JP2022170775A - Seat for vehicle - Google Patents

Seat for vehicle Download PDF

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Publication number
JP2022170775A
JP2022170775A JP2021076953A JP2021076953A JP2022170775A JP 2022170775 A JP2022170775 A JP 2022170775A JP 2021076953 A JP2021076953 A JP 2021076953A JP 2021076953 A JP2021076953 A JP 2021076953A JP 2022170775 A JP2022170775 A JP 2022170775A
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Prior art keywords
vehicle
connecting member
occupant
seat
shaft member
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Japanese (ja)
Inventor
隆 中村
Takashi Nakamura
嘉明 森田
Yoshiaki Morita
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Imasen Electric Industrial Co Ltd
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Imasen Electric Industrial Co Ltd
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Priority to JP2021076953A priority Critical patent/JP2022170775A/en
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Abstract

To provide a comfortable seat for a vehicle by reducing inclination of an occupant when the vehicle travels on a curve.SOLUTION: A seat for a vehicle is configured so that a connection member 30 turns accompanied with turn of a shaft member 32 by turning the shaft member 32 by drive of driving means 34 and pressurizes a support elastic member 28 in an upward direction or a downward direction. Therefore, the seat for the vehicle can reduce inclination to a curving direction of an occupant and reduces fluctuation accompanied with travel of the vehicle, and hence enhances comfortableness of the occupant by turning the shaft member 32 in a direction opposed to a direction in which the vehicle travels on a curve.SELECTED DRAWING: Figure 3

Description

本発明は、車両用シートに関する。 The present invention relates to a vehicle seat.

従来、着座乗員の車両左右方向の揺動を抑制することができる車両用シートが知られている。例えば、特許文献１では、右板材及び左板材と、左板材、右板材を支持する支持部材と、支持部材を連動させる連接部材とを有するスタビライザーを備えたシートクッションが記載されている。このシートクッションは、右板材と左板材とを連動させるスタビライザーをシートクッションに備えるため、着座乗員の車両左右方向の揺動を抑制することができる。 2. Description of the Related Art Conventionally, there is known a vehicle seat capable of suppressing rocking of a seated occupant in the left-right direction of the vehicle. For example, Patent Literature 1 describes a seat cushion provided with a stabilizer having right and left plate members, supporting members that support the left and right plate members, and connecting members that interlock the supporting members. Since this seat cushion is provided with a stabilizer that interlocks the right plate member and the left plate member, it is possible to suppress the lateral movement of the seated occupant.

特開２０２０－２９１８１号公報Japanese Patent Application Laid-Open No. 2020-29181

しかしながら、特許文献１に記載の車両用シートでは、弾性体の弾性力の範囲内でしか揺動を抑制することができず、揺動の抑制が十分ではないという課題がある。 However, the vehicle seat described in Patent Document 1 has a problem in that it is possible to suppress rocking motion only within the range of the elastic force of the elastic body, and the suppression of rocking motion is not sufficient.

本発明は、このような課題に鑑みなされたものであり、車両の走行状況に即して、車両用シートの揺動を低減することで、乗員の快適さを向上することができる車両用シートを提供することを主目的とする。 SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and provides a vehicle seat capable of improving the comfort of the occupant by reducing the swinging of the vehicle seat according to the driving conditions of the vehicle. The main purpose is to provide

本発明は、上述の主目的を達成するために以下の手段を採った。 The present invention employs the following means in order to achieve the above main object.

本発明の車両用シートは、
乗員が着座するシートクッションを有する車両用シートであって、
前記シートクッションの前方下側に位置し、前記シートクッションを支持する前方支持部材と、
前記シートクッションの後方下側に位置し、前記シートクッションを支持する後方支持部材と、
前記前方支持部材と前記後方支持部材との間に設けられた一対の支持弾性部材と、
前記一対の支持弾性部材を連結する連結部材と、
前記連結部材と連接し、前記連結部材を回動する軸部材と、
車両の走行に関する情報に基づいて駆動することで、前記軸部材を回動する駆動手段と、
を備えたことを特徴とする、
ものである。 The vehicle seat of the present invention is
A vehicle seat having a seat cushion on which an occupant sits,
a front support member positioned on the lower front side of the seat cushion and supporting the seat cushion;
a rear support member positioned on the rear lower side of the seat cushion and supporting the seat cushion;
a pair of supporting elastic members provided between the front supporting member and the rear supporting member;
a connecting member that connects the pair of supporting elastic members;
a shaft member that is connected to the connecting member and rotates the connecting member;
a drive unit that rotates the shaft member by driving based on information about running of the vehicle;
characterized by comprising
It is a thing.

この車両用シートは、乗員が着座するシートクッションの前方下側から支持する前方支持部材と、後方下側から支持する後方支持部材とを備え、前方側支持部材と後方側支持部材との間には、一対の支持弾性部材を備えることで、着座した乗員を支持する。このとき、支持弾性部材は、連結部材によって連結されており、この連結部材は、車両の走行に関する情報に基づいて駆動する駆動手段が駆動することによって回動する軸部材と連接しているため、駆動手段の駆動により軸部材が右方向又は左方向回動するに伴い、連結部材が右方向又は左方向に揺動する。このように、連結部材を積極的に揺動させることで、シートクッションを揺動し、車両の走行に伴う揺動を低減し、乗員の快適さを向上させることができる。なお、以下の説明に置いて、前後左右とは、車両の進行方向側を「前」としてそれぞれの相対的な方向を示すものであり、絶対的な方向を意味するものではない。また、上下方向についても同様のものとする。 This vehicle seat includes a front support member that supports a seat cushion on which an occupant sits from the lower front side, and a rear support member that supports the seat cushion from the rear lower side. supports a seated occupant by providing a pair of supporting elastic members. At this time, the supporting elastic member is connected by a connecting member, and this connecting member is connected to the shaft member that is rotated by being driven by the driving means that is driven based on the information regarding the traveling of the vehicle. As the shaft member is rotated rightward or leftward by the driving means, the connecting member swings rightward or leftward. In this way, by positively swinging the connecting member, the seat cushion can be swung to reduce the swinging motion that accompanies the running of the vehicle, thereby improving the comfort of the occupant. In the following description, front, rear, left, and right refer to relative directions with the direction of travel of the vehicle as "front", and do not mean absolute directions. The same applies to the vertical direction.

本発明の車両用シートにおいて、前記連結部材は、前方側と後方側にそれぞれ１つずつ設けられていることを特徴としてもよい。こうすることにより、乗員がシートクッションに着座した際、乗員の尾底骨が前方側に設けられた連結部材と後方側の連結部材との間に位置することになり、連結部材が乗員の尾底骨の下方側に位置しない。こうすることにより、乗員が着座した際、乗員の骨が硬い連結部材と接触することによる不快感を低減し、乗員の快適さを向上させることができる。 The vehicle seat of the present invention may be characterized in that one connecting member is provided on each of the front side and the rear side. By doing so, when the occupant sits on the seat cushion, the coccyx of the occupant is positioned between the connecting member provided on the front side and the connecting member on the rear side, and the connecting member is positioned on the tail of the occupant. Not located on the inferior side of the floor bone. By doing so, when the occupant is seated, discomfort due to contact between the occupant's bones and the hard connecting member can be reduced, and the comfort of the occupant can be improved.

本発明の車両用シートに置いて、前記軸部材は、前方側の端部で前記駆動手段と連接され、前記後方支持部材と連接しないことを特徴としてもよい。こうすることにより、駆動手段によってシートクッションを左右方向に揺動させることに加え、乗員の自重や車両の走行状態により、シートクッションの後方側が弾性支持部材の弾性の範囲内で上下方向に移動することができ、乗員の快適さを向上することができる。 In the vehicle seat of the present invention, the shaft member may be connected to the driving means at a front end thereof and may not be connected to the rear support member. Thus, in addition to swinging the seat cushion in the left-right direction by the drive means, the rear side of the seat cushion moves up and down within the elastic range of the elastic support member according to the dead weight of the occupant and the running state of the vehicle. and improve occupant comfort.

本発明の車両用シートにおいて、前記駆動手段は、車両が左方向に旋回する際には前記連結部材の左側が上方向に移動する向きに前記軸部材を回動させ、車両が右方向に旋回する際には、前記連結部材の右側が上方向に移動する向きに前記軸部材を回動させることを特徴としてもよい。車両が左方向に旋回する際には、乗員が左方向に傾く方向に力が発生するが、連結部材の左側が上方に移動する方向に軸部材を回動することにより、乗員の左方向への傾きを低減し、乗員の快適さを向上させることができる。一方、車両が右方向に旋回する際には、乗員が右方向に傾く方向に力が発生するが、連結部材の右側が上方に移動する方向に軸部材を回動することにより、乗員の右方向への傾きを低減し、乗員の快適さを向上することができる。 In the vehicle seat of the present invention, when the vehicle turns leftward, the driving means rotates the shaft member such that the left side of the connecting member moves upward, and the vehicle turns rightward. When doing so, the shaft member may be rotated in a direction in which the right side of the connecting member moves upward. When the vehicle turns leftward, a force is generated in the direction in which the occupant leans leftward. can be reduced and the comfort of the occupant can be improved. On the other hand, when the vehicle turns to the right, a force is generated in the direction in which the occupant leans to the right. The directional tilt can be reduced and the comfort of the occupant can be improved.

本発明の車両用シートにおいて、前記車両の走行に関する情報は、前記車両に備えられた車輪の舵角に関する情報であることを特徴としてもよい。車輪の舵角に関する情報を用いることで、車両が旋回することで加速度が発生する前に発生する加速度を予測することができるため、車輪の舵角情報を用いることにより、加速度により乗員が揺動する前に揺動を打ち消す方向に軸部材を回動させることができ、乗員の揺動を低減し、乗員の快適さを向上することができる。 In the vehicle seat of the present invention, the information relating to travel of the vehicle may be information relating to steering angles of wheels provided in the vehicle. By using information about the steering angle of the wheels, it is possible to predict the acceleration that occurs before the acceleration occurs when the vehicle turns. It is possible to rotate the shaft member in a direction to cancel out the swinging motion before moving, thereby reducing the swinging motion of the occupant and improving the comfort of the occupant.

図１は、車両用シート２０の構成の概略を示す斜視図である。FIG. 1 is a perspective view showing a schematic configuration of a vehicle seat 20. FIG. 図２は、車両用シート２０の内部構造の概略を示す斜視図である。FIG. 2 is a perspective view schematically showing the internal structure of the vehicle seat 20. As shown in FIG. 図３は、連結部材３０及び支持弾性部材２８の構成の概略を示す斜視図であり、（Ａ）は上面視を、（Ｂ）は下面視を、それぞれ示す。3A and 3B are perspective views showing an outline of the configuration of the connecting member 30 and the supporting elastic member 28, where (A) shows a top view and (B) shows a bottom view. 図４は、連結部材３０が左右方向に揺動した状態を説明するための斜視図である。FIG. 4 is a perspective view for explaining a state in which the connecting member 30 has swung in the left-right direction. 図５は、連結部材３０の後方側が下方に傾斜した状態を説明するための斜視図である。FIG. 5 is a perspective view for explaining a state in which the rear side of the connecting member 30 is inclined downward.

次に、本発明の実施の形態の一例として、車両用シート２０について詳しく説明する。以下に説明する実施の形態及び図面は、本発明の実施形態の一部を例示するものであり、これらの構成に限定する目的に使用されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更することができる。なお、各図において対応する構成要素には同一又は類似の符号を付す。また、車両用シート２０の動きの一例を示すことで、本発明の車両用シートの使用態様の一例も明らかにする。 Next, the vehicle seat 20 will be described in detail as an example of an embodiment of the present invention. The embodiments and drawings described below illustrate a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and within the scope of the gist of the present invention It can be changed as appropriate. The same or similar reference numerals are given to corresponding components in each figure. Also, by showing an example of the movement of the vehicle seat 20, an example of the mode of use of the vehicle seat of the present invention will also be clarified.

本発明の実施の形態の一例である車両用シート２０は、図１及び図２に示すように、乗員が着座するシートクッション２２と、シートクッションの前方側を下方から支持する前方支持部材２４と、シートクッションの後方側を下方から支持する後方支持部材２６と、前方支持部材２４と後方支持部材２６との間に設けられた一対の支持弾性部材２８ａ及び２８ｂ（図３参照，以下、「支持弾性部材２８」とも言う。）と、支持弾性部材を連結する連結部材３０ａ及び３０ｂ（以下、「連結部材３０」とも言う。）と、連結部材３０と連接し、回動に伴って連結部材３０を揺動する軸部材３２（図３参照）と、軸部材３２を回動可能に連接する駆動手段３４（図３参照）と、を備えている。この車両用シート２０は、車両の走行に関する情報に基づいて駆動手段３４を駆動すると、駆動手段３４の駆動に伴って軸部材３２が回動し、連結部材３０を揺動する。そして、連結部材３０の揺動に伴って支持弾性部材２８が揺動することでシートクッション２２を揺動させることができるため、車両の走行に関する情報に基づいてシートクッション２２を揺動させることで、車両の走行に伴う乗員の揺動を低減し、快適さを向上することができる。このとき、連結部材３０の一端側が支持弾性部材２８ａに連結され、他端側が支持弾性部材２８ｂに連結されることで、連結部材３０がスタビライザーとしての役割を果たすため、カーブを走行する際、座面の安定性を高め、乗員の快適さを向上することができる。 As shown in FIGS. 1 and 2, a vehicle seat 20, which is an example of an embodiment of the present invention, includes a seat cushion 22 on which an occupant sits, and a front support member 24 that supports the front side of the seat cushion from below. , a rear support member 26 that supports the rear side of the seat cushion from below, and a pair of support elastic members 28a and 28b (see FIG. 3, hereinafter referred to as "support member") provided between the front support member 24 and the rear support member 26. ), connecting members 30a and 30b (hereinafter also referred to as “connecting member 30”) connecting the supporting elastic members, connecting to the connecting member 30 and connecting to the connecting member 30 as it rotates. and a drive means 34 (see FIG. 3) that rotatably connects the shaft member 32 (see FIG. 3). In the vehicle seat 20, when the driving means 34 is driven based on the information about the running of the vehicle, the shaft member 32 rotates with the driving of the driving means 34, and the connecting member 30 swings. Since the seat cushion 22 can be swung by the swinging of the support elastic member 28 accompanying the swinging of the connecting member 30, the seat cushion 22 can be swung based on the information regarding the running of the vehicle. , it is possible to reduce the swaying of the occupant due to the running of the vehicle and improve the comfort. At this time, one end side of the connecting member 30 is connected to the supporting elastic member 28a and the other end side is connected to the supporting elastic member 28b, so that the connecting member 30 functions as a stabilizer. The stability of the surface can be increased and the comfort of the occupant can be improved.

シートクッション２２は、図示しない一対のスライドレール上に車両の前後方向に移動可能に取り付けられており、上面後方側には、シートバック２１が取り付けられた公知のシートクッションである。このシートクッション２２は、図示しない一対のスライドレール上の設けられたシートフレーム２３によって支持される The seat cushion 22 is a known seat cushion mounted on a pair of slide rails (not shown) so as to be movable in the longitudinal direction of the vehicle, and having a seat back 21 mounted on the rear side of the upper surface. The seat cushion 22 is supported by a seat frame 23 provided on a pair of slide rails (not shown).

前方支持部材２４は、図２に示すように、シートフレーム２３の前方であって左右側にそれぞれ両端が取り付けられた金属製の部材であり、シートクッション２２の前方側を下方向から支持する部材である。 As shown in FIG. 2, the front support member 24 is a metal member having both ends attached to the left and right sides in front of the seat frame 23, and supports the front side of the seat cushion 22 from below. is.

後方支持部材２６は、シートフレーム２３の後方であって左右側にそれぞれ両端が取り付けられた金属製の部材であり、シートクッション２２の後方側を下方向から支持する部材である。 The rear support member 26 is a metal member having both ends attached to the left and right sides behind the seat frame 23, and supports the rear side of the seat cushion 22 from below.

支持弾性部材２８は、図２及び図３に示すように、一方端側が前方支持部材２４に、他方端側が後方支持部材２６に、それぞれ固定され、左方向及び右方向に交互に連続して湾曲する略Ｓ字形状の弾性部材であり、シートクッション２２を下方から支持する。この支持弾性部材２８は、シートフレーム２３の中央部を挟み、右側方向に支持弾性部材２８ａが、左側方向に支持弾性部材２８ｂが、それぞれ設けられている。こうすることにより、シートクッション２２を左右両側から支持することができる。なお、ここで弾性体しては、例えば、公知のＳバネ（Ｓ字バネ）を用いることができる。 As shown in FIGS. 2 and 3, the supporting elastic member 28 is fixed at one end to the front supporting member 24 and at the other end to the rear supporting member 26, and is continuously curved in the leftward and rightward directions. It is a substantially S-shaped elastic member that supports the seat cushion 22 from below. The support elastic member 28 sandwiches the central portion of the seat frame 23, and the support elastic member 28a is provided in the right direction, and the support elastic member 28b is provided in the left direction. By doing so, the seat cushion 22 can be supported from both the left and right sides. For example, a known S spring (S-shaped spring) can be used as the elastic body.

連結部材３０ａは、連結部材３０ｂよりも前方側に設けられ、前方側が上方向に傾斜する形状に形成された金属製の板状部材である。こうすることにより、乗員が着座した際、臀部を低い位置で、膝に近い位置を高い位置で支えることができるため、乗員が着座した際のシートクッションとの密着性を高め、快適性を高めることができる。また、この連結部材３０ａは、一方端側が支持弾性部材２８ａの上面に、他方端側が支持弾性部材２８ｂの上面に、それぞれ固定されており、連続して湾曲する支持弾性部材２８の互いの間隔が短い位置（支持弾性部材２８の互いの位置が近い位置）に固定されている。こうすることにより、連結部材３０ａのスタビライザーとしての役割を高めることができる。また、連結部材３０ａの裏面側中央部には、軸部材３２が貫通する貫通孔３１ａが設けられており、軸部材３２が貫通孔３１ａに固定されている。こうすることにより、駆動手段３４の駆動に伴って軸部材３２が右方向又は左方向に回動した際には、軸部材３２の回動に伴って、連結部材３０ａも回動する。例えば、軸部材３２が反時計回りに回動した際には、図４に示すように、連結部材３０ａも反時計回り方向（左側が上方に移動する方向）に回動することになり、支持弾性部材２８ａが上方向に、支持弾性部材２８ｂが下方向にそれぞれ押圧することができる。 The connecting member 30a is a plate-like member made of metal that is provided on the front side of the connecting member 30b and is formed in a shape in which the front side is inclined upward. By doing this, when the occupant is seated, the buttocks can be supported at a low position and the position close to the knee can be supported at a high position. be able to. One end of the connecting member 30a is fixed to the upper surface of the supporting elastic member 28a, and the other end thereof is fixed to the upper surface of the supporting elastic member 28b. It is fixed at a short position (position where the supporting elastic members 28 are close to each other). By doing so, the role of the connecting member 30a as a stabilizer can be enhanced. A through hole 31a through which the shaft member 32 passes is provided in the central portion of the back side of the connecting member 30a, and the shaft member 32 is fixed to the through hole 31a. Thus, when the shaft member 32 rotates rightward or leftward due to the driving of the driving means 34, the connecting member 30a also rotates along with the rotation of the shaft member 32. As shown in FIG. For example, when the shaft member 32 rotates counterclockwise, as shown in FIG. 4, the connecting member 30a also rotates counterclockwise (the direction in which the left side moves upward). The elastic member 28a can press upward, and the supporting elastic member 28b can press downward.

連結部材３０ｂは、連結部材３０ａよりも後方側に設けられた金属製の板状部材である。この連結部材３０ｂは、一方端側が支持弾性部材２８ａの上面に、他方端側が支持弾性部材２８ｂの上面に、それぞれ固定されており、連続して湾曲する支持弾性部材２８の互いの間隔が短い位置（支持弾性部材２８の互いの位置が近い位置）に固定されている。こうすることにより、連結部材３０ａのスタビライザーとしての役割を高めることができる。また、連結部材３０ａの裏面側中央部には、軸部材３２が挿入可能な挿入穴３１ｂが設けられており、軸部材３２が挿入穴３１ｂに固定されている。こうすることにより、駆動手段３４の駆動に伴って軸部材３２が右方向又は左方向に回動した際には、軸部材３２の回動に伴って、連結部材３０ａｂ回動する。例えば、軸部材３２が反時計回りに回動した際には、図４に示すように、連結部材３０ｂも反時計回り方向（左側が上方に移動する方向）に回動することになり、支持弾性部材２８ａが上方向に、支持弾性部材２８ｂが下方向にそれぞれ押圧することができる。 The connecting member 30b is a plate-like metal member provided on the rear side of the connecting member 30a. One end of the connecting member 30b is fixed to the upper surface of the supporting elastic member 28a, and the other end thereof is fixed to the upper surface of the supporting elastic member 28b. (positions where the supporting elastic members 28 are close to each other). By doing so, the role of the connecting member 30a as a stabilizer can be enhanced. An insertion hole 31b into which the shaft member 32 can be inserted is provided in the central portion of the back side of the connecting member 30a, and the shaft member 32 is fixed to the insertion hole 31b. Thus, when the shaft member 32 rotates rightward or leftward as the driving means 34 is driven, the connecting member 30ab rotates as the shaft member 32 rotates. For example, when the shaft member 32 rotates counterclockwise, as shown in FIG. 4, the connecting member 30b also rotates counterclockwise (the direction in which the left side moves upward). The elastic member 28a can press upward, and the supporting elastic member 28b can press downward.

このように、連結部材３０は、支持弾性部材２８の中央より前方側に連結部材３０ａが、後方側に連結部材３０ｂがそれぞれ固定されることにより、シートクッション２２に乗員が着座した際、乗員の臀部の前方側に連結部材３０ａが、後方側に連結部材３０ｂがそれぞれ位置することになり、乗員の骨が連結部材３０と当接する可能性を未然に低減することができる。乗員の骨が硬質の連結部材３０と当接すると、乗員の快適性を損ねる原因となる場合があるため、連結部材３０を支持弾性部材２８の前方側と後方側にそれぞれ位置することにより、乗員の快適さを向上させることができる。 In this manner, the connecting member 30 is fixed with the connecting member 30a on the front side and the connecting member 30b on the rear side from the center of the support elastic member 28, respectively. The connecting member 30a is positioned on the front side of the buttocks, and the connecting member 30b is positioned on the rear side of the buttocks. If the occupant's bones come into contact with the hard connecting member 30, the comfort of the occupant may be impaired. can improve the comfort of

軸部材３２は、金属製の棒状部材であり、前方側で駆動手段３４と連接された状態で、支持弾性部材２８ａと支持弾性部材２８ｂとの間の位置に設けられており、連結部材３０とそれぞれ連接されている。こうすることにより、車両の走行に関する情報に基づいて駆動手段３４が駆動すると、駆動手段３４の駆動に伴って軸部材３２が回動し、軸部材３２の回動に伴って連結部材３０が揺動し、連結部材３０の揺動に伴って、支持弾性部材２８が上下に移動する。例えば、車両が左方向にカーブした走行路を走行する際には、図４に示すように、軸部材３２を反時計回り方向に回動することにより、連結部材３０の左側が上方向に移動し、乗員の左方向への傾きを軽減し、乗員の快適さを向上することができる。 The shaft member 32 is a rod-shaped member made of metal, and is provided at a position between the elastic support members 28a and 28b while being connected to the driving means 34 on the front side. are connected to each other. By doing so, when the driving means 34 is driven based on the information regarding the running of the vehicle, the shaft member 32 is rotated with the driving of the driving means 34, and the connecting member 30 is rocked with the rotation of the shaft member 32. As the connecting member 30 swings, the supporting elastic member 28 moves up and down. For example, when the vehicle travels on a road that curves to the left, as shown in FIG. 4, by rotating the shaft member 32 counterclockwise, the left side of the connecting member 30 moves upward. This reduces the inclination of the occupant to the left and improves the comfort of the occupant.

また、軸部材３２の後方側は、連結部材３０ｂの挿入穴３１ｂに挿入されており、後方支持部材２６に固定されていない。このため、シートクッション２２に乗員が着座した際、乗員の自重により、支持弾性部材２８の弾性力の範囲内で、下方向に傾くことになる（図５参照）。このように、軸部材３２の後方側を後方支持部材２６と連結しないことで、シートクッション２２の後方側が上下方向に移動することが可能となり、乗員の快適さを向上することができる。 Further, the rear side of the shaft member 32 is inserted into the insertion hole 31b of the connecting member 30b and is not fixed to the rear support member 26. As shown in FIG. Therefore, when an occupant is seated on the seat cushion 22, the occupant's own weight causes the seat cushion 22 to tilt downward within the range of elastic force of the support elastic member 28 (see FIG. 5). By not connecting the rear side of the shaft member 32 to the rear support member 26 in this manner, the rear side of the seat cushion 22 can move in the vertical direction, and the comfort of the occupant can be improved.

駆動手段３４は、例えば、公知の電動モータであり、軸部材３２の表面と嵌合した状態又は軸部材３２に固定されたギアに嵌合した状態で軸部材３２と連接する。こうすることにより、駆動手段３４を駆動させることで軸部材３２を回動させることができ、駆動手段３４の駆動方向を制御することで、軸部材３２の回動方向を制御することができる。このとき、駆動手段３４は、車両の走行に関する情報に基づいて駆動の有無及び駆動方向が制御される。具体的には、車両が左方向にカーブして走行する際には、軸部材３２が連結部材３０の左側を上方向に回動する方向（前方から見て反時計回りの方向）に回動する方向に駆動手段３４の駆動が制御される。こうすることにより、車両が左方向にカーブして走行する際には、駆動手段３４によって軸部材３２が連結部材３０の左側を上方向に回動する方向に回動し、支持弾性部材２８ａが上方向に移動することで、乗員の姿勢が左方向に傾くことを未然に防止し、乗員の快適さを向上させることができる。なお、ここで、車両の走行に関する情報とは、例えば、車両に備えられた車輪の舵角に関する情報を用いることができる。車輪の舵角に関する情報を車両の走行に関する情報として用いることで、近い未来の車両の旋回方向に関する上方が得られるため、旋回に伴って生じる力によって乗員が左右いずれの方向に傾く前に、乗員の傾きを打ち消す方向に連結部材３０を回動させることができるため、乗員の傾きを未然に低減し、快適さを向上させることができる。また、左方向に湾曲する際の動きを説明したが、右方向に湾曲する際の動きも同様であるため、ここでは説明を省略する。 The driving means 34 is, for example, a known electric motor, and is connected to the shaft member 32 while being fitted to the surface of the shaft member 32 or fitted to a gear fixed to the shaft member 32 . By doing so, the shaft member 32 can be rotated by driving the driving means 34 , and the rotating direction of the shaft member 32 can be controlled by controlling the driving direction of the driving means 34 . At this time, the driving means 34 is controlled whether or not to drive and the driving direction based on the information regarding the running of the vehicle. Specifically, when the vehicle travels while curving to the left, the shaft member 32 rotates the left side of the connecting member 30 upward (counterclockwise when viewed from the front). The driving of the driving means 34 is controlled in the direction to move. In this way, when the vehicle turns to the left and travels, the shaft member 32 rotates the left side of the connecting member 30 upward by the drive means 34, and the elastic support member 28a rotates upward. By moving upward, it is possible to prevent the posture of the occupant from inclining to the left, thereby improving the comfort of the occupant. It should be noted that, here, as the information regarding the running of the vehicle, for example, information regarding the rudder angle of the wheels provided in the vehicle can be used. By using information about the steering angle of the wheels as information about the running of the vehicle, it is possible to obtain an upper view of the turning direction of the vehicle in the near future. Since the connecting member 30 can be rotated in the direction of canceling the inclination of the occupant, the inclination of the occupant can be reduced in advance and the comfort can be improved. In addition, although the movement when bending to the left has been described, the movement when bending to the right is similar, so the explanation is omitted here.

以上詳述した実施の形態の車両用シート２０によれば、駆動手段３４の駆動によって軸部材３２を回動することにより、連結部材３０が軸部材３２の回動に伴って回動し、支持弾性部材２８を上方又は下方に押圧する。このため、車両がカーブする方向と反対方向に軸部材３２を回動することにより、乗員のカーブする方向への傾きを低減することができ、車両の走行に伴う揺動を低減し、乗員の快適さを向上することができる。 According to the vehicle seat 20 of the embodiment described in detail above, when the shaft member 32 is rotated by driving the driving means 34, the connecting member 30 is rotated in accordance with the rotation of the shaft member 32 and supported. The elastic member 28 is pressed upward or downward. Therefore, by rotating the shaft member 32 in the direction opposite to the direction in which the vehicle curves, it is possible to reduce the inclination of the occupant in the direction in which the vehicle curves. Comfort can be improved.

また、連結部材３０は、シートクッション２２の中央より前方側と後方側にそれぞれ１つずつ設けられているため、乗員がシートクッション２２に着座した際、乗員の尾底骨が連結部材３０ａと連結部材３０ｂとの間に位置することになり、連結部材３０が乗員の尾底骨の下方側に位置することがなく、乗員の骨が連結部材３０と当接する可能性を未然に低減し、乗員が不快を感じる可能性を未然に低減することができる。 In addition, since one connecting member 30 is provided on each of the front side and the rear side from the center of the seat cushion 22, when the occupant is seated on the seat cushion 22, the coccyx of the occupant is connected to the connecting member 30a. Since the connecting member 30 is positioned between the connecting member 30b and the connecting member 30b, the connecting member 30 is not positioned below the coccyx bone of the occupant, thereby reducing the possibility of the connecting member 30 coming into contact with the bone of the occupant. can reduce the possibility of feeling uncomfortable.

更に、軸部材３２は、前方側の端部で駆動手段３４と連接され、後方支持部材２６と連接しないため、駆動手段３４によってシートクッション２２を左右方向に揺動させることに加え、乗員の自重や車両の走行状態により、シートクッション２２の後方側が支持弾性部材２８の弾性の範囲内で上下方向に移動することができ、乗員の快適さを向上することができる。 Furthermore, since the shaft member 32 is connected to the drive means 34 at the front end thereof and is not connected to the rear support member 26, the seat cushion 22 is swung in the left-right direction by the drive means 34, and the weight of the occupant is reduced. The rear side of the seat cushion 22 can move up and down within the elastic range of the support elastic member 28 depending on the running state of the vehicle and the comfort of the occupant can be improved.

更にまた、駆動手段３４は、車両が左方向に旋回する際には連結部材３０の左側が上方向に移動する向きに軸部材３２を回動させ、車両が右方向に旋回する際には、連結部材３０の右側が上方向に移動する向きに軸部材３２を回動させる。車両が左方向にカーブして走行する際には、駆動手段３４によって軸部材３２が連結部材３０の左側を上方向に回動する方向に回動し、支持弾性部材２８ａが上方向に移動することで、乗員の姿勢が左方向に傾くことを未然に防止し、乗員の快適さを向上させることができる。なお、右方向にカーブして走行する場合も、同様である。 Furthermore, when the vehicle turns leftward, the driving means 34 rotates the shaft member 32 so that the left side of the connecting member 30 moves upward. The shaft member 32 is rotated so that the right side of the connecting member 30 moves upward. When the vehicle turns to the left and travels, the shaft member 32 is rotated upward on the left side of the connecting member 30 by the drive means 34, and the supporting elastic member 28a is moved upward. As a result, the occupant's posture can be prevented from tilting to the left, and the comfort of the occupant can be improved. It should be noted that the same applies when the vehicle is traveling while curving to the right.

そして、車両の走行に関する情報として、車両に備えられた車輪の舵角に関する情報を用いることで、車両が旋回することで加速度が発生する前に発生する加速度を予測することができるため、加速度により乗員が揺動する前に揺動を打ち消す方向に軸部材３２を回動させることができ、乗員の揺動を低減し、乗員の快適さを向上することができる。 By using the information about the steering angle of the wheels provided in the vehicle as the information about the running of the vehicle, it is possible to predict the acceleration that occurs before the acceleration due to the turning of the vehicle. The shaft member 32 can be rotated in a direction to cancel the swing before the passenger swings, so that the swing of the passenger can be reduced and the comfort of the passenger can be improved.

なお、本発明は上述した実施形態に何ら限定されることはなく、本発明の技術的範囲に属する限り種々の態様で実施し得ることはいうまでもない。 It goes without saying that the present invention is not limited to the above-described embodiments, and can be implemented in various forms as long as they fall within the technical scope of the present invention.

例えば、上述した実施の形態では、車両の走行に関する情報とは、車両に備えられた車輪の舵角に関する情報としたが、車両の走行に関する情報であればこれに限定されるものではなく、例えば、車両に備えられた撮影手段によって撮影された撮影情報や車両の位置情報に基づいて導かれる車両の走行ルートに関する情報であってもよい。いずれの場合であっても、上述した実施の形態と同様の効果が得られる。 For example, in the above-described embodiment, the information regarding the running of the vehicle is the information regarding the steering angle of the wheels provided in the vehicle. Alternatively, the information may be information relating to the travel route of the vehicle, which is guided based on image information captured by image capturing means provided in the vehicle or vehicle position information. In either case, the same effect as the embodiment described above can be obtained.

上述した実施の形態で示すように、車両用シート分野、特に、左右方向に揺動可能な車両用シートとして利用することができる。 As shown in the above-described embodiment, it can be used in the field of vehicle seats, particularly as a vehicle seat that can swing in the left-right direction.

２０…車両用シート、２１…シートバック、２２…シートクッション、２３…シートフレーム、２４…前方支持部材、２６…後方支持部材、２８…支持弾性部材、２８ａ…支持弾性部材、２８ｂ…支持弾性部材、３０…連結部材、３０ａ…連結部材、３０ｂ…連結部材、３１ａ…貫通孔、３１ｂ…挿入穴、３２…軸部材、３４…駆動手段。 DESCRIPTION OF SYMBOLS 20... Vehicle seat 21... Seat back 22... Seat cushion 23... Seat frame 24... Front support member 26... Rear support member 28... Elastic support member 28a... Elastic support member 28b... Elastic support member , 30... Connecting member, 30a... Connecting member, 30b... Connecting member, 31a... Through hole, 31b... Insertion hole, 32... Shaft member, 34... Driving means.

Claims (5)

乗員が着座するシートクッションを有する車両用シートであって、
前記シートクッションの前方下側に位置し、前記シートクッションを支持する前方支持部材と、
前記シートクッションの後方下側に位置し、前記シートクッションを支持する後方支持部材と、
前記前方支持部材と前記後方支持部材との間に設けられた一対の支持弾性部材と、
前記一対の支持弾性部材を連結する連結部材と、
前記連結部材と連接し、前記連結部材を回動する軸部材と、
車両の走行に関する情報に基づいて駆動することで、前記軸部材を回動する駆動手段と、
を備えたことを特徴とする、
車両用シート。 A vehicle seat having a seat cushion on which an occupant sits,
a front support member positioned on the lower front side of the seat cushion and supporting the seat cushion;
a rear support member positioned on the rear lower side of the seat cushion and supporting the seat cushion;
a pair of supporting elastic members provided between the front supporting member and the rear supporting member;
a connecting member that connects the pair of supporting elastic members;
a shaft member that is connected to the connecting member and rotates the connecting member;
a drive unit that rotates the shaft member by driving based on information about running of the vehicle;
characterized by comprising
vehicle seat. 前記連結部材は、前方側と後方側にそれぞれ１つずつ設けられていることを特徴とする、
請求項１に記載の車両用シート。 The connecting member is provided one each on the front side and the rear side,
The vehicle seat according to claim 1. 前記軸部材は、前方側の端部で前記駆動手段と連接され、前記後方支持部材と連接しないことを特徴とする、
請求項１又は２に記載の車両用シート。 The shaft member is connected to the driving means at the end on the front side and is not connected to the rear support member,
The vehicle seat according to claim 1 or 2. 前記駆動手段は、車両が左方向に旋回する際には前記連結部材の左側が上方向に移動する向きに前記軸部材を回動させ、車両が右方向に旋回する際には、前記連結部材の右側が上方向に移動する向きに前記軸部剤を回動させることを特徴とする、
請求項１から３のいずれか１項に記載の車両用シート。 The driving means rotates the shaft member in a direction in which the left side of the connecting member moves upward when the vehicle turns leftward, and rotates the connecting member when the vehicle turns rightward. characterized in that the shaft member is rotated in a direction in which the right side of the
The vehicle seat according to any one of claims 1 to 3. 前記車両の走行に関する情報は、前記車両に備えられた車輪の舵角に関する情報であることを特徴とする、
請求項１から４のいずれか１項に記載の車両用シート。 The information on the running of the vehicle is information on the steering angle of the wheels provided in the vehicle,
The vehicle seat according to any one of claims 1 to 4.
JP2021076953A 2021-04-29 2021-04-29 Seat for vehicle Pending JP2022170775A (en)

Priority Applications (1)

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JP2021076953A JP2022170775A (en) 2021-04-29 2021-04-29 Seat for vehicle

Applications Claiming Priority (1)

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JP2021076953A JP2022170775A (en) 2021-04-29 2021-04-29 Seat for vehicle

Publications (1)

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Family

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Family Applications (1)

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JP2021076953A Pending JP2022170775A (en) 2021-04-29 2021-04-29 Seat for vehicle

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