JP2009120182A - Foldable pushcart and foldable baby carriage - Google Patents

Foldable pushcart and foldable baby carriage Download PDF

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JP2009120182A
JP2009120182A JP2008236824A JP2008236824A JP2009120182A JP 2009120182 A JP2009120182 A JP 2009120182A JP 2008236824 A JP2008236824 A JP 2008236824A JP 2008236824 A JP2008236824 A JP 2008236824A JP 2009120182 A JP2009120182 A JP 2009120182A
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pair
members
frame members
vertical frame
baby carriage
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JP5230317B2 (en
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Ichiro Onishi
伊知朗 大西
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Graco Childrens Products Inc
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Graco Childrens Products Inc
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Priority to JP2008236824A priority Critical patent/JP5230317B2/en
Priority to US12/288,068 priority patent/US8066300B2/en
Priority to EP08018152A priority patent/EP2052943B1/en
Priority to DE200860004289 priority patent/DE602008004289D1/en
Priority to CN2008101702928A priority patent/CN101417665B/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a foldable baby carriage having sliding push bars and foldable reduced in width direction size with simple structure. <P>SOLUTION: The baby carriage includes: a pair of front legs 4; a pair of connecting members 2; a pair of guide sleeves 3 fixed to the intermediate regions of the pair of front legs respectively; a pair of rear legs 4 with the upper ends turnably connected to the pair of connecting members 2; a pair of push bars 5 slidably held to the pair of connecting members 2 and the pair of guide sleeves 3; a pair of sliding members 7 provided slidably on the upper regions of the pair of rear legs; a back face cross member 8 with its upper end turnably connected to the pair of sliding members and with its lower end turnably connected to the lower regions of the pair of rear legs; and a bottom face cross member with its front end turnably connected to the lower ends of the pair of push bars and with its rear end turnably connected to the intermediate regions of the pair of rear legs. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、手押し車および乳母車に関するものであり、特に前後方向および幅方向のサイズが縮小して折り畳まれる折畳式手押し車、ならびに高さ方向および幅方向のサイズが縮小して折り畳まれる折畳式乳母車に関するものである。なお、手押し車は、乳母車や荷物運搬車等を含む広い意味を持つ。   The present invention relates to a wheelbarrow and a baby carriage, and in particular, a folding wheelbarrow that is folded by reducing the size in the front-rear direction and the width direction, and a folding that is folded by reducing the size in the height direction and the width direction It relates to the expression baby carriage. In addition, a wheelbarrow has a broad meaning including a baby carriage or a luggage carrier.

高さ方向および幅方向のサイズが縮小して折り畳まれる乳母車は、例えば実公昭４５−１３５４９号公報および特公平７−１２８２４号公報に開示されている。これらの公報に開示された乳母車では、上下方向に延びる一対の前脚に対して、上下方向に延びる一対の押棒を前方に折れ曲がるように構成して、折り畳み状態の高さを減じている。また、乳母車は、折り畳み状態において、幅方向サイズが縮小するようになっている。そのような幅方向サイズの縮小を可能にするために、一対の後脚と、一対の押棒とは、Ｘ字状に交差する２つの棒部材からなる背面クロス部材によって連結されている。   A baby carriage that is folded with a reduced size in the height direction and the width direction is disclosed in, for example, Japanese Utility Model Publication No. 45-13549 and Japanese Patent Publication No. 7-12824. In the strollers disclosed in these publications, a pair of push rods extending in the vertical direction are configured to be bent forward with respect to the pair of front legs extending in the vertical direction, thereby reducing the height of the folded state. In addition, the baby carriage is configured to be reduced in size in the width direction in the folded state. In order to enable such a reduction in size in the width direction, the pair of rear legs and the pair of push rods are connected by a back cross member formed of two bar members that intersect in an X shape.

実公昭４５−１３５４９号公報および特公平７−１２８２４号公報に開示された乳母車は、一対の押棒を前方に折れ曲がるように構成することによって折り畳み状態の高さを減少させているが、他のタイプの乳母車が、例えば、特表２００１−５２５２９１号公報および特表２００５−５２２３７２号公報に開示されている。これらの公報に開示された乳母車では、一対の押棒を一対の前脚に沿って下降させることによって、乳母車の折り畳み状態の高さを減じている。
実公昭４５−１３５４９号公報 特公平７−１２８２４号公報 特表２００１−５２５２９１号公報 特表２００５−５２２３７２号公報 The baby carriages disclosed in Japanese Utility Model Publication No. 45-13549 and Japanese Patent Publication No. 7-12824 are reduced in height by folding a pair of push rods so that they are folded forward. Such baby carriages are disclosed in, for example, Japanese Patent Publication No. 2001-525291 and Japanese Patent Publication No. 2005-522372. In the baby carriages disclosed in these publications, the height of the baby carriage in the folded state is reduced by lowering the pair of push rods along the pair of front legs.
Japanese Utility Model Publication No. 45-13549 Japanese Patent Publication No. 7-12824 JP-T-2001-525291 JP 2005-522372 A

実公昭４５−１３５４９号公報および特公平７−１２８２４号公報に開示された乳母車では、一対の押棒の背面に背面クロス部材の上方部分が連結されているので、一対の押棒間に位置する背もたれ部を後傾可能に設けることが困難である。   In the baby carriage disclosed in Japanese Utility Model Publication No. 45-13549 and Japanese Patent Publication No. 7-12824, the upper portion of the back cross member is connected to the back of the pair of push rods. Is difficult to be provided so as to tilt backward.

特表２００１−５２５２９１号公報および特表２００５−５２２３７２号公報に開示されたようなスライド式押棒を持つ乳母車では、一対の押棒の背面には障害物となるような部材が存在していないので、背もたれ部を後傾可能に設けることが可能である。この観点に注目するのであれば、スライド式押棒を持つ乳母車が好ましいものであるということができる。スライド式押棒を持つ乳母車の場合、一対の押棒と一対の後脚とを連結するような背面クロス部材を設けることは困難であるので、折畳み状態において幅方向サイズを縮小するためには何らかの工夫が必要である。   In a stroller having a sliding push bar as disclosed in JP-T-2001-525291 and JP-T-2005-522372, there are no members that become obstacles on the back of the pair of push bars, It is possible to provide the backrest portion so that it can tilt backward. If attention is paid to this point of view, it can be said that a baby carriage having a sliding push bar is preferable. In the case of a stroller having a sliding push bar, it is difficult to provide a back cross member that connects a pair of push bars and a pair of rear legs. is necessary.

特表２００５−５２２３７２号公報には、乳母車の折畳み状態において幅方向のサイズを縮小するように構成することについて何等の記載も無い。特表２００１−５２５２９１号公報には乳母車の折り畳み時に幅方向サイズが縮小する旨の記載はあるが、それを実現するための具体的な構造が記載されていない。   The Japanese translation of PCT publication No. 2005-522372 has no description about the configuration in which the size in the width direction is reduced in the folded state of the baby carriage. JP-T-2001-525291 discloses that the size in the width direction is reduced when the baby carriage is folded, but does not describe a specific structure for realizing it.

この発明の目的は、スライド式押棒を持つ乳母車において、シンプルな構造で幅方向サイズを縮小して折り畳めるようにした折畳式乳母車を提供することである。   An object of the present invention is to provide a foldable baby carriage that has a simple structure and can be folded with a reduced size in the width direction in a baby carriage having a sliding push bar.

この発明の他の目的は、シンプルな構造で前後方向および幅方向のサイズを縮小して折り畳めるようにした折畳式手押し車を提供することである。   Another object of the present invention is to provide a foldable handcart that can be folded by reducing the size in the front-rear direction and the width direction with a simple structure.

一つの局面において、この発明に従った折畳式手押し車は、前後方向および幅方向のサイズが縮小して折り畳まれるものであって、平行な位置関係で上下方向に延びる一対の第１縦フレーム部材と、平行な位置関係で上下方向に延び、一対の第１縦フレーム部材の上方部に回動可能に連結された一対の第２縦フレーム部材と、第１クロス部材と、一対のサイドフレーム部材とを備える。第１クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その上方端部が一対の第１縦フレーム部材にスライド可能に支持され、その下方端部が一対の第１縦フレーム部材に回動可能に連結されている。一対のサイドフレーム部材は、平行な位置関係で前後方向に延び、その一方端部が第１クロス部材の上方端部に回動可能に連結され、その他方端部が一対の第２縦フレーム部材に回動可能に連結されている。   In one aspect, the foldable handcart according to the present invention is folded by reducing the size in the front-rear direction and the width direction, and is a pair of first vertical frames extending in the vertical direction in a parallel positional relationship. A pair of second vertical frame members that extend in the vertical direction in a parallel positional relationship with the member and are pivotally connected to upper portions of the pair of first vertical frame members, a first cross member, and a pair of side frames A member. The first cross member includes two bar members intersecting in an X shape, and an upper end portion thereof is slidably supported by the pair of first vertical frame members, and a lower end portion thereof is a pair of first vertical frame members. It is connected to the pivotable. The pair of side frame members extend in the front-rear direction in a parallel positional relationship, one end of which is rotatably connected to the upper end of the first cross member, and the other end is a pair of second vertical frame members. It is connected to the pivotable.

上記構成の手押し車によれば、第１クロス部材の上方端部を上方に移動させるように操作すれば、第１クロス部材の幅寸法が縮小して一対の第１縦フレーム部材の間隔が狭まり、さらに一対のサイドフレーム部材を介して第１縦フレーム部材の下方部と第２縦フレーム部材の下方部とが近づくので、手押し車の折畳み状態における前後方向および幅方向のサイズを小さくすることができる。   According to the wheelbarrow configured as described above, if the upper end portion of the first cross member is moved upward, the width dimension of the first cross member is reduced and the distance between the pair of first vertical frame members is reduced. Furthermore, since the lower part of the first vertical frame member and the lower part of the second vertical frame member come closer through the pair of side frame members, the size in the front-rear direction and the width direction in the folded state of the handcart can be reduced. it can.

好ましくは、手押し車は、Ｘ字状に交差する２つの棒部材を含み、その一方端部が一対の第２縦フレーム部材にスライド可能に支持され、その他方端部が一対の第１縦フレーム部材に回動可能に連結された第２クロス部材をさらに備える。   Preferably, the handcart includes two bar members intersecting in an X shape, one end of which is slidably supported by the pair of second vertical frame members, and the other end is a pair of first vertical frames. A second cross member connected to the member to be rotatable is further provided.

一つの実施形態に係る手押し車は、一対の第２縦フレーム部材に部分的に重なって上下方向に延び、その下方端部が第２クロス部材に回動可能に連結された一対の第３縦フレーム部材を備える。   A handcart according to one embodiment partially overlaps with a pair of second vertical frame members and extends in a vertical direction, and a lower end portion thereof is rotatably coupled to a second cross member. A frame member is provided.

他の局面において、この発明に従った折畳式手押し車は、前後方向および幅方向のサイズが縮小して折り畳まれるものであって、平行な位置関係で上下方向に延びる一対の第１縦フレーム部材と、平行な位置関係で上下方向に延び、一対の第１縦フレーム部材の上方部に回動可能に連結された一対の第２縦フレーム部材と、第１クロス部材と、第２クロス部材とを備える。第１クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その上方端部が一対の第１縦フレーム部材にスライド可能に支持され、その下方端部が一対の第１縦フレーム部材に回動可能に連結されている。第２クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その一方端部が一対の第２縦フレーム部材にスライド可能に支持され、その他方端部が一対の第１縦フレーム部材に回動可能に連結されている。   In another aspect, the foldable wheelbarrow according to the present invention is folded by reducing the size in the front-rear direction and the width direction, and is a pair of first vertical frames extending in the vertical direction in a parallel positional relationship. A pair of second vertical frame members that extend in the vertical direction in a parallel positional relationship with the member and are pivotally connected to upper portions of the pair of first vertical frame members, a first cross member, and a second cross member With. The first cross member includes two bar members intersecting in an X shape, and an upper end portion thereof is slidably supported by the pair of first vertical frame members, and a lower end portion thereof is a pair of first vertical frame members. It is connected to the pivotable. The second cross member includes two bar members intersecting in an X shape, one end of which is slidably supported by the pair of second vertical frame members, and the other end is a pair of first vertical frame members. It is connected to the pivotable.

この発明に従った折畳式乳母車は、高さ方向および幅方向のサイズが縮小して折り畳まれるものであって、上下方向に延びその下端部に前輪を有する一対の前脚と、上下方向に延びその下端部に後輪を有する一対の後脚と、一対の前脚に部分的に重なって上下方向に延びる一対の押棒と、一対の前脚の上端部に固定された一対の連結部材と、一対の前脚の中間領域に固定された一対の案内スリーブと、一対の後脚の上方領域上をスライド可能に設けられた一対のスライド部材と、背面クロス部材と、底面クロス部材とを備える。   A foldable baby carriage according to the present invention is folded by reducing the size in the height direction and the width direction, and extends in the vertical direction and extends in the vertical direction with a pair of front legs having a front wheel at the lower end thereof. A pair of rear legs having a rear wheel at its lower end, a pair of push bars partially overlapping the pair of front legs and extending in the vertical direction, a pair of connecting members fixed to the upper ends of the pair of front legs, and a pair of A pair of guide sleeves fixed to an intermediate region of the front legs, a pair of slide members provided so as to be slidable on an upper region of the pair of rear legs, a back cross member, and a bottom cross member.

一対の後脚の上端部は、一対の連結部材に回動可能に連結される。一対の押棒は、一対の連結部材および一対の案内スリーブにスライド可能に保持される。背面クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その上端部が一対のスライド部材に回動可能に連結され、その下端部が一対の後脚の下方領域に回動可能に連結される。底面クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その前端部が一対の押棒の下端部に回動可能に連結され、その後端部が一対の後脚の中間領域に回動可能に連結される。   The upper ends of the pair of rear legs are rotatably connected to the pair of connecting members. The pair of push rods are slidably held by the pair of connecting members and the pair of guide sleeves. The back cross member includes two bar members intersecting in an X-shape, and its upper end is rotatably connected to the pair of slide members, and its lower end is rotatable to the lower region of the pair of rear legs. Connected. The bottom cross member includes two bar members that intersect in an X-shape, and its front end portion is rotatably connected to the lower end portions of the pair of push rods, and the rear end portion rotates to an intermediate region between the pair of rear legs. Connected as possible.

上記構成の乳母車によれば、一対の押棒の背面には、背もたれ部の後傾動作を妨げるような障害物が存在しない。また、一対の押棒を下降させると、それに追従して底面クロス部材および背面クロス部材の交差角度が変化して一対の前脚、一対の後脚および一対の押棒の間隔も狭くなるので、乳母車の折畳み状態における高さ方向および幅方向のサイズを小さくすることができる。   According to the stroller configured as described above, there are no obstacles on the back surfaces of the pair of push rods that hinder the backward tilting operation of the backrest portion. Further, when the pair of push rods are lowered, the crossing angle of the bottom cross member and the back cross member is changed accordingly, and the distance between the pair of front legs, the pair of rear legs, and the pair of push rods is narrowed. The size in the height direction and the width direction in the state can be reduced.

乳母車は、好ましい実施形態では、前後方向に延び、その前方領域または中間領域が一対の前脚に回動可能に連結され、その後端部が一対のスライド部材に回動可能に連結された一対の支持棒を備える。   In a preferred embodiment, the baby carriage extends in the front-rear direction, and a front region or a middle region thereof is pivotally connected to a pair of front legs, and a rear end portion thereof is pivotally connected to a pair of slide members. Provide a stick.

乳母車は、好ましくは、当該乳母車の開状態において、背面クロス部材を構成する２つの棒部材の交差角度を固定する開状態ロック機構を備える。さらに好ましくは、乳母車は、当該乳母車の開状態において、前脚に対する押棒の位置を固定する押棒ロック機構を備える。   The baby carriage is preferably provided with an open state locking mechanism that fixes the crossing angle of the two bar members constituting the back cross member in the open state of the baby carriage. More preferably, the baby carriage includes a push bar locking mechanism that fixes the position of the push bar with respect to the front leg in the opened state of the baby carriage.

好ましい実施形態では、乳母車は、逆Ｕ字状の形態を有して一対の押棒の上方端を連結するハンドル部材を備える。このハンドル部材は、Ｌ字状の形態を有し、その一方端部が一方の押棒の上方端に固定された第１ハンドルアームと、第１ハンドルアームと対称的なＬ字状の形態を有し、その一方端部が他方の押棒の上方端に固定された第２ハンドルアームと、第１ハンドルアームの他方端部と、第２ハンドルアームの他方端部とを分離可能に連結する連結機構とを含む。   In a preferred embodiment, the baby carriage includes a handle member that has an inverted U-shape and connects the upper ends of a pair of push rods. The handle member has an L-shaped form, and has a first handle arm whose one end is fixed to the upper end of one push bar, and an L-shaped form symmetrical to the first handle arm. And a connecting mechanism for detachably connecting the second handle arm whose one end is fixed to the upper end of the other push rod, the other end of the first handle arm, and the other end of the second handle arm. Including.

さらに好ましい実施形態では、乳母車は、その幅方向両端が、一対の連結部材よりも下方の位置で、一対の押棒に連結保持された幌を備える。   In a further preferred embodiment, the baby carriage includes a hood that is connected to and held by a pair of push rods at both ends in the width direction below the pair of connecting members.

図１〜図４は、折畳式乳母車の全体を示している。図１は乳母車の車体フレームを示し、図２は座席ハンモック２３、幌１７および物品収納袋２２を装着した状態の乳母車を示し、図３は開いた状態の乳母車の側面図を示し、図４は折り畳んだ状態の乳母車の側面図を示している。   1 to 4 show the entire folding baby carriage. 1 shows a body frame of the baby carriage, FIG. 2 shows the baby carriage with the seat hammock 23, the hood 17 and the article storage bag 22 attached, FIG. 3 shows a side view of the baby carriage in the opened state, and FIG. The side view of the baby carriage of the folded state is shown.

乳母車は、高さ方向および幅方向のサイズが縮小して折り畳まれるものである。乳母車は、車体フレームの主要構成要素として、一対の前脚１と、一対の後脚４と、一対の押棒５と、ハンドル部材６と、一対の座部支持棒１０と、背面クロス部材８と、底面クロス部材９とを備える。   The baby carriage is folded by reducing the size in the height direction and the width direction. The baby carriage includes a pair of front legs 1, a pair of rear legs 4, a pair of push rods 5, a handle member 6, a pair of seat support rods 10, a back cross member 8, as main components of the body frame. And a bottom cross member 9.

各前脚１は、上下方向に延びており、その下端部に前輪を有し、その上端部に連結部材２を有している。連結部材２は、前脚１に固定されており、その前方部に筒状体２ａを有し、その後方部に張出し部２ｂを有している。各前脚１の中間領域には、案内スリーブ３が固定して取り付けられている。この案内スリーブ３は、その前方部に筒状体３ａを有している。   Each front leg 1 extends in the vertical direction, has a front wheel at its lower end, and has a connecting member 2 at its upper end. The connecting member 2 is fixed to the front leg 1, and has a cylindrical body 2a at the front part thereof and an overhang part 2b at the rear part thereof. A guide sleeve 3 is fixedly attached to an intermediate region of each front leg 1. The guide sleeve 3 has a cylindrical body 3a at the front portion thereof.

各後脚４は、上下方向に延びており、その下端部に後輪を有している。各後脚４の上端部は、前脚１に固定された連結部材２の張出し部２ｂに回動可能に連結されている。乳母車の折り畳み動作に伴って各後脚４は各前脚１に近づく方向に回動し、図４に示す折畳み状態においては、各後脚４と各前脚１とは平行な関係で位置し、後輪は前輪の上方に位置する。   Each rear leg 4 extends in the vertical direction and has a rear wheel at the lower end thereof. The upper end portion of each rear leg 4 is rotatably connected to an overhanging portion 2b of a connecting member 2 fixed to the front leg 1. Each rear leg 4 rotates in a direction approaching each front leg 1 in accordance with the folding operation of the baby carriage. In the folded state shown in FIG. 4, each rear leg 4 and each front leg 1 are positioned in a parallel relationship, and The wheel is located above the front wheel.

各押棒５は、その下方領域が各前脚１上に重なるように配置されて上下方向に延びている。この押棒５は、前脚１に固定された連結部材２および案内スリーブ３の筒状体２ａ，３ａにスライド可能に保持されている。乳母車の折り畳み動作に伴って各押棒５は各前脚１上を下方に向かってスライド移動し、図４に示す折り畳み状態においては、各押棒５の下方端が地面に当接するようになる。地面に接する押棒５の下方端と前輪とによって、折り畳み状態の乳母車は自立することが可能である。   Each push bar 5 is arranged so that its lower region overlaps with each front leg 1 and extends in the vertical direction. The push bar 5 is slidably held by the connecting member 2 fixed to the front leg 1 and the cylindrical bodies 2 a and 3 a of the guide sleeve 3. As the baby carriage is folded, each push bar 5 slides downward on each front leg 1, and in the folded state shown in FIG. 4, the lower end of each push bar 5 comes into contact with the ground. The folded baby carriage can stand on its own by the lower end of the push bar 5 in contact with the ground and the front wheel.

一対の押棒５の上方端は、逆Ｕ字状形態のハンドル部材６によって連結されている。図５および図６に示すように、ハンドル部材６は、Ｌ字状の形態を有し、その一方端部が一方の押棒５の上方端に固定された第１ハンドルアーム６１と、Ｌ字状の形態を有し、その一方端部が他方の押棒５の上方端に固定された第２ハンドルアーム６２とを有している。第１ハンドルアーム６１の他方端と、第２ハンドルアーム６２の他方端とは、連結機構によって分離可能に連結されている。この構造については、主として図９〜図１２を参照しながら後に詳細に説明する。   The upper ends of the pair of push rods 5 are connected by a handle member 6 having an inverted U shape. As shown in FIGS. 5 and 6, the handle member 6 has an L-shaped form, and has a first handle arm 61 whose one end is fixed to the upper end of one push bar 5, and an L-shape. And one end of the second handle arm 62 fixed to the upper end of the other push bar 5. The other end of the first handle arm 61 and the other end of the second handle arm 62 are detachably coupled by a coupling mechanism. This structure will be described in detail later mainly with reference to FIGS.

図７および図８は、一対の後脚４および背面クロス部材８を背面側から見た図であり、図７は乳母車の開状態を示し、図８は乳母車の折り畳み状態を示している。一対の後脚４の上方領域上に、一対のスライド部材７がスライド可能に配置されている。乳母車の折り畳み動作に伴って各スライド部材７は各後脚４上を上方に向かってスライド移動する。   7 and 8 are views of the pair of rear legs 4 and the back cross member 8 as seen from the back side, FIG. 7 shows the opened state of the baby carriage, and FIG. 8 shows the folded state of the baby carriage. A pair of slide members 7 are slidably disposed on the upper region of the pair of rear legs 4. As the baby carriage is folded, the slide members 7 slide upward on the rear legs 4.

背面クロス部材８は、Ｘ字状に交差する第１棒部材８１と第２棒部材８２とを含み、その上端部が一対のスライド部材７に回動可能に連結され、その下端部が一対の後脚４の下方領域に回動可能に連結されている。第１棒部材８１と第２棒部材８２とは、それらの交差部において回動可能に連結されている。図７および図８を比較すれば明らかなように、乳母車の折畳み状態においては、背面クロス部材８の上下端の距離が長くなり、一対の後脚４の間隔が狭まっている。   The back cross member 8 includes a first bar member 81 and a second bar member 82 that intersect in an X shape, and an upper end portion thereof is rotatably connected to the pair of slide members 7, and a lower end portion thereof is a pair of A lower region of the rear leg 4 is rotatably connected. The 1st rod member 81 and the 2nd rod member 82 are connected so that rotation is possible in those crossing parts. As apparent from a comparison between FIGS. 7 and 8, in the folded state of the baby carriage, the distance between the upper and lower ends of the back cross member 8 is increased, and the distance between the pair of rear legs 4 is decreased.

図１および図３に示すように、底面クロス部材９は、Ｘ字状に交差する第１の棒部材９１と第２の棒部材９２とを含み、その前端部が一対の押棒５の下端部に回動可能に連結され、その後端部が一対の後脚４の中間領域に回動可能に連結されている。乳母車の折り畳み動作に伴って一対の押棒５が前脚１に沿って下方へ移動すると、押棒５の下端部に連結された底面クロス部材９の前端部もそれに追従して下方へ移動し、それに伴い、底面クロス部材９の後端部に連結された一対の後脚４を前脚１に向かって回動させる。また、押棒５の下端部の下方への移動量が大きくなるのにつれて、底面クロス部材９の前端部と後端部との間の距離が長くなるので、一対の前脚１間の間隔および一対の後脚４間の間隔が狭まる。   As shown in FIGS. 1 and 3, the bottom cross member 9 includes a first bar member 91 and a second bar member 92 that intersect in an X shape, and the front end portions thereof are the lower end portions of the pair of push rods 5. The rear end of the pair of rear legs 4 is rotatably connected to the middle region. When the pair of push rods 5 moves downward along the front leg 1 in accordance with the folding operation of the baby carriage, the front end portion of the bottom cross member 9 connected to the lower end portion of the push rod 5 also moves downward accordingly, and accordingly. Then, the pair of rear legs 4 connected to the rear end of the bottom cross member 9 is rotated toward the front legs 1. Further, as the amount of downward movement of the lower end portion of the push bar 5 increases, the distance between the front end portion and the rear end portion of the bottom cross member 9 increases, so that the distance between the pair of front legs 1 and the pair of The distance between the rear legs 4 is reduced.

一対の座部支持棒１０は、座席ハンモック２３の座部を支持するように前後方向に延びており、その前方領域または中間領域が一対の前脚１に回動可能に連結され、その後端部が一対のスライド部材７に回動可能に連結されている。乳母車の折り畳み動作に伴ってスライド部材７が後脚４上を上方に向かって移動すると、座部支持棒１０は図３において反時計方向に回動し、乳母車の折り畳み状態では、前脚１の内側に沿って位置するようになる。   The pair of seat support rods 10 extend in the front-rear direction so as to support the seat of the seat hammock 23, and a front region or an intermediate region thereof is rotatably connected to the pair of front legs 1, and a rear end portion thereof A pair of slide members 7 are rotatably connected. When the slide member 7 moves upward on the rear leg 4 in accordance with the folding operation of the baby carriage, the seat support bar 10 rotates counterclockwise in FIG. 3, and the inner side of the front leg 1 in the folded state of the baby carriage. It will be located along.

図７および図８に示すように、背面クロス部材８には、乳母車の開状態において第１棒部材８１と第２棒部材８２との交差角度を固定する開状態ロック機構１１が設けられている。この開状態ロック機構１１は、一方端が第２棒部材８２に回動可能に連結された第１リンク棒１２と、一方端が第１棒部材８１に回動可能に連結された第２リンク棒１３と、操作部材１４とを備える。乳母車の開状態においては、第１リンク棒１２と第２リンク棒１３とは思案点を僅かに越えた位置で固定した関係となり、第１棒部材８１と第２棒部材８２との交差角度を固定する。乳母車を折り畳もうとするときには、操作部材１４を手で引き上げて第１リンク棒１２と第２リンク棒１３とを上方に屈曲させた状態となるようにする。   As shown in FIGS. 7 and 8, the back cross member 8 is provided with an open state lock mechanism 11 that fixes the crossing angle between the first bar member 81 and the second bar member 82 when the baby carriage is in the open state. . The open state lock mechanism 11 includes a first link rod 12 having one end rotatably connected to the second rod member 82 and a second link having one end rotatably connected to the first rod member 81. A rod 13 and an operation member 14 are provided. In the opened state of the baby carriage, the first link rod 12 and the second link rod 13 are fixed at a position slightly beyond the thought point, and the crossing angle between the first rod member 81 and the second rod member 82 is determined. Fix it. When the baby carriage is to be folded, the operation member 14 is pulled up by hand so that the first link bar 12 and the second link bar 13 are bent upward.

図３に示すように、前脚１の上端部に固定された連結部材２は、ロックピンを有する操作ボタン２４を有する。押棒５には、少なくとも乳母車の開状態においてロックピンを受入れるロック穴を有している。操作ボタン２４のロックピンと押棒５に設けられたロック穴とによって、乳母車の開状態において前脚に対する押棒の位置を固定する押棒ロック機構が構成される。操作ボタン２４を操作してロックピンとロック穴との係合を解除すれば、押棒５を前脚１に沿ってスライドさせることが可能になる。   As shown in FIG. 3, the connecting member 2 fixed to the upper end of the front leg 1 has an operation button 24 having a lock pin. The push bar 5 has a lock hole for receiving the lock pin at least in the opened state of the baby carriage. The push pin locking mechanism that fixes the position of the push bar with respect to the front leg in the opened state of the baby carriage is configured by the lock pin of the operation button 24 and the lock hole provided in the push bar 5. If the operation button 24 is operated to release the engagement between the lock pin and the lock hole, the push bar 5 can be slid along the front leg 1.

図１に示すように、一対の前脚１の下方部分は、中央部分において屈曲可能な足乗せ部材１５によって連結されている。乳母車の開いた状態では、足乗せ部材１５は幅方向に沿ってほぼ直線的に延在するが、乳母車の折り畳み状態では、足乗せ部材１５はＶ字状に屈曲した形態となる。   As shown in FIG. 1, the lower portions of the pair of front legs 1 are connected by a leg rest member 15 that can be bent at the center portion. In the state where the baby carriage is opened, the footrest member 15 extends substantially linearly along the width direction. However, in the state where the baby carriage is folded, the footrest member 15 is bent in a V shape.

図３から明らかなように、幌１７は、その幅方向両端が一対の連結部材２よりも下方の位置で一対の押棒５に連結保持されている。具体的には、各押棒５は、連結部材２よりも下方の位置に固定された幌支えスリーブ１６を有している。幌１７は、幌支えスリーブ１６に回動可能に保持された幌骨１８、１９と、複数の幌骨間に張り渡された幌布２０とを備える。図示した実施形態の幌１７は、ドーム形状であり、第１幌骨１８と第２幌骨１９とを備える。第１幌骨１８および第２幌骨１９は、乳母車の折り畳み時に幅方向間隔を縮小できるような構造または材質で構成されている。   As is clear from FIG. 3, the hood 17 is connected and held by the pair of push rods 5 at both ends in the width direction below the pair of connecting members 2. Specifically, each push bar 5 has a hood support sleeve 16 fixed at a position lower than the connecting member 2. The hood 17 includes hood bones 18 and 19 rotatably held by the hood support sleeve 16 and a hood cloth 20 stretched between a plurality of hood bones. The hood 17 of the illustrated embodiment has a dome shape and includes a first hood bone 18 and a second hood bone 19. The first hood bone 18 and the second hood bone 19 are made of a structure or material that can reduce the interval in the width direction when the baby carriage is folded.

図示した実施形態の幌１７は、左右の側面に、第１幌骨８１と第２幌骨８２との開き角度を固定するための開き角度固定手段２１を備える。この開き角度固定手段２１は、一端が第１幌骨１８に連結された第１リンクプレート２１ａと、一端が第２幌骨１９に連結された第２リンクプレート２１ｂと、幌の折り畳みのために第１および第２リンクプレート２１ａ，２１ｂを屈曲した位置関係にもたらすための操作つまみ２１ｃとを備える。   The hood 17 of the illustrated embodiment is provided with opening angle fixing means 21 for fixing the opening angle between the first hood bone 81 and the second hood bone 82 on the left and right side surfaces. The opening angle fixing means 21 includes a first link plate 21a having one end connected to the first hood bone 18, a second link plate 21b having one end connected to the second hood bone 19, and for folding the hood. And an operation knob 21c for bringing the first and second link plates 21a and 21b into a bent positional relationship.

幌１７は、その両端部が一対の押棒５に固定された幌支えスリーブ１６に支持されているので、乳母車の折り畳み動作に伴って一対の押棒が下降すると、それに追従して幌１７も下方に移動する。図４に示す乳母車の折り畳み状態においては、幌１７も折り畳むようにする。このように図示した実施形態では、幌１７を乳母車車体に取り付けた状態のままでも、幌１７が押棒５と共に下降するので乳母車の折り畳み状態の高さ寸法を縮小することができる。   Since both ends of the hood 17 are supported by a hood support sleeve 16 fixed to the pair of push rods 5, when the pair of push rods descends along with the folding operation of the baby carriage, the hood 17 also follows downward. Moving. In the folded state of the baby carriage shown in FIG. 4, the hood 17 is also folded. Thus, in the illustrated embodiment, even when the hood 17 is attached to the baby carriage body, the hood 17 is lowered together with the push bar 5, so that the height dimension of the baby carriage in the folded state can be reduced.

実公昭４５−１３５４９号公報や特公平７−１２８２４号公報に開示された乳母車では、一対の押棒の上方端は自由端となっているので、押棒のある程度のぐらつきは避けられない。そのような押棒のぐらつきは、一対の押棒の上方端を連結するハンドル部材を設けることによって小さくすることができる。その場合、乳母車の折畳み状態における幅方向寸法を小さくするために、ハンドル部材を複数の部材で構成し、各部材間を回動可能に連結することが一般的である。このような構造であれば、ハンドル部材が各部材間の連結部分で屈曲することにより、一対の押棒の間隔が小さくなる。しかしながら、そのような屈曲可能な連結部分が存在すると、乳母車の開状態においてその連結部分においてがたつきが生じるので、十分な剛性のある車体フレームとはならない。   In the stroller disclosed in Japanese Utility Model Publication No. 45-13549 and Japanese Patent Publication No. 7-12824, the upper ends of the pair of push rods are free ends. Such wobbling of the push rods can be reduced by providing a handle member that connects the upper ends of the pair of push rods. In this case, in order to reduce the dimension in the width direction of the baby carriage in the folded state, it is general that the handle member is composed of a plurality of members and the members are rotatably connected. With such a structure, the distance between the pair of push rods is reduced by bending the handle member at the connecting portion between the members. However, when such a bendable connecting portion exists, rattling occurs in the connecting portion in the opened state of the baby carriage, so that the vehicle body frame does not have a sufficient rigidity.

そこで、本発明の実施形態では、開状態における乳母車の車体フレームの剛性を高めるために、一対の押棒５の上方端を連結するハンドル部材６の構造に特徴を持たせている。すなわち、図示した実施形態では、ハンドル部材６を構成する第１ハンドルアーム６１と第２ハンドルアーム６２とを連結機構によって分離可能に連結している。図９〜図１２を参照して、この構造について詳しく説明する。   Therefore, in the embodiment of the present invention, the structure of the handle member 6 that connects the upper ends of the pair of push rods 5 is characterized in order to increase the rigidity of the body frame of the baby carriage in the open state. In other words, in the illustrated embodiment, the first handle arm 61 and the second handle arm 62 constituting the handle member 6 are detachably connected by a connecting mechanism. This structure will be described in detail with reference to FIGS.

図６および図１１に示すように、第１ハンドルアーム６１の内方端部は厚みを減じた薄肉部分を含み、第２ハンドルアーム６２の内方端部も厚みを減じた薄肉部分を含む。両者の薄肉部分が、連結機構によって分離可能に連結される。   As shown in FIGS. 6 and 11, the inner end portion of the first handle arm 61 includes a thin portion with a reduced thickness, and the inner end portion of the second handle arm 62 also includes a thin portion with a reduced thickness. The thin portions of both are detachably connected by a connecting mechanism.

連結機構は、第１ハンドルアーム６１の内方端部に固定された固定軸６３と、固定軸６３を受け入れるように第２ハンドルアーム６２の内方端部に形成された軸受入れ空間６４と、ロック部材６５とを備える。固定軸６３は、乳母車の後方に向かって突出しており、直径の大きな頭部６３ａと、直径の小さな首部６３ｂとを含む。   The coupling mechanism includes a fixed shaft 63 fixed to the inner end portion of the first handle arm 61, a bearing insertion space 64 formed at the inner end portion of the second handle arm 62 so as to receive the fixed shaft 63, and A locking member 65. The fixed shaft 63 protrudes toward the rear of the baby carriage and includes a head portion 63a having a large diameter and a neck portion 63b having a small diameter.

図９および図１０に示すように、ロック部材６５は、上下方向に長い扁平な板状の形態をしており、その中央部分に貫通穴６６を有している。貫通穴６６は、上方に位置する直径の大きな大径穴６６ａと、大径穴６６ａの下方部分に重なるように形成された直径の小さな小径穴６６ｂとを有する。大径穴６６ａの直径は、固定軸６３の頭部６３ａの直径よりも大きく、小径穴６６ｂの直径は、固定軸６３の頭部６３ａの直径よりも小さく、首部６３ｂの直径よりも僅かに大きい。   As shown in FIGS. 9 and 10, the lock member 65 has a flat plate shape that is long in the up-down direction, and has a through hole 66 at the center thereof. The through-hole 66 has a large-diameter hole 66a having a large diameter located above and a small-diameter hole 66b having a small diameter formed so as to overlap with a lower portion of the large-diameter hole 66a. The diameter of the large-diameter hole 66a is larger than the diameter of the head 63a of the fixed shaft 63, and the diameter of the small-diameter hole 66b is smaller than the diameter of the head 63a of the fixed shaft 63 and slightly larger than the diameter of the neck 63b. .

ロック部材６５は、第２ハンドルアーム６２の軸受入れ空間６４内に位置するようにされる。ロック部材６５の上端には操作部材６７が固定される。この操作部材６７は、第２ハンドルアーム６２の内方端部の上面から上に露出して突出している。また、図９に示すように、ロック部材６５の下端と第２ハンドルアーム６２の底壁部との間には、ロック部材６５を常に上方に向かって移動するように付勢する付勢部材６８が配置されている。図示した実施形態では、付勢部材６８はコイルばねである。   The lock member 65 is positioned in the bearing insertion space 64 of the second handle arm 62. An operation member 67 is fixed to the upper end of the lock member 65. The operation member 67 is exposed and protrudes upward from the upper surface of the inner end portion of the second handle arm 62. Further, as shown in FIG. 9, a biasing member 68 that biases the lock member 65 to always move upward between the lower end of the lock member 65 and the bottom wall portion of the second handle arm 62. Is arranged. In the illustrated embodiment, the biasing member 68 is a coil spring.

図９に示す状態では、第１ハンドルアーム６１に固定された固定軸６３の首部６３ｂが、第２ハンドルアーム６２に支持されたロック部材６５の小径穴６６ｂに嵌っており、この係合状態が付勢部材６８の付勢力によって維持されている。ロック部材６５は、固定軸６３の頭部６３ａと第１ハンドルアーム６１とによって挟まれているので、第１ハンドルアーム６１と第２ハンドルアーム６２とは連結固定された状態となる。この状態は、乳母車の開状態に対応する。   In the state shown in FIG. 9, the neck portion 63 b of the fixed shaft 63 fixed to the first handle arm 61 is fitted in the small diameter hole 66 b of the lock member 65 supported by the second handle arm 62, and this engaged state is It is maintained by the urging force of the urging member 68. Since the lock member 65 is sandwiched between the head portion 63a of the fixed shaft 63 and the first handle arm 61, the first handle arm 61 and the second handle arm 62 are connected and fixed. This state corresponds to the opened state of the baby carriage.

乳母車を折り畳もうとするときには、操作部材６７を下方に押してロック部材６５を下方位置にもたらす。その位置では、ロック部材６５の大径穴６６ａが固定軸６３の頭部６３ａと整列した関係になる。したがって、第１ハンドルアーム６１の内方端部を第２ハンドルアーム６２の内方端部に対して相対的に前方に動かせば、固定軸６３の頭部６３ａがロック部材６５の大径穴６６ａを通過し、第１ハンドルアーム６１と第２ハンドルアーム６２とが分離する。図１２は、乳母車の折畳み状態において、第１ハンドルアーム６１と第２ハンドルアーム６２とが分離している状態を示している。一対の押棒５の間隔が小さくなっているので、第１ハンドルアーム６１は図において左方向に移動し、第２ハンドルアームは右方向に移動している。   When the baby carriage is to be folded, the operation member 67 is pushed downward to bring the lock member 65 to the lower position. At that position, the large-diameter hole 66 a of the lock member 65 is aligned with the head 63 a of the fixed shaft 63. Therefore, if the inner end portion of the first handle arm 61 is moved forward relative to the inner end portion of the second handle arm 62, the head portion 63a of the fixed shaft 63 is moved to the large-diameter hole 66a of the lock member 65. The first handle arm 61 and the second handle arm 62 are separated from each other. FIG. 12 shows a state where the first handle arm 61 and the second handle arm 62 are separated in the folded state of the baby carriage. Since the distance between the pair of push rods 5 is small, the first handle arm 61 moves leftward in the figure, and the second handle arm moves rightward.

乳母車の折り畳み操作を順を追って記載すると、まずハンドル部材６の中央にある操作部材６７を下方に押し込んで第１ハンドルアーム６１と第２ハンドルアーム６２とを離し、次に背面クロス部材８に取り付けられている開状態ロック機構１１の操作部材１４を上方に引き上げる。次に、連結部材２に支持されている操作ボタン２４を操作してロックピンとロック穴との係合を解除した後に一対の押棒５を下方に移動させる。   When the operation of folding the baby carriage is described in order, first, the operation member 67 at the center of the handle member 6 is pushed downward to separate the first handle arm 61 and the second handle arm 62 and then attached to the back cross member 8. The operating member 14 of the open state lock mechanism 11 is pulled upward. Next, after operating the operation button 24 supported by the connecting member 2 to release the engagement between the lock pin and the lock hole, the pair of push rods 5 are moved downward.

なお、図示した本発明の実施形態では、背面クロス部材および底面クロス部材が、図１３に示すように２つの棒部材をまさに「Ｘ字状に交差」するように構成した。しかしながら、本願発明における「Ｘ字状に交差」とは、図１３に示したような典型的な形態のみならず、図１４に示すようにＸ字状交差部を複数備える形態のものも含むものとして理解しなければならない。   In the illustrated embodiment of the present invention, the back cross member and the bottom cross member are configured to exactly “cross the two X members” as shown in FIG. However, the “X-shaped intersection” in the present invention includes not only a typical form as shown in FIG. 13 but also a form having a plurality of X-shaped intersections as shown in FIG. Must be understood as.

さらに、図示した実施形態では、一対の押棒の上方端が連結機構を介して分離可能に連結されるものであったが、他の実施形態として、一対の押棒が連結されること無く常に分離した構造のものであっても良い。   Furthermore, in the illustrated embodiment, the upper ends of the pair of push rods are detachably connected via a connecting mechanism. However, as another embodiment, the pair of push rods are always separated without being connected. It may be of a structure.

この発明は、乳母車や荷物運搬車などを含む広い意味の手押し車にも適用可能である。   The present invention can also be applied to a broadly-equipped handcart including a baby carriage and a luggage carrier.

図１５および図１６は、この発明の他の実施形態を示す側面図であり、図１５は手押し車の開状態を示し、図１６は手押し車の折畳み状態を示している。手押し車は、前後方向および幅方向のサイズが縮小して折り畳まれるものである。   15 and 16 are side views showing another embodiment of the present invention. FIG. 15 shows an opened state of the handcart, and FIG. 16 shows a folded state of the handcart. The wheelbarrow is folded by reducing the size in the front-rear direction and the width direction.

図１５および図１６に示す手押し車は、平行な位置関係で上下方向に延びる一対の第１縦フレーム部材１０１と、平行な位置関係で上下方向に延び、一対の第１縦フレーム部材１０１の上方部に連結部材１０５を介して回動可能に連結された一対の第２縦フレーム部材１０２と、第１クロス部材１０３と、一対のサイドフレーム部材１０４とを備える。各第１縦フレーム部材１０１の下端には後輪１０８が取付けられ、各第２縦フレーム部材１０２の下端には前輪１０７が取付けられている。   15 and FIG. 16 is a pair of first vertical frame members 101 extending in the vertical direction with a parallel positional relationship, and a pair of first vertical frame members 101 extending in the vertical direction with a parallel positional relationship. A pair of second vertical frame members 102, a first cross member 103, and a pair of side frame members 104, which are rotatably connected to the part via a connecting member 105. A rear wheel 108 is attached to the lower end of each first vertical frame member 101, and a front wheel 107 is attached to the lower end of each second vertical frame member 102.

第１クロス部材１０３は、前述の実施例と同様に、Ｘ字状に交差する２つの棒部材を含む。２つの棒部材は、その上方端部が一対の第１縦フレーム部材１０１に一対のスライド部材１０６を介してスライド可能に支持され、その下方端部が一対の第１縦フレー部材１０１の下方部分に回動可能に連結されている。   The first cross member 103 includes two bar members that intersect in an X shape, as in the above-described embodiment. The upper end portions of the two rod members are slidably supported by the pair of first vertical frame members 101 via the pair of slide members 106, and the lower end portions thereof are lower portions of the pair of first vertical frame members 101. It is connected to the pivotable.

一対のサイドフレーム部材１０４は、平行な関係で前後方向に延び、その一方端部が第１クロス部材１０３の上方端部に一対のスライド部材１０６を介して回動可能に連結され、その他方端部が一対の第２縦フレーム部材１０２に回動可能に連結されている。   The pair of side frame members 104 extend in the front-rear direction in a parallel relationship, and one end thereof is rotatably connected to the upper end of the first cross member 103 via a pair of slide members 106, and the other end. The portion is rotatably connected to the pair of second vertical frame members 102.

手押し車を折り畳む際には、一対のスライド部材１０６を上方に移動させるように操作する。スライド部材１０６の上方への移動に伴って、第１クロス部材１０３の幅寸法が縮小し、一対の第１縦フレーム部材１０１の間隔が小さくなる。また、一対のサイドフレーム部材１０４の後方端部がスライド部材１０６とともに上方に移動するので、一対の第２縦フレーム部材１０２の下方部分はサイドフレーム部材１０４によって一対の第１縦フレーム部材１０１の下方部分に近づくように引き寄せられる。こうして、手押し車の折畳み状態においては、前後方向および幅方向のサイズが縮小する。   When the handcart is folded, the pair of slide members 106 are operated to move upward. As the slide member 106 moves upward, the width dimension of the first cross member 103 decreases, and the interval between the pair of first vertical frame members 101 decreases. Further, since the rear end portions of the pair of side frame members 104 move upward together with the slide member 106, the lower portions of the pair of second vertical frame members 102 are below the pair of first vertical frame members 101 by the side frame members 104. It is drawn closer to the part. Thus, in the folded state of the handcart, the sizes in the front-rear direction and the width direction are reduced.

図１５および図１６に示した実施形態において、前述の実施形態と同様に、第２クロス部材を設けるようにしてもよい。第２クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その一方端部が一対の第２縦フレーム部材１０２にスライド可能に支持され、その他方端部が一対の第１縦フレーム部材１０１に回動可能に連結される。   In the embodiment shown in FIGS. 15 and 16, a second cross member may be provided as in the above-described embodiment. The second cross member includes two bar members intersecting in an X shape, one end of which is slidably supported by the pair of second vertical frame members 102, and the other end is a pair of first vertical frames. The member 101 is rotatably connected.

さらに、手押し車は、前述の実施形態と同様に、一対の第３縦フレーム部材を備えるものであっても良い。一対の第３縦フレーム部材は、一対の第２縦フレーム部材に部分的に重なって上下方向に延び、その下方端部が第２クロス部材に回動可能に連結される。この実施形態では、手押し車の折畳み動作の際、第３縦フレーム部材の下端部と第２クロス部材の一方端部とが共に第２縦フレーム部材１０２に沿って下方にスライド移動する。   Furthermore, the handcart may be provided with a pair of third vertical frame members as in the above-described embodiment. The pair of third vertical frame members partially overlap the pair of second vertical frame members and extend in the vertical direction, and the lower ends thereof are rotatably connected to the second cross member. In this embodiment, during the folding operation of the handcart, both the lower end portion of the third vertical frame member and the one end portion of the second cross member slide down along the second vertical frame member 102.

図１５および図１６に示した実施形態の変形例として、一対のサイドフレーム部材１０４を省略し、第２クロス部材を設けるようにしても良い。第２クロス部材は、Ｘ字状に交差する２つの棒部材を含み、その一方端部が一対の第２縦フレーム部材１０２にスライド可能に支持され、その他方端部が一対の第１縦フレーム部材１０１に回動可能に連結されている。   As a modification of the embodiment shown in FIGS. 15 and 16, the pair of side frame members 104 may be omitted and a second cross member may be provided. The second cross member includes two bar members intersecting in an X shape, one end of which is slidably supported by the pair of second vertical frame members 102, and the other end is a pair of first vertical frames. The member 101 is rotatably connected.

以上、図面を参照してこの発明の実施形態を説明したが、この発明は、図示した実施形態のものに限定されない。図示した実施形態に対して、この発明と同一の範囲内において、あるいは均等の範囲内において、種々の修正や変形を加えることが可能である。   As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

この発明は、前後方向および幅方向のサイズが縮小して折り畳まれる手押し車として、あるいは高さ方向および幅方向のサイズが縮小して折り畳まれる折畳式乳母車として有利に利用され得る。   INDUSTRIAL APPLICABILITY The present invention can be advantageously used as a handcart that can be folded by reducing the size in the front-rear direction and the width direction, or as a folding baby carriage that can be folded by reducing the size in the height direction and the width direction.

本発明の一実施形態の車体フレームを示す斜視図である。It is a perspective view which shows the vehicle body frame of one Embodiment of this invention. 本発明の一実施形態の乳母車を示す斜視図である。It is a perspective view which shows the baby carriage of one Embodiment of this invention. 本発明の一実施形態の幌付車体フレームの側面図である。It is a side view of the body frame with a hood of one embodiment of the present invention. 本発明の一実施形態の幌付車体フレームの折り畳み状態の側面図である。It is a side view of the folded state of the body frame with a hood of one Embodiment of this invention. 一対の押棒およびハンドル部材を背面側から見た図である。It is the figure which looked at a pair of push rod and a handle member from the back side. ハンドル部材の平面図である。It is a top view of a handle member. 一対の後脚および背面クロス部材を背面側から見た図である。It is the figure which looked at a pair of rear legs and a back cross member from the back side. 乳母車の折畳み状態における一対の後脚および背面クロス部材を背面側から見た図である。It is the figure which looked at a pair of rear legs and back cross member in the folded state of the baby carriage from the back side. 第１ハンドルアームと第２ハンドルアームとを分離可能に連結する連結機構の要部を正面側から見た図である。It is the figure which looked at the principal part of the connection mechanism which connects a 1st handle arm and a 2nd handle arm so that separation was possible from the front side. ロック部材の正面図である。It is a front view of a locking member. 連結機構を上方から見た断面図である。It is sectional drawing which looked at the connection mechanism from the upper part. 第１ハンドルアームと第２ハンドルアームとが離れている状態を示す図である。It is a figure showing the state where the 1st handle arm and the 2nd handle arm are separated. 「Ｘ字状に交差」の一形態を図解的に示す図である。It is a figure which shows one form of "cross | cross in X shape" illustratively. 「Ｘ字状に交差」の他の形態を図解的に示す図である。It is a figure which shows the other form of "cross | cross in X shape" illustratively. 本発明の他の実施形態の手押し車の開状態を示す側面図である。It is a side view which shows the open state of the handcart of other embodiment of this invention. 本発明の他の実施形態の手押し車の折畳み状態を示す側面図である。It is a side view which shows the folding state of the handcart of other embodiment of this invention.

符号の説明Explanation of symbols

１ 前脚、２ 連結部材、２ａ 筒状体、２ｂ 張出し部、３ 案内スリーブ、３ａ 筒状体、４ 後脚、５ 押棒、６ ハンドル部材、６１ 第１ハンドルアーム、６２ 第２ハンドルアーム、６３ 固定軸、６３ａ 頭部、６３ｂ 首部、６４ 軸受入れ空間、６５ ロック部材、６６ 貫通穴、６６ａ 大径穴、６６ｂ 小径穴、６７ 操作部材、６８ ばね、７ スライド部材、８ 背面クロス部材、８１ 第１棒部材、８２ 第２棒部材、９ 底面クロス部材、９１ 第１棒部材、９２ 第２棒部材、１０ 座部支持棒、１１ 開状態ロック機構、１２ 第１リンク棒、１３ 第２リンク棒、１４ 操作部材、１５ 足乗せ部材、１６ 幌支えスリーブ、１７ 幌、１８ 第１幌骨、１９ 第２幌骨、２０ 幌布、２１ 開き角度固定手段、２１ａ 第１リンクプレート、２１ｂ 第２リンクプレート、２１ｃ 操作つまみ、２２ 物品収納袋、２３ 座席ハンモック、２４ 操作ボタン、１０１ 第１縦フレーム部材、１０２ 第２縦フレーム部材、１０３ 第１クロス部材、１０４ サイドフレーム部材、１０５ 連結部材、１０６ スライド部材、１０７ 前輪、１０８ 後輪。   DESCRIPTION OF SYMBOLS 1 Front leg, 2 connection member, 2a cylindrical body, 2b overhang | projection part, 3 guide sleeve, 3a cylindrical body, 4 rear leg, 5 push rod, 6 handle member, 61 1st handle arm, 62 2nd handle arm, 63 fixation Shaft, 63a head, 63b neck, 64 bearing space, 65 lock member, 66 through hole, 66a large diameter hole, 66b small diameter hole, 67 operation member, 68 spring, 7 slide member, 8 back cross member, 81 1st Rod member, 82 Second rod member, 9 Bottom cross member, 91 First rod member, 92 Second rod member, 10 Seat support rod, 11 Open state lock mechanism, 12 First link rod, 13 Second link rod, 14 operation member, 15 footrest member, 16 hood support sleeve, 17 hood, 18 first hood bone, 19 second hood bone, 20 hood cloth, 21 opening angle fixing means, 21a first link Plate, 21b second link plate, 21c operation knob, 22 article storage bag, 23 seat hammock, 24 operation button, 101 first vertical frame member, 102 second vertical frame member, 103 first cross member, 104 side frame member, 105 connecting member, 106 sliding member, 107 front wheel, 108 rear wheel.

Claims (10)

前後方向および幅方向のサイズが縮小して折り畳まれる折畳式手押し車であって、
平行な位置関係で上下方向に延びる一対の第１縦フレーム部材と、
平行な位置関係で上下方向に延び、前記一対の第１縦フレーム部材の上方部に回動可能に連結された一対の第２縦フレーム部材と、
Ｘ字状に交差する２つの棒部材を含み、その上方端部が前記一対の第１縦フレーム部材にスライド可能に支持され、その下方端部が前記一対の第１縦フレーム部材に回動可能に連結された第１クロス部材と、
平行な位置関係で前後方向に延び、その一方端部が前記第１クロス部材の上方端部に回動可能に連結され、その他方端部が前記一対の第２縦フレーム部材に回動可能に連結された一対のサイドフレーム部材とを備える、折畳式手押し車。 A foldable wheelbarrow that can be folded by reducing the size in the front-rear direction and the width direction,
A pair of first vertical frame members extending in the vertical direction in a parallel positional relationship;
A pair of second vertical frame members extending in the vertical direction in a parallel positional relationship and rotatably connected to upper portions of the pair of first vertical frame members;
It includes two bar members intersecting in an X shape, and its upper end is slidably supported by the pair of first vertical frame members, and its lower end is rotatable by the pair of first vertical frame members A first cross member connected to
Extending in the front-rear direction in a parallel positional relationship, one end of the first cross member is pivotally connected to the upper end of the first cross member, and the other end is pivotable to the pair of second vertical frame members. A foldable handcart comprising a pair of connected side frame members. Ｘ字状に交差する２つの棒部材を含み、その一方端部が前記一対の第２縦フレーム部材にスライド可能に支持され、その他方端部が前記一対の第１縦フレーム部材に回動可能に連結された第２クロス部材をさらに備える、請求項１に記載の折畳式手押し車。 It includes two bar members that intersect in an X shape, one end of which is slidably supported by the pair of second vertical frame members, and the other end is rotatable by the pair of first vertical frame members The foldable handcart according to claim 1, further comprising a second cross member coupled to. 前記一対の第２縦フレーム部材に部分的に重なって上下方向に延び、その下方端部が前記第２クロス部材に回動可能に連結された一対の第３縦フレーム部材を備える、請求項２に記載の折畳式手押し車。 3. A pair of third vertical frame members that partially overlap the pair of second vertical frame members and extend in the vertical direction, and whose lower end portions are rotatably connected to the second cross member. Folding wheelbarrow as described in 前後方向および幅方向のサイズが縮小して折り畳まれる折畳式手押し車であって、
平行な位置関係で上下方向に延びる一対の第１縦フレーム部材と、
平行な位置関係で上下方向に延び、前記一対の第１縦フレーム部材の上方部に回動可能に連結された一対の第２縦フレーム部材と、
Ｘ字状に交差する２つの棒部材を含み、その上方端部が前記一対の第１縦フレーム部材にスライド可能に支持され、その下方端部が前記一対の第１縦フレーム部材に回動可能に連結された第１クロス部材と、
Ｘ字状に交差する２つの棒部材を含み、その一方端部が前記一対の第２縦フレーム部材にスライド可能に支持され、その他方端部が前記一対の第１縦フレーム部材に回動可能に連結された第２クロス部材とを備える、折畳式手押し車。 A foldable wheelbarrow that can be folded by reducing the size in the front-rear direction and the width direction,
A pair of first vertical frame members extending in the vertical direction in a parallel positional relationship;
A pair of second vertical frame members extending in the vertical direction in a parallel positional relationship and rotatably connected to upper portions of the pair of first vertical frame members;
It includes two bar members intersecting in an X shape, and its upper end is slidably supported by the pair of first vertical frame members, and its lower end is rotatable by the pair of first vertical frame members A first cross member connected to
It includes two bar members that intersect in an X shape, one end of which is slidably supported by the pair of second vertical frame members, and the other end is rotatable by the pair of first vertical frame members And a second cross member connected to the folding wheelbarrow. 高さ方向および幅方向のサイズが縮小して折り畳まれる折畳式乳母車であって、
上下方向に延びその下端部に前輪を有する一対の前脚と、
前記一対の前脚の上端部に固定された一対の連結部材と、
前記一対の前脚の中間領域に固定された一対の案内スリーブと、
上下方向に延びその下端部に後輪を有し、その上端部が前記連結部材に回動可能に連結された一対の後脚と、
前記一対の前脚に部分的に重なって上下方向に延び、前記一対の連結部材および前記一対の案内スリーブにスライド可能に保持された一対の押棒と、
前記一対の後脚の上方領域上をスライド可能に設けられた一対のスライド部材と、
Ｘ字状に交差する２つの棒部材を含み、その上端部が前記一対のスライド部材に回動可能に連結され、その下端部が前記一対の後脚の下方領域に回動可能に連結された背面クロス部材と、
Ｘ字状に交差する２つの棒部材を含み、その前端部が前記一対の押棒の下端部に回動可能に連結され、その後端部が前記一対の後脚の中間領域に回動可能に連結された底面クロス部材とを備える、折畳式乳母車。 A foldable baby carriage that is folded in a reduced size in the height and width directions,
A pair of front legs extending in the vertical direction and having a front wheel at the lower end thereof;
A pair of connecting members fixed to upper ends of the pair of front legs;
A pair of guide sleeves fixed to an intermediate region of the pair of front legs;
A pair of rear legs extending in the vertical direction and having a rear wheel at the lower end thereof, the upper end of which is rotatably connected to the connecting member;
A pair of push rods partially extending on the pair of front legs and extending in the vertical direction, and slidably held by the pair of connecting members and the pair of guide sleeves;
A pair of slide members slidably provided on the upper region of the pair of rear legs;
Two rod members intersecting in an X shape are included, the upper end portions thereof are rotatably connected to the pair of slide members, and the lower end portions thereof are rotatably connected to the lower region of the pair of rear legs. A back cross member;
It includes two bar members that intersect in an X shape, and its front end is rotatably connected to the lower ends of the pair of push rods, and its rear end is rotatably connected to the middle region of the pair of rear legs A foldable baby carriage provided with a bottom cross member. 前後方向に延び、その前方領域または中間領域が前記一対の前脚に回動可能に連結され、その後端部が前記一対のスライド部材に回動可能に連結された一対の支持棒を備える、請求項５に記載の折畳式乳母車。 A pair of support rods extending in the front-rear direction, having a front region or an intermediate region thereof rotatably connected to the pair of front legs and a rear end portion rotatably connected to the pair of slide members. 5. The foldable baby carriage according to 5. 当該乳母車の開状態において、前記背面クロス部材を構成する２つの棒部材の交差角度を固定する開状態ロック機構を備える、請求項５または６に記載の折畳式乳母車。 The foldable baby carriage according to claim 5 or 6, further comprising an open state lock mechanism that fixes an intersecting angle of two bar members constituting the back cross member in the open state of the baby carriage. 当該乳母車の開状態において、前記前脚に対する前記押棒の位置を固定する押棒ロック機構を備える、請求項５〜７のいずれかに記載の折畳式乳母車。 The foldable baby carriage according to any one of claims 5 to 7, further comprising a push bar locking mechanism that fixes a position of the push bar with respect to the front leg in the opened state of the baby carriage. 逆Ｕ字状の形態を有し、前記一対の押棒の上方端を連結するハンドル部材を備え、
前記ハンドル部材は、
Ｌ字状の形態を有し、その一方端部が前記一方の押棒の上方端に固定された第１ハンドルアームと、
前記第１ハンドルアームと対称的なＬ字状の形態を有し、その一方端部が前記他方の押棒の上方端に固定された第２ハンドルアームと、
前記第１ハンドルアームの他方端部と、前記第２ハンドルアームの他方端部とを分離可能に連結する連結機構とを含む、請求項５〜８のいずれかに記載の折畳式乳母車。 A handle member having an inverted U-shape and connecting the upper ends of the pair of push rods,
The handle member is
A first handle arm having an L-shaped configuration, one end of which is fixed to the upper end of the one push bar;
A second handle arm having an L-shaped configuration symmetrical to the first handle arm, one end of which is fixed to the upper end of the other push rod;
The foldable baby carriage according to any one of claims 5 to 8, further comprising a connecting mechanism that detachably connects the other end of the first handle arm and the other end of the second handle arm. その幅方向両端が、前記一対の連結部材よりも下方の位置で、前記一対の押棒に連結保持された幌を備える、請求項５〜９のいずれかに記載の折畳式乳母車。
The foldable baby carriage according to any one of claims 5 to 9, wherein both ends in the width direction include hoods connected and held by the pair of push rods at positions below the pair of connecting members.
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US12/288,068 US8066300B2 (en) 2007-10-22 2008-10-15 Foldable pushcart and foldable baby carriage
EP08018152A EP2052943B1 (en) 2007-10-22 2008-10-16 Foldable pushcart and foldable baby carriage
DE200860004289 DE602008004289D1 (en) 2007-10-22 2008-10-16 Collapsible sports car and collapsible stroller
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