JP2007190162A - Armrest - Google Patents

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JP2007190162A
JP2007190162A JP2006010542A JP2006010542A JP2007190162A JP 2007190162 A JP2007190162 A JP 2007190162A JP 2006010542 A JP2006010542 A JP 2006010542A JP 2006010542 A JP2006010542 A JP 2006010542A JP 2007190162 A JP2007190162 A JP 2007190162A
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armrest
state
armrest body
cam
seat
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JP4465322B2 (en
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Tsutomu Katsumata
勉 勝又
Toshiyuki Takada
敏行 高田
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Simotec Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an armrest capable of sufficiently securing the using area of a load rack member, reducing an occupancy space in a seat space when it is not used, effectively utilizing the seat space, and switching a posture to a using state and a housed state by light manual operation force. <P>SOLUTION: On the end side of an armrest body 2, the load rack member 3 having a wide surface 3a and a narrow surface 3b is provided so as to be turned between the state of turning the wide surface 3a upwards and the state of turning the wide surface 3a to the side around a shaft 6. Then, the armrest body 2 is installed so as to be turned around a hinge 5 between the using state of being in a roughly horizontal posture at the side part of a seat S and the housed state of being in a roughly vertical posture at the side rear part of the seat S. The hinge 5 generates torque which reacts against the torque in a turning direction to the using state of the armrest 1 by a cam member 32, a cam follower 36 and a spring member 37, and the armrest 1 is stopped and held at a prescribed turning angle position by the balance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車両や椅子などの座席に取付けられるアームレストに関する。   The present invention relates to an armrest attached to a seat such as a vehicle or a chair.

この種のアームレストとして、例えば、自動車の座席の側部にアームレスト本体を座席の側部後方にほぼ垂直姿勢となる収納状態と、座席の側部にほぼ水平姿勢となる使用状態との間で回動可能に設置し、アームレスト本体の先端部に、カップホルダー等に使用可能な収納ボックスを組み込んだものがある（例えば、特許文献１参照。）。   As an armrest of this type, for example, the armrest body can be rotated between a stowed state in which the armrest body is placed in a substantially vertical position behind the side of the seat and a use state in which a substantially horizontal posture is provided on the side of the seat. There is one that is installed so as to be movable, and a storage box that can be used for a cup holder or the like is incorporated at the tip of the armrest body (see, for example, Patent Document 1).

特開平７−２１３３７８号公報JP-A-7-213378

しかるに、上記のような構成のアームレストでは、アームレスト本体の使用状態で上向きになる肘掛け面、収納ボックスの使用状態で上向きになる物載置面は、いずれも、一定の面積に形成されている。そのため、アームレスト本体の肘掛け面を、たとえば、隣り合って座る者と共同して使用するために広幅に形成するとなると、座席スペースが狭くなる。また、収納ボックスの物載置面を、たとえば、径大のカップを載置可能にするために広幅に形成すると、これ又、座席スペースが狭くなるという問題があった。   However, in the armrest having the above-described configuration, both the armrest surface that faces upward when the armrest body is used and the object placement surface that faces upward when the storage box is used are formed in a certain area. Therefore, if the armrest surface of the armrest body is formed to be wide so as to be used jointly with a person sitting next to it, for example, the seat space is reduced. Further, if the object placement surface of the storage box is formed wide so that, for example, a large-diameter cup can be placed, there is also a problem that the seat space is reduced.

本発明の目的は、このような問題を解決するためになされたもので、アームレスト本体や物置台部材の使用面積を十分に確保でき、またそれらの不使用時には座席スペースでの占有スペースの減少を図れて座席スペースの有効利用を図れるアームレストを提供することにある。
また本発明の目的は、軽い手動操作力で使用状態と収納状態に姿勢切換えできて操作性、使い勝手の良好なアームレストを提供することにある。 The object of the present invention is to solve such a problem, and it is possible to secure a sufficient use area of the armrest body and the storage table member, and to reduce the occupied space in the seat space when they are not used. It is intended to provide an armrest that can be used effectively to make effective use of the seating space.
It is another object of the present invention to provide an armrest that can be switched between a use state and a storage state with a light manual operation force, and has excellent operability and usability.

本発明の請求項１に係る発明のアームレストは、座席の側部に配置されたアームレスト本体の先端側に、広幅面と狭幅面とを有する形に形成された物置台部材が前記アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられており、 前記アームレスト本体が前記座席の側部後方にほぼ垂直姿勢となる収納状態と前記座席の側部にほぼ水平姿勢となる使用状態との間でヒンジまわりに上下方向に回動可能に設置されており、
前記ヒンジは、前記アームレスト本体の回動基端側に備えられカム面を有するカム部材と、このカム部材にヒンジ軸回りに回動自在に枢支連結され、前記座席側に取付けられたばね収納ケースと、このばね収納ケース内に上下方向に摺動自在に収納され、前記カム面に摺接する突子を有するカムフォロアと、前記ばね収納ケース内に収納され、前記カムフォロアを常に前記カム面に向けて押付け付勢するばね部材と、を備え、前記カム部材、カムフォロア及びばね部材によって前記アームレスト本体の使用状態への回動方向のトルクに反発するトルクを生じさせてそのバランスにて前記アームレスト本体が所定の回動角度位置に停止保持するようにしてなることに特徴を有するものである。 In the armrest according to the first aspect of the present invention, a storage base member formed in a shape having a wide surface and a narrow surface on the distal end side of the armrest body disposed on the side portion of the seat is a longitudinal direction of the armrest body. The armrest body is provided so as to be rotatable between a state in which the wide surface is directed upward around the shaft along the direction and a state in which the wide surface is directed to the side, and the armrest body is substantially perpendicular to the rear side of the seat. It is installed so as to be able to turn up and down around the hinge between the stowed storage state and the use state of being in a substantially horizontal posture on the side of the seat,
The hinge is provided on the rotation base end side of the armrest body, and a cam member having a cam surface. The spring storage case is pivotally connected to the cam member so as to be rotatable about a hinge axis and attached to the seat side. And a cam follower that is slidably moved in the vertical direction in the spring storage case and has a protrusion that is in sliding contact with the cam surface, and is stored in the spring storage case, and the cam follower is always directed toward the cam surface. A spring member that presses and biases, and the cam member, the cam follower, and the spring member generate a torque that repels the torque in the rotational direction to the use state of the armrest body, and the armrest body is predetermined by the balance thereof. It is characterized in that it is stopped and held at the rotational angle position.

請求項２に係る発明のアームレストは、座席の側部に配置されて広幅面と狭幅面とを有する形に形成されたアームレスト本体と、該アームレスト本体の先端側に取付けられて広幅面と狭幅面とを有する形に形成された物置台部材とを備え、前記アームレスト本体および物置台部材がそれぞれ前記アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられており、
前記アームレスト本体が前記座席の側部後方にほぼ垂直姿勢となる収納状態と前記座席の側部にほぼ水平姿勢となる使用状態との間でヒンジまわりに上下方向に回動可能に設置されており、
前記ヒンジは、前記アームレスト本体の回動基端側に備えられカム面を有するカム部材と、このカム部材にヒンジ軸回りに回動自在に枢支連結され、前記座席側に取付けられたばね収納ケースと、このばね収納ケース内に上下方向に摺動自在に収納され、前記カム面に摺接する突子を有するカムフォロアと、前記ばね収納ケース内に収納され、前記カムフォロアを常に前記カム面に向けて押付け付勢するばね部材と、を備え、前記カム部材、カムフォロア及びばね部材によって前記アームレスト本体の使用状態への回動方向のトルクに反発するトルクを生じさせてそのバランスにて前記アームレスト本体が所定の回動角度位置に停止保持するようにしてなることに特徴を有するものである。 An armrest according to a second aspect of the present invention is an armrest body that is disposed on a side portion of a seat and has a wide surface and a narrow surface, and a wide surface and a narrow surface that are attached to the distal end side of the armrest body. The armrest main body and the storage base member each have a state in which the wide surface faces upward around the shaft along the longitudinal direction of the armrest main body, and the wide surface faces sideways. It is provided so that it can rotate between
The armrest body is installed so as to be pivotable vertically around the hinge between a stowed state in which the armrest body is in a substantially vertical posture behind the side of the seat and a use state in which the armrest body is in a substantially horizontal posture on the side of the seat. ,
The hinge is provided on the rotation base end side of the armrest body, and a cam member having a cam surface. The spring storage case is pivotally connected to the cam member so as to be rotatable about a hinge axis and attached to the seat side. And a cam follower that is slidably moved in the vertical direction in the spring storage case and has a protrusion that is in sliding contact with the cam surface, and is stored in the spring storage case, and the cam follower is always directed toward the cam surface. A spring member that presses and biases, and the cam member, the cam follower, and the spring member generate a torque that repels the torque in the rotational direction to the use state of the armrest body, and the armrest body is predetermined by the balance thereof. It is characterized in that it is stopped and held at the rotational angle position.

請求項３に係る発明のアームレストは、座席の側部に配置されて広幅面と狭幅面とを有する形に形成されたアームレスト本体が該アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられており、前記アームレスト本体の先端側に物置台部材が一体に設けられており、
前記アームレスト本体が前記座席の側部後方にほぼ垂直姿勢となる収納状態と前記座席の側部にほぼ水平姿勢となる使用状態との間でヒンジまわりに上下方向に回動可能に設置されており、
前記ヒンジは、前記アームレスト本体の回動基端側に備えられカム面を有するカム部材と、このカム部材にヒンジ軸回りに回動自在に枢支連結され、前記座席側に取付けられたばね収納ケースと、このばね収納ケース内に上下方向に摺動自在に収納され、前記カム面に摺接する突子を有するカムフォロアと、前記ばね収納ケース内に収納され、前記カムフォロアを常に前記カム面に向けて押付け付勢するばね部材と、を備え、前記カム部材、カムフォロア及びばね部材によって前記アームレスト本体の使用状態への回動方向のトルクに反発するトルクを生じさせてそのバランスにて前記アームレスト本体が所定の回動角度位置に停止保持するようにしてなることに特徴を有するものである。 An armrest according to a third aspect of the present invention is such that an armrest body disposed on a side portion of a seat and having a wide surface and a narrow surface has a wide surface facing upward around a shaft along the longitudinal direction of the armrest body. And a state in which the wide surface is directed to the side so as to be rotatable, and a storage table member is integrally provided on the distal end side of the armrest body,
The armrest body is installed so as to be pivotable vertically around the hinge between a stowed state in which the armrest body is in a substantially vertical posture behind the side of the seat and a use state in which the armrest body is in a substantially horizontal posture on the side of the seat. ,
The hinge is provided on the rotation base end side of the armrest body, and a cam member having a cam surface. The spring storage case is pivotally connected to the cam member so as to be rotatable about a hinge axis and attached to the seat side. And a cam follower that is slidably moved in the vertical direction in the spring storage case and has a protrusion that is in sliding contact with the cam surface, and is stored in the spring storage case, and the cam follower is always directed toward the cam surface. A spring member that presses and biases, and the cam member, the cam follower, and the spring member generate a torque that repels the torque in the rotational direction to the use state of the armrest body, and the armrest body is predetermined by the balance thereof. It is characterized in that it is stopped and held at the rotational angle position.

請求項４に係る発明のアームレストは、請求項１ないし３のいずれかに記載のアームレストにおいて、前記カム面は、前記アームレスト本体が収納状態から使用状態への回動途上において開角４０°付近から自動的に使用状態方向に回動作用を働く第１曲縁を有する形に形成することができる。   The armrest according to a fourth aspect of the present invention is the armrest according to any one of the first to third aspects, wherein the cam surface is opened from around an open angle of 40 ° while the armrest body is turning from the housed state to the used state. It can be formed in a shape having a first curved edge that automatically rotates in the direction of use.

請求項５に係る発明のアームレストは、前記カム面は、前記アームレスト本体が使用状態から収納状態への回動途上において開角５０°付近を越えると自動的に収納状態方向に回動作用を働く第２曲縁を有する形に形成することができる。   In the armrest of the invention according to claim 5, the cam surface automatically rotates in the storage state direction when the armrest body exceeds an open angle of about 50 ° in the course of rotation from the use state to the storage state. It can be formed in a shape having a second curved edge.

請求項１記載の発明によれば、広幅面と狭幅面とを有する形に形成された物置台部材がアームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられているので、物置台部材は使用時には広幅面が上向きになるように回動させることで、その広幅面をカップ、ドリンク缶立てや灰皿、あるいは小物置き等に広く使用することができ、特に径大のカップをも立てることができ、不使用時には広幅面が側方に向くように回動させることで狭い座席スペース内にもコンパクトに納めることができる。
また、アームレストの不使用時には該アームレストを座席の側部後方にほぼ垂直姿勢となるようにヒンジ回りに回動させて収納することにより座席スペースを座席にフルに使用できる。アームレストを収納状態から使用状態に切換えるときは、アームレスト本体の使用状態への回動方向のトルクに反発するトルクがカム部材、カムフォロア及びばね部材により生じてそのバランスにてアームレスト本体は所定回動角度位置で停止保持でき、つまり緩やかな速度で倒すことができる。また、カム部材、カムフォロア及びばね部材によってアームレスト本体の使用状態への回動方向のトルクに反発するトルクを発生させていることで、アームレスト本体を使用状態から手動で持ち上げて収納状態に起こすときに要する操作力を軽減でき、座席に座った姿勢のままでも容易にアームレスト本体を収納状態に収めることができて操作性、使い勝手が良い。 According to the first aspect of the present invention, the storage table member formed in a shape having the wide surface and the narrow surface has the wide surface facing upward around the shaft along the longitudinal direction of the armrest body, and the wide surface is on the side. Since it is provided so as to be able to rotate between the state facing toward the direction, the storage table member is rotated so that the wide surface faces upward at the time of use, so that the wide surface is cup, drink can stand or ashtray, Or it can be used widely for small items, especially large diameter cups can be set up, and when not in use, it can be stored compactly in a narrow seating space by turning the wide surface to the side. be able to.
When the armrest is not used, the armrest can be fully used in the seat by rotating and storing the armrest around the hinge so as to be in a substantially vertical posture behind the side of the seat. When switching the armrest from the stored state to the use state, torque that repels the torque in the direction of rotation of the armrest body to the use state is generated by the cam member, cam follower, and spring member, and the armrest body has a predetermined rotation angle by the balance. It can be stopped and held at the position, that is, it can be defeated at a moderate speed. Further, when the arm member is lifted manually from the use state to the retracted state by generating a torque repelling the torque in the rotation direction to the use state of the arm rest body by the cam member, the cam follower and the spring member. The required operating force can be reduced, and the armrest body can be easily stored in the stowed state even when sitting in the seat, making it easy to use and easy to use.

請求項２記載の発明によれば、アームレスト本体および物置台部材がそれぞれアームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられているので、アームレスト本体又は物置台部材は使用時にはそれぞれの広幅面が上向きになるように回動させることで、アームレスト本体の広幅面は隣り合って座る者と共同して肘掛けに使用することができ、物置台部材の広幅面はカップ立てや灰皿、あるいは小物置き等に使用することができる。そして、アームレスト本体又は物置台部材の不使用時にはそれぞれの広幅面が側方に向くように回動させることで狭い座席スペース内にもコンパクトに納めることができる。
また、請求項１記載の発明と同様に、アームレストの不使用時には該アームレストを座席の側部後方にほぼ垂直姿勢となるように収納することにより座席スペースを座席にフルに使用できる。アームレストを収納状態から使用状態に切換えるときは、アームレスト本体の使用状態への回動方向のトルクに反発するトルクがカム部材、カムフォロア及びばね部材により生じてそのバランスにてアームレスト本体は所定回動角度位置で停止保持でき、つまり緩やかな速度で倒すことができる。また、カム部材、カムフォロア及びばね部材によってアームレスト本体の使用状態への回動方向のトルクに反発するトルクを発生させていることで、アームレスト本体を使用状態から手動で持ち上げて収納状態に起こすときに要する操作力を軽減でき、座席に座った姿勢のままでも容易にアームレスト本体を収納状態に収めることができて操作性、使い勝手が良い。 According to the second aspect of the present invention, the armrest body and the pedestal table member rotate between a state in which the wide surface is directed upward around the shaft along the longitudinal direction of the armrest body and a state in which the wide surface is directed to the side. Since the armrest body or the pedestal base member is rotated so that each wide surface faces upward when in use, the wide surface of the armrest body can be armrested together with the person sitting next to it. The wide surface of the storage table member can be used for a cup stand, an ashtray, or a small item storage. When the armrest body or the storage table member is not used, it can be compactly accommodated in a narrow seat space by rotating the respective wide surfaces so as to face sideways.
Similarly to the first aspect of the present invention, when the armrest is not used, the seat space can be fully used in the seat by storing the armrest in a substantially vertical posture behind the side of the seat. When switching the armrest from the stored state to the use state, torque that repels the torque in the direction of rotation of the armrest body to the use state is generated by the cam member, cam follower, and spring member, and the armrest body has a predetermined rotation angle by the balance. It can be stopped and held at the position, that is, it can be defeated at a moderate speed. Further, when the arm member is lifted manually from the use state to the retracted state by generating a torque repelling the torque in the rotation direction to the use state of the arm rest body by the cam member, the cam follower and the spring member. The required operating force can be reduced, and the armrest body can be easily stored in the stowed state even when sitting in the seat, making it easy to use and easy to use.

請求項３記載の発明によれば、座席の側部に配置されて広幅面と狭幅面とを有する形に形成されたアームレスト本体が該アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられているので、アームレスト本体は使用時には広幅面が上向きになるように回動させることで、その広幅面を隣り合って座る者と共同して肘掛けに使用することができ、不使用時には広幅面が側方に向くように回動させることで狭い座席スペース内にもコンパクトに納めることができる。
また、請求項１記載の発明と同様に、アームレストの不使用時には該アームレストを座席の側部後方にほぼ垂直姿勢となるように収納することにより座席スペースを座席にフルに使用できる。アームレストを収納状態から使用状態に切換えるときは、アームレスト本体の使用状態への回動方向のトルクに反発するトルクがカム部材、カムフォロア及びばね部材により生じてそのバランスにてアームレスト本体は所定回動角度位置で停止保持でき、つまり緩やかな速度で倒すことができる。また、カム部材、カムフォロア及びばね部材によってアームレスト本体の使用状態への回動方向のトルクに反発するトルクを発生させていることで、アームレスト本体を使用状態から手動で持ち上げて収納状態に起こすときに要する操作力を軽減でき、座席に座った姿勢のままでも容易にアームレスト本体を収納状態に収めることができて操作性、使い勝手が良い。 According to invention of Claim 3, the armrest main body formed in the shape which has a wide surface and a narrow surface arrange | positioned at the side part of a seat has the wide surface upward around the shaft along the longitudinal direction of this armrest main body. Since the armrest body is pivoted so that the wide surface faces upward when in use, the wide surface is adjacent to each other. It can be used for armrests jointly with the person who sits together, and when not in use, it can be stored compactly in a narrow seating space by turning so that the wide surface faces sideways.
Similarly to the first aspect of the present invention, when the armrest is not used, the seat space can be fully used in the seat by storing the armrest in a substantially vertical posture behind the side of the seat. When switching the armrest from the stored state to the use state, torque that repels the torque in the direction of rotation of the armrest body to the use state is generated by the cam member, cam follower, and spring member, and the armrest body has a predetermined rotation angle by the balance. It can be stopped and held at the position, that is, it can be defeated at a moderate speed. Further, when the arm member is lifted manually from the use state to the retracted state by generating a torque repelling the torque in the rotation direction to the use state of the arm rest body by the cam member, the cam follower and the spring member. The required operating force can be reduced, and the armrest body can be easily stored in the stowed state even when sitting in the seat, making it easy to use and easy to use.

請求項４記載の発明によれば、カム面は、アームレスト本体が収納状態から使用状態への回動途上において開角４０°付近から自動的に使用状態に回動作用を働く第１曲縁を有する形に形成しているので、アームレスト本体を収納状態から使用状態に手動で倒すときに開角４０°付近を越える時点でアームレスト本体から手を離してもスムーズに使用状態にすることができ、座席に座ったままの姿勢でも小さい操作力で容易に使用状態に倒すことができる。   According to the fourth aspect of the invention, the cam surface has the first curved edge that automatically rotates from the vicinity of an opening angle of 40 ° to the use state while the armrest body is turning from the housed state to the use state. Since it is formed into a shape, it can be smoothly used even if the armrest body is released from the armrest body when the armrest body is manually moved from the stowed state to the used state and the open angle exceeds 40 °. Even when sitting in a seat, it can be easily brought down to use with a small operating force.

請求項５記載の発明によれば、カム面は、アームレスト本体が使用状態から収納状態への回動途上において開角５０°付近を越えると自動的に収納状態に回動作用を働く第２曲縁を有する形に形成しているので、アームレスト本体を使用状態から収納状態に手動で起こすときに開角５０°付近を越える時点でアームレスト本体から手を離してもばね部材の付勢力で自動的に収納させることができ、座席に座ったままの姿勢でも小さい操作力で容易に収納させることができる。   According to the fifth aspect of the present invention, the cam surface is a second song that automatically rotates in the retracted state when the armrest body exceeds an opening angle of about 50 ° during the rotation from the use state to the retracted state. Since it is formed in a shape with an edge, when the armrest body is manually raised from the use state to the retracted state, it is automatically applied by the biasing force of the spring member even if the armrest body is released when the opening angle exceeds about 50 °. And can be easily stored with a small operating force even in a posture while sitting on the seat.

本発明の好適な実施形態を図面に基づき説明する。図１は本発明の一実施例（請求項１記載の発明に対応）のアームレストを座席に取付けた状態で示す一部破断側面図、図２は図１におけるアームレストのヒンジ部分の拡大断面図、図３は同アームレストの収納状態におけるヒンジ部分の拡大断面図、図４は同アームレストの斜視図、図５は同アームレストの物置台部材の使用状態を示す斜視図、図６は同アームレストのアームレスト本体と物置台部材を接続するシャフト部分の断面図、図７は同アームレストのシャフト部分の分解斜視図である。   A preferred embodiment of the present invention will be described with reference to the drawings. 1 is a partially cutaway side view showing an armrest according to an embodiment of the present invention (corresponding to the invention described in claim 1) attached to a seat, FIG. 2 is an enlarged sectional view of a hinge portion of the armrest in FIG. 3 is an enlarged cross-sectional view of the hinge portion in the storage state of the armrest, FIG. 4 is a perspective view of the armrest, FIG. 5 is a perspective view showing a use state of a storage table member of the armrest, and FIG. 6 is an armrest body of the armrest And FIG. 7 is an exploded perspective view of the shaft portion of the armrest.

図１〜図４において、アームレスト１は座席Ｓの側部に配置されたアームレスト本体２と、このアームレスト本体２の先端部２ｃに取付けられた物置台部材３とを備える。アームレスト本体２は座席Ｓの側部にほぼ水平姿勢となる使用状態（図１の実線Ｐ１で示す状態図参照）と座席Ｓの側部後方にほぼ垂直姿勢となる収納状態（図１の二点鎖線Ｐ２で示す状態図参照）との間でヒンジ５まわりに上下方向に回動可能に設置されている。   1 to 4, the armrest 1 includes an armrest main body 2 disposed on a side portion of the seat S, and a storage table member 3 attached to a distal end portion 2 c of the armrest main body 2. The armrest body 2 is in a use state (see a state diagram indicated by a solid line P1 in FIG. 1) in the side portion of the seat S and in a storage state in which the armrest body 2 is in a substantially vertical posture behind the side portion of the seat S (two points in FIG. 1). (Refer to a state diagram indicated by a chain line P2), and is installed so as to be rotatable around the hinge 5 in the vertical direction.

一方、物置台部材３は相対向する広幅面３ａ，３ａと、この広幅面３ａ，３ａと隣接して相対向する狭幅面３ｂ，３ｂとを有する断面長方形や断面楕円形状など（図示例では断面長方形状）に形成される。そして、物置台部材３は、これの回動基端部３ｃとアームレスト本体２の先端部２ｃとを突き合せ、且つその突き合せ面間にアームレスト本体２の長手方向に沿うよう組み込まれたシャフト６まわりに広幅面３ａ，３ａを上下向きに、狭幅面３ｂ，３ｂを側方に向ける状態（図４に二点鎖線で示す状態図、図５参照）と、広幅面３ａ，３ａを側方に向け、狭幅面３ｂ，３ｂを上下向きにする状態（図１、図４の実線で示す状態図参照）との間で回動可能に設けている。物置台部材３の広幅面３ａは、図示例ではカップや飲料缶などを立てられる凹部４を設けてカップホルダーに使用できるようにしてなるが、そのほかに、蓋付き灰皿を備えたり、あるいは小物置き等に使用できるように構成したりすることもできる。   On the other hand, the storage table member 3 has a cross-sectional rectangle or a cross-sectional oval shape having wide surfaces 3a and 3a facing each other and narrow surfaces 3b and 3b facing each other adjacent to the wide surfaces 3a and 3a. (Rectangular shape). The storage table member 3 has a shaft 6 assembled so as to abut the rotation base end 3c of the storage table 3 and the distal end 2c of the armrest body 2 and to extend along the longitudinal direction of the armrest body 2 between the butted surfaces. A state in which the wide surfaces 3a, 3a are directed upward and downward, and the narrow surfaces 3b, 3b are directed to the sides (see a state diagram shown by a two-dot chain line in FIG. 4, FIG. 5), and the wide surfaces 3a, 3a are directed to the sides The narrow-width surfaces 3b and 3b are provided so as to be rotatable between a state where the narrow-width surfaces 3b, 3b are directed upward (see a state diagram indicated by a solid line in FIGS. 1 and 4). In the illustrated example, the wide surface 3a of the storage table member 3 is provided with a recess 4 for standing a cup, a beverage can, etc., so that it can be used as a cup holder. It can also be configured so that it can be used.

シャフト６は、図６、図７に示すように、円周一部に平坦面７ａが形成された取付部７と、この取付部７の一端にフランジ部８を介して一体に突出されかつ円周対向部に平坦面９ａ，９ａが形成された小径軸部９と、この小径軸部９の先端に設けられた雄ねじ１０とからなる。   As shown in FIGS. 6 and 7, the shaft 6 includes a mounting portion 7 having a flat surface 7 a formed on a part of the circumference thereof, and one end of the mounting portion 7 protrudes integrally through a flange portion 8 and has a circumferential shape. A small-diameter shaft portion 9 having flat surfaces 9a and 9a formed on the opposing portion, and a male screw 10 provided at the tip of the small-diameter shaft portion 9 are provided.

そして、図６に示すように、シャフト６は取付部７をアームレスト本体２の先端部２ｃに該アームレスト本体２の長手方向に沿うよう挿入され、止めねじ１１で固定される。シャフト６の小径軸部９はアームレスト本体２の先端部２ｃから突出され、物置台部材３の回動基端部３ｃの端面に止めねじ１２で固定された軸受プレート１３の軸受孔１４に挿通される。シャフト６の小径軸部９にはフリクション機構１５を備えるチルトヒンジとしてなり、物置台部材３をシャフト６まわりに回動させると、軸受プレート１３が共に回動し、その際にフリクション機構１５により生じる摩擦力によって、物置台部材３を任意の回動角度で停止保持することができるようになっている。   Then, as shown in FIG. 6, the shaft 6 has the attachment portion 7 inserted into the distal end portion 2 c of the armrest body 2 along the longitudinal direction of the armrest body 2, and fixed with a set screw 11. The small-diameter shaft portion 9 of the shaft 6 protrudes from the distal end portion 2 c of the armrest body 2 and is inserted into the bearing hole 14 of the bearing plate 13 fixed to the end surface of the rotating base end portion 3 c of the storage table member 3 with a set screw 12. The The small-diameter shaft portion 9 of the shaft 6 is a tilt hinge provided with a friction mechanism 15, and when the storage table member 3 is rotated around the shaft 6, the bearing plate 13 rotates together, and the friction generated by the friction mechanism 15 at that time The object table member 3 can be stopped and held at an arbitrary rotation angle by the force.

フリクション機構１５は、図６、図７に示すように、シャフト６の小径軸部９に、その円周一部に係止爪１６ａを有する回動角規制座金１６と座金１７を回り止め状に挿通し、その座金１７と軸受プレート１３の一側面との間にステンレス鋼や燐青銅等の機械的強度及び耐摩耗性に優れる材料からなる第１フリクション座金１８をその中心部に設けた挿通孔１８ａを小径軸部９に挿通させることで配置させている。回動角規制座金１６の係止爪１６ａは、物置台部材３と共に軸受プレート１３が所定角度（例えば、９０度）だけ回動することにより該軸受プレート１３の円周上に設けた切欠１３ａ内の一端壁部１３ｂ又は他端壁部１３ｄに衝当係合するようになしている。これにより、物置台部材３が広幅面３ａを上下向きにする状態と、側方に向ける状態とにそれぞれ確実に停止保持できるようにしている。なお、第１フリクション座金１８にはグリス溜りとなる小孔１８ｂを設けてある。   As shown in FIGS. 6 and 7, the friction mechanism 15 is inserted into the small-diameter shaft portion 9 of the shaft 6 with a rotation angle restricting washer 16 and a washer 17 having a locking claw 16 a on a part of the circumference thereof in a non-rotating manner. A first friction washer 18 made of a material having excellent mechanical strength and wear resistance, such as stainless steel or phosphor bronze, is provided between the washer 17 and one side surface of the bearing plate 13. Is inserted through the small-diameter shaft portion 9. The locking claw 16a of the rotation angle restricting washer 16 is located in a notch 13a provided on the circumference of the bearing plate 13 by rotating the bearing plate 13 together with the object table member 3 by a predetermined angle (for example, 90 degrees). The one end wall portion 13b or the other end wall portion 13d is abuttingly engaged. Thereby, the storage table member 3 can be surely stopped and held in a state where the wide surface 3a is directed upward and a state where the wide surface 3a is directed sideways. The first friction washer 18 is provided with a small hole 18b that serves as a grease reservoir.

そして、軸受プレート１３よりその他側面に突出する小径軸部９には、ステンレス鋼や燐青銅等の機械的強度及び耐摩耗性に優れる材料からなる第２フリクション座金１９をその中心部に設けた挿通孔１９ａを小径軸部９に挿通させるとともに、その円周一部に設けた係止爪１９ｃを軸受プレート１３に設けた係止孔１３ｃに係合させることで第２フリクション座金１９の一側面を軸受プレート１３の他側面に一体的に重合固定している。さらに、第２フリクション座金１９の他側面側には、第３フリクション座金２０をその中心部に設けた挿通孔２０ａを小径軸部９に挿通させて配置させる。第２，３フリクション座金１９，２０には、第１フリクション座金１８と同様に、それぞれにグリス溜りとなる小孔１９ｂ、２０ｂを設けてある。   The small-diameter shaft portion 9 that protrudes from the bearing plate 13 to the other side surface is inserted with a second friction washer 19 made of a material having excellent mechanical strength and wear resistance, such as stainless steel or phosphor bronze, at the center thereof. The hole 19a is inserted into the small-diameter shaft portion 9, and a locking claw 19c provided in a part of the circumference of the hole 19a is engaged with a locking hole 13c provided in the bearing plate 13, whereby one side surface of the second friction washer 19 is bearing. The plate 13 is integrally fixed to the other side of the plate 13. Further, on the other side of the second friction washer 19, an insertion hole 20 a provided with a third friction washer 20 at the center thereof is inserted through the small diameter shaft portion 9. Similar to the first friction washer 18, the second and third friction washers 19 and 20 are provided with small holes 19b and 20b, respectively, which serve as grease reservoirs.

第３フリクション座金２０から突出する小径軸部９の雄ねじ１０には皿形ばね座金２１,押さえ座金２２を介して締付ナット２３を締め付ける。この締付ナット２３の締め付けにより第１フリクション座金１８を軸受プレート１３の一側面に、第３フリクション座金２０を軸受プレート１３の他側面上の第２フリクション座金１９にそれぞれ圧接させている。   A tightening nut 23 is fastened to the male screw 10 of the small diameter shaft portion 9 protruding from the third friction washer 20 via a disc-shaped spring washer 21 and a presser washer 22. By tightening the tightening nut 23, the first friction washer 18 is brought into pressure contact with one side surface of the bearing plate 13, and the third friction washer 20 is brought into pressure contact with the second friction washer 19 on the other side surface of the bearing plate 13.

しかるときは、物置台部材３を軸受プレート１３と共にシャフト６まわりに回動させることによって、第１フリクション座金１８と軸受プレート１３の一側面との間、および軸受プレート１３の他側面上の第２フリクション座金１９と第３フリクション座金２０との間に摩擦力が発生し、この摩擦力によって物置台部材３を任意の回動角度で停止保持させることができる。   In this case, by rotating the storage table member 3 around the shaft 6 together with the bearing plate 13, the second friction washer 18 and one side surface of the bearing plate 13 and the second side surface on the other side surface of the bearing plate 13 are used. A frictional force is generated between the friction washer 19 and the third friction washer 20, and the object table member 3 can be stopped and held at an arbitrary rotation angle by the frictional force.

このように広幅面３ａと狭幅面３ｂを有する形に形成された物置台部材３がシャフト６まわりに広幅面３ａを上向きにする状態と、広幅面３ａを側方に向ける状態との間で回動可能に設けられていると、物置台部材３は使用時には広幅面３ａが上向きになるように回動させることで、その広幅面３ａをカップやドリンク缶等を立てるカップホルダーに使用することができ、特に径大のカップをも立てることができる。広幅面３ａは、そのほかに、既述したように灰皿あるいは小物置き等に使用できるように構成することもできる。そして、物置台部材３は、不使用時には広幅面３ａが側方に向くように回動させることで狭い座席スペース内にもコンパクトに納めることができる。   The storage table member 3 formed in such a shape having the wide surface 3a and the narrow surface 3b rotates between the state in which the wide surface 3a faces upward around the shaft 6 and the state in which the wide surface 3a faces sideways. If it is provided to be movable, the storage table member 3 can be used as a cup holder for standing a cup, a drink can, etc. by rotating the wide table 3a so that the wide table 3a faces upward during use. In particular, a large-diameter cup can be set up. In addition, the wide surface 3a can also be configured so as to be used for ashtrays or small items as described above. The storage table member 3 can be compactly accommodated in a narrow seat space by rotating so that the wide surface 3a faces to the side when not in use.

次に、アームレスト１が座席Ｓの側部にほぼ水平姿勢となる使用状態（図１の実線Ｐ１で示す状態図参照）と座席Ｓの側部後方にほぼ垂直姿勢となる収納状態（図１の二点鎖線Ｐ２で示す状態図参照）とにわたって上下方向に回動するようにアームレスト本体２の回動基端部２ｄと座席Ｓ側とを接合するヒンジ５について説明する。   Next, the armrest 1 is in a use state (see the state diagram indicated by the solid line P1 in FIG. 1) in the side portion of the seat S and in a storage state in which the armrest 1 is in a substantially vertical posture behind the side portion of the seat S (see FIG. 1). The hinge 5 that joins the pivot base end 2d of the armrest body 2 and the seat S side so as to pivot in the vertical direction across the two-dot chain line P2).

図１〜４に示すように、ヒンジ５は、アームレスト本体２の回動基端部２ｄ下面に取付ビス３０で取付けられてカム面３１を有するカム部材３２と、開口上端部３５ａにカム部材３２をヒンジ軸３４回りに回動自在に枢支連結した断面四角形の有底筒状のばね収納ケース３５と、このばね収納ケース３５内に上下方向に摺動自在に収納され、カム部材３２のカム面３１に摺接する突子３６ａを上端に有する断面四角形状のカムフォロア（スライダー）３６と、ばね収納ケース３５内のカムフォロア３６の下側に収納され、カムフォロア３６を常にカム部材３２のカム面３１に向けて押付け付勢する圧縮コイルばね等によるばね部材３７とを備える。   As shown in FIGS. 1 to 4, the hinge 5 includes a cam member 32 having a cam surface 31 attached to the lower surface of the rotation base end portion 2 d of the armrest body 2 with a mounting screw 30, and a cam member 32 on the opening upper end portion 35 a. And a bottomed cylindrical spring storage case 35 that is pivotally connected around a hinge shaft 34, and is slidably stored in the spring storage case 35 in the vertical direction. The cam follower (slider) 36 having a quadrangular cross section at the upper end with a protrusion 36 a that is in sliding contact with the surface 31 and the cam follower 36 in the spring storage case 35 are accommodated below the cam follower 36. And a spring member 37 made of a compression coil spring or the like that is pressed and biased.

上記カム部材３２のカム面３１はヒンジ軸３４の軸心を略中心にして描かれる第１曲縁３１ａと、この第1曲縁３１ａに連続して描かれる第２曲縁３１ｂとを有する形に形成されている。上記ばね部材３７は、後述する説明で明らかなようにアームレスト１の自重による使用状態方向のモーメントに抗してカム部材３２を含むアームレスト１に収納状態方向のモーメントを与える強さを有するものが使用される。   The cam surface 31 of the cam member 32 has a first curved edge 31a drawn about the axis of the hinge shaft 34 and a second curved edge 31b drawn continuously from the first curved edge 31a. Is formed. The spring member 37 has a strength that gives a moment in the retracted state to the armrest 1 including the cam member 32 against the moment in the used state due to the weight of the armrest 1 as will be apparent from the description below. Is done.

ヒンジ５のばね収納ケース３５は座席Ｓ側に背凭れ部Ｂの側面下部に一体又は別体に設けられたアームレスト支持台３８を介して取付けられる。すなわち、アームレスト支持台３８の上面に取付穴３９を設け、この取付穴３９にばね収納ケース３５を抜差し可能又は抜差し不能に差し込むことによりばね収納ケース３８が座席Ｓ側に取付けられる。   The spring storage case 35 of the hinge 5 is attached to the seat S side via an armrest support base 38 provided integrally or separately at the lower side of the backrest B. That is, the mounting hole 39 is provided in the upper surface of the armrest support base 38, and the spring storage case 35 is attached to the seat S side by inserting the spring storage case 35 into the mounting hole 39 so that it can be inserted or removed.

次に、上記ヒンジ５の作動について図１〜図３を参照して説明する。
図１の仮想線Ｐ２及び図３はアームレスト１の収納状態を示している。この収納状態では、カム部材３２の第２曲縁３１ｂがカムフォロア３６の突子３６ａに当接してばね部材３７が伸長した状態にあり、これによりアームレスト１の収納状態が保持される。 Next, the operation of the hinge 5 will be described with reference to FIGS.
The phantom line P2 in FIG. 1 and FIG. 3 show the stored state of the armrest 1. In this stored state, the second curved edge 31b of the cam member 32 is in contact with the protrusion 36a of the cam follower 36 and the spring member 37 is extended, whereby the stored state of the armrest 1 is maintained.

アームレスト１をこの収納状態から図２に示す使用状態方向にヒンジ５回りに傾倒回動させて行くと、先ず、カム部材３２の第２曲縁３１ｂがカムフォロア３６の突子３６ａに摺動しながら該突子３６ａを押圧することでカムフォロア３６がばね部材３７を縮小させながら押下げられ、引続いて第２曲縁３１ｂと第１曲縁３１ａとの連続部、第１曲縁３１ａがカムフォロア３６をばね部材３７の力に抗して押下げて行くが、このときアームレスト１の使用状態への回動方向のトルクに反発するトルクがカム部材３２、カムフォロア３６及びばね部材３７により生じてそのバランスにてアームレスト１は所定回動角度位置で停止保持でき、つまり緩やかな速度で使用状態に倒すことができる。
上記カム部材３２の第１曲縁３１ａは、アームレスト１が使用状態に達する直前、すなわち開角４０°付近（図１中、仮想線Ｐ３で示す状態）から自動的に使用状態方向（矢印Ｍ方向）に回動作用を働くような曲線に形成している。これにより開角４０°付近を越える時点でアームレスト本体２から手を離してもスムーズに使用状態にすることができ、座席に座ったままの姿勢でも小さい操作力で容易に使用状態に倒すことができる。 When the armrest 1 is tilted and rotated around the hinge 5 in the use state shown in FIG. 2 from this stored state, first, the second curved edge 31b of the cam member 32 slides on the protrusion 36a of the cam follower 36. By pressing the protrusion 36a, the cam follower 36 is pushed down while reducing the spring member 37. Subsequently, the continuous portion of the second curved edge 31b and the first curved edge 31a, and the first curved edge 31a is the cam follower 36. Is pushed down against the force of the spring member 37. At this time, a torque repelling the torque in the rotational direction to the use state of the armrest 1 is generated by the cam member 32, the cam follower 36, and the spring member 37, and the balance thereof. The armrest 1 can be stopped and held at a predetermined rotational angle position, that is, it can be brought down to a use state at a moderate speed.
The first curved edge 31a of the cam member 32 is automatically used (direction indicated by an arrow M) immediately before the armrest 1 reaches the use state, that is, around an opening angle of 40 ° (a state indicated by a virtual line P3 in FIG. 1). ) Is formed into a curve that acts to rotate. As a result, even when the armrest body 2 is released when the angle exceeds about 40 °, the armrest body 2 can be smoothly used, and can be easily brought down to use with a small operating force even while sitting on the seat. it can.

アームレスト１の使用状態では、図２に示すように、カムフォロア３６の突子３６ａがカム部材３２の第１曲縁３１ａに位置してばね部材３７が最も圧縮した状態で確実に保持される。
使用後に、アームレスト１を手で持ち上げて収納状態に戻すには、カム部材３２、カムフォロア３６及びばね部材３７によって生じている使用状態への回動方向のトルクに反発するトルクの作用により軽い操作力でアームレスト１を収納状態に戻すことができる。その際、カム部材３２の第２曲縁３１ｂは、アームレスト１が開角５０°付近（図１中、仮想線Ｐ４で示す状態）を越える時点でアームレスト１から手を離してもばね部材３７の付勢力で自動的に収納状態方向（矢印Ｎ方向）に回動作用を働くような曲線に形成している。このようにアームレスト１を使用状態に立ち上げるときに、大きな操作力を必要としないようにしてあるため、座席Ｓに座ったままでもアームレスト１を容易に収納させることができる。 In the use state of the armrest 1, as shown in FIG. 2, the protrusion 36 a of the cam follower 36 is positioned at the first curved edge 31 a of the cam member 32, and the spring member 37 is reliably held in the most compressed state.
In order to lift the armrest 1 by hand and return it to the stored state after use, a light operating force is generated by the action of the torque repelling the torque in the rotational direction to the use state generated by the cam member 32, the cam follower 36 and the spring member 37. Thus, the armrest 1 can be returned to the stored state. At that time, the second curved edge 31b of the cam member 32 is formed on the spring member 37 even if the armrest 1 is released from the armrest 1 when the armrest 1 exceeds an opening angle of about 50 ° (indicated by the phantom line P4 in FIG. 1). It is formed in a curve that automatically rotates in the storage state direction (arrow N direction) by the urging force. Since the armrest 1 is not required to have a large operating force when the armrest 1 is brought up in use as described above, the armrest 1 can be easily stored even while sitting on the seat S.

アームレスト１の不使用時には該アームレスト本体２を座席Ｓの側部後方にほぼ垂直姿勢となるように収納することにより座席スペースを座席にフルに使用できる。   When the armrest 1 is not in use, the armrest body 2 can be fully used in the seat by storing the armrest body 2 in a substantially vertical posture behind the side of the seat S.

図８（ａ），（ｂ）、図９は他の実施例（請求項２記載の発明に対応）を示すアームレストの斜視図である。この実施例では、アームレスト１は相対向する広幅面２ａ，２ａと、この広幅面２ａ，２ａと隣接して相対向する狭幅面２ｂ，２ｂとを有する断面長方形や楕円形状など（図示例では断面長方形状）に形成されたアームレスト本体２と、同じく相対向する広幅面３ａ，３ａと、この広幅面３ａ，３ａと隣接して相対向する狭幅面３ｂ，３ｂとを有する断面長方形や楕円形状など（図示例では断面長方形状）に形成された物置台部材３とを備える。   FIGS. 8A, 8B, and 9 are perspective views of an armrest showing another embodiment (corresponding to the invention of claim 2). In this embodiment, the armrest 1 has a cross-sectional rectangle or ellipse shape having wide surfaces 2a and 2a facing each other and narrow surfaces 2b and 2b facing each other adjacent to the wide surfaces 2a and 2a (in the illustrated example, the cross-section is a cross-section). (Rectangular) armrest body 2, cross-sectional rectangle or ellipse shape having wide surfaces 3 a, 3 a that face each other, and narrow surfaces 3 b, 3 b that face each other adjacent to the wide surfaces 3 a, 3 a And a storage table member 3 formed in a rectangular shape in the illustrated example.

アームレスト本体２はこれの回動基端部２ｄをアームレスト本体２とは別体のアームレスト後部２５とアームレスト本体２の長手方向に沿うシャフト２６を介して突き合せ接合してなる。これによりアームレスト本体２はアームレスト後部２５に対しシャフト２６まわりに広幅面２ａ，２ａを上下向きに、狭幅面２ｂ，２ｂを側方に向ける状態（図８（ｂ）参照）と、広幅面２ａ，２ａを側方に向け、狭幅面２ｂ，２ｂを上下向きにする状態（図８（ａ）参照）との間で回動可能に設けられている。
一方、物置台部材３はアームレスト本体２の先端部２ｃに該アームレスト本体長手方向に沿うシャフト２７まわりに広幅面３ａ，３ａを上下向きに、狭幅面３ｂ，３ｂを側方に向ける状態（図８（ｂ）参照）と、広幅面３ａ，３ａを側方に向け、狭幅面３ｂ，３ｂを上下向きにする状態（図８（ａ）参照）との間で回動可能に設けられている。 The armrest body 2 is formed by abutting and joining the rotation base end portion 2 d of the armrest body 2 via an armrest rear portion 25, which is separate from the armrest body 2, and a shaft 26 along the longitudinal direction of the armrest body 2. As a result, the armrest body 2 has a state in which the wide surfaces 2a, 2a are directed upward and downward and the narrow surfaces 2b, 2b are directed laterally around the shaft 26 with respect to the armrest rear portion 25 (see FIG. 8B), and the wide surfaces 2a, 2a, It is provided so as to be able to rotate between a state (see FIG. 8A) in which the narrow surfaces 2b and 2b are directed vertically with 2a facing sideways.
On the other hand, the storage table member 3 has a state in which the wide surfaces 3a, 3a are directed upward and downward and the narrow surfaces 3b, 3b are directed laterally around the shaft 27 along the longitudinal direction of the armrest body at the distal end portion 2c of the armrest body 2 (FIG. 8). (B)) and a state in which the wide surfaces 3a and 3a are directed to the side and the narrow surfaces 3b and 3b are vertically oriented (see FIG. 8A).

そして、アームレスト後部２５は座席Ｓの背凭れ部Ｂの側面下部に一体又は別体に設けられたアームレスト支持台３８にヒンジ２４まわりに上下方向に回動するよう取付けられている。ヒンジ２４は、図９に示すように、アームレスト後部２５の下面にカム部材３２を取付ビス３０で取付ける以外は図２、図３に示す上記実施例のヒンジ５と同じものが使用されるため、同一部材に同一符号を付してその説明を省略する。シャフト２６，２７は上記実施例のヒンジ６と同じように図７に示すごときフリクション機構１５を備えるものが使用される。   The armrest rear portion 25 is attached to an armrest support base 38 that is provided integrally or separately at the lower side of the backrest portion B of the seat S so as to rotate vertically around the hinge 24. As shown in FIG. 9, the hinge 24 is the same as the hinge 5 of the above embodiment shown in FIGS. 2 and 3 except that the cam member 32 is attached to the lower surface of the armrest rear portion 25 with the mounting screw 30. The same reference numerals are assigned to the same members, and descriptions thereof are omitted. As the shafts 26 and 27, those having the friction mechanism 15 as shown in FIG.

この実施例のアームレスト１によれば、アームレスト本体２又は物置台部材３は使用時には各広幅面２ａ，３ａが上向きになるように回動させることで、アームレスト本体２の広幅面２ａは隣り合って座る者と共同して肘掛けに使用することができ、物置台部材３の広幅面３ａはカップ立てや灰皿、あるいは小物置き等に広く使用することができる。そして、アームレスト本体２又は物置台部材３の不使用時には各広幅面２ａ，３ａが側方に向き、各狭幅面２ｂ，３ｂが上下向きになるように回動させることで狭い座席スペース内にもコンパクトに納めることができる。   According to the armrest 1 of this embodiment, the armrest body 2 or the storage table member 3 is rotated so that the wide surfaces 2a and 3a face upward when in use, so that the wide surfaces 2a of the armrest body 2 are adjacent to each other. It can be used for armrests jointly with a seated person, and the wide surface 3a of the storage table member 3 can be widely used for a cup stand, an ashtray, or a small item storage. Further, when the armrest body 2 or the storage table member 3 is not used, the wide surfaces 2a and 3a are turned sideways and the narrow surfaces 2b and 3b are turned up and down so that the narrow seat space can be used. It can be stored compactly.

また、アームレスト後部２５がヒンジ２４まわりに上下方向に回動するよう取付けられているので、アームレスト本体２は物置台部材３ごと座席Ｓの側部後方にほぼ垂直姿勢となる収納状態と、座席Ｓの側部にほぼ水平姿勢となる使用状態（図８（ａ）の実線で示す状態図参照）とにヒンジ２４まわりに切換えることができる。
その際、上記実施例の場合と同様に、アームレスト１をこの収納状態から使用状態方向にヒンジ２４まわりに回動させて行くと、先ず、カム部材３２の第２曲縁３１ｂがカムフォロア３６の突子３６ａに摺動しながら該突子３６ａを押圧することでカムフォロア３６がばね部材３７を縮小させながら押下げられ、引続いて第２曲縁３１ｂと第１曲縁３１ａとの連続部、第１曲縁３１ａがカムフォロア３６をばね部材３７の力に抗して押下げて行くが、このときアームレスト１の使用状態への回動方向のトルクに反発するトルクがカム部材３２、カムフォロア３６及びばね部材３７により生じてそのバランスにてアームレスト１は所定回動角度位置で停止保持でき、つまり緩やかな速度で使用状態に倒すことができる。
また、カム部材３２の第１曲縁３１ａは、アームレスト１が使用状態に達する直前、すなわち開角４０°付近から自動的に倒れる作用を働くような曲線に形成している。これにより開角４０°付近を越える時点でアームレスト本体２から手を離してもスムーズに使用状態にすることができ、座席に座ったままの姿勢でも小さい操作力で容易に使用状態に倒すことができる。 In addition, since the armrest rear portion 25 is mounted so as to pivot up and down around the hinge 24, the armrest main body 2 and the storage table member 3 together with the stowed state in a substantially vertical posture behind the side of the seat S and the seat S It is possible to switch around the hinge 24 to a use state (refer to a state diagram shown by a solid line in FIG. 8A) in which the side portion is in a substantially horizontal posture.
At that time, as in the case of the above-described embodiment, when the armrest 1 is rotated around the hinge 24 from the housed state toward the use state, first, the second curved edge 31b of the cam member 32 protrudes from the cam follower 36. By pressing the protrusion 36a while sliding on the child 36a, the cam follower 36 is pushed down while reducing the spring member 37. Subsequently, the continuous portion of the second curved edge 31b and the first curved edge 31a, the first The one curved edge 31a pushes down the cam follower 36 against the force of the spring member 37. At this time, the torque that repels the torque in the direction of rotation of the armrest 1 to the use state is applied to the cam member 32, the cam follower 36, and the spring. Due to the balance generated by the member 37, the armrest 1 can be stopped and held at a predetermined rotational angle position, that is, it can be brought down to a use state at a moderate speed.
Further, the first curved edge 31a of the cam member 32 is formed in a curve that acts to automatically fall down immediately before the armrest 1 reaches the use state, that is, near an opening angle of 40 °. As a result, even when the armrest body 2 is released when the angle exceeds about 40 °, the armrest body 2 can be smoothly used, and can be easily brought down to use with a small operating force even while sitting on the seat. it can.

また、上記実施例の場合と同様に、アームレスト１の使用状態では、カムフォロア３６の突子３６ａがカム部材３２の第１曲縁３１ａに位置してばね部材３７が最も圧縮した状態で確実に保持される。
使用後に、アームレスト１を手で持ち上げて収納状態に戻すには、カム部材３２、カムフォロア３６及びばね部材３７によって生じている使用状態への回動方向のトルクに反発するトルクの作用により軽い操作力でアームレスト１を収納状態に戻すことができる。その際、カム部材３２の第２曲縁３１ｂは、アームレスト１が開角５０°付近を越える時点でアームレスト１から手を離してもばね部材３７の付勢力で自動的に収納状態に立ち上がる作用を働くような曲線に形成している。このようにアームレスト１を使用状態に立ち上げるときに、大きな操作力を必要としないようにしてあるため、座席に座ったままでも容易に収納させることができる。 Similarly to the above embodiment, when the armrest 1 is used, the protrusion 36a of the cam follower 36 is positioned at the first curved edge 31a of the cam member 32, and the spring member 37 is securely held in the most compressed state. Is done.
In order to lift the armrest 1 by hand and return it to the stored state after use, a light operating force is generated by the action of the torque repelling the torque in the rotational direction to the use state generated by the cam member 32, the cam follower 36 and the spring member 37. Thus, the armrest 1 can be returned to the stored state. At that time, the second curved edge 31b of the cam member 32 acts to automatically stand up to the retracted state by the biasing force of the spring member 37 even when the armrest 1 is released from the armrest 1 when the armrest 1 exceeds an opening angle of about 50 °. It is formed into a working curve. In this way, when the armrest 1 is raised to the use state, a large operating force is not required, so that the armrest 1 can be easily stored even while sitting on the seat.

図１０は更に他の実施例（請求項３記載の発明に対応）を示すアームレストの斜視図である。この実施例では、アームレスト１は相対向する広幅面２ａ，２ａと、この広幅面２ａ，２ａと隣接して相対向する狭幅面２ｂ，２ｂとを有する断面長方形や楕円形状など（図示例では断面長方形状）に形成されたアームレスト本体２を備え、物置台部材３はアームレスト本体２の先端側に一体に形成している。このアームレスト本体２は、図９に示す実施例の場合と同様に、その回動基端部２ｄが座席Ｓの背凭れ部Ｂの側面下部に設けたアームレスト支持台３８にヒンジ２４まわりに上下方向に回動するよう取付けられたアームレスト後部２５に、アームレスト本体２の長手方向に沿うシャフト２６まわりに広幅面２ａ，２ａを側方に向け、狭幅面２ｂ，２ｂを上下向きにする状態（図１０の実線状態図参照）と、広幅面２ａ，２ａを上下向きに、狭幅面２ｂ，２ｂを側方に向ける状態との間で回動可能に設けられている。なお、ヒンジ２４は図９に示す上記実施例のヒンジ２４と同じものが使用され、シャフト２６は図７に示す上記実施例のヒンジ６と同じようにフリクション機構１５を備えるものが使用される。   FIG. 10 is a perspective view of an armrest showing still another embodiment (corresponding to the invention described in claim 3). In this embodiment, the armrest 1 has a cross-sectional rectangle or ellipse shape having wide surfaces 2a and 2a facing each other and narrow surfaces 2b and 2b facing each other adjacent to the wide surfaces 2a and 2a (in the illustrated example, the cross-section is a cross-section). The armrest body 2 is formed in a rectangular shape, and the storage table member 3 is integrally formed on the distal end side of the armrest body 2. As with the embodiment shown in FIG. 9, the armrest body 2 is vertically moved around the hinge 24 on the armrest support base 38 provided at the lower side surface of the backrest portion B of the seat S. A state in which the wide surfaces 2a, 2a are directed to the sides around the shaft 26 along the longitudinal direction of the armrest body 2 and the narrow surfaces 2b, 2b are directed upward and downward (see FIG. 10). ) And a state in which the wide surfaces 2a, 2a are directed vertically and the narrow surfaces 2b, 2b are directed to the sides. The same hinge 24 as that of the above-described embodiment shown in FIG. 9 is used, and the shaft 26 having the friction mechanism 15 is used similarly to the hinge 6 of the above-described embodiment shown in FIG.

この実施例のアームレスト１においても、アームレスト本体２は使用時には広幅面２ａが上向きになるように回動させることで、その広幅面２ａを隣り合って座る者と共同して肘掛けに使用することができ、不使用時には広幅面２ａが側方に向くように回動させることで狭い座席スペース内にもコンパクトに納めることができる。   Also in the armrest 1 of this embodiment, the armrest body 2 can be used for armrest in cooperation with a person sitting next to it by rotating the armrest body 2 so that the wide surface 2a faces upward when in use. When not in use, the wide surface 2a can be turned so that the wide surface 2a faces to the side, so that it can be compactly accommodated in a narrow seat space.

また、上記実施例の場合と同様に、アームレスト１をこの収納状態から使用状態方向にヒンジ２４まわりに回動させて行くとき、アームレスト１の使用状態への回動方向のトルクに反発するトルクがカム部材３２、カムフォロア３６及びばね部材３７により生じてそのバランスにてアームレスト１は所定回動角度位置で停止保持でき、つまり緩やかな速度で使用状態に倒すことができる。その際、カム部材３２の第１曲縁３１ａは、アームレスト１が使用状態に達する直前、すなわち開角４０°付近から自動的に倒れる作用を働くような曲線に形成することによりアームレスト本体２から手を離してもスムーズに使用状態にすることができ、座席に座ったままの姿勢でも小さい操作力で容易に使用状態に倒すことができることは上記実施例の場合と同様である。   Further, as in the case of the above embodiment, when the armrest 1 is rotated around the hinge 24 from the stored state toward the use state, a torque repelling the torque in the rotation direction to the use state of the armrest 1 is generated. Due to the cam member 32, the cam follower 36 and the spring member 37, the armrest 1 can be stopped and held at a predetermined rotation angle position by the balance, that is, it can be brought down to a use state at a moderate speed. At this time, the first curved edge 31a of the cam member 32 is formed from a curved line that acts to automatically fall down immediately before the armrest 1 reaches the use state, that is, near an opening angle of 40 °, so As in the case of the above-described embodiment, it is possible to smoothly enter the use state even when released, and to easily fall to the use state with a small operating force even when sitting in the seat.

また、アームレスト１の使用状態では、カムフォロア３６の突子３６ａがカム部材３２の第１曲縁３１ａに位置してばね部材３７が最も圧縮した状態で確実に保持されること、使用後に、アームレスト１を手で持ち上げて収納状態に戻すには、カム部材３２、カムフォロア３６及びばね部材３７によって生じている使用状態への回動方向のトルクに反発するトルクの作用により軽い操作力でアームレスト１を収納状態に戻すことができること、更に、その際、カム部材３２の第２曲縁３１ｂは、アームレスト１が開角５０°付近を越える時点でアームレスト１から手を離してもばね部材３７の付勢力で自動的に収納状態に立ち上がる作用を働くような曲線に形成することにより座席に座ったままでも容易に収納させることができることは上記実施例の場合と同様である。   Further, when the armrest 1 is in use, the protrusion 36a of the cam follower 36 is positioned on the first curved edge 31a of the cam member 32 and the spring member 37 is securely held in the most compressed state. To return the armrest 1 to the retracted state by hand, the armrest 1 is retracted with a light operating force by the action of the torque repelling the torque in the rotational direction to the use state generated by the cam member 32, the cam follower 36 and the spring member 37. In addition, the second curved edge 31b of the cam member 32 can be returned to the state by the urging force of the spring member 37 even if the armrest 1 is released from the armrest 1 when the armrest 1 exceeds the opening angle of about 50 °. It is possible to easily store even while sitting in the seat by forming a curve that works to automatically stand up to the storage state施例 is the same as in the case of.

なお、本発明のアームレストは自動車や電車の座席のみならず、その他に椅子等にも同様に適用できることは言うまでもない。   Needless to say, the armrest of the present invention can be applied not only to the seats of automobiles and trains but also to chairs and the like.

本発明の一実施例のアームレストを座席に取付けた状態で示す一部破断側面図である。It is a partially broken side view which shows the armrest of one Example of this invention in the state attached to the seat. 図１におけるアームレストのヒンジ部分の拡大図である。It is an enlarged view of the hinge part of the armrest in FIG. 同アームレストの収納状態におけるヒンジ部分の拡大断面図である。It is an expanded sectional view of the hinge part in the storage state of the armrest. 同アームレストの斜視図である。It is a perspective view of the armrest. 同アームレストの物置台部材の使用状態を示す斜視図である。It is a perspective view which shows the use condition of the storage stand member of the armrest. 同アームレストのアームレスト本体と物置台部材を接続するシャフト部分の断面図である。It is sectional drawing of the shaft part which connects the armrest main body of the same armrest, and a storage stand member. 同アームレストのシャフト部分の分解斜視図である。It is a disassembled perspective view of the shaft part of the armrest. 他の実施例を示すアームレストの斜視図であり、（ａ）はアームレスト本体と物置台部材をそれぞれの狭幅面を上向きにした状態図、（ｂ）はアームレスト本体と物置台部材をそれぞれの広幅面を上向きにした状態図である。It is a perspective view of the armrest which shows another Example, (a) is a state figure which made each armrest main body and the storage stand member the narrow surface upward, (b) is each wide surface which makes the armrest main body and the storage stand member each wide surface FIG. 図７におけるアームレストのヒンジ部分の拡大図である。It is an enlarged view of the hinge part of the armrest in FIG. 更に他の実施例を示すアームレストの斜視図であり、アームレスト本体と物置台部材をそれぞれの狭幅面を上向きにした状態図である。Furthermore, it is a perspective view of the armrest which shows other Examples, and is a state figure which made the armrest main body and the storage base member each upward with the narrow surface.

符号の説明Explanation of symbols

Ｓ 座席
１ アームレスト
２ アームレスト本体
２ａ アームレスト本体の広幅面
２ｂ アームレスト本体の狭幅面
３ 物置台部材
３ａ 物置台部材の広幅面
３ｂ 物置台部材の狭幅面
５，２４ ヒンジ
２６，２７ シャフト
３１ カム面
３２ カム部材
３４ ヒンジ軸
３５ ばね収納ケース
３６ カムフォロア
３６ａ 突子
３７ ばね部材

S Seat 1 Armrest 2 Armrest body 2a Wide surface of armrest body 2b Narrow surface of armrest body 3 Storage table member 3a Wide surface of storage table member 3b Narrow surface of storage table member 5,24 Hinge 26, 27 Shaft 31 Cam surface 32 Cam Member 34 Hinge shaft 35 Spring storage case 36 Cam follower 36a Projection 37 Spring member

Claims (5)

座席の側部に配置されたアームレスト本体の先端側に、広幅面と狭幅面とを有する形に形成された物置台部材が前記アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられており、 前記アームレスト本体が前記座席の側部後方にほぼ垂直姿勢となる収納状態と前記座席の側部にほぼ水平姿勢となる使用状態との間でヒンジまわりに上下方向に回動可能に設置されており、
前記ヒンジは、前記アームレスト本体の回動基端側に備えられカム面を有するカム部材と、このカム部材にヒンジ軸回りに回動自在に枢支連結され、前記座席側に取付けられたばね収納ケースと、このばね収納ケース内に上下方向に摺動自在に収納され、前記カム面に摺接する突子を有するカムフォロアと、前記ばね収納ケース内に収納され、前記カムフォロアを常に前記カム面に向けて押付け付勢するばね部材と、を備え、前記カム部材、カムフォロア及びばね部材によって前記アームレスト本体の使用状態への回動方向のトルクに反発するトルクを生じさせてそのバランスにて前記アームレスト本体が所定の回動角度位置に停止保持するようにしてなることを特徴とする、アームレスト。 A state in which a table member formed in a shape having a wide surface and a narrow surface on the front end side of the armrest body arranged on the side portion of the seat has the wide surface upward around the shaft along the longitudinal direction of the armrest body And a state in which the wide surface is turned sideways, and is provided so that the armrest main body is in a stowed state in which the armrest body is in a substantially vertical posture behind the side of the seat and substantially horizontal in the side of the seat. It is installed so that it can rotate up and down around the hinge between the posture and the usage state,
The hinge is provided on the rotation base end side of the armrest body, and a cam member having a cam surface. The spring storage case is pivotally connected to the cam member so as to be rotatable about a hinge axis and attached to the seat side. And a cam follower that is slidably moved in the vertical direction in the spring storage case and has a protrusion that is in sliding contact with the cam surface, and is stored in the spring storage case, and the cam follower is always directed toward the cam surface. A spring member that presses and biases, and the cam member, the cam follower, and the spring member generate a torque that repels the torque in the rotational direction to the use state of the armrest body, and the armrest body is predetermined by the balance thereof. An armrest characterized in that the armrest is configured to be stopped and held at the rotational angle position. 座席の側部に配置されて広幅面と狭幅面とを有する形に形成されたアームレスト本体と、該アームレスト本体の先端側に取付けられて広幅面と狭幅面とを有する形に形成された物置台部材とを備え、前記アームレスト本体および物置台部材がそれぞれ前記アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられており、
前記アームレスト本体が前記座席の側部後方にほぼ垂直姿勢となる収納状態と前記座席の側部にほぼ水平姿勢となる使用状態との間でヒンジまわりに上下方向に回動可能に設置されており、
前記ヒンジは、前記アームレスト本体の回動基端側に備えられカム面を有するカム部材と、このカム部材にヒンジ軸回りに回動自在に枢支連結され、前記座席側に取付けられたばね収納ケースと、このばね収納ケース内に上下方向に摺動自在に収納され、前記カム面に摺接する突子を有するカムフォロアと、前記ばね収納ケース内に収納され、前記カムフォロアを常に前記カム面に向けて押付け付勢するばね部材と、を備え、前記カム部材、カムフォロア及びばね部材によって前記アームレスト本体の使用状態への回動方向のトルクに反発するトルクを生じさせてそのバランスにて前記アームレスト本体が所定の回動角度位置に停止保持するようにしてなることを特徴とする、アームレスト。 An armrest body disposed on the side portion of the seat and formed in a shape having a wide surface and a narrow surface, and a storage table attached to the distal end side of the armrest body and formed in a shape having a wide surface and a narrow surface Members, and the armrest body and the pedestal table member are rotatable between a state in which the wide surface faces upward and a state in which the wide surface faces sideways around the shaft along the longitudinal direction of the armrest body, respectively. Provided,
The armrest body is installed so as to be pivotable vertically around the hinge between a stowed state in which the armrest body is in a substantially vertical posture behind the side of the seat and a use state in which the armrest body is in a substantially horizontal posture on the side of the seat. ,
The hinge is provided on the rotation base end side of the armrest body, and a cam member having a cam surface. The spring storage case is pivotally connected to the cam member so as to be rotatable about a hinge axis and attached to the seat side. And a cam follower that is slidably moved in the vertical direction in the spring storage case and has a protrusion that is in sliding contact with the cam surface, and is stored in the spring storage case, and the cam follower is always directed toward the cam surface. A spring member that presses and biases, and the cam member, the cam follower, and the spring member generate a torque that repels the torque in the rotational direction to the use state of the armrest body, and the armrest body is predetermined by the balance thereof. An armrest characterized in that the armrest is configured to be stopped and held at the rotational angle position. 座席の側部に配置されて広幅面と狭幅面とを有する形に形成されたアームレスト本体が該アームレスト本体の長手方向に沿うシャフトまわりに広幅面を上向きにする状態と、広幅面を側方に向ける状態との間で回動可能に設けられており、前記アームレスト本体の先端側に物置台部材が一体に設けられており、
前記アームレスト本体が前記座席の側部後方にほぼ垂直姿勢となる収納状態と前記座席の側部にほぼ水平姿勢となる使用状態との間でヒンジまわりに上下方向に回動可能に設置されており、
前記ヒンジは、前記アームレスト本体の回動基端側に備えられカム面を有するカム部材と、このカム部材にヒンジ軸回りに回動自在に枢支連結され、前記座席側に取付けられたばね収納ケースと、このばね収納ケース内に上下方向に摺動自在に収納され、前記カム面に摺接する突子を有するカムフォロアと、前記ばね収納ケース内に収納され、前記カムフォロアを常に前記カム面に向けて押付け付勢するばね部材と、を備え、前記カム部材、カムフォロア及びばね部材によって前記アームレスト本体の使用状態への回動方向のトルクに反発するトルクを生じさせてそのバランスにて前記アームレスト本体が所定の回動角度位置に停止保持するようにしてなることを特徴とする、アームレスト。 The armrest body formed on the side of the seat and having a wide surface and a narrow surface has a state in which the wide surface faces upward around the shaft along the longitudinal direction of the armrest body, and the wide surface faces sideways. It is provided so as to be able to rotate between the direction to which it is directed, and a storage table member is integrally provided on the distal end side of the armrest body,
The armrest body is installed so as to be pivotable vertically around the hinge between a stowed state in which the armrest body is in a substantially vertical posture behind the side of the seat and a use state in which the armrest body is in a substantially horizontal posture on the side of the seat. ,
The hinge is provided on the rotation base end side of the armrest body, and a cam member having a cam surface. The spring storage case is pivotally connected to the cam member so as to be rotatable about a hinge axis and attached to the seat side. And a cam follower that is slidably moved in the vertical direction in the spring storage case and has a protrusion that is in sliding contact with the cam surface, and is stored in the spring storage case, and the cam follower is always directed toward the cam surface. A spring member that presses and biases, and the cam member, the cam follower, and the spring member generate a torque that repels the torque in the rotational direction to the use state of the armrest body, and the armrest body is predetermined by the balance thereof. An armrest characterized in that the armrest is configured to be stopped and held at the rotational angle position. 前記カム面は、前記アームレスト本体が収納状態から使用状態への回動途上において開角４０°付近から自動的に使用状態方向に回動作用を働く第１曲縁を有している、請求項１ないし３のいずれか１項に記載のアームレスト。   The cam surface has a first curved edge that automatically rotates in an in-use direction from an open angle of about 40 ° when the armrest body is in the process of rotating from a stored state to an in-use state. The armrest according to any one of 1 to 3. 前記カム面は、前記アームレスト本体が使用状態から収納状態への回動途上において開角５０°付近を越えると自動的に収納状態方向に回動作用を働く第２曲縁を有している、請求項１ないし４のいずれか１項に記載のアームレスト。

The cam surface has a second curved edge that automatically rotates in the retracted state when the armrest body exceeds an opening angle of about 50 ° during the rotation from the use state to the retracted state. The armrest according to any one of claims 1 to 4.

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JP2018061640A (en) * 2016-10-12 2018-04-19 富士フイルム株式会社 Movable type radiation generator
CN111591186A (en) * 2020-05-21 2020-08-28 北京汽车集团越野车有限公司 Car handrail, seat and car
KR102256038B1 (en) * 2020-12-03 2021-05-25 삼광산업 주식회사 A cam device for performance seats with an elevating rotation control function
CN113848013A (en) * 2021-09-19 2021-12-28 九德智能装备(常州)有限公司 Vehicle armrest torque testing equipment
US11465751B2 (en) 2020-12-28 2022-10-11 Ami Industries, Inc. Vehicle seat armrest assembly with repositionable arm pad
CN115416556A (en) * 2022-09-02 2022-12-02 浙江吉利控股集团有限公司 Rotatory handrail and car

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018061640A (en) * 2016-10-12 2018-04-19 富士フイルム株式会社 Movable type radiation generator
CN107928687A (en) * 2016-10-12 2018-04-20 富士胶片株式会社 Portable radiation generator
US10945689B2 (en) 2016-10-12 2021-03-16 Fujifilm Corporation Mobile radiation generator
CN111591186A (en) * 2020-05-21 2020-08-28 北京汽车集团越野车有限公司 Car handrail, seat and car
KR102256038B1 (en) * 2020-12-03 2021-05-25 삼광산업 주식회사 A cam device for performance seats with an elevating rotation control function
US11465751B2 (en) 2020-12-28 2022-10-11 Ami Industries, Inc. Vehicle seat armrest assembly with repositionable arm pad
CN113848013A (en) * 2021-09-19 2021-12-28 九德智能装备(常州)有限公司 Vehicle armrest torque testing equipment
CN115416556A (en) * 2022-09-02 2022-12-02 浙江吉利控股集团有限公司 Rotatory handrail and car

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