JP4843809B2 - IV chair - Google Patents

IV chair Download PDF

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JP4843809B2
JP4843809B2 JP2005318676A JP2005318676A JP4843809B2 JP 4843809 B2 JP4843809 B2 JP 4843809B2 JP 2005318676 A JP2005318676 A JP 2005318676A JP 2005318676 A JP2005318676 A JP 2005318676A JP 4843809 B2 JP4843809 B2 JP 4843809B2
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armrest
posture
chair
backrest
patient
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JP2007125117A (en
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秀一郎 田畑
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Kokuyo Co Ltd
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Description

本発明は、病院等において好適に使用される点滴用椅子に関するものである。   The present invention relates to an infusion chair suitably used in a hospital or the like.

従来より、通常の椅子とは仕様の異なる点滴用の椅子が各種考えられている。点滴用椅子は、通常の椅子と比較して、少なくとも背凭れ部と座部とを備えた椅子本体が、患者が着座可能な着座姿勢と、患者が仰向けで横たわることが可能なベッド姿勢との間で姿勢変更する機能が要求されるとともに、注射針が刺さる対象である肘を置く肘掛け部が必須の要件となる。   Conventionally, various infusion chairs having different specifications from normal chairs have been considered. Compared to a normal chair, an infusion chair has a seating posture in which a chair body having at least a backrest and a seating portion can be seated and a bed posture in which the patient can lie on his back. A function of changing the posture between the two is required, and an armrest portion on which an elbow, which is a target to be pierced by an injection needle, is placed is an essential requirement.

このようなニーズに応え得る点滴用椅子として、例えば下記特許文献に示す椅子が挙げられる。具体的には、椅子本体の背凭れ部を、前記着座姿勢の場合に取り得る起立位置と前記ベッド姿勢の場合に取り得る傾倒位置との間で回動可能なものとする一方、肘掛け部を、前方へ略水平に延びる使用位置と、上方へ略垂直に延びる退避位置との間で回動可能なものとしている（例えば特許文献１参照）。この点滴用椅子は、患者が点滴を受ける場合、肘掛け部が、椅子本体の姿勢（着座姿勢又はベッド姿勢）に関係なく、使用位置に位置付けられたままである。つまり、椅子本体を着座姿勢とベッド姿勢との間で姿勢変更した場合であっても座部に対する肘掛け部の高さ位置は変わらないものである。
実公平３―３４１７９号公報（図１及び図３等参照） As an infusion chair that can meet such needs, for example, chairs shown in the following patent documents can be cited. Specifically, the backrest part of the chair body is rotatable between a standing position that can be taken in the sitting position and a tilting position that can be taken in the bed position, while the armrest part is It is assumed that it can rotate between a use position extending substantially horizontally forward and a retreat position extending substantially vertically upward (see, for example, Patent Document 1). In this drip chair, when the patient receives drip, the armrest portion remains positioned at the use position regardless of the chair body posture (sitting posture or bed posture). That is, even when the posture of the chair body is changed between the sitting posture and the bed posture, the height position of the armrest portion relative to the seat portion does not change.
Japanese Utility Model Publication No. 3-34179 (see FIGS. 1 and 3)

ところで、前述した以外に点滴用椅子として要求される重要な点は、点滴を受ける患者が肘掛け部に肘を載せ置いた状態で、椅子本体を着座姿勢とベッド姿勢との間で適宜姿勢変更した場合、その姿勢変更の前後において患者に無理な姿勢又は違和感を感じるような姿勢を強要するものであってはならないという点である。   By the way, in addition to the above, an important point required as an infusion chair is that the patient who receives the infusion changes the posture of the chair body properly between the sitting posture and the bed posture with the elbow placed on the armrest. In this case, the patient should not be forced to take an unreasonable posture or an uncomfortable posture before and after the posture change.

しかしながら、前記特許文献に示す椅子は、上述した通り、椅子本体を着座姿勢とベッド姿勢との間で姿勢変更した場合であっても肘掛け部の高さ位置は変わらないものであるため、患者が着座姿勢にある椅子本体に着座して肘掛け部に肘を置いた状態で、椅子本体を、背凭れ部を所定角度後傾させたベッド姿勢に姿勢変更した場合、高さ位置が変わらない肘掛け部に肘を置いたまま患者の上半身だけが後傾し、肘を含む腕全体が腕以外の身体に対して患者が違和感を感じる高い位置に位置付けられ、患者にとっては、通常の仰向けに横たわる姿勢とは異なる無理な姿勢を強要されるものである。   However, as described above, the chair shown in the above-mentioned patent document does not change the height position of the armrest even when the chair body is changed between the sitting posture and the bed posture. When the chair body is seated in a sitting position and the elbow is placed on the armrest, and the chair body is changed to a bed posture with the backrest tilted back by a predetermined angle, the armrest does not change in height. The patient's upper body is tilted backwards while the elbow is placed on the arm, and the entire arm including the elbow is positioned at a high position where the patient feels uncomfortable with the body other than the arm. Is forced to have a different and unreasonable attitude.

このような不具合は、そもそも、肘を含む腕と腕以外の身体との違和感の感じない良好な相対位置関係が、患者が着座した場合と仰向けに横たわった場合とでは異なることに起因するものと思われる。   In the first place, such a malfunction is due to the fact that the good relative positional relationship between the arm including the elbow and the body other than the arm does not feel uncomfortable is different between when the patient is seated and when lying on his back. Seem.

本発明は、このような課題に着目してなされたものであって、主たる目的は、椅子本体を着座姿勢とベッド姿勢との間で姿勢変更した場合であっても肘を肘掛け部に違和感なく自然な状態で置くことができる点滴用椅子を提供することにある。   The present invention has been made paying attention to such problems, and its main purpose is to make the elbows rest on the armrests even when the chair body is changed between the sitting posture and the bed posture. The object is to provide an infusion chair that can be placed in a natural condition.

すなわち、本発明の点滴用椅子は、少なくとも背凭れ部及び座部を備え、患者が着座可能な着座姿勢と、患者が仰向けに横たわることが可能なベッド姿勢との間で姿勢変更可能な椅子本体と、肘を載せ置くことが可能な肘掛け部とを具備した点滴用椅子であって、前

記肘掛け部の一端部を前記背凭れ部に支持させるとともに、他端部を、前記椅子本体の姿勢変更に応じて当該肘掛け部と前記座部との相対高さ位置を調整する高さ調整機構に支持させ、さらに前記肘掛け部が、患者が腕を置いた際にその長手方向に沿って腕の形状に略相応して窪み得るようにしたものであることを特徴とする。 That is, the infusion chair of the present invention includes at least a backrest portion and a seat portion, and the chair main body can be changed between a sitting posture in which a patient can sit and a bed posture in which the patient can lie on his / her back. And an infusion chair comprising an armrest on which an elbow can be placed,

A height adjustment mechanism that supports one end of the armrest on the backrest and adjusts the relative height of the other end to the seat according to a change in the posture of the chair body. Further, the armrest portion is characterized in that when the patient puts the arm, the armrest portion can be depressed along the longitudinal direction thereof substantially corresponding to the shape of the arm .

このようなものであれば、肘掛け部が椅子本体の姿勢変更に伴い、背凭れ部の傾倒動作又は起立動作に追従して動くとともに、高さ調整機構により肘掛け部と座部との相対高さ位置を変更させることができ、従来のように、椅子本体の姿勢変更に関係なく所定の高さ位置に固定された肘掛け部を備えた椅子と比較して、患者が肘を含む腕を、着座又は横たわった状態の何れにおいても違和感がなく自然な状態で肘掛け部に載せ置くことが可能であり、患者が肘掛け部に肘を載せ置いた状態で、椅子本体を着座姿勢とベッド姿勢との間で適宜姿勢変更した場合、その姿勢変更前後又は姿勢変更中に患者に無理な姿勢又は違和感を感じるような姿勢を強要することがない。
さらに、前記肘掛け部が、患者が腕を置いた際に肘掛け部の長手方向に沿って腕の形状に略相応して窪み得るようにしたものであるので、肘掛け部に腕を置いた際に患者が良好なホールド感を得ることができるとともに、腕に係る負担を軽減することができ、点滴用椅子としてより実用性のあるものとなる。 If this is the case, the armrest moves following the tilting or standing movement of the backrest as the chair body changes, and the height adjustment mechanism adjusts the relative height between the armrest and the seat. Compared to a chair with an armrest that is fixed at a predetermined height regardless of the posture change of the chair body, the patient can sit on the arm including the elbow It is possible to place the chair body between the sitting position and the bed position with the patient resting on the armrest in a natural state with no sense of incongruity in any of the lying or lying states. When the posture is changed as appropriate, there is no need to force the patient to feel uncomfortable or uncomfortable before, during or after the posture change.
Furthermore, when the arm rests on the armrest portion, the armrest portion can be depressed substantially corresponding to the shape of the arm along the longitudinal direction of the armrest portion when the patient places the arm. The patient can obtain a good hold feeling and can reduce the burden on the arm, which is more practical as an infusion chair.

特に、前記高さ調整機構が、前記椅子本体の姿勢変更に伴う前記背凭れ部の傾倒動作又は起立動作に連動した前記肘掛け部の前後方向への移動を許容するものであれば、高さ調整機構によって肘掛け部の円滑な前後方向への移動を実現するとともに、背凭れ部の動作に連動した肘掛け部の前後方向への移動を許容する別途専用の機構を設ける必要がなく、構造の簡略化を図ることができる。   In particular, if the height adjustment mechanism allows the movement of the armrest portion in the front-rear direction in conjunction with the tilting operation or the standing-up operation of the backrest accompanying the posture change of the chair body, the height adjustment is performed. The mechanism allows smooth movement of the armrest in the front-rear direction, and there is no need to provide a separate dedicated mechanism that allows the armrest to move in the front-rear direction in conjunction with the movement of the backrest, simplifying the structure Can be achieved.

また、高さ調整機構の安定した動作を実現するには、高さ調整機構を、床面に接地させた脚体と前記肘掛け部との間に介在させていることが望ましい。   Further, in order to realize a stable operation of the height adjusting mechanism, it is desirable that the height adjusting mechanism is interposed between the leg grounded on the floor surface and the armrest portion.

具体的な実施態様としては、前記高さ調整機構が、上端部を前記肘掛け部の下面部に枢着し且つ下端部を前記脚体の上面部に枢着した単一の連結部材により構成したものであることが挙げられる。   As a specific embodiment, the height adjusting mechanism is configured by a single connecting member having an upper end portion pivotally attached to the lower surface portion of the armrest portion and a lower end portion pivotally attached to the upper surface portion of the leg body. It is mentioned that it is a thing.

以上説明したように本発明によれば、肘掛け部が、椅子本体の姿勢変更に応じて、背凭れ部の後傾動作又は起立動作に追従して動くとともに、高さ調整機構により座部との相対高さ位置を変更させることができ、従来のように、椅子本体の姿勢変更に関係なく一定の高さ位置に固定された肘掛け部を備えた椅子と比較して、患者が肘を含む腕を、着座又は横たわった状態の何れにおいても違和感がなく自然な状態で肘掛け部に載せ置くことが可能であり、点滴治療を受ける患者にとって無理な姿勢又は違和感を感じるような姿勢を強いられることがなく、好適である。   As described above, according to the present invention, the armrest portion moves following the back-tilting operation or the standing-up operation of the backrest portion according to the posture change of the chair body, and the height adjustment mechanism Compared to a chair with an armrest that can be changed in relative height position and is fixed at a fixed height position regardless of the posture change of the chair body as in the past, the patient's arm including the elbow Can be placed on the armrest in a natural state without any discomfort in either sitting or lying down, and can be forced into a posture that feels uncomfortable or uncomfortable for patients undergoing infusion therapy. Not preferred.

以下、本発明の一実施形態を、図面を参照して説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態に係る点滴用椅子Ｃは、図１に示すように、左右一対の脚体１と、脚体１に所定のリンク機構Ｌを介して支持される椅子本体２と、左右一対の肘掛け部３とを備えたものである。   As shown in FIG. 1, an infusion chair C according to the present embodiment includes a pair of left and right legs 1, a chair body 2 supported by the legs 1 via a predetermined link mechanism L, and a pair of left and right armrests. The unit 3 is provided.

脚体１は、略水平方向に延びる下面部１ａにアジャスタ１１を設け、上面部１ｂを前方に向かって漸次斜め上方に傾斜させた側面視異形四角形状をなすものである。   The leg body 1 is provided with an adjuster 11 on a lower surface portion 1a extending in a substantially horizontal direction, and has an irregular quadrangular shape in a side view in which the upper surface portion 1b is inclined obliquely upward toward the front.

椅子本体２は、主として腕以外の上半身を支持する背凭れ部２１と、主として臀部及び大腿部を支持する座部２２と、主として膝裏及びふくらはぎを支持するレッグレスト部２３とを備え、これら各部（背凭れ部２１、座部２２、レッグレスト部２３）を共通のリンク機構Ｌを作動させることにより、患者が着座可能な着座姿勢（２ｘ）と、患者が仰向けに横たわることが可能なベッド姿勢（２ｙ）との間で姿勢変更するものである。   The chair body 2 includes a backrest portion 21 that mainly supports the upper body other than the arms, a seat portion 22 that mainly supports the buttocks and thighs, and a legrest portion 23 that mainly supports the back of the knee and the calf. By activating a common link mechanism L for each part (backrest part 21, seat part 22, legrest part 23), a bed in which the patient can sit and a bed on which the patient can lie on his back The posture is changed between the posture (2y).

具体的に、背凭れ部２１は、下半部側を上半部側に対して前方に向かって側面視略弓形に膨出させてなる背凭れ部本体２１１と、背凭れ部本体２１１の上端部に設けたヘッドレスト部２１２とを縫合等により一体的に備えたものである。   Specifically, the backrest 21 includes a backrest main body 211 formed by bulging the lower half side forward in a side view substantially in the shape of a bow with respect to the upper half side, and the upper end of the backrest main body 211. The headrest part 212 provided in the part is integrally provided by sewing or the like.

座部２２は、略フラット状の上面部２２ａを有し、椅子本体２を着座姿勢（２ｘ）にした場合に、前端部が後端部よりも相対的に高い位置に位置付けられるものである。   The seat portion 22 has a substantially flat upper surface portion 22a, and when the chair body 2 is in the sitting posture (2x), the front end portion is positioned at a position relatively higher than the rear end portion.

レッグレスト部２３は、椅子本体２をベッド姿勢（２ｙ）にした場合に、患者のふくらはぎを支持するレッグレスト部本体２３１と、患者の膝裏を支持する膝置き部２３２とを備えたものである。   The leg rest part 23 is provided with a leg rest part main body 231 that supports the patient's calf and a knee rest part 232 that supports the patient's back when the chair body 2 is in the bed posture (2y). is there.

そして、図１及び図２に示すように、椅子本体２が着座姿勢（２ｘ）にある場合、背凭れ部２１は起立位置に位置付けられ、且つレッグレスト部２３は、レッグレスト部本体２３１と膝置き部２３２とをそれぞれ起立姿勢の状態で前後方向に重合させ、この状態におけるレッグレスト部本体２３１の前面部が座部２２の前端部と略同一又は若干奥方（後方）に位置付けられるように設定してある。このような椅子本体２を着座姿勢（２ｘ）からベッド姿勢（２ｙ）へ姿勢変更する場合、図２〜図５に示すように、その過程において、背凭れ部２１が漸次前方にスライド移動しながら後傾して傾倒位置に位置付けられるとともに、座部２２がその前端部を後端部よりも相対的に高い位置に位置付けた状態で上昇しながら前方へ移動し、さらに、レッグレスト部本体２３１及び膝置き部２３２がそれぞれ起立姿勢から傾倒姿勢へ姿勢変更しながら前方へ移動する。なお、これら各部（背凭れ部２１、座部２２、レッグレスト部２３）の移動は前記共通のリンク機構Ｌ及びこのリンク機構Ｌを駆動させる図示しない駆動部によって実現される。これらリンク機構Ｌ及び駆動部は周知のものを適用しているため、詳細な説明は省略する。   As shown in FIGS. 1 and 2, when the chair body 2 is in the sitting posture (2x), the backrest portion 21 is positioned in the standing position, and the legrest portion 23 is connected to the legrest portion body 231 and the knee. The placing portion 232 is superposed in the front-rear direction in a standing posture, and the front portion of the leg rest portion main body 231 in this state is set to be positioned substantially the same as or slightly behind (the rear) the front end portion of the seat portion 22. It is. When changing the posture of the chair body 2 from the sitting posture (2x) to the bed posture (2y), as shown in FIGS. 2 to 5, the backrest portion 21 gradually slides forward in the process. The seat 22 is tilted backward and positioned at the tilted position, and the seat 22 moves forward while the front end thereof is positioned at a position relatively higher than the rear end. Further, the legrest main body 231 and The knee holders 232 move forward while changing their postures from the standing posture to the tilting posture. The movement of these parts (backrest part 21, seat part 22, legrest part 23) is realized by the common link mechanism L and a drive part (not shown) that drives the link mechanism L. Since the link mechanism L and the drive unit are well known, detailed description thereof is omitted.

しかして、肘掛け部３は、上面部３ａをフラット状にした前後方向に延びるものである。この肘掛け部３は、患者が腕を置いた際にその長手方向に沿って腕の形状に略相応して窪み得るようにしたものである。具体的には、例えば図６（同図は肘掛け部３の横断面を模式的に示す図である）に示すように、肘掛け部３の長手方向に沿った中央部位に配する第１クッション３Ｃａの厚み寸法を、長手方向に沿った両側縁部に配する一対の第２クッション３Ｃｂの厚み寸法よりも小さく設定し、これらクッション３Ｃａ、３Ｃｂを一枚の表面材３Ｈによって表面に皺が生じないように被覆することにより、第１クッション３Ｃａと、表面材３Ｈとの間に空洞３Ｓを形成している。このような構成を採用したため、患者が肘掛け部３に腕を置いた際に前記空洞３Ｓにより肘掛け部３がその長手方向に沿って腕をホールドするように窪み得る。なお、他の実施例として、第１クッション３Ｃａ、第２クッション３Ｃｂの高さ寸法を略同一に設定し、第１クッション３Ｃａの弾性反発力を第２クッション３Ｃｂの弾性反発力よりも弱く設定した態様が挙げられる。なお、この場合も、第１クッション３Ｃａ、第２クッション３Ｃｂを表面材３Ｈで被覆していることはいうまでもない。そして、この肘掛け部３の一端部を背凭れ部２１に支持させるとともに、他端部を、椅子本体２の姿勢変更に応じて肘掛け部３と座部２２との相対高さ位置を調整する高さ調整機構Ｈに支持させている。具体的には、肘掛け部３の下面部３ｂに、肘掛け部３の長手寸法よりも若干小さい長手寸法を有する薄板状のステー３１をビス止め等により固着し、このステー３１の後端部側に設けた軸部３２を背凭れ部２１に軸着するとともに、ステー３１の前端部側に高さ調整機構Ｈの一端部を軸着している。なお、何れか一方の肘掛け部３（図示例では右側の肘掛け部３）に、駆動部に駆動信号を伝達するためのコントローラＸを保持する保持部３３を設けている（図１参照）。本実施形態では、保持部３３として、一本の線材を側面視略上向き門型状に折曲加工したものを適用し、この保持部３３に、コントローラＸの背面部に設けた引っ掛け部Ｘａを引っ掛けることによりコントローラＸを保持するようにしている。   Thus, the armrest portion 3 extends in the front-rear direction in which the upper surface portion 3a is made flat. The armrest 3 is configured so that when the patient puts an arm, the armrest 3 can be recessed along the longitudinal direction substantially corresponding to the shape of the arm. Specifically, for example, as shown in FIG. 6 (the figure schematically shows a cross section of the armrest portion 3), the first cushion 3 </ b> Ca disposed at the central portion along the longitudinal direction of the armrest portion 3. Is set to be smaller than the thickness dimension of the pair of second cushions 3Cb arranged on both side edges along the longitudinal direction, and the surface of the cushions 3Ca and 3Cb is not wrinkled by one surface material 3H. By covering in this way, a cavity 3S is formed between the first cushion 3Ca and the surface material 3H. Since such a configuration is adopted, when the patient puts his arm on the armrest portion 3, the armrest portion 3 can be depressed by the cavity 3S so as to hold the arm along its longitudinal direction. As another example, the height dimensions of the first cushion 3Ca and the second cushion 3Cb are set to be substantially the same, and the elastic repulsive force of the first cushion 3Ca is set to be weaker than the elastic repulsive force of the second cushion 3Cb. An embodiment is mentioned. In this case, needless to say, the first cushion 3Ca and the second cushion 3Cb are covered with the surface material 3H. And while making the backrest part 21 support the one end part of this armrest part 3, the other end part is the height which adjusts the relative height position of the armrest part 3 and the seat part 22 according to the attitude | position change of the chair main body 2. The height adjusting mechanism H is supported. Specifically, a thin plate-like stay 31 having a longitudinal dimension slightly smaller than the longitudinal dimension of the armrest portion 3 is fixed to the lower surface portion 3b of the armrest portion 3 by screwing or the like, and is attached to the rear end portion side of the stay 31. The provided shaft portion 32 is pivotally attached to the backrest portion 21, and one end portion of the height adjusting mechanism H is pivotally attached to the front end portion side of the stay 31. One of the armrests 3 (the right armrest 3 in the illustrated example) is provided with a holding part 33 that holds a controller X for transmitting a drive signal to the driving part (see FIG. 1). In the present embodiment, as the holding portion 33, a single wire rod bent into a gate shape substantially upward in a side view is applied, and a hook portion Xa provided on the back surface portion of the controller X is provided on the holding portion 33. The controller X is held by hooking.

高さ調整機構Ｈは、前記脚体１と肘掛け部３との間に設けられ、上端部を肘掛け部３の下面部３ｂ（ステー３１）に枢着し且つ下端部を脚体１の上面部１ｂに枢着した単一の連結部材４からなるものである。この連結部材４は、例えば金属素材から形成された略直方体状をなす連結部材本体４１と、連結部材本体４１の上端部及び下端部に設けられ且つ連結部材本体４１に対してそれぞれ軸部４１ａ、４１ｂを介して連結部材本体４１の長手方向に沿った鉛直方向に回動し得る一対の回動部４２、４３とを備えたものである。そして、一方の回動部４２を肘掛け部３の下面部３ｂ（ステー３１）における前端部近傍部位にビス止め等により固定するとともに、他方の回動部４３を脚体１の上面部１ｂにおける前端部側にビス止め等により固定している。   The height adjustment mechanism H is provided between the leg body 1 and the armrest portion 3, and has an upper end portion pivotally attached to the lower surface portion 3 b (stay 31) of the armrest portion 3, and a lower end portion that is an upper surface portion of the leg body 1. It consists of a single connecting member 4 pivotally attached to 1b. The connecting member 4 includes, for example, a connecting member main body 41 having a substantially rectangular parallelepiped shape formed of a metal material, an upper end portion and a lower end portion of the connecting member main body 41, and a shaft portion 41a, A pair of rotating portions 42 and 43 that can rotate in the vertical direction along the longitudinal direction of the connecting member main body 41 via 41b are provided. And while rotating one rotation part 42 to the front end part vicinity site | part in the lower surface part 3b (stay 31) of the armrest part 3, it fixes the other rotation part 43 to the front end in the upper surface part 1b of the leg 1 It is fixed to the part side with screws.

次に、このような構成を有する点滴用椅子Ｃの作用を、特に肘掛け部３及び高さ調整機構Ｈの動きに着目して説明する。   Next, the operation of the drip chair C having such a configuration will be described by focusing on the movement of the armrest portion 3 and the height adjusting mechanism H.

先ず、椅子本体２が図２に示す前記着座姿勢（２ｘ）にある場合、肘掛け部３が床面Ｆに略平行な姿勢で保持され、高さ調整機構Ｈの連結部材４が、その上端部（回動部４２）を下端部（回動部４３）よりも奥方（後方：同図中左側）へ位置付けた後傾姿勢をとる。そして、椅子本体２の着座姿勢（２ｘ）からベッド姿勢（２ｙ）への姿勢変更に応じて、肘掛け部３及び高さ調整機構Ｈは以下のように作動する。   First, when the chair body 2 is in the sitting posture (2x) shown in FIG. 2, the armrest portion 3 is held in a posture substantially parallel to the floor surface F, and the connecting member 4 of the height adjusting mechanism H is the upper end portion thereof. A rearward tilting posture is adopted in which the (turning part 42) is positioned farther (backward: left side in the figure) than the lower end part (turning part 43). And according to the posture change from the sitting posture (2x) of the chair body 2 to the bed posture (2y), the armrest portion 3 and the height adjusting mechanism H operate as follows.

すなわち、背凭れ部２１が前方へスライド移動しながら後傾する動作に追従して、一端部を背凭れ部２１に支持させた肘掛け部３が前方へ移動する。この際、高さ調整機構Ｈの連結部材４が、図３〜図４に示すように軸部４１ｂを支点に回動部４２を背凭れ部２１から離間させ方向（図示例では時計回り）に回動するとともに、回動部４２が軸部４１ａを支点に回動することにより肘掛け部３は水平移動する。そして、図５に示すように椅子本体２を完全にベッド姿勢（２ｙ）に移行させた状態において、高さ調整機構Ｈの連結部材４が、その上端部（回動部４２）を下端部（回動部４３）よりも前方（後方：同図中右側）へ位置付けた前傾姿勢をとり、この高さ調整機構Ｈにより、前方へ水平移動した肘掛け部３と、上昇しながら前方へ移動した座部２２との相対高さ位置、つまり相互の離間距離が、着座姿勢（２ｘ）にある場合の座部２２と肘掛け部３との離間距離よりも小さくなり、仰向けに横たわった状態で肘を自然な姿勢で肘掛け部３に載せ置くことができる。その結果、肘掛け部３に肘を載せ置いた状態で、椅子本体２を着座姿勢（２ｘ）とベッド姿勢（２ｙ）との間で適宜姿勢変更した場合、その姿勢変更の前後又はその姿勢変更中において違和感がなく自然な状態で肘を含む腕を肘掛け部３に載せ置くことができ、点滴治療に適した椅子Ｃとなる。   That is, the armrest portion 3 having one end portion supported by the backrest portion 21 moves forward, following the motion of the backrest portion 21 tilting backward while slidingly moving forward. At this time, the connecting member 4 of the height adjusting mechanism H is moved in a direction (clockwise in the illustrated example) with the rotating portion 42 being separated from the backrest portion 21 with the shaft portion 41b as a fulcrum as shown in FIGS. The armrest portion 3 moves horizontally as the rotation portion 42 rotates about the shaft portion 41a as a fulcrum while rotating. And in the state which made the chair main body 2 transfer to a bed attitude | position (2y) completely, as shown in FIG. 5, the connection member 4 of the height adjustment mechanism H makes the upper end part (rotating part 42) the lower end part ( The forward-tilting posture is positioned forward (backward: right side in the figure) from the rotating portion 43), and by this height adjustment mechanism H, the armrest portion 3 horizontally moved forward and moved forward while ascending. The relative height position with respect to the seat portion 22, that is, the mutual separation distance is smaller than the separation distance between the seat portion 22 and the armrest portion 3 in the seating posture (2x), and the elbow is laid on its back It can be placed on the armrest 3 in a natural posture. As a result, when the posture of the chair body 2 is appropriately changed between the sitting posture (2x) and the bed posture (2y) with the elbow resting on the armrest portion 3, before and after the posture change or during the posture change. The arm including the elbow can be placed on the armrest portion 3 in a natural state without any sense of incompatibility, and the chair C is suitable for the drip treatment.

このように、本実施形態に係る点滴用椅子Ｃは、肘掛け部３の一端部を背凭れ部２１に支持させるとともに、他端部を、椅子本体２の姿勢変更に応じて肘掛け部３と座部２２との相対高さ位置を調整する高さ調整機構Ｈに支持させているため、肘掛け部３が、椅子本体２の姿勢変更に応じて背凭れ部２１の後傾動作又は起立動作に追従して動くとともに、高さ調整機構Ｈにより座部２２との相対高さ位置を変更させることができ、従来のように、椅子本体の姿勢変更に関係なく床面から一定の高さ位置に固定された肘掛け部を備えた椅子と比較して、患者が肘を含む腕を、着座又は横たわった状態の何れにおいても違和感がなく自然な状態で肘掛け部３に載せ置くことが可能であり、患者に無理な姿勢又は違和感を感じるような姿勢を強要することがない。   As described above, the infusion chair C according to the present embodiment allows the backrest portion 21 to support one end portion of the armrest portion 3 and the other end portion of the armrest portion 3 and the seat according to the posture change of the chair body 2. Since the height adjustment mechanism H that adjusts the relative height position with the portion 22 is supported, the armrest portion 3 follows the backward tilting operation or the standing-up operation of the backrest portion 21 according to the posture change of the chair body 2. The height adjustment mechanism H can be used to change the relative height position with the seat portion 22 and is fixed at a fixed height position from the floor regardless of the posture change of the chair body as in the past. Compared with a chair equipped with an armrest portion, the patient can place the arm including the elbow on the armrest portion 3 in a natural state without any discomfort in either the sitting or lying state, Force an uncomfortable or uncomfortable posture That there is no.

特に、高さ調整機構Ｈが、椅子本体２の姿勢変更に伴う背凭れ部２１の傾倒動作又は起立動作に連動した肘掛け部３の前後方向への移動を許容するものであるため、この高さ調整機構Ｈにより、座部２２及び背凭れ部２１に対する肘掛け部３の適切な相対位置を確保することができ、椅子本体２の姿勢変更時における肘掛け部３の円滑な移動を実現することができる。さらに、高さ調整機構Ｈとは別に、椅子本体２の姿勢変更に伴う背凭れ部２１の傾倒動作又は起立動作に連動した肘掛け部３の前後方向への移動を許容する専用の機構を設ける必要がないため、構造の簡略化に資する。   In particular, since the height adjustment mechanism H allows the armrest portion 3 to move in the front-rear direction in conjunction with the tilting operation or the standing-up operation of the backrest portion 21 accompanying the posture change of the chair body 2, this height. The adjustment mechanism H can ensure an appropriate relative position of the armrest portion 3 with respect to the seat portion 22 and the backrest portion 21, and can realize smooth movement of the armrest portion 3 when the posture of the chair body 2 is changed. . In addition to the height adjustment mechanism H, it is necessary to provide a dedicated mechanism that allows the armrest portion 3 to move in the front-rear direction in conjunction with the tilting operation or the standing-up operation of the backrest portion 21 due to the posture change of the chair body 2. This contributes to simplification of the structure.

また、高さ調整機構Ｈを、床面Ｆに接地させた脚体１（いわば静止体）と肘掛け部３（いわば可動体）との間に介在させているため、高さ調整機構Ｈを、可動体と可動体との間に介在させる態様と比較して高さ調整機構Ｈの安定した動作を実現することができる。   Moreover, since the height adjustment mechanism H is interposed between the leg 1 (so-called stationary body) and the armrest 3 (so-called movable body) that are grounded to the floor surface F, the height adjustment mechanism H is Compared with the mode of interposing between the movable body and the movable body, stable operation of the height adjusting mechanism H can be realized.

加えて、高さ調整機構Ｈが、上端部を肘掛け部３の下面部１ａに枢着し且つ下端部を脚体１の上面部１ｂに枢着した単一の連結部材４により構成したものであるため、高さ調整機構Ｈの構造を極めて簡素なものとし、コストの削減を有効に図ることができる。   In addition, the height adjusting mechanism H is configured by a single connecting member 4 having an upper end portion pivotally attached to the lower surface portion 1a of the armrest portion 3 and a lower end portion pivotally attached to the upper surface portion 1b of the leg body 1. Therefore, the structure of the height adjusting mechanism H can be made extremely simple, and the cost can be effectively reduced.

一方、肘掛け部３が、患者が腕を置いた際に肘掛け部３の長手方向に沿って腕の形状に略相応して窪み得るようにしたものであるため、腕が肘掛け部３にフィットして良好なホールド感を患者が得ることができるとともに、肘に係る負担を軽減することができ、点滴用椅子としてより実用性のあるものとなる。   On the other hand, since the armrest portion 3 can be depressed along the longitudinal direction of the armrest portion 3 when the patient puts the arm, the arm fits into the armrest portion 3. Thus, the patient can obtain a good hold feeling and can reduce the burden on the elbow, which is more practical as an infusion chair.

なお、本発明は、以上に詳述した実施形態に限られるものではない。   The present invention is not limited to the embodiment described in detail above.

例えば、前記実施形態では、椅子本体を着座姿勢とベッド姿勢との間で姿勢変更した場合に背凭れ部及び座部がそれぞれ所定の２位置間を移動する態様を例示したが、これに限らず、椅子本体を着座姿勢とベッド姿勢との間で姿勢変更した場合に背凭れ部のみが起立位置及び後傾位置との間で移動するものであってもよい。この場合の高さ調整機構としては、背凭れ部の移動に応じて肘掛け部を座部に対して積極的に上下動させるものが挙げられる。このような高さ調整機構であっても肘掛け部と座部との相対高さ位置を好適に調整することが可能である。   For example, in the above-described embodiment, the backrest portion and the seat portion are each moved between two predetermined positions when the chair body is changed between the sitting posture and the bed posture. When the chair main body is changed in posture between the sitting posture and the bed posture, only the backrest portion may move between the standing position and the rearward tilt position. As the height adjusting mechanism in this case, there is a mechanism that positively moves the armrest portion up and down with respect to the seat portion in accordance with the movement of the backrest portion. Even with such a height adjustment mechanism, it is possible to suitably adjust the relative height position between the armrest and the seat.

また、高さ調整機構として、前記実施形態で示した単一の連結部材を用いたものの他、複数の連結部材（リンク要素）を用いたもの、又は一又は複数のガススプリング等の伸縮部材を用いて構成したもの等であっても構わない。さらに、高さ調整機構を電気的に作動させるようにしてもよい。   Further, as a height adjusting mechanism, a member using a plurality of connecting members (link elements), or a telescopic member such as one or a plurality of gas springs, in addition to the one using the single connecting member shown in the embodiment. It may be configured by using it. Further, the height adjusting mechanism may be electrically operated.

また、肘掛け部のクッション性を高める態様として、肘掛け部の両端部の芯材（クッション）と中央部位の芯材（クッション）との弾性反発力の程度を異ならせたり、各芯材の境界部分を所定角度傾斜させ、境界部分における弾性反発力が漸次変化するようにしてもよい。   In addition, as a mode of enhancing the cushioning properties of the armrest, the degree of elastic repulsion between the core material (cushion) at both ends of the armrest portion and the core material (cushion) at the center portion is different, or the boundary portion of each core material May be inclined at a predetermined angle so that the elastic repulsive force at the boundary portion gradually changes.

その他、各部の具体的構成についても上記実施形態に限られるものではなく、本発明の趣旨を逸脱しない範囲で種々変形が可能である。   In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

本発明の一実施形態に係る点滴用椅子の全体斜視図。The whole perspective view of the drip chair concerning one embodiment of the present invention. 同実施形態に係る点滴用椅子の側面を模式的に示す図。The figure which shows typically the side surface of the drip chair concerning the embodiment. 作用説明図。Action explanatory drawing. 作用説明図。Action explanatory drawing. 作用説明図。Action explanatory drawing. 同実施形態に係る肘掛け部の横断面を模式的に示す図。The figure which shows typically the cross section of the armrest part which concerns on the same embodiment.

符号の説明Explanation of symbols

１…脚体
２…椅子本体
（２ｘ）…着座姿勢
（２ｙ）…ベッド姿勢
２１…背凭れ部
２２…座部
３…肘掛け部
４…連結部材
Ｃ…点滴用椅子
Ｆ…床面
Ｈ…高さ調整機構 DESCRIPTION OF SYMBOLS 1 ... Leg body 2 ... Chair main body (2x) ... Sitting posture (2y) ... Bed posture 21 ... Backrest part 22 ... Seat part 3 ... Armrest part 4 ... Connecting member C ... Infusion chair F ... Floor surface H ... Height Adjustment mechanism

Claims (4)

少なくとも背凭れ部及び座部を備え、患者が着座可能な着座姿勢と、患者が仰向けに横たわることが可能なベッド姿勢との間で姿勢変更可能な椅子本体と、
肘を載せ置くことが可能な肘掛け部とを具備した点滴用椅子であって、
前記肘掛け部の一端部を前記背凭れ部に支持させるとともに、他端部を、前記椅子本体の姿勢変更に応じて当該肘掛け部と前記座部との相対高さ位置を調整する高さ調整機構に支持させ、
さらに前記肘掛け部が、患者が腕を置いた際にその長手方向に沿って腕の形状に略相応して窪み得るようにしたものであることを特徴とする点滴用椅子。 A chair body comprising at least a backrest portion and a seat portion, and a posture changeable between a sitting posture in which the patient can sit and a bed posture in which the patient can lie on his back;
An infusion chair comprising an armrest on which an elbow can be placed;
A height adjustment mechanism that supports one end of the armrest on the backrest and adjusts the relative height of the armrest and the seat according to a change in the posture of the chair body. To support ,
The drip chair is characterized in that the armrest portion can be depressed in accordance with the shape of the arm along the longitudinal direction when the patient puts the arm . 前記高さ調整機構が、前記椅子本体の姿勢変更に伴う前記背凭れ部の傾倒動作又は起立動作に連動した前記肘掛け部の前後方向への移動を許容するものである請求項１記載の点滴用椅子。 2. The drip infusion according to claim 1, wherein the height adjustment mechanism allows the armrest portion to move in the front-rear direction in conjunction with a tilting operation or a standing-up operation of the backrest portion associated with a change in posture of the chair body. Chair. 前記高さ調整機構を、床面に接地させた脚体と前記肘掛け部との間に介在させている請求項１又は２記載の点滴用椅子。 The drip chair according to claim 1 or 2, wherein the height adjusting mechanism is interposed between a leg grounded on a floor and the armrest. 前記高さ調整機構が、上端部を前記肘掛け部の下面部に枢着し且つ下端部を前記脚体の上面部に枢着した単一の連結部材により構成したものである請求項３記載の点滴用椅子。 The height adjusting mechanism is constituted by a single connecting member having an upper end portion pivotally attached to a lower surface portion of the armrest portion and a lower end portion pivotally attached to an upper surface portion of the leg body. Infusion chair.
JP2005318676A 2005-11-01 2005-11-01 IV chair Expired - Fee Related JP4843809B2 (en)

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JP5294478B2 (en) * 2009-05-29 2013-09-18 株式会社モリタ製作所 Dental clinic
CZ201932A3 (en) * 2019-01-21 2020-03-11 BORCAD Medical a.s. Medical chair with adjustable armrests
CN112869964B (en) * 2021-01-04 2023-04-14 郭峰 A bit auxiliary chair for medical treatment paediatrics

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JPS5915344A (en) * 1982-07-19 1984-01-26 Nec Corp Photodetecting device
JP2000107241A (en) * 1998-10-05 2000-04-18 Koito Ind Ltd Chair for drip and artificial dialysis

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