JP2005095490A - Electric lifting chair - Google Patents

Electric lifting chair Download PDF

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Publication number
JP2005095490A
JP2005095490A JP2003335360A JP2003335360A JP2005095490A JP 2005095490 A JP2005095490 A JP 2005095490A JP 2003335360 A JP2003335360 A JP 2003335360A JP 2003335360 A JP2003335360 A JP 2003335360A JP 2005095490 A JP2005095490 A JP 2005095490A
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Prior art keywords
seat
base member
tilting
rail member
tilt
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Takashi Komura
隆志 小村
Yasushi Sawada
泰 澤田
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KOMURA SEISAKUSHO KK
Komura Seisakusho:Kk
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KOMURA SEISAKUSHO KK
Komura Seisakusho:Kk
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Priority to JP2003335360A priority Critical patent/JP2005095490A/en
Publication of JP2005095490A publication Critical patent/JP2005095490A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric lifting chair allowing a user to tilt a backrest part backward and to take an appropriate posture according to the height of a seat part. <P>SOLUTION: A lifting part 3 of the electric lifting chair with the seat part 1 which can be tilted downward in the rear and the backrest part 2 which can be tilted backward can be lifted up/down. The electric lifting chair has a lifting/rearward tilting mechanism 5. When the seat part 1 is located at a low position near the floor surface, the seat part 1 is made to be located at substantially horizontal state regardless of the angle of tilting of the backrest part 2. When the seat part 1 is at an intermediate position higher than the low position, the seat part 1 is tilted downward in the rear at a smaller angle of rearward tilting than that of the backrest part 2 by the lifting/rearward tilting mechanism. When the seat part 1 is at an upper position higher than the intermediate position, the seat part 1 is tilted downward in the rear at the same angle of rearward tilting as that of the backrest part 2 by the lifting/rearward tilting mechanism. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、電動昇降椅子に関するものである。 The present invention relates to an electric lift chair.

従来より知られている電動昇降椅子は、座部と背部を有し、これらがモータ等の動力により高さ方向に昇降する。さらに、座部と背部が昇降のみ動作するもの以外にも、座部と背部が昇降しかつ座部と背部が一体的に後方へ傾斜するものがある。
座部と背部が一体的に後方へ傾斜する昇降椅子について具体的に説明すると、一定角度に固定された座部と背部とを、ガイド柱枠体に昇降駆動自在に取付ける。そして、ガイド柱枠体が略鉛直状態と後方傾斜状態との間で揺動動作するように、ガイド柱枠体を床載置枠に枢着している(例えば、特許文献1参照)。
Conventionally known electric lift chairs have a seat portion and a back portion, and these lift and lower in the height direction by the power of a motor or the like. Furthermore, in addition to the seat part and the back part that only move up and down, the seat part and the back part move up and down and the seat part and the back part integrally incline backward.
Specifically, the lifting chair in which the seat portion and the back portion integrally incline backward will be described. The seat portion and the back portion fixed at a fixed angle are attached to the guide column frame so as to be movable up and down. The guide column frame is pivotally attached to the floor mounting frame so that the guide column frame swings between a substantially vertical state and a rearward inclined state (see, for example, Patent Document 1).

従来の座部と背部とが一体的に後方へ傾斜する昇降椅子では、座部と背部とが一定角度に固定されているため、背部を所定角度まで後傾させると、座部もその角度で後傾することとなる。つまり、椅子に座った人は、背部を後傾させると膝が大きく持ち上げられた姿勢となり、下半身の体重が腰にかかり、楽に座れる姿勢を取ることができないという問題点がある。
さらに、背部を後傾させると座部も後傾するため、後傾状態にある椅子から、座った人が立ち上がり動作しにくいという問題点もある。また、座部の高さ位置に関わらず座部の後方下傾角度が一定であり、使用しにくいという問題点がある。
特開平11−128014号公報
In conventional lifting chairs in which the seat and back are integrally tilted backward, the seat and back are fixed at a fixed angle, so if the back is tilted back to a predetermined angle, the seat is also at that angle. It will tilt backwards. In other words, a person sitting on a chair has a problem that when the back is tilted backward, the knee is lifted greatly, the lower body weight is placed on the waist, and the posture cannot be taken easily.
In addition, when the back part is tilted backward, the seat part also tilts backward, so that there is also a problem that it is difficult for a seated person to stand up from a chair that is tilted backward. Further, there is a problem that the rearward downward tilt angle of the seat portion is constant regardless of the height position of the seat portion and is difficult to use.
JP 11-128014 A

解決しようとする課題は、座部をそのままの姿勢にして背部のみを後傾させることができず、背部を後傾させると必ず座部も同じ角度で後方下傾してしまうという点である。
また、背部を後傾させても楽な姿勢がとれず、背部を後傾させた状態からでは座った人が立ち上がりにくいという点である。
The problem to be solved is that the seat cannot be tilted backwards with the seat in the same posture, and if the back is tilted backward, the seat always tilts backward at the same angle.
In addition, even if the back part is tilted backward, an easy posture cannot be taken, and a person who sits down cannot easily stand up when the back part is tilted backward.

本発明は、後方下傾可能な座部と後傾可能な背部とを有する昇降部が昇降自在な電動昇降椅子に於て、上記座部が床面近くの低位置では上記背部の後傾角度に関わらず該座部を略水平状とし、かつ、上記座部が上記低位置よりも上方の中位置では上記背部の後傾角度よりも小さい角度にて該座部を後方下傾させ、かつ、上記座部が中位置よりもさらに上方の上方位置では上記背部の後傾角度と同じ角度にて該座部を後方下傾させる昇降後傾機構を備えるものである。   The present invention relates to an electric lift chair having a seat part that can be tilted rearward and a back part that can be tilted backward, and an elevator part that can be raised and lowered. Regardless of whether the seat is substantially horizontal, and the seat is in a middle position above the low position, the seat is tilted backward and downward at an angle smaller than the back tilt angle of the back, and The seat portion is provided with a lifting / lowering tilting mechanism that tilts the seat portion backward and downward at the same angle as the back tilting angle of the back portion at an upper position further above the middle position.

また、上記背部は、該背部の下端部を通過する水平軸心を揺動中心として、上記座部が取り付けられる部材の一部に枢着され、該座部の上記低位置及び上記中位置において、該背部が後傾しても該背部の上記下端部と該座部の後端部との間隔が大きく広がるのを防止したものである。   The back portion is pivotally attached to a part of a member to which the seat portion is attached, with a horizontal axis passing through a lower end portion of the back portion as a swing center, and at the low position and the middle position of the seat portion. In this case, even when the back portion is inclined backward, the gap between the lower end portion of the back portion and the rear end portion of the seat portion is prevented from being greatly widened.

また、上記昇降部は、下部の固定レール部材と上部の傾動可能な傾動レール部材とを有するガイドレールに沿って昇降すると共に上記座部及び上記背部を取着するベース部材を備え、該ベース部材は上記背部側の主ベース部材と該主ベース部材の下部と枢結される上記座部側の副ベース部材とを有し、上記昇降後傾機構は、該主ベース部材及び該副ベース部材の両者が上記傾動レール部材にガイドされた状態で該傾動レール部材を傾動させて該背部と該座部とを同じ角度にて後傾させ、また、該主ベース部材が上記傾動レール部材にガイドされかつ該副ベース部材が上記固定レール部材にガイドされた状態で該傾動レール部材を傾動させて該背部と該座部との後傾角度を異ならせるよう構成されている。   The elevating part includes a base member that elevates and lowers along a guide rail having a lower fixed rail member and an upper tiltable tilting rail member, and attaches the seat part and the back part. Has a main base member on the back side and a sub base member on the seat side that is pivotally connected to a lower portion of the main base member, and the up-and-down tilting mechanism includes the main base member and the sub base member. With the both being guided by the tilt rail member, the tilt rail member is tilted to cause the back portion and the seat portion to tilt backward at the same angle, and the main base member is guided by the tilt rail member. In addition, the tilting rail member is tilted in a state where the sub-base member is guided by the fixed rail member, and the back tilt angle of the back portion and the seat portion is made different.

また、上記副ベース部材の上部において揺動可能に下部が枢着された上記背部と上記主ベース部材とは、リンクアームにて中間部が連結されて、平行リンク機構を構成するものである。
また、上記昇降後傾機構は、上記傾動レール部材を傾動させる傾動用アクチュエータと、上記ベース部材を昇降させる昇降用アクチュエータと、を備えたものである。
また、上記昇降後傾機構は、上記ガイドレールに沿って移動する上記副ベース部材のローラが上記固定レール部材と上記傾動レール部材との遷移区間を移動する際、上記傾動レール部材の傾動を電気的に抑止させる傾動制御手段を有するものである。
Further, the back part pivotally attached to the lower part of the sub base member so as to be swingable and the main base member are connected at the intermediate part by a link arm to constitute a parallel link mechanism.
Further, the tilt mechanism after raising and lowering includes a tilting actuator that tilts the tilting rail member and a lifting actuator that raises and lowers the base member.
In addition, the tilting mechanism after the lifting / lowering mechanism electrically tilts the tilting rail member when the roller of the sub-base member that moves along the guide rail moves in a transition section between the fixed rail member and the tilting rail member. And tilt control means for deterring automatically.

本発明の電動昇降椅子は、座部の高さに応じて、背部を後傾させた際の座部の角度を変化させることができ、使用しやすい椅子が得られる。つまり、座部が低い位置では背部を後傾させてもあまり座部を後方下傾させない。これにより、背部が後傾した状態からでも座部に座った人が立ち上がり動作等しやすく、また、楽な姿勢がとれる。
さらに、座部を上昇させ背部を後傾させた状態では、座った人が座部から前方へすべり落ちないよう、座部を後方下傾させ、安全である。
The electric lift chair of the present invention can change the angle of the seat when the back is tilted backward according to the height of the seat, and an easy-to-use chair is obtained. That is, at a position where the seat portion is low, even if the back portion is tilted backward, the seat portion is not tilted backward much. Thereby, even when the back portion is tilted backward, a person sitting on the seat can easily stand up and perform an easy posture.
Furthermore, in a state where the seat is raised and the back is tilted backward, the seat is tilted rearward and safe so that the person sitting does not slide forward from the seat.

図1は、本発明に係る電動昇降椅子の実施の一形態を示す斜視図であり、図2はその断面側面図である。なお、図1においては、座部1のうちクッション部材である座部本体17と、背部2のうちクッション部材である背部本体19と、肘掛け部21とは二点鎖線で示し、または、一部省略している。
図3と図4と図5は、電動昇降椅子の断面側面図であり、図3は、座部1が低位置にあって背部2を後傾させた状態、図4は、座部1が中位置にあって背部2を後傾させた状態、図5は、座部1が上方位置にあって背部2を後傾させた状態を示す。
FIG. 1 is a perspective view showing an embodiment of an electric lift chair according to the present invention, and FIG. 2 is a sectional side view thereof. In FIG. 1, the seat body 17 that is the cushion member of the seat portion 1, the back body 19 that is the cushion member of the back portion 2, and the armrest portion 21 are indicated by a two-dot chain line, or a part thereof Omitted.
3, 4, and 5 are cross-sectional side views of the electric lift chair. FIG. 3 shows a state in which the seat portion 1 is in a low position and the back portion 2 is tilted backward, and FIG. FIG. 5 shows a state in which the back part 2 is tilted backward in the middle position, and FIG. 5 shows a state in which the seat part 1 is in the upper position and the back part 2 is tilted backward.

この電動昇降椅子は、座部1と背部2とを有する昇降部3が昇降自在なものであり、床載置枠22と、床載置枠22から立設状となる左右一対のガイドレール4,4と、を備え、昇降部3がガイドレール4,4に沿って昇降するものである。
後に具体的構成を説明するが、座部1は後方下傾可能とされ、背部2は後傾(リクライニング)可能とされている。また、肘掛け部21は、座部1の上方位置の左右両側に配設されている。
This electric lift chair is such that a lift part 3 having a seat part 1 and a back part 2 can be lifted and lowered, and a floor mounting frame 22 and a pair of left and right guide rails 4 standing from the floor mounting frame 22. , 4, and the elevating part 3 moves up and down along the guide rails 4, 4.
Although a specific configuration will be described later, the seat portion 1 can be tilted backward and the back portion 2 can be tilted backward (reclining). Further, the armrest portions 21 are disposed on both the left and right sides of the upper position of the seat portion 1.

図1と図2により、電動昇降椅子についてさらに説明すると、床面に設置される床載置枠22は、左右一対の前後方向を長手方向とする脚23,23と、これらを連結する連結部材24と、を有し、脚23の後端部に車輪が取り付けられている。
床載置枠22の両側部において、後方傾斜状に立ち上がる固定レール部材6が夫々配設され、さらに、固定レール部材6の側方外方側に支持板25が固定され、支持板25に、第1水平軸心C1 廻りに揺動可能となる傾動レール部材7の下部が枢着されている。
The electric lift chair will be further described with reference to FIGS. 1 and 2. A floor mounting frame 22 installed on the floor is composed of a pair of left and right legs 23 and 23 having a longitudinal direction as a longitudinal direction, and a connecting member for connecting them. 24, and a wheel is attached to the rear end of the leg 23.
On both sides of the floor mounting frame 22, fixed rail members 6 rising in a rearwardly inclined manner are respectively disposed. Further, a support plate 25 is fixed to the lateral outer side of the fixed rail member 6. A lower portion of the tilting rail member 7 that can swing around the first horizontal axis C 1 is pivotally attached.

固定レール部材6と傾動レール部材7とは、同一直線状となることが可能であると共に、傾動レール部材7のみが第1水平軸心C1 廻りに後方へ揺動することが可能となる。そして、下部の固定レール部材6と上部の傾動可能な傾動レール部材7とにより、ガイドレール4を構成する。また、左右の傾動レール部材7,7の上端部同志は水平状の連結杆26にて連結され、連結杆26は椅子の移動用のハンドル(握り部)として用いられる。 The fixed rail member 6 and the tilt rail member 7 can be in the same straight line, and only the tilt rail member 7 can swing backward about the first horizontal axis C 1 . The guide rail 4 is constituted by the lower fixed rail member 6 and the upper tiltable tilting rail member 7. The upper end portions of the left and right tilt rail members 7 and 7 are connected by a horizontal connecting rod 26, and the connecting rod 26 is used as a handle (grip portion) for moving the chair.

床載置枠22が有する連結部材24の左右方向中間部には支持部材28が立設され、また、左右夫々の傾動レール部材7の後面部には板状の取付片部27が取着され、左右の取付片部27,27はその上部において水平状の第1の連結取付部材29にて連結されている。そして、支持部材28と連結取付部材29の中間部との間に、傾動レール部材7を電動にて第1水平軸心C1 廻りに揺動させる傾動用アクチュエータ11が配設されている。 A support member 28 is erected on the intermediate portion in the left-right direction of the connecting member 24 included in the floor-mounting frame 22, and a plate-like mounting piece portion 27 is attached to the rear surface portion of the left and right tilt rail members 7. The left and right mounting pieces 27 are connected at the upper portion thereof by a horizontal first connecting mounting member 29. Then, between the support member 28 and the intermediate portion of the connecting mounting member 29, the tilting actuator 11 to swing to the first horizontal axis C 1 around the tilting rail member 7 by the electric it is arranged.

傾動用アクチュエータ11は、図2に示すように、端部に駆動部(モータ)を有するガイド支柱30と、ガイド支柱30に沿って移動する移動ユニット31と、を有し、ガイド支柱30の上端部が連結取付部材29に枢着され、移動ユニット31が支持部材28と枢着されている。
ガイド支柱30は内部に長手方向に沿って雄ネジ杆を有し、移動ユニット31はその雄ネジ杆に螺合する雌ネジ部材を有し、駆動部により雄ネジ杆が回転して移動ユニット31がガイド支柱30に沿って位置変化(移動)する(図3参照)。
As shown in FIG. 2, the tilting actuator 11 includes a guide column 30 having a drive unit (motor) at an end thereof, and a moving unit 31 that moves along the guide column 30. The portion is pivotally attached to the connecting attachment member 29, and the moving unit 31 is pivotally attached to the support member 28.
The guide column 30 has a male screw rod inside along the longitudinal direction, and the moving unit 31 has a female screw member that is screwed into the male screw rod. Changes (moves) along the guide column 30 (see FIG. 3).

従って、この動作により、傾動レール部材7が床載置枠22に対して後傾可能となる。さらに、傾動レール部材7を有するガイドレール4には、ベース部材8がガイドされており、ベース部材8に取着される背部2が傾動レール部材7の後傾動作に応じて後傾する。   Therefore, by this operation, the tilting rail member 7 can be tilted backward with respect to the floor mounting frame 22. Further, a base member 8 is guided by the guide rail 4 having the tilting rail member 7, and the back portion 2 attached to the base member 8 tilts backward according to the backward tilting operation of the tilting rail member 7.

ガイドレール4に沿って昇降する昇降部3は、座部1と背部2と肘掛け部21とこれらを取着するベース部材8とを有して成る。ベース部材8は背部2側の(背部2に対面状となって背部2を取り付ける)主ベース部材9と、主ベース部材9の下部と枢結される座部1側の(座部1を固定する)副ベース部材10とを有する。
主ベース部材9の下部と副ベース部材10の上部とは、第2水平軸心C2 を軸心として枢着されている。
The elevating part 3 that moves up and down along the guide rail 4 includes a seat part 1, a back part 2, an armrest part 21, and a base member 8 for attaching them. The base member 8 has a main base member 9 on the back portion 2 side (facing the back portion 2 so that the back portion 2 is attached), and a seat portion 1 side pivoted to the lower portion of the main base member 9 (the seat portion 1 is fixed). And a secondary base member 10.
The lower part of the main base member 9 and the upper part of the sub base member 10 are pivotally mounted with the second horizontal axis C 2 as the axis.

主ベース部材9は、左右両側の側板部材38,38と、これらを連結する連結水平部材37とを有する。さらに、側板部材38,38夫々において、上下一対の主ローラ32,32と上下一対の副ローラ33,33が取着されており、これらがガイドレール4の凹溝内を移動することで、主ベース部材9をスムーズに昇降させると共に前後方向と左右方向の揺れを防いでいる。
また、副ベース部材10は、左右両側の側板部材39,39を有し、側板部材39,39夫々の下部においてローラ13,13が取着されており、ガイドレール4の凹溝内を移動する。
The main base member 9 has side plate members 38 on both the left and right sides, and a connecting horizontal member 37 that connects them. Further, a pair of upper and lower main rollers 32 and 32 and a pair of upper and lower sub-rollers 33 and 33 are attached to the side plate members 38 and 38, respectively. The base member 9 is raised and lowered smoothly, and shaking in the front-rear direction and the left-right direction is prevented.
Further, the sub base member 10 has side plate members 39, 39 on both the left and right sides, and rollers 13, 13 are attached to the lower portions of the side plate members 39, 39, and move in the concave grooves of the guide rail 4. .

主ベース部材9は、昇降用アクチュエータ12によりガイドレール4に沿って昇降自在とされており、昇降用アクチュエータ12は次のように構成されている。
まず、左右の傾動レール部材7,7の後面部に取着された取付片部27,27の下部は、第2の連結取付部材34にて連結されている。
そして、昇降用アクチュエータ12は、図1と図2に示すように、端部に駆動部(モータ)を有するガイド支柱35と、ガイド支柱35に沿って移動する移動ユニット36と、を有し、ガイド支柱35の下端部が第2の連結取付部材34に枢着され、移動ユニット36がベース部材8の連結水平部材37に枢着されている。
The main base member 9 can be moved up and down along the guide rail 4 by an elevating actuator 12, and the elevating actuator 12 is configured as follows.
First, the lower portions of the attachment pieces 27 and 27 attached to the rear surface portions of the left and right tilt rail members 7 and 7 are connected by the second connection attachment member 34.
As shown in FIGS. 1 and 2, the lifting / lowering actuator 12 has a guide column 35 having a drive unit (motor) at an end thereof, and a moving unit 36 that moves along the guide column 35, The lower end portion of the guide column 35 is pivotally attached to the second connecting attachment member 34, and the moving unit 36 is pivotally attached to the connecting horizontal member 37 of the base member 8.

さらに、ガイド支柱35は内部に長手方向に沿って雄ネジ杆を有し、移動ユニット36はその雄ネジ杆に螺合する雌ネジ部材を有し、駆動部により雄ネジ杆が回転して移動ユニット36がガイド支柱35に沿って位置変化(移動)する。
従って、移動ユニット36の昇降動作により、主ベース部材9はガイドレール4に対して昇降可能となる。さらに、主ベース部材9の下部において枢結された副ベース部材10が連れられて、副ベース部材10が同時に昇降可能となり、主ベース部材9と副ベース部材10とに取着させた座部1と背部2とが昇降することとなる。
Furthermore, the guide column 35 has a male screw rod along the longitudinal direction inside, and the moving unit 36 has a female screw member that is screwed to the male screw rod, and the male screw rod rotates by the drive unit and moves. The position of the unit 36 changes (moves) along the guide column 35.
Therefore, the main base member 9 can be raised and lowered with respect to the guide rail 4 by the raising and lowering operation of the moving unit 36. Further, the sub-base member 10 pivoted at the lower part of the main base member 9 is brought together so that the sub-base member 10 can be moved up and down at the same time, and the seat portion 1 attached to the main base member 9 and the sub-base member 10. And the back part 2 are moved up and down.

次に、座部1と背部2のベース部材8への取り付けについて説明すると、座部1の座部フレーム18は副ベース部材10の側板部材39と固定されている。
背部2においては、背部2の背部フレーム20に設けた取付アーム片40と、副ベース部材10(側板部材39)の上部前方部とが第3水平軸心C3 廻りに枢着されており、また、背部2の背部フレーム20がリンクアーム16を介して主ベース部材9(側板部材38)に取り付けられている。なお、リンクアーム16と、背部フレーム20及び主ベース部材9との取り付けは、夫々、第4水平軸心C4 及び第5水平軸心C5 廻りに揺動可能となるようされている。
Next, the attachment of the seat portion 1 and the back portion 2 to the base member 8 will be described. The seat portion frame 18 of the seat portion 1 is fixed to the side plate member 39 of the sub base member 10.
In back 2, a mounting arm piece 40 provided on the back frame 20 of the back 2, the upper front portion of the sub-base member 10 (the side plate member 39) is pivotally connected to the third horizontal axis C 3 around, Further, the back frame 20 of the back portion 2 is attached to the main base member 9 (side plate member 38) via the link arm 16. The attachment of the link arm 16 to the back frame 20 and the main base member 9 can be swung around the fourth horizontal axis C 4 and the fifth horizontal axis C 5 , respectively.

つまり、背部2と主ベース部材9とは夫々下部において副ベース部材10の上部と揺動可能に枢着されており、また、背部2と主ベース部材9とは中間部においてリンクアーム16にて連結されている。従って、第2水平軸心C2 と第3水平軸心C3 と第4水平軸心C4 と第5水平軸心C5 との4節を揺動軸心とする平行リンク機構14が構成されていると言える。これにより、副ベース部材10上における揺動中心位置が異なる背部2と主ベース部材9とは、夫々揺動可能となり、かつ、相互は平行状態を保って起立し又は後傾動作する。 That is, the back part 2 and the main base member 9 are pivotally attached to the upper part of the sub-base member 10 at the lower part, respectively, and the back part 2 and the main base member 9 are connected by the link arm 16 at the intermediate part. It is connected. Accordingly, the parallel link mechanism 14 having the four pivotal axes of the second horizontal axis C 2 , the third horizontal axis C 3 , the fourth horizontal axis C 4 and the fifth horizontal axis C 5 is constituted. It can be said that. Accordingly, the back portion 2 and the main base member 9 having different swing center positions on the sub base member 10 can swing, and stand up or tilt backward while maintaining a parallel state.

次に、この電動昇降椅子の動作について説明すると、この椅子は座部1及び背部2を昇降させると共に、座部1を後方下傾可能とし背部2を後傾可能とさせる昇降後傾機構5を備える。
昇降後傾機構5は、具体的には、傾動レール部材7を傾動させる傾動用アクチュエータ11と、ベース部材8をガイドレール4に沿って昇降させる昇降用アクチュエータ12と、を備える。さらに、床載置枠22に立設させた固定レール部材6と、傾動用アクチュエータ11の動作により固定レール部材6に対して折れ曲がり状となる傾動レール部材7と、を備える。
Next, the operation of the electric lift chair will be described. The chair raises and lowers the seat 1 and the back 2, and the lift / reverse tilt mechanism 5 that allows the seat 1 to be tilted backward and the back 2 to be tilted backward. Prepare.
Specifically, the post-elevating and tilting mechanism 5 includes a tilting actuator 11 that tilts the tilting rail member 7 and an elevating actuator 12 that raises and lowers the base member 8 along the guide rail 4. Furthermore, a fixed rail member 6 erected on the floor mounting frame 22 and a tilt rail member 7 which is bent with respect to the fixed rail member 6 by the operation of the tilt actuator 11 are provided.

また、この昇降後傾機構5は、図2と図3に示すように、座部1が床面近くの低位置では背部2の後傾角度に関わらず座部1を略水平状とさせる。つまり、図3に示すように、座部1が低位置では、背部2の後傾角度を任意の角度θ1 としても、座部1はほとんど後方下傾せず水平状のままである(座部1の後方下傾角度α=0〜3°)。なお、背部2と座部1の角度は、水平線を基準線としている。
低位置とは、図2に示すように、座部1を最低位置に降下させた位置であり、副ベース部材10(のローラ13)が固定レール部材6の下部位置にガイドされ、かつ、主ベース部材9(の主ローラ32,32及び副ローラ33,33)が傾動レール部材7にガイドされた状態である。
Further, as shown in FIGS. 2 and 3, the up-and-down tilt mechanism 5 makes the seat 1 substantially horizontal regardless of the back-tilt angle of the back 2 when the seat 1 is at a low position near the floor. That is, as shown in FIG. 3, when the seat portion 1 is at a low position, the seat portion 1 is hardly tilted backward and remains horizontal even if the rearward tilt angle of the back portion 2 is an arbitrary angle θ 1 (seat The downward tilt angle α = 0 to 3 ° of the part 1). In addition, the angle of the back part 2 and the seat part 1 makes the horizontal line the reference line.
As shown in FIG. 2, the low position is a position where the seat portion 1 is lowered to the lowest position, the sub base member 10 (the roller 13 thereof) is guided to the lower position of the fixed rail member 6, and The base member 9 (the main rollers 32 and 32 and the sub rollers 33 and 33) are guided by the tilting rail member 7.

そして、この状態において、傾動用アクチュエータ11を作動させると、図3と図6の要部断面側面図に示すように、傾動レール部材7が第1水平軸心C1 を軸心として後方へ傾動する。これにより、固定レール部材6にガイドされる副ベース部材10は略そのままの状態(姿勢)とされ、傾動レール部材7にてガイドされる主ベース部材9が後方へ傾き、主ベース部材9にリンクアーム16を介して取り付けられた背部2が後傾する。そして、背部2と座部1との後傾角度は異なることとなる。 In this state, when the tilting actuator 11 is operated, the tilting rail member 7 tilts backward with the first horizontal axis C 1 as the axis as shown in the cross-sectional side view of the main part in FIGS. To do. As a result, the sub base member 10 guided by the fixed rail member 6 is in a substantially unchanged state (posture), and the main base member 9 guided by the tilting rail member 7 is tilted rearward and linked to the main base member 9. The back 2 attached via the arm 16 tilts backward. And the back inclination angle of the back part 2 and the seat part 1 will differ.

つまり、この状態では、傾動レール部材7の揺動中心である第1水平軸心C1 と、主ベース部材9と副ベース部材10との枢着点である第2水平軸心C2 とが、側面視において、略同一直線上に(近接した位置に)存在するため、傾動レール部材7の傾動は、主ベース部材9を介して副ベース部材10にその動作の影響を与えず、副ベース部材10をそのままの状態とし、主ベース部材9を傾動させることとなる。 That is, in this state, the first horizontal axis C 1 that is the swing center of the tilting rail member 7 and the second horizontal axis C 2 that is the pivot point between the main base member 9 and the sub base member 10 are provided. In the side view, it exists on the substantially same straight line (at a close position), so that the tilting of the tilting rail member 7 does not affect the operation of the sub base member 10 via the main base member 9, and the sub base The member 10 is left as it is, and the main base member 9 is tilted.

さらに、昇降後傾機構5は、座部1が低位置よりも上方の中位置(図4の状態)では背部2の後傾角度よりも小さい角度にて座部1を後方下傾させる。つまり、図4に示すように、座部1が中位置では、背部2の後傾角度を任意の角度θ2 (=θ1 )とすると、座部1は角度θ2 よりも小さい角度βにて後方下傾する。
なお、この中位置とは、座部1が最低位置よりも上方の位置であるが、副ベース部材10(のローラ13)が固定レール部材6の中間高さ位置乃至上部位置にガイドされ、かつ、主ベース部材9(の主ローラ32,32及び副ローラ33,33)が傾動レール部材7にガイドされた状態である。また、座部1の最大後方下傾角度βは5〜10°程度である。
Further, the lifting / lowering tilt mechanism 5 tilts the seat part 1 backward and downward at an angle smaller than the rear tilt angle of the back part 2 when the seat part 1 is in the middle position above the low position (state of FIG. 4). That is, as shown in FIG. 4, when the seat portion 1 is in the middle position, if the rearward tilt angle of the back portion 2 is an arbitrary angle θ 2 (= θ 1 ), the seat portion 1 has an angle β smaller than the angle θ 2. And tilt backwards.
The intermediate position is a position where the seat portion 1 is above the lowest position, but the sub-base member 10 (the roller 13) is guided to an intermediate height position or an upper position of the fixed rail member 6, and The main base member 9 (the main rollers 32 and 32 and the sub rollers 33 and 33) are guided by the tilting rail member 7. Further, the maximum rearward downward inclination angle β of the seat portion 1 is about 5 to 10 °.

そして、座部1が中位置の状態で、傾動用アクチュエータ11を作動させると、図7の要部断面側面図に示すように、傾動レール部材7が第1水平軸心C1 を軸心として後方へ傾動する。これにより、傾動レール部材7にてガイドされる主ベース部材9が傾き、主ベース部材9にリンクアーム16を介して取り付けられた背部2が後傾する。 Then, in the state of the middle position is the seat 1, when actuating the tilt actuator 11, as shown in fragmentary cross-sectional side view of FIG. 7, the tilting rail member 7 as axis the first horizontal axis C 1 Tilt backwards. Thereby, the main base member 9 guided by the tilting rail member 7 is tilted, and the back portion 2 attached to the main base member 9 via the link arm 16 is tilted backward.

さらに説明すると、主ベース部材9の傾きに連れられ、主ベース部材9に第2水平軸心C2 を枢着点として枢結された副ベース部材10が、固定レール部材6にガイドされたままローラ13の軸心である第6水平軸心C6 を揺動中心として後方へ傾動し、かつ、背部2の後傾に連れられ、背部2と第3水平軸心C3 を枢着点として枢結された副ベース部材10が、第6水平軸心C6 を揺動中心として後方へ揺動する。 More specifically, as the main base member 9 is tilted, the sub base member 10 pivotally connected to the main base member 9 with the second horizontal axis C 2 as a pivot point remains guided by the fixed rail member 6. It tilts backward with the sixth horizontal axis C 6 , which is the axis of the roller 13, as the pivot center, and is moved backward by the back part 2, with the back part 2 and the third horizontal axis C 3 as pivot points. The pivoted sub-base member 10 swings backward with the sixth horizontal axis C 6 as the swing center.

つまり、副ベース部材10は、傾動レール部材7の揺動軸心(第1水平軸心C1 )と異なる軸心(第6水平軸心C6 )廻りに揺動し、副ベース部材10は、第1水平軸心C1 を中心とした場合の揺動半径よりも大きな揺動半径にて揺動するため、副ベース部材10は、傾動レール部材7よりも小さい角度にて後傾し、背部2と座部1との後傾角度が異なることとなる。 That is, the sub base member 10 swings around an axis (sixth horizontal axis C 6 ) different from the swing axis (first horizontal axis C 1 ) of the tilting rail member 7. The sub-base member 10 tilts backward at an angle smaller than that of the tilting rail member 7 because the sub-base member 10 swings at a swing radius larger than the swing radius when the first horizontal axis C 1 is the center. The back tilt angle between the back portion 2 and the seat portion 1 will be different.

さらに、昇降後傾機構5は、座部1が中位置よりもさらに上方の上方位置(図5の状態)では、背部2の後傾角度と同じ角度にて座部1を後方下傾させるよう構成されている。 つまり、図5に示すように、座部1が上方位置では、背部の後傾角度を任意の角度θ3 (=θ2 )とすると、座部1も角度θ3 と同じ角度γにて後方下傾する。
なお、この上方位置とは、主ベース部材9(の主ローラ32,32及び副ローラ33,33)及び副ベース部材10(のローラ13)の両者が、傾動レール部材7にガイドされた状態(図5の状態)である。
Further, the up-and-down tilt mechanism 5 tilts the seat 1 backward and downward at the same angle as the back tilt angle of the back portion 2 when the seat 1 is in an upper position (a state shown in FIG. 5) further above the middle position. It is configured. That is, as shown in FIG. 5, when the seat portion 1 is in the upper position, if the rearward tilt angle of the back portion is an arbitrary angle θ 3 (= θ 2 ), the seat portion 1 is also rearward at the same angle γ as the angle θ 3. Tilt down.
The upper position means a state in which both the main base member 9 (the main rollers 32 and 32 and the sub rollers 33 and 33) and the sub base member 10 (the rollers 13) are guided by the tilting rail member 7 ( (State of FIG. 5).

そして、この状態において、傾動用アクチュエータ11を作動させると、図8の要部断面側面図に示すように、傾動レール部材7が第1水平軸心C1 を軸心として後方へ傾動する。これにより、傾動レール部材7にてガイドされる主ベース部材9と副ベース部材10とが同じ角度にて傾き、主ベース部材9と副ベース部材10とに取り付けられた座部1と背部2とが同じ角度にて後傾する。 In this state, when operating the tilt actuator 11, as shown in fragmentary cross-sectional side view of FIG. 8, the tilting rail member 7 is tilted rearward to the first horizontal axis C 1 as the axis. Thereby, the main base member 9 and the sub base member 10 guided by the tilting rail member 7 are inclined at the same angle, and the seat portion 1 and the back portion 2 attached to the main base member 9 and the sub base member 10 are provided. Tilt backwards at the same angle.

さらに、図示省略するが、昇降後傾機構5は、上記上方位置よりもさらに上方の位置である高位置まで座部1を上昇させることができる。なお、上方位置から高位置までは、安全のため、座部1と背部2とを後傾させないよう(電気的に)制御してもよい。   Further, although not shown in the drawings, the up-and-down tilt mechanism 5 can raise the seat 1 to a high position that is a position further above the above-described upper position. In addition, from the upper position to the high position, for safety, the seat portion 1 and the back portion 2 may be controlled not to tilt backward (electrically).

また、本発明の電動昇降椅子は、背部2が、背部2(背部本体19)の下端部2aを通過する水平軸心a(第3水平軸心C3 )を揺動中心として、座部1が取り付けられる部材(副ベース部材10)の一部(前方上部)に枢着されている。
具体的には、背部フレーム20の下部から、取付アーム片40の取付部を背部本体19の下端部まで延伸させ、その取付部において副ベース部材10と水平軸心a廻りに枢結させている。
従って、座部1の低位置(図6)及び中位置(図7)において、背部2が後傾しても背部2の下端部2aと座部1の後端部1aとの間隔(隙間E)が、大きく広がるのを防止する。
In the electric lift chair of the present invention, the seat portion 1 has the back portion 2 centered on the horizontal axis a (third horizontal axis C 3 ) passing through the lower end portion 2a of the back portion 2 (back portion main body 19). Is pivotally attached to a part (front upper part) of a member (sub-base member 10) to which is attached.
Specifically, the attachment portion of the attachment arm piece 40 is extended from the lower portion of the back frame 20 to the lower end portion of the back portion main body 19, and is pivotally connected to the auxiliary base member 10 and the horizontal axis a around the attachment portion. .
Therefore, in the low position (FIG. 6) and the middle position (FIG. 7) of the seat part 1, even if the back part 2 tilts backward, the distance (gap E) between the lower end part 2a of the back part 2 and the rear end part 1a of the seat part 1 ) Is prevented from spreading greatly.

また、本発明の電動昇降椅子の昇降後傾機構5は、ガイドレール4に沿って移動する副ベース部材10のローラ13が、固定レール部材6と傾動レール部材7との遷移区間を移動する際、傾動レール部材7の傾動を電気的に抑止させる傾動制御手段15を有している。
固定レール部材6と傾動レール部材7との遷移区間とは、固定レール部材6の上端面と傾動レール部材7の下端面との間の隙間部と、隙間部から傾動レール部材7に沿って所定寸法だけ上方に採った位置までの上余裕部と、隙間部から固定レール部材6に沿って所定寸法だけ下方に採った位置までの下余裕部と、を含む。
Further, in the tilting mechanism 5 of the electric lift chair according to the present invention, the roller 13 of the sub base member 10 that moves along the guide rail 4 moves in the transition section between the fixed rail member 6 and the tilt rail member 7. Further, tilt control means 15 for electrically suppressing tilting of the tilting rail member 7 is provided.
The transition section between the fixed rail member 6 and the tilt rail member 7 is a predetermined distance along the tilt rail member 7 from the gap between the upper end surface of the fixed rail member 6 and the lower end surface of the tilt rail member 7. The upper margin part to the position taken upward by the dimension and the lower margin part from the gap part to the position taken downward by the predetermined dimension along the fixed rail member 6 are included.

つまり、傾動レール部材7の傾動により、傾動レール部材7が固定レール部材6に対して折れ曲がり状となって大きな隙間ができるため、ローラ13が固定レール部材6と傾動レール部材7との間及びその近傍位置に存在すると、ローラ13が脱輪してしまう。そこで、本発明では、その区間にローラ13が存在すると、傾動レール部材7を傾動させないよう制御している。
さらに、傾動制御手段15は、傾動レール部材7が後傾した状態のまま昇降部3が降下(上昇)してその区間に到達すると、傾動レール部材7を固定レール部材6と直線状となる起立状態にしないと、それ以上、昇降部3を降下(上昇)させることができないよう構成してもよい。
That is, since the tilting rail member 7 is bent with respect to the fixed rail member 6 by the tilting of the tilting rail member 7, a large gap is formed, so that the roller 13 is interposed between the fixed rail member 6 and the tilting rail member 7 and its If it exists in the vicinity, the roller 13 will be removed. Therefore, in the present invention, when the roller 13 exists in the section, the tilting rail member 7 is controlled not to tilt.
Further, the tilting control means 15 raises the tilting rail member 7 linearly with the fixed rail member 6 when the elevating part 3 descends (rises) while reaching the section while the tilting rail member 7 is tilted backward. If it is not in a state, you may comprise so that the raising / lowering part 3 cannot be lowered | hung down (raised) any more.

傾動制御手段15の具体的な構成について説明すると、傾動制御手段15は、傾動レール部材7の取付片部27に固定されたスイッチ(リミットスイッチ)41と、主ベース部材9に上下所定間隔をもって取り付けられスイッチ41に当接する平面レール状の上当接部材42と下当接部材43と、傾動用アクチュエータ11の動作を制御する制御回路部(図示省略)と、有している。
そして、制御回路部は、スイッチ41が上当接部材42又は下当接部材43に当接している(スイッチ41が作動した)状態で傾動用アクチュエータ11を作動可能とし、非接触の状態で作動不可能となるよう電気的に制御している。つまり、上記上下所定間隔が、ローラ13が遷移区間を移動している区間に対応する。
The specific configuration of the tilt control means 15 will be described. The tilt control means 15 is attached to the main base member 9 with a switch (limit switch) 41 fixed to the mounting piece 27 of the tilt rail member 7 and at a predetermined vertical distance. The upper contact member 42 and the lower contact member 43 that are in contact with the switch 41 and a control circuit unit (not shown) for controlling the operation of the tilting actuator 11 are provided.
The control circuit unit enables the tilting actuator 11 to operate when the switch 41 is in contact with the upper contact member 42 or the lower contact member 43 (the switch 41 is operated), and does not operate when the switch 41 is not in contact. It is electrically controlled to make it possible. That is, the predetermined vertical interval corresponds to a section in which the roller 13 is moving in the transition section.

また、昇降用アクチュエータ12の上限及び下限の停止制御は、昇降部3とガイドレール4との間に当接子と上限及び下限用の位置検出器(リミットスイッチ)を設けてもよいが、昇降用アクチュエータ12自体が有する位置検出器により行ってもよい。
さらに、傾動用アクチュエータ11の最大後傾及び起立の停止制御は、例えば床載置枠22(支持板25)と傾動レール部材7との間に当接子と最大後傾用及び起立用の位置検出器(リミットスイッチ)を設けてもよいが、傾動用アクチュエータ11自体が有する位置検出器により行ってもよい。
Further, the upper and lower limit stop control of the lifting actuator 12 may be provided with a contact and an upper limit and lower limit position detector (limit switch) between the lifting unit 3 and the guide rail 4. Alternatively, the position detector included in the actuator 12 may be used.
Further, the maximum backward tilting and standing stop control of the tilting actuator 11 is performed, for example, by the contact between the floor mounting frame 22 (support plate 25) and the tilting rail member 7, and the maximum backward tilting and standing positions. Although a detector (limit switch) may be provided, it may be performed by a position detector included in the tilting actuator 11 itself.

また、図1と図2に示すように、座部フレーム18の下面部には揺動フレーム44が枢着されており、昇降部3が下降する際、又は、座部1を後方下傾から水平状に復帰させる際、座部1の下方に物や座っている人の足が存在すると、その物や足に揺動フレーム44が接触し、揺動フレーム44が上方へ揺動して座部フレーム18に設けたリミットスイッチ45を作動させ、昇降用アクチュエータ12、傾動用アクチュエータ11の作動を緊急停止させることができる。   Further, as shown in FIGS. 1 and 2, a swing frame 44 is pivotally attached to the lower surface portion of the seat frame 18, and when the elevating unit 3 is lowered or when the seat unit 1 is tilted backward and downward. When returning to the horizontal state, if there is an object or a leg of a person sitting under the seat 1, the swing frame 44 comes into contact with the object or the foot, and the swing frame 44 swings upward. By actuating the limit switch 45 provided on the part frame 18, the operations of the lifting actuator 12 and the tilting actuator 11 can be urgently stopped.

以上のように、本発明によれば、後方下傾可能な座部1と後傾可能な背部2とを有する昇降部3が昇降自在な電動昇降椅子に於て、座部1が床面近くの低位置では背部2の後傾角度に関わらず座部1を略水平状とし、かつ、座部1が低位置よりも上方の中位置では背部2の後傾角度よりも小さい角度にて座部1を後方下傾させ、かつ、座部1が中位置よりもさらに上方の上方位置では背部2の後傾角度と同じ角度にて座部1を後方下傾させる昇降後傾機構5を備えるため、座部1の高さに応じて、背部2を後傾させた際の座部1の後方下傾角度を変化させることができ、使用しやすい電動昇降椅子が得られる。   As described above, according to the present invention, in the electric lift chair that can move up and down with the lift section 3 having the seat section 1 that can tilt backward and the back section 2 that can tilt backward, the seat section 1 is close to the floor surface. The seat portion 1 is substantially horizontal regardless of the back tilt angle of the back portion 2 at the low position, and the seat portion 1 is seated at an angle smaller than the back tilt angle of the back portion 2 at the middle position above the low position. An elevating / lowering tilt mechanism 5 that tilts the rear part 1 backward and tilts the seat part 1 backward and backward at the same angle as the rearward tilt angle of the back part 2 when the seat part 1 is further upward than the middle position is provided. Therefore, according to the height of the seat part 1, the back downward inclination angle of the seat part 1 when the back part 2 is tilted backward can be changed, and an electric lift chair that is easy to use can be obtained.

つまり、座部1が低い位置で背部2を大きく後傾させても座部1を大きく後方下傾させない。これにより、背部2が後傾した状態からでも座部1に座った人が立ち上がり動作等しやすく、また、楽な姿勢がとれる。
さらに、座部1を上昇させ背部2を後傾させた状態では、座った人が座部1から前方へすべり落ちないよう座部1を後方下傾させ、安全である。
In other words, even if the back portion 2 is largely tilted backward at the position where the seat portion 1 is low, the seat portion 1 is not largely tilted rearward and downward. Thereby, even when the back portion 2 is tilted backward, a person sitting on the seat portion 1 can easily stand up and perform a comfortable posture.
Further, in a state where the seat portion 1 is raised and the back portion 2 is tilted backward, the seat portion 1 is tilted rearward and safe so that a person sitting does not slide forward from the seat portion 1.

また、背部2は、背部2の下端部2aを通過する水平軸心aを揺動中心として、座部1が取り付けられる部材の一部に枢着され、座部1の上記低位置及び上記中位置において、背部2が後傾しても背部2の下端部2aと座部1の後端部1aとの間隔が大きく広がるのを防止したため、座ったまま背部2を後傾・起立させても座った人の腰に負担をかけることがなく、自然な姿勢のままリクライニングできる。   The back portion 2 is pivotally attached to a part of a member to which the seat portion 1 is attached, with the horizontal axis a passing through the lower end portion 2a of the back portion 2 as a swing center, and the lower position and the middle portion of the seat portion 1 are attached. In this position, even if the back portion 2 is tilted backward, the gap between the lower end portion 2a of the back portion 2 and the rear end portion 1a of the seat portion 1 is prevented from widening greatly. You can recline in a natural posture without placing a burden on the waist of the person sitting.

また、昇降部3は、下部の固定レール部材6と上部の傾動可能な傾動レール部材7とを有するガイドレール4に沿って昇降すると共に座部1及び背部2を取着するベース部材8を備え、ベース部材8は背部2側の主ベース部材9と主ベース部材9の下部と枢結される座部1側の副ベース部材10とを有し、昇降後傾機構5は、主ベース部材9及び副ベース部材10の両者が傾動レール部材7にガイドされた状態で傾動レール部材7を傾動させて背部2と座部1とを同じ角度にて後傾させ、また、主ベース部材9が傾動レール部材7にガイドされかつ副ベース部材10が固定レール部材6にガイドされた状態で傾動レール部材7を傾動させて背部2と座部1との後傾角度を異ならせるよう構成されているため、座部1の高さに応じて、背部2を後傾させた際の座部1の後方下傾角度を変化させることができ、使用しやすい電動昇降椅子が得られる。   The elevating unit 3 includes a base member 8 that moves up and down along a guide rail 4 having a lower fixed rail member 6 and an upper tiltable tilting rail member 7 and attaches the seat portion 1 and the back portion 2. The base member 8 has a main base member 9 on the back portion 2 side and a sub-base member 10 on the seat portion 1 side that is pivotally connected to a lower portion of the main base member 9. And the sub base member 10 are guided by the tilt rail member 7, the tilt rail member 7 is tilted to tilt the back portion 2 and the seat portion 1 backward at the same angle, and the main base member 9 tilts. Since the tilting rail member 7 is tilted while being guided by the rail member 7 and the sub-base member 10 is guided by the fixed rail member 6, the back tilt angle of the back portion 2 and the seat portion 1 is made different. Depending on the height of the seat part 1, tilt the back part 2 backward Seat 1 can be changed to the rear lower inclination angle when, using easy electric lift chair is obtained.

また、副ベース部材10の上部において揺動可能に下部が枢着された背部2と主ベース部材9とは、リンクアーム16にて中間部が連結されて、平行リンク機構14を構成するため、副ベース部材10における背部2と主ベース部材9の揺動中心位置が異なっていても、背部2をスムーズに後傾させることができる。
また、背部2に作用する荷重を、リンクアーム16を介して適切に主ベース部材9、ガイドレール4へ伝達させることができ、安全である。
Further, since the back part 2 and the main base member 9 pivotably attached to the lower part of the upper part of the sub-base member 10 are connected to each other at the link arm 16 to form a parallel link mechanism 14. Even if the back portion 2 and the main base member 9 in the sub-base member 10 have different swing center positions, the back portion 2 can be smoothly tilted backward.
Further, the load acting on the back portion 2 can be appropriately transmitted to the main base member 9 and the guide rail 4 via the link arm 16, which is safe.

また、昇降後傾機構5は、傾動レール部材7を傾動させる傾動用アクチュエータ11と、ベース部材8を昇降させる昇降用アクチュエータ12と、を備えたものであるため、任意の高さで背部2を後傾させることができる。   Moreover, since the raising / lowering tilting mechanism 5 includes the tilting actuator 11 for tilting the tilting rail member 7 and the lifting / lowering actuator 12 for raising / lowering the base member 8, the back part 2 can be moved at an arbitrary height. Can be tilted backwards.

また、昇降後傾機構5は、ガイドレール4に沿って移動する副ベース部材10のローラ13が固定レール部材6と傾動レール部材7との遷移区間を移動する際、傾動レール部材7の傾動を電気的に抑止させる傾動制御手段15を有するため、副ベース部材10がガイドレール4から脱落することが決してなく、安全な電動昇降椅子とすることができる。   Further, the tilting mechanism 5 after raising and lowering tilts the tilting rail member 7 when the roller 13 of the sub base member 10 moving along the guide rail 4 moves in the transition section between the fixed rail member 6 and the tilting rail member 7. Since the tilt control means 15 for electrically deterring is provided, the sub base member 10 never falls off the guide rail 4 and can be a safe electric lift chair.

本発明の電動昇降椅子の実施の一形態を示す斜視図である。It is a perspective view which shows one Embodiment of the electric lifting chair of this invention. 電動昇降椅子の断面側面図である。It is a cross-sectional side view of an electric lifting chair. 座部が低位置にあって背部を後傾させた状態を示す断面側面図である。It is a section side view showing the state where the seat part was in the low position and the back part was tilted backward. 座部が中位置にあって背部を後傾させた状態を示す断面側面図である。It is a section side view showing the state where the seat part was in the middle position and the back part was tilted backward. 座部が上方位置にあって背部を後傾させた状態を示す断面側面図である。It is a cross-sectional side view which shows the state which the seat part exists in the upper position and made the back part incline backward. 図3の要部を示す側面図である。It is a side view which shows the principal part of FIG. 図4の要部を示す側面図である。It is a side view which shows the principal part of FIG. 図5の要部を示す側面図である。It is a side view which shows the principal part of FIG.

符号の説明Explanation of symbols

1 座部
1a 後端部
2 背部
2a 下端部
3 昇降部
4 ガイドレール
5 昇降後傾機構
6 固定レール部材
7 傾動レール部材
8 ベース部材
9 主ベース部材
10 副ベース部材
11 傾動用アクチュエータ
12 昇降用アクチュエータ
13 ローラ
14 平行リンク機構
15 傾動制御手段
16 リンクアーム
DESCRIPTION OF SYMBOLS 1 Seat part 1a Rear end part 2 Back part 2a Lower end part 3 Lifting part 4 Guide rail 5 Lifting / lowering tilting mechanism 6 Fixed rail member 7 Tilt rail member 8 Base member 9 Main base member
10 Secondary base material
11 Actuator for tilting
12 Lifting actuator
13 Laura
14 Parallel link mechanism
15 Tilt control means
16 Link arm

Claims (6)

後方下傾可能な座部(1)と後傾可能な背部(2)とを有する昇降部(3)が昇降自在な電動昇降椅子に於て、上記座部(1)が床面近くの低位置では上記背部(2)の後傾角度に関わらず該座部(1)を略水平状とし、かつ、上記座部(1)が上記低位置よりも上方の中位置では上記背部(2)の後傾角度よりも小さい角度にて該座部(1)を後方下傾させ、かつ、上記座部(1)が中位置よりもさらに上方の上方位置では上記背部(2)の後傾角度と同じ角度にて該座部(1)を後方下傾させる昇降後傾機構(5)を備えることを特徴とする電動昇降椅子。   In an electric lift chair that can be lifted and lowered by a lift (3) having a seat (1) that can be tilted backward and a back (2) that can be tilted backward, the seat (1) is low near the floor. Regardless of the back tilt angle of the back portion (2), the seat portion (1) is substantially horizontal, and the seat portion (1) is in the middle position above the low position. The seat portion (1) is tilted backward and downward at an angle smaller than the rear tilt angle, and the back portion (2) is tilted backward when the seat portion (1) is in an upper position further above the middle position. An electric lifting chair comprising a lifting / lowering tilting mechanism (5) for tilting the seat (1) backward and downward at the same angle. 上記背部(2)は、該背部(2)の下端部(2a)を通過する水平軸心(a)を揺動中心として、上記座部(1)が取り付けられる部材の一部に枢着され、該座部(1)の上記低位置及び上記中位置において、該背部(2)が後傾しても該背部(2)の上記下端部(2a)と該座部(1)の後端部(1a)との間隔が大きく広がるのを防止した請求項1記載の電動昇降椅子。   The back portion (2) is pivotally attached to a part of a member to which the seat portion (1) is attached, with a horizontal axis (a) passing through a lower end portion (2a) of the back portion (2) as a swing center. The lower end (2a) of the back portion (2) and the rear end of the seat portion (1) even when the back portion (2) tilts backward at the low position and the middle position of the seat portion (1). The electric lifting chair according to claim 1, wherein the distance from the portion (1 a) is prevented from widening. 上記昇降部(3)は、下部の固定レール部材(6)と上部の傾動可能な傾動レール部材(7)とを有するガイドレール(4)に沿って昇降すると共に上記座部(1)及び上記背部(2)を取着するベース部材(8)を備え、該ベース部材(8)は上記背部(2)側の主ベース部材(9)と該主ベース部材(9)の下部と枢結される上記座部(1)側の副ベース部材(10)とを有し、上記昇降後傾機構(5)は、該主ベース部材(9)及び該副ベース部材(10)の両者が上記傾動レール部材(7)にガイドされた状態で該傾動レール部材(7)を傾動させて該背部(2)と該座部(1)とを同じ角度にて後傾させ、また、該主ベース部材(9)が上記傾動レール部材(7)にガイドされかつ該副ベース部材(10)が上記固定レール部材(6)にガイドされた状態で該傾動レール部材(7)を傾動させて該背部(2)と該座部(1)との後傾角度を異ならせるよう構成されている請求項1又は2記載の電動昇降椅子。   The elevating part (3) elevates and lowers along a guide rail (4) having a lower fixed rail member (6) and an upper tiltable tilting rail member (7), and the seat (1) and the above A base member (8) for attaching the back portion (2) is provided, and the base member (8) is pivotally connected to a main base member (9) on the back portion (2) side and a lower portion of the main base member (9). The sub-base member (10) on the side of the seat (1), and the tilting mechanism (5) is a tilting mechanism for both the main base member (9) and the sub-base member (10). The tilting rail member (7) is tilted while being guided by the rail member (7) to tilt the back portion (2) and the seat portion (1) backward at the same angle, and the main base member (9) is guided by the tilting rail member (7) and the sub-base member (10) is guided to the fixed rail member (6). 3. The electric lift according to claim 1 or 2, wherein the tilting rail member (7) is tilted in a closed state so that the back tilt angle of the back portion (2) and the seat portion (1) is different. Chair. 上記副ベース部材(10)の上部において揺動可能に下部が枢着された上記背部(2)と上記主ベース部材(9)とは、リンクアーム(16)にて中間部が連結されて、平行リンク機構(14)を構成する請求項3記載の電動昇降椅子。   The back portion (2) and the main base member (9) pivotably attached to the lower portion of the upper portion of the sub-base member (10) are connected to each other by a link arm (16), The electric lift chair according to claim 3, constituting a parallel link mechanism (14). 上記昇降後傾機構(5)は、上記傾動レール部材(7)を傾動させる傾動用アクチュエータ(11)と、上記ベース部材(8)を昇降させる昇降用アクチュエータ(12)と、を備えた請求項3又は4記載の電動昇降椅子。   The raising / lowering tilting mechanism (5) includes a tilting actuator (11) for tilting the tilting rail member (7), and a lifting actuator (12) for lifting and lowering the base member (8). The electric lifting chair according to 3 or 4. 上記昇降後傾機構(5)は、上記ガイドレール(4)に沿って移動する上記副ベース部材(10)のローラ(13)が上記固定レール部材(6)と上記傾動レール部材(7)との遷移区間を移動する際、上記傾動レール部材(7)の傾動を電気的に抑止させる傾動制御手段(15)を有する請求項3,4又は5記載の電動昇降椅子。   The raising / lowering tilt mechanism (5) includes a roller (13) of the sub-base member (10) that moves along the guide rail (4), and the fixed rail member (6), the tilt rail member (7), and the like. The electric lift chair according to claim 3, 4 or 5, further comprising a tilt control means (15) for electrically suppressing tilting of the tilting rail member (7) when moving in the transition section.
JP2003335360A 2003-09-26 2003-09-26 Electric lifting chair Pending JP2005095490A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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ID=34462756

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007148432A1 (en) 2006-06-21 2007-12-27 Mitsui Chemicals, Inc. Polymerizable composition, resin using the same, optical component and compound
WO2008102545A1 (en) 2007-02-20 2008-08-28 Mitsui Chemicals, Inc. Metal thietane compound, polymerizable composition comprising the compound, resin, and use of the resin
WO2009087717A1 (en) 2008-01-10 2009-07-16 Mitsui Chemicals, Inc. Additive for polymerizable composition, polymerizable composition containing the same, and use of the polymerizable composition
CN103120613A (en) * 2013-01-31 2013-05-29 宁波康福特健身器械有限公司 Improved massage chair

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007148432A1 (en) 2006-06-21 2007-12-27 Mitsui Chemicals, Inc. Polymerizable composition, resin using the same, optical component and compound
WO2008102545A1 (en) 2007-02-20 2008-08-28 Mitsui Chemicals, Inc. Metal thietane compound, polymerizable composition comprising the compound, resin, and use of the resin
WO2009087717A1 (en) 2008-01-10 2009-07-16 Mitsui Chemicals, Inc. Additive for polymerizable composition, polymerizable composition containing the same, and use of the polymerizable composition
CN103120613A (en) * 2013-01-31 2013-05-29 宁波康福特健身器械有限公司 Improved massage chair

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