JP3190785U - Baby chair - Google Patents

Abstract

【課題】乳幼児が座り、座板に対して浅座りしても倒れを防止し得るだけではなく、座板への浅座りと併せて踏み板を併設し、浅座り且つ踏み板を用いた場合においても、倒れを防止し得る椅子を提供する。【解決手段】上部の連結部５（肘掛け杆）と、連結部の前後端部から下方に垂下された脚杆３，４とからなる左右の脚部２と、左右の脚部を繋ぎ、座部を支持する支持杆６，７とを備え、座部は、支持杆上に支持される座板９を備え、座板の前縁部９ａは、前部脚杆３の前端部よりも後方に位置するようにした。【選択図】図３PROBLEM TO BE SOLVED: To not only prevent an infant from falling even if he / she sits and sits shallowly with respect to a seat plate, but also when a tread plate is provided together with a shallow seat on the seat plate and the tread plate is used. , Provide a chair that can prevent falling. SOLUTION: The left and right leg portions 2 including an upper connecting portion 5 (armrest rod) and leg rods 3 and 4 hanging downward from the front and rear ends of the connecting portion are connected to each other and a seat is formed. Support rods 6 and 7 for supporting the portion are provided, the seat portion is provided with a seat plate 9 supported on the support rod, and the front edge portion 9a of the seat plate is rearward from the front end portion of the front leg rod 3. I tried to be located in. [Selection diagram] Fig. 3

Description

本考案は、乳幼児が用いるのに好適な椅子に関するものである。   The present invention relates to a chair suitable for use by infants.

椅子は左右の脚部と、左右の脚部間に取り付けられ、支持される座部とからなり、座部は一般的には座板及び背板からなる。
従来の椅子は、座板の前縁部が、脚部（脚杆）の前方に突出して位置し、前後の脚杆を有するものでは前部の脚杆の前方に座板の前縁部が突出して位置している（特許文献１参照）。 The chair is composed of left and right leg portions and a seat portion which is attached and supported between the left and right leg portions, and the seat portion is generally composed of a seat plate and a back plate.
In conventional chairs, the front edge of the seat plate protrudes in front of the leg (leg), and the front edge of the seat plate is located in front of the front leg in the case of having front and rear legs. It protrudes and is located (refer patent document 1).

特許文献１の椅子を図６において側面図として示した。
椅子１００は、図では側面視略逆Ｖ形の脚部１０１を有し、脚部１０１は、前下方に延びる前部脚杆１０２と後下方に延びる後部脚杆１０３と、前後の脚杆１０２，１０３間の上部間を繋ぐ連結部１０４からなる側面視略逆Ｖ形の左右の脚１０５を有する。
座部１０６は、左右の脚１０５，１０５間の上部の連結部１０４間に架設されており、座部１０６は座板１０７と、座板１０７の後部から後傾するように立設された背板１０８とからなる。 The chair of Patent Document 1 is shown as a side view in FIG.
The chair 100 has a leg portion 101 having a substantially inverted V shape in a side view in the figure, and the leg portion 101 includes a front leg rod 102 that extends forward and downward, a rear leg rod 103 that extends rearward and downward, and front and rear leg rods 102. , 103 have left and right legs 105 that are substantially V-shaped in a side view and are formed of a connecting portion 104 that connects the upper portions.
The seat portion 106 is installed between the upper connecting portions 104 between the left and right legs 105, 105. The seat portion 106 is erected so as to tilt backward from the seat plate 107 and the rear portion of the seat plate 107. Plate 108.

以上の従来の椅子は、臀部を支持する座板１０７は、その前縁部１０７ａが、前部脚杆１０２の前端部、図では前部脚杆１０２の上部前縁部分である連結部１０４の前端部１０４ａよりも大きく前方に突出して位置している。
特許文献１の椅子に限られず、従来の椅子は、座板の前縁部が、座板が取り付けられている前部脚杆の前方、或いは脚杆の前方に大きく突出して位置している。 In the conventional chair described above, the seat plate 107 that supports the heel portion has a front edge portion 107 a of the front end portion of the front leg rod 102, which is the upper front edge portion of the front leg rod 102 in the drawing. The front end portion 104a is positioned so as to protrude forward.
The conventional chair is not limited to the chair of Patent Document 1, and the front edge portion of the seat plate is positioned so as to largely protrude in front of the front leg rod to which the seat plate is attached or in front of the leg rod.

上記した従来の椅子に乳幼児が座った場合の課題を図７で示した。
乳幼児１１０は、椅子１００の座板１０７の奥に臀部１１１が位置するように深座りさせても、椅子の上で前後左右に動いたりし、座板１０７上を前方に移動し、往々にして浅座りとなる傾向が多い。
その傾向が過ぎると、ヒップポイントＰが座板１０７の前縁部１０７ａに近づき、前縁部１０７ａが前部脚杆１０２の前縁部１０４ａよりも前方となり、ヒップポイントＰの前方へのオーバーハング量が大きくなる。 The problem when an infant sits on the above-described conventional chair is shown in FIG.
Even if the infant 110 sits deeply so that the buttocks 111 are located behind the seat plate 107 of the chair 100, the infant 110 moves back and forth on the chair and moves forward on the seat plate 107. There is much tendency to sit down.
When the tendency is over, the hip point P approaches the front edge portion 107a of the seat plate 107, the front edge portion 107a is in front of the front edge portion 104a of the front leg pad 102, and the hip point P is overhanging forward. The amount increases.

特に乳幼児用の椅子では、図７に示すように左右の前部脚杆１０２の下部間に踏み板１０９を設けたものが多い。
幼児１１０は、踏み板１０９に足１１２を載せ、足１１２を踏ん張ったりして前方に移動したりし、ヒップポイントＰが前方に移動していることと併せ踏み板１０９に載せた足１１２に体重をかけたりすることが多い。
この結果、図の左回り（反時計方向）に偶力が作用し、矢印ａで示すように椅子１００が前側に倒れる場合がある。
従来の椅子における上記した課題は、特に椅子の使用を開始するようになる１０ヶ月〜１８ヶ月の乳幼児に顕著に顕れる。 In particular, many infant chairs are provided with a foot board 109 between the lower portions of the left and right front leg rods 102 as shown in FIG.
The infant 110 puts the foot 112 on the tread board 109 and moves forward by straddling the foot 112. In addition, the hip point P moves forward, and the weight is applied to the foot 112 placed on the tread board 109. Often.
As a result, the couple acts counterclockwise (counterclockwise) in the figure, and the chair 100 may fall forward as indicated by the arrow a.
The above-described problems in the conventional chairs are particularly apparent in infants aged 10 to 18 months who begin to use the chairs.

意匠登録第１２８９９８６号公報Design Registration No. 1289986

本考案は、従来の乳幼児用の椅子の上記した課題を解決すべくなされたものでる。
本考案は、乳幼児が座り、座板に対して浅座りしたとしても倒れを確実に防止し得る椅子を提供するとともに、踏み板を併設した場合においても、底板に浅座りし、且つ踏み板を踏んで立ち上がりかけた場合等においても、倒れを確実に防止し得る椅子を提供することを目的とする。 The present invention has been made to solve the above-described problems of conventional chairs for infants.
The present invention provides a chair that can surely prevent a fall even if an infant sits down and sits down on a seat board. An object of the present invention is to provide a chair that can surely prevent a fall even when standing up.

上記課題を解決するために、請求項１に係る考案は、乳幼児用の椅子であって、上部の連結部と、該連結部の前後端部から下方に垂下された前後部の脚杆とからなる左右の脚と、左右の脚部を繋ぎ、座部を支持する支持杆とを備え、座部は支持杆上に支持される座板を備え、座板の前縁部は、前部脚杆の前端部よりも後方に位置するようにしたことを特徴とする。   In order to solve the above-mentioned problem, the invention according to claim 1 is a chair for infants, comprising an upper connecting portion and front and rear leg pads suspended downward from the front and rear end portions of the connecting portion. The left and right legs are connected to the left and right legs, and a support rod is provided to support the seat. The seat includes a seat plate supported on the support rod, and the front edge of the seat plate is the front leg. It is characterized by being positioned behind the front end of the bag.

請求項２に係る考案は、請求項１において、前後部の脚杆は、前部脚杆の下部が前方に位置するように前下傾し、後部脚杆の下部が後方に位置するように後下傾し、連結部は、前後部の脚杆の上部間を繋ぐ肘掛け杆であり、左右の脚は側面視略Ａ形であり、座板の前縁部は、前部脚杆よりも後方に位置していることを特徴とする。   The invention according to claim 2 is the invention according to claim 1, wherein the front and rear foot rods are tilted forward and downward so that the lower portion of the front foot rod is positioned forward, and the lower portion of the rear foot rod is positioned rearward. The connecting part is an armrest hook that connects the upper parts of the front and rear legs, the left and right legs are substantially A-shaped in side view, and the front edge of the seat plate is more than the front legs It is located in the back.

請求項３に係る考案は、請求項１又は請求項２において、前部脚杆間であって、座板の下方には、踏み板を設けたことを特徴とする。   The invention according to claim 3 is characterized in that, in claim 1 or claim 2, a tread is provided between the front leg rods and below the seat plate.

請求項４に係る考案は、請求項１〜３の何れか１項において、座板は後部から上方に延出された背板を備えることを特徴とする。   The invention according to claim 4 is characterized in that, in any one of claims 1 to 3, the seat plate includes a back plate extending upward from the rear portion.

請求項５に係る考案は、乳児用の椅子であって、上部の連結部と、連結部の前後端部から下方に垂下された前後部の脚杆とからなる左右の脚と、左右の脚部を繋ぎ、座部を支持する支持杆とを備え、座部は支持杆上に支持される座板と座板は後部から上方に延出された背板を備え、座部の座板の前縁部は、前部脚杆の前端部よりも後方に位置し、前後部の脚杆は、前部脚杆の下部が前方に位置するように前下傾し、後部脚杆の下部が後方に位置するように後下傾し、連結部は、前後部の脚杆の上部間を繋ぐ肘掛け杆であり、左右の脚は側面視略Ａ形であり、座板の前縁部は、前部脚杆よりも後方に位置し、前部脚杆間であって、座板の下方には、踏み板を設けたことを特徴とする。   The invention according to claim 5 is a chair for an infant, comprising left and right legs comprising an upper connecting portion and front and rear leg rods suspended downward from the front and rear end portions of the connecting portion. The seat includes a support plate that supports the seat, the seat includes a seat plate that is supported on the support plate, and the seat plate includes a back plate that extends upward from the rear portion of the seat plate. The front edge is located behind the front end of the front leg, and the front and rear legs are tilted forward and downward so that the lower part of the front leg is located forward, and the lower part of the rear leg is It tilts backward so as to be located rearward, and the connecting part is an armrest that connects the upper parts of the front and rear legs, the left and right legs are substantially A-shaped in side view, and the front edge of the seat plate is It is located behind the front leg rod, and is provided between the front leg rods and below the seat plate.

請求項１に係る考案では、乳幼児用の椅子を、上部の連結部と該連結部の前後端部から下方に垂下された前後部の脚杆とからなる左右の脚と、左右の脚を繋ぎ、座部を支持する支持杆とを備え、座部は支持杆上に支持される座板を備え、座板の前縁部は、前部脚杆の前端部よりも後方に位置するように構成したので、乳幼児が前座りしたとしても、乳幼児のヒップポイントは前部脚杆よりも後方となる。
従って、椅子の座板に前座りしたとしても、前倒れ方向への偶力が作用するのが防止され、座った状態で乳幼児が前方に移動し、座り方が浅座りとなったしても、椅子の前倒れを確実に防止することができる。 According to the first aspect of the present invention, a chair for an infant is connected to the left and right legs, which are composed of an upper connecting portion and front and rear leg rods suspended downward from the front and rear end portions of the connecting portion. And a support rod for supporting the seat portion, the seat portion including a seat plate supported on the support rod, and the front edge portion of the seat plate is located behind the front end portion of the front leg rod. Because it is configured, even if the infant sits forward, the infant's hip point is behind the front legpad.
Therefore, even if you sit down on the seat plate of the chair, even if the couple in the forward tilt direction is prevented from acting, even if the infant moves forward in the sitting state, The chair can be reliably prevented from falling forward.

また、本考案では、乳幼児の浅座り姿勢に左右されることなく、確実に前倒れを防止し得る乳幼児用椅子を、椅子の特別の倒れ防止構造や装置を付随させることなく、座板の前縁部を前部脚杆の後方に位置させるという簡素な構成で実現することができる。   Further, according to the present invention, an infant chair that can surely prevent forward tilting without being influenced by the infant's shallow sitting posture can be installed in front of the seat plate without accompanying a special fall prevention structure or device of the chair. This can be realized with a simple configuration in which the edge portion is positioned behind the front leg rod.

請求項２に係る考案では、請求項１において、前後の脚杆は、前部脚杆が下部が前方に位置するように前下傾し、後部脚杆の下部が後方に位置するように後下傾し、連結部は、前後の脚杆の上部間を繋ぐ肘掛け杆であり、左右の脚は側面視略Ａ形であり、座板の前縁部は、前部脚杆よりも後方に位置しているので、特に前後の脚杆が前下傾、後下傾することで脚杆の踏ん張りが利き、安定した乳幼児用椅子が得られる。
また、座板の前縁部が略Ａ形の脚の前部脚杆よりも後方なので、乳幼児が浅座りしても乳幼児の臀部から大腿部にかけて前部脚杆の上部内側となり、乳幼児の側方への移動を規制し、安定した座りを維持することができる。 In the invention according to claim 2, in claim 1, the front and rear footpads are rearwardly inclined such that the front footpads are tilted forward and downward so that the lower part is positioned forward, and the lower parts of the rear footpads are positioned rearward. The connecting part is an armrest that connects the upper parts of the front and rear legs, the left and right legs are substantially A-shaped in side view, and the front edge of the seat plate is behind the front legs Since it is positioned, the front and rear footpads are tilted forward and rearward, so that the footpads can be stretched and a stable infant chair can be obtained.
In addition, since the front edge of the seat plate is behind the front leg heel of the substantially A-shaped leg, even if the infant sits down, it becomes the upper inner side of the front leg fold from the infant's buttocks to the thigh. The movement to the side can be restricted and stable sitting can be maintained.

請求項３に係る考案では、請求項１又は請求項２において、前部脚杆間であって、座板の下方には踏み板を設けたので、足を踏み板に載せて体重をかけたとしても、座板の前縁部が前部脚杆の前端部よりも後方となり、ヒップポイントは座板の前縁部よりも後方なので、踏み板を備えていたとしても椅子の前倒れを防止することができる。   In the invention according to claim 3, in claim 1 or claim 2, since the foot board is provided between the front leg pads and below the seat board, even if the foot is put on the foot board and the weight is applied Because the front edge of the seat plate is behind the front edge of the front leg and the hip point is behind the front edge of the seat plate, even if it has a footboard, it can prevent the chair from falling forward it can.

請求項４に係る考案では、請求項１〜３の何れか１項において、座板は後部から上方に延出された背板を備えるので、乳幼児が後方の背板で支持され、背中の支持が確実に行える。   According to a fourth aspect of the present invention, in any one of the first to third aspects, since the seat plate includes a back plate extending upward from the rear portion, the infant is supported by the rear back plate, and the back support is provided. Can be done reliably.

請求項５に係る考案では、乳幼児用の椅子は上部の連結部と該連結部の前後端部から下方に垂下された前後の脚杆とからなる左右の脚と、左右の脚を繋ぎ、座部を支持する支持杆とを備え、座部は支持杆上に支持される座板を備え、座板の前縁部は、前部脚杆の前端部よりも後方に位置するように構成した。
これにより、乳幼児が前座りしたとしても、乳幼児のヒップポイントは前部脚杆よりも後方となり、椅子の座板に前座りしたとしても、前倒れ方向への偶力が作用するのが防止され、座った状態で乳幼児が前方に移動し、座り方が浅座りとなったしても、椅子の前倒れを確実に防止することができる。
また座板は、後部から上方に延出された背板を備えるので、乳幼児が後方の背板で支持され、背中の支持を確実に行うことができる。 In the invention according to claim 5, the chair for infants connects the left and right legs, which are composed of an upper connecting portion and front and rear leg rods hanging downward from the front and rear end portions of the connecting portion, The seat is provided with a seat plate supported on the support rod, and the front edge portion of the seat plate is configured to be located behind the front end portion of the front leg rod. .
As a result, even if an infant sits forward, the infant's hip point is behind the front leg pad, and even if the infant sits on the chair's seat plate, it is prevented that couples in the forward tilt direction act. Even if the infant moves forward in a sitting state and the way of sitting becomes shallow, the chair can be reliably prevented from falling forward.
In addition, since the seat plate includes a back plate extending upward from the rear portion, the infant is supported by the back plate on the back, and the back can be reliably supported.

また前後の脚杆は、前部脚杆が下部が前方に位置するように前下傾し、後部脚杆の下部が後方に位置するように後下傾し、連結部は、前後の脚杆の上部間を繋ぐ肘掛け杆であり、左右の脚は側面視略Ａ形であり、座板の前縁部は、前部脚杆よりも後方に位置しているので、特に前後の脚杆が前下傾、後下傾することで脚杆の踏ん張りが利き、安定した乳幼児用椅子が得られること、座板の前縁部が略Ａ形の脚の前部脚杆よりも後方なので、乳幼児が浅座りしても乳幼児の臀部から大腿部にかけて前部脚杆の上部内側となり、乳幼児の側方への移動を規制し、安定した座りを維持することができること、とする効果がある。   The front and rear footpads are tilted forward and downward so that the lower part of the front leg is positioned forward, and the rear part is tilted so that the lower part of the rear footrest is positioned rearward. The left and right legs are substantially A-shaped in side view, and the front edge of the seat plate is located behind the front leg so that the front and rear legs are particularly By tilting forward and backward, the leg can be strutted, and a stable infant chair can be obtained. The front edge of the seat is behind the front leg of the A-shaped leg. Even if the child sits down, it becomes the upper inner side of the front leg pad from the infant's buttocks to the thigh, and there is an effect that the movement of the infant to the side is restricted and the stable sitting can be maintained.

さらに本考案では、前部脚杆間であって、座板の下方には踏み板を設けたので、足を踏み板に載せて体重をかけたとしても、座板の前縁部が前部脚杆の前端部よりも後方となり、ヒップポイントは座板の前縁部よりも後方なので、踏み板を備えていたとしても椅子の前倒れを防止することができる。   Furthermore, in the present invention, since the foot board is provided between the front legs and below the seat board, even if the weight is put on the foot board and the weight is put on the foot board, the front edge part of the seat board is the front leg board. Since the hip point is behind the front edge of the seat plate, the chair can be prevented from falling forward even if it has a footboard.

本考案に係る乳幼児用椅子の外観を示す側面図である。It is a side view which shows the external appearance of the baby chair which concerns on this invention. 本考案に係る乳幼児用椅子の外観を示す平面図である。It is a top view which shows the external appearance of the chair for infants which concerns on this invention. 本考案に係る乳幼児用椅子の外観を示す斜視図である。It is a perspective view which shows the external appearance of the chair for infants which concerns on this invention. 本考案に係る乳幼児用椅子に乳幼児が正常の姿勢で座った状態を示す縦断側面図である。It is a vertical side view which shows the state which the infant sat down on the chair for infants concerning this invention with a normal posture. 図４と同様の乳幼児用椅子に乳幼児が座った状態を示す縦断側面図で、浅座りした状態における転倒防止作用を説明する作用説明図である。It is a vertical side view which shows the state which the infant sat down on the infant chair similar to FIG. 4, and is effect | action explanatory drawing explaining the fall prevention effect in the state sat down. 従来の椅子の側面図である。It is a side view of the conventional chair. 従来の椅子に乳幼児が浅座りした場合における課題を示す説明的側面図である。It is explanatory drawing which shows the subject in case the infant sits on the conventional chair.

本考案の実施の形態を添付図に基づいて以下に説明する。
なお、図面は符号の向きに見るものとする。
図１は本考案に係る乳幼児用椅子の外観を示す側面図、図２は同平面図、図３は同斜視図である。
これらの図面を参照して本考案に係る乳幼児用椅子の構成を詳細に説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
The drawings are viewed in the direction of the reference numerals.
1 is a side view showing the appearance of an infant chair according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a perspective view thereof.
The configuration of the infant chair according to the present invention will be described in detail with reference to these drawings.

幼児用椅子１（以下椅子と記す）は左右の脚部２，２と、脚部２，２の後部間を繋ぐ横杆６と、後端部から上傾するように起立した背板１０及び座板９からなる座部８と、脚部２，２の前下部間に架設された踏み板１２を備える。
脚部２，２は左右対称形状であり、前下傾した前部脚杆３と後下傾した後部脚杆４とを前後に備える。
前部脚杆３と後部脚杆４の上端部は連結部５で連結されており、連結部５で肘掛け杆を形成する。 An infant chair 1 (hereinafter referred to as a chair) includes left and right leg portions 2 and 2, a recumbent foot 6 that connects the rear portions of the leg portions 2 and 2, a back plate 10 that stands upright from the rear end portion, and A seat portion 8 comprising a seat plate 9 and a tread plate 12 installed between the front lower portions of the leg portions 2 and 2 are provided.
The leg portions 2 and 2 have a symmetrical shape and are provided with a front leg rod 3 tilted forward and a rear leg rod 4 tilted rearward and rearward.
The upper ends of the front leg rod 3 and the rear leg rod 4 are connected by a connecting portion 5, and the connecting portion 5 forms an armrest rod.

左右の脚部２，２の後部脚杆４，４の中間上部間には、これらを繋ぐ横杆６が左右方向に延びて架設されている。
また左右の脚部２，２の前後の前部脚杆３と後部脚杆４の中間上部間には、前後に渡り側杆７（支持杆）が延設されている。 Between the middle upper portions of the rear leg rods 4, 4 of the left and right leg portions 2, 2, a horizontal rod 6 that connects them extends in the left-right direction.
Further, between the front upper and lower front leg rods 3 and the middle upper portion of the rear leg rods 4 on the left and right leg portions 2, 2, a side rod 7 (support rod) is extended in the front-rear direction.

側杆７は、図２、図３で明らかなように前後方向に延び、前端部７ａを左右の前部脚杆３の中間上部に内側から接合されて連結一体化されており、側杆７の後端部７ｂは、前記した横杆６に接合されて連結一体化されている。
尚、左右の側杆７，７は、図２に示したように、前部が左右の前部脚杆３，３の内側に対称的に膨出して後方に直線状に延び、上記したように横杆６に接合され、左右の側杆７，７は左右対称形状である。 As shown in FIGS. 2 and 3, the side rod 7 extends in the front-rear direction, and the front end portion 7 a is joined and integrated from the inside to the middle upper portion of the left and right front leg rods 3. The rear end portion 7b is joined to and integrated with the above-mentioned reed 6.
As shown in FIG. 2, the left and right side rods 7 and 7 have their front portions symmetrically bulging inwardly of the left and right front leg rods 3 and 3 and extend rearward linearly, as described above. The left and right side bars 7 and 7 are symmetrical to each other.

左右の脚部２，２は、前部脚杆３、後部脚杆４及びこれの上端部を繋ぐ連結杆である肘掛け杆５、側杆７の構成により、図１で明らかなように側面視略Ａ形である。
以上の左右の脚部２，２は、実施例では金属製の丸パイプ材で形成した。 As shown in FIG. 1, the left and right legs 2 and 2 have a front leg rod 3, a rear leg rod 4, and an armrest rod 5 and a side rod 7 that connect the upper ends of the front leg rod 3 and the side rod 7. It is substantially A-shaped.
The left and right leg portions 2 and 2 are formed of a metal round pipe material in the embodiment.

座部８は臀部を支持する座板９と、座板９の後端部から上方に起立する背板１０とからなり、実施例では、背板１０は若干後上傾しており、木質板材や樹脂板材で座板９、背板１０は一体に形成されている。
座部８の座板９は、左右の側縁部９ｂ、９ｂが左右の脚２，２の内側に隙間をもって臨み、側縁部９ｂ、９ｂの内側の下面を左右の側杆７，７の直線状部分に載せ、ネジ１１…（…は複数を表す。以下同じ）で側杆７，７に固着されている。ネジ１１…は、説明の便宜上図２の平面図のみに示した。 The seat portion 8 is composed of a seat plate 9 that supports the heel portion and a back plate 10 that stands upward from the rear end portion of the seat plate 9. In the embodiment, the back plate 10 is slightly inclined upwardly, and is a wooden board material. The seat plate 9 and the back plate 10 are integrally formed of a resin plate material.
The seat plate 9 of the seat portion 8 has left and right side edges 9b, 9b facing the inside of the left and right legs 2, 2, with a gap between them, and the lower surfaces inside the side edges 9b, 9b are faced to the left and right side rods 7, 7. It is placed on the straight portion and fixed to the side rods 7 with screws 11 (... represents a plurality, the same applies hereinafter). The screws 11 are shown only in the plan view of FIG. 2 for convenience of explanation.

左右の前部脚杆３，３の下部間には踏み板１２を架け渡して設ける。
踏み板１２は、横の寸法が大きく、前後の寸法が小さい平面視横長矩形の板状材で形成されている。
踏み板１２の支持部材１３は、左右の側枠部１３ｂ，１３ｂと前枠部１３ａとを一体に備える平面視凹状であり、側枠部１３ｂ，１３ｂの前後方向中間部を前部脚杆３，３の下部内側に接合して支持部材１３を架設する。
支持部材１３は、左右の脚部２，２と同様に、実施例では金属製の丸パイプ材で形成した。 A tread 12 is bridged between the lower portions of the left and right front leg rods 3 and 3.
The tread board 12 is formed of a plate-like material having a horizontally long rectangular shape in plan view and a small front and rear dimension.
The support member 13 of the footboard 12 has a concave shape in a plan view integrally including left and right side frame portions 13b and 13b and a front frame portion 13a. The support member 13 is installed on the inner side of the lower part of 3.
In the embodiment, the support member 13 is made of a metal round pipe material, like the left and right leg portions 2 and 2.

踏み板１２は、前部１２ａ及び左右の側部１２ｂ，１２ｂを支持部材１３の前枠部１３ａ、側枠部１３ｂ，１３ｂに載置し、側枠部１３ｂ，１３ｂ上に踏み板１２の左右の側部１２ｂ、１２ｂをネジ１４・・・で固着した。
踏み板１２は、前半の略１／２が前部脚杆３の下部の前方に突出し、後半の略１／２が前部脚杆３の下部の後方に突出している。 The footboard 12 has the front portion 12a and the left and right side portions 12b and 12b placed on the front frame portion 13a and the side frame portions 13b and 13b of the support member 13, and the left and right sides of the footboard 12 on the side frame portions 13b and 13b. The parts 12b and 12b were fixed with screws 14.
In the tread board 12, approximately ½ of the first half protrudes forward of the lower portion of the front leg rod 3, and approximately ½ of the latter half protrudes rearward of the lower portion of the front leg rod 3.

以上において、図１に示すように座部８の座板９の前縁部９ａを、前部脚杆３において座板９が位置する部分の前端部３ａよりも十分後方に位置させ、前端部３ａから距離Ｌを開けて配置する。
実施例のように前縁部９ａを前部脚杆３における座板が位置する部分の後端部３ｂよりも後方に位置させ、前縁部９ａは、側杆７，７の前端部よりも十分に後方に位置させる。 In the above, as shown in FIG. 1, the front edge portion 9a of the seat plate 9 of the seat portion 8 is positioned sufficiently rearward of the front end portion 3a of the portion where the seat plate 9 is located in the front leg collar 3, and the front end portion Arranged at a distance L from 3a.
As in the embodiment, the front edge portion 9a is positioned rearward of the rear end portion 3b of the front leg rod 3 where the seat plate is located, and the front edge portion 9a is more than the front end portions of the side rods 7 and 7. Position it far enough.

図４は、乳幼児１５が椅子１の座部８に座った状態を示している。
通常の座り状態では、乳幼児１５の臀部１５ａのヒップポイントＰは、座板９の全長の略々半分程度の位置、或いはこの位置の近傍か前後の部分であり、足１５ｂは踏み板１２の上に載っており、座板９と踏み板１２との高さは、座板９に座った状態で乳幼児の足の長さを考慮して踏ん張れる程度の高さである。 FIG. 4 shows a state in which the infant 15 sits on the seat 8 of the chair 1.
In a normal sitting state, the hip point P of the buttocks 15a of the infant 15 is a position that is approximately half the total length of the seat plate 9, or a portion near or before and after this position, and the foot 15b is on the tread plate 12. The height of the seat board 9 and the tread board 12 is such that it can be stood in consideration of the length of the infant's foot while sitting on the seat board 9.

尚本実施例では、１０ヶ月から１８ヶ月の乳幼児の一般的な体型に合わせて座板９を短く設定しているため、深座り状態のときには、足を踏み板１２に載せた状態で乳幼児の背中が背板１０にくっつく状態となり、筋力が発達していない乳幼児でも安定した状態で座ることを可能としている。   In this embodiment, the seat plate 9 is set to be short in accordance with the general body shape of an infant of 10 to 18 months. Sticks to the back plate 10, and even an infant whose muscle strength is not developed can sit in a stable state.

図４は通常の着座状態を示しており、図５は、図４の状態を逸脱して浅座りした状態を示している。
乳幼児１５は、椅子１に着座しているとしても、前後左右に体を動かしたり、踏み板１２上において足を踏ん張ったりして落ち着かない。
この結果、座板９上において前方に移動したりし、臀部１５ａが座板９の前側の部位に移動し、ヒップポイントＰが座板９の前縁部９ａに近い位置まで移動する場合がある。 FIG. 4 shows a normal seating state, and FIG. 5 shows a state where the user is sitting away from the state of FIG.
Even when the infant 15 is seated on the chair 1, the infant 15 does not settle down by moving his / her body forward / backward / left / right or struggling on the footboard 12.
As a result, it may move forward on the seat plate 9, the collar portion 15 a may move to the front portion of the seat plate 9, and the hip point P may move to a position close to the front edge portion 9 a of the seat plate 9. .

この状態を図５で示した。
例えば、図５において、ヒップポイントＰと座板９の前縁部９ａとの間の距離がＬ１と近くなり、ヒップポイントＰと前部脚杆３の前端部３ａとの間が距離Ｌ２となる。
本考案では、常にＬ１＜Ｌ２となる。
この結果、図５において右回転（時計方向）の偶力が作用し、浅座りしたとしても、椅子が前方に転倒することを防止することができる。 This state is shown in FIG.
For example, in FIG. 5, the distance between the hip point P and the front edge 9a of the seat plate 9 is close to L1, and the distance between the hip point P and the front end 3a of the front leg 3 is L2. .
In the present invention, L1 <L2 is always satisfied.
As a result, even if a couple of clockwise rotation (clockwise) acts in FIG. 5 and sits down, it is possible to prevent the chair from tipping forward.

また、前部脚杆３は前下傾しているので、前部脚杆３の接地部とヒップポイントＰとの間には距離Ｌ３が設けられこととなり、距離Ｌ３は上記した距離Ｌ２よりも大きいので、踏み板１２に足を載せて踏ん張ったりしても、前方への倒れは防止される。   Further, since the front leg rod 3 is inclined forward and downward, a distance L3 is provided between the ground contact portion of the front leg rod 3 and the hip point P, and the distance L3 is larger than the distance L2 described above. Since it is large, even if the foot is placed on the tread board 12 and stepped on, it is prevented from falling forward.

尚、図５に示したように、乳幼児１５が座板９に浅座りしたとしても、乳幼児の臀部から大腿部の左右には前部脚杆３の上部３ｃ、肘掛け杆５の前部が臨み、座板９上における横滑りを防止することができる。
また、この座板９の横方向の長さは、１０ヶ月から１８ヶ月の乳幼児の平均的なサイズを考慮して設定されている。
従って、幼児が椅子の側方に横滑りすることは無い。 As shown in FIG. 5, even if the infant 15 sits on the seat plate 9, the upper part 3c of the front leg 3 and the front part of the armrest 5 are located on the left and right sides of the infant's buttocks and thighs. The side slip on the seat plate 9 can be prevented.
The lateral length of the seat plate 9 is set in consideration of the average size of infants from 10 to 18 months.
Therefore, the infant does not slide to the side of the chair.

以上図示した実施例を説明した。
本実施例では、前後の左右の脚２，２を、前後の脚杆３，４を含んで逆Ｖ形とし、側枠を含んで略Ａ形とした。これにより、、椅子同士を複数安定して積み上げることが可能である。
これに代え、前後の脚杆３，４が略々平行である逆凹形の脚を有する椅子においても実施することができる。
要は脚が前後の脚杆を有し、脚で支持される座板の前縁部が、前部脚杆の前端部よりも十分に後方に位置していれば良く、本実施例と同様の作用・効果を得ることができる。 The embodiment illustrated above has been described.
In this embodiment, the front and rear left and right legs 2 and 2 are formed in an inverted V shape including the front and rear leg rods 3 and 4 and are substantially A-shaped including the side frames. Thereby, it is possible to stack a plurality of chairs stably.
Instead of this, the present invention can also be implemented in a chair having reverse concave legs in which the front and rear leg rods 3 and 4 are substantially parallel.
The point is that the leg has front and rear footpads, and the front edge of the seat plate supported by the legs should be located sufficiently behind the front end of the front footpad, as in this embodiment. The operation and effect of can be obtained.

本考案に係る乳幼児用椅子は、椅子の使用を開始する１０ヶ月から１８ヶ月の乳幼児が用いるのに好適する。   The infant chair according to the present invention is suitable for use by an infant of 10 to 18 months who starts using the chair.

１…乳幼児用椅子、 ２…脚部、 ３…前部脚杆、 ３ａ…前部脚杆の座板相対位置の前端部、 ４…後部脚杆、 ５…連結部（肘掛け杆）、 ６、７…支持杆である側杆及び横杆、 ８…座部、 ９…座板、 ９ａ…座板の前縁部、 １０…背板、１２…踏み板。   DESCRIPTION OF SYMBOLS 1 ... Infant chair, 2 ... Leg part, 3 ... Front leg pad, 3a ... Front end part of the seat board relative position of front leg pad, 4 ... Rear leg pad, 5 ... Connection part (armrest), 7: A side heel and a side heel which are support ridges, 8 ... A seat part, 9 ... A seat board, 9a ... A front edge part of a seat board, 10 ... A back board, 12 ... A tread board.

Claims (5)

上部の連結部と、該連結部の前後端部から下方に垂下された前後部の脚杆とからなる左右の脚部と、左右の脚部を繋ぎ、座部を支持する支持杆とを備え、
前記座部は支持杆上に支持される座板を備え、
前記座板の前縁部は、前記前部脚杆の前端部よりも後方に位置するようにした、
ことを特徴とする乳幼児用椅子。 Left and right leg parts composed of an upper connection part, front and rear leg parts suspended downward from the front and rear end parts of the connection part, and a support bar for connecting the left and right leg parts and supporting the seat part ,
The seat includes a seat plate supported on a support rod;
The front edge portion of the seat plate is located behind the front end portion of the front leg rod,
An infant chair characterized by that. 前記前後部の脚杆は、前部脚杆の下部が前方に位置するように前下傾し、後部脚杆の下部が後方に位置するように後下傾し、前記連結部は、前後部の脚杆の上部間を繋ぐ肘掛け杆であり、左右の脚は側面視略Ａ形であり、前記座板の前縁部は、前記前部脚杆よりも後方に位置していることを特徴とする請求項１記載の乳幼児用椅子。   The front and rear legs are tilted forward and downward so that the lower part of the front leg is positioned forward, and the rear and rear legs are tilted so that the lower part of the rear leg is positioned rearward and the connecting part is The left and right legs are substantially A-shaped in side view, and the front edge of the seat plate is located behind the front leg heel. The infant chair according to claim 1. 前記前部脚杆間であって、前記座板の下方には、踏み板を設けたことを特徴とする請求項１又は２記載の乳幼児用椅子。   The infant chair according to claim 1 or 2, wherein a tread is provided between the front legs and below the seat plate. 前記座板は後部から上方に延出された背板を備えることを特徴とする請求項１〜３の何れか１項に記載の乳幼児用椅子。   The infant chair according to any one of claims 1 to 3, wherein the seat plate includes a back plate extending upward from a rear portion. 上部の連結部と、該連結部の前後端部から下方に垂下された前後部の脚杆とからなる左右の脚と、左右の脚部を繋ぎ、座部を支持する支持杆とを備え、
前記座部は支持杆上に支持される座板と、座板は後部から上方に延出された背板を備え、
前記座部の前記座板の前縁部は、前記前部脚杆の前端部よりも後方に位置し、
前記前後部の脚杆は、前部脚杆が下部が前方に位置するように前下傾し、後部脚杆の下部が後方に位置するように後下傾し、前記連結部は、前後部の脚杆の上部間を繋ぐ肘掛け杆であり、左右の脚は側面視略Ａ形であり、前記座板の前縁部は、前記前部脚杆よりも後方に位置し、
前記前部脚杆間であって、前記座板の下方には、踏み板を設けた、
ことを特徴とする乳幼児用椅子。 A left and right leg composed of an upper connecting portion, front and rear leg rods suspended downward from the front and rear end portions of the connecting portion, and a support rod for connecting the left and right leg portions and supporting the seat portion;
The seat includes a seat plate supported on a support rod, and the seat plate includes a back plate extending upward from the rear portion;
The front edge portion of the seat plate of the seat portion is located behind the front end portion of the front leg rod,
The front and rear legs are tilted forward and downward so that the lower part of the front leg is positioned forward, and the rear part is tilted and rearward so that the lower part of the rear leg is positioned rearward. The left and right legs are substantially A-shaped in side view, and the front edge of the seat plate is located behind the front leg heel,
Between the front legs, and below the seat plate, a footboard is provided,
An infant chair characterized by that.

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