前記シートクッションの車幅方向他端側に設けられていた場合、前記規制部材の車幅方向一端側にオフセットされて配置されている、
請求項１から４のいずれか１項に記載の車両用シート。 When the band-shaped member is housed in the housing portion, the direction of the surface at the connecting portion with the seatbelt buckle is the vehicle width direction, and the direction of the surface at the connecting portion with the anchor portion is the vertical direction. Then, it is rotated 90 degrees from the connecting portion with the anchor portion to the connecting portion with the seat belt buckle.
When the accommodating portion is provided on one end side in the vehicle width direction of the seat cushion, the seat belt buckle is arranged so as to be offset to the other end side in the vehicle width direction of the restricting member, and the accommodating portion is provided on the seat cushion. When it is provided on the other end side in the vehicle width direction, the restricting member is offset to one end side in the vehicle width direction.
The vehicle seat according to any one of claims 1 to 4.
JP2020208100A 2020-12-16 2020-12-16 Vehicle seat Active JP7521406B2 (en)

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* Cited by examiner, † Cited by third party
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JP2005178701A (en) 2003-12-24 2005-07-07 Toyota Boshoku Corp Seat for automobile
JP5233502B2 (en) 2008-08-22 2013-07-10 日産自動車株式会社 Crew protection device
JP2012081928A (en) 2010-10-14 2012-04-26 Honda Motor Co Ltd Vehicle seat
JP5906964B2 (en) 2012-06-28 2016-04-20 日産自動車株式会社 Buckle holding structure
JP6108883B2 (en) 2013-03-07 2017-04-05 テイ・エス テック株式会社 Vehicle seat
JP6148220B2 (en) 2014-10-17 2017-06-14 テイ・エス テック株式会社 Vehicle seat
US10486566B2 (en) 2016-10-05 2019-11-26 Adient Luxembourg Holding S.à.r.l. Vehicle seat cushion trim and seat belt buckle arrangement with elastic return

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