JP6043214B2

JP6043214B2 - Mobile lifting chair

Info

Publication number: JP6043214B2
Application number: JP2013038019A
Authority: JP
Inventors: 益男片田
Original assignee: トーヨーベンディング株式会社
Priority date: 2013-02-27
Filing date: 2013-02-27
Publication date: 2016-12-14
Anticipated expiration: 2033-02-27
Also published as: JP2014161682A

Description

本発明は、座部や背部が昇降し、且つ、ベッドサイド等に自由に移動や固定可能な移動昇降椅子に関するものである。 The present invention relates to a movable elevating chair in which a seat portion and a back portion are raised and lowered and can be freely moved and fixed to a bedside or the like.

従来より、足腰の弱い老人（高齢者）や足が不自由な人が、立ち上がったり座ったりし易いように座部及び背部（背もたれ）が昇降する昇降椅子がある。
これらの昇降椅子には、例えば、床に載置される支持体（フレーム）に、椅子本体を電気モータにて昇降可能に設けたものを特許文献１、特許文献２等として提案されている。
また、病院や養護施設の床頭台においては、４個のキャスターを一括して操作する機構をすでに本出願人によって特許文献３として提案されている。 2. Description of the Related Art Conventionally, there are lifting chairs in which a seat and a back (back) are raised and lowered so that an elderly person (elderly person) with weak legs or a person with a foot disability can easily stand up or sit.
As these lifting chairs, for example, Patent Document 1, Patent Document 2 and the like have been proposed in which a chair (frame) placed on the floor is provided with a chair body that can be lifted and lowered by an electric motor.
In addition, a mechanism for collectively operating four casters has already been proposed by the present applicant as Patent Document 3 in the floor of a hospital or nursing home.

特開２００１−５７９１９号公報JP 2001-57919 A 特開２００７−６８９２０号公報JP 2007-68720 A 特開２０１０−１１５４４５号公報JP 2010-115445 A

しかしながら、前述した特許文献１、２の昇降椅子は、移動昇降椅子の基部を床Ｆに固定するもので、昇降椅子を容易に移動できないといった問題点があった。
本発明の課題は、上述した問題点に鑑みてなされたもので、昇降椅子の移動が簡単で、所定位置の床Ｆに簡単に固定することができ、且つ、ベッド上に座部が配置でき被介護者の移動が簡単で、かつ、収納に場所を余り占用されない移動昇降椅子を提供しようとするものである。 However, the above-described lifting chairs of Patent Documents 1 and 2 fix the base of the movable lifting chair to the floor F and have a problem that the lifting chair cannot be easily moved.
An object of the present invention has been made in view of the above-described problems. The lifting chair is easy to move, can be easily fixed to the floor F at a predetermined position, and the seat can be arranged on the bed. It is an object of the present invention to provide a movable lifting chair that is easy for a cared person to move and does not occupy much space for storage.

上記課題を解決するために、請求項１の発明は、昇降する座部を有する椅子部と該椅子部を支持する移動基部からなる移動昇降椅子であって、該移動基部は左右に対向する一対の基部枠体からなり、それぞれの基部枠体の底部には、それぞれに複数のキャスターを設けて該キャスターの少なくとも４個のキャスターを一括してロック及びロック解除する操作部及び操作レバーを移動基部から上方に延びたスライド柱で椅子部の背もたれ部の外側近傍に設け、前記一対の基部枠体は２段の段差を設け、前方の座部の下に位置する前枠体は高さを低くすると共に、その先端近傍に高さの低いキャスターを配置したことを特徴とする移動昇降椅子である。
請求項２の発明は、請求項１に記載の移動昇降椅子であって、前記一対の基部枠体は前方での距離は広く後方での距離は狭くして、他の移動昇降椅子の一部を重ねて収納できるようにしたことを特徴とする。
請求項３の発明は、請求項２に記載の移動昇降椅子であって、前記一対の前枠体は前方には左右の掛け渡したフットレストを設け、該フットレストは後方に折りたためることを特徴とする。
In order to solve the above-mentioned problems, the invention of claim 1 is a movable elevating chair comprising a chair portion having a seat portion that moves up and down and a moving base portion that supports the chair portion, and the moving base portion is a pair facing left and right. The base frame is provided with a plurality of casters at the bottom of each base frame, and at least four casters of the caster are collectively locked and unlocked by operating parts and operating levers. It is provided in the vicinity of the outside of the backrest part of the chair part with a slide column extending upward from the base part, the pair of base frame bodies are provided with two steps, and the front frame body located under the front seat part has a low height. In addition , the movable elevating chair is characterized in that a caster having a low height is disposed in the vicinity of the tip thereof .
According to a second aspect of the invention, a mobile lifting chair according to claim 1, wherein the pair of the base frame is made narrower in the distance behind widely distance in front, some of the other mobile lift chairs characterized in that to be able to retract and overlapping a.
The invention according to claim 3, a mobile lifting chair according to claim 2, wherein the pair of front frame body footrest passed over right and left is provided in front, the Rukoto because the footrest is folded backwards Features.

本発明の請求項１の移動昇降椅子によれば、移動昇降椅子の座部に人を座らせたままで移動でき、所望の場所で操作レバーを挙げて、キャスターを一括してロック解除して簡単に移動することができ、目的の所定位置でキャスターの操作レバーを手から離せば、自動的に複数のキャスターを一括してロックして移動昇降椅子を所望の床Ｆに簡単に固定することができる。
また、移動昇降椅子が移動と椅子部の昇降が容易であるから、座部をベッド上等に簡単に配置することができるので、座部に座った被介護者を簡単にベッドに移すことができ、逆に、ベッド上の被介護者を移動昇降椅子の座部に座らせることができる。
更に、一対の基部枠体は前方の座部の下に位置部分は高さを低くしたので、ベッド底が床Ｆに近くても、基部枠体の先端をベッド下に進入させることができ、大概の座部をベッド上等に配置することができるので、被介護者の椅子からベッドに移動、ベッドから椅子の移動が多くの人手を要しないで可能となる。
更に、請求項２、３の移動昇降椅子の発明によれば、一対の基部枠体は前方での距離は広く後方での距離は狭くし、フットレストを設けた場合は、フットレストは後方に折りたたむことで、他の移動昇降椅子の一部を重ねての収納でき、収納場所を小さくすることができる。 According to the movable lifting chair of the first aspect of the present invention, it is possible to move while a person is sitting on the seat of the movable lifting chair, and it is easy to unlock the casters collectively by raising the operation lever at a desired place. If the caster operation lever is released from the hand at a desired predetermined position, a plurality of casters can be automatically locked together to easily fix the movable lifting chair to the desired floor F. it can.
Also, since moving the lift chair is easy lifting movement and the chair portion, it is possible to arrange the seat bed Choice easily transferred easily bed cared person sitting on the seat Conversely, the cared person on the bed can be seated on the seat of the movable lift chair.
In a further, since the base frame of a pair was lower height located portion below the front of the seat, be closer bed bottom on the floor F, be advanced to the distal end of the base frame under the bed Since most seats can be arranged on the bed or the like, the care receiver can move from the chair to the bed, and the chair can be moved from the bed without much human intervention.
Further, according to the invention of the movable lifting chairs of claims 2 and 3 , the pair of base frame bodies have a wide front distance and a short rear distance, and when the footrest is provided, the footrest is folded backward. Thus, it is possible to store a part of another movable lifting chair in a stack, and to reduce the storage space.

本発明の実施例の移動昇降椅子の椅子部を最下位置にした状態の斜視図、The perspective view of the state which made the chair part of the movement raising / lowering chair of the Example of this invention into the lowest position, 図１の側面図Side view of FIG. 図１の背面図、1 is a rear view of FIG. 図１の平面図、1 is a plan view of FIG. 図１で、座部、肘当て部、フットレスト回動して折り畳んだ状態の斜視図、In FIG. 1, a perspective view of a seat part, an elbow rest part, a footrest rotating and folded, 移動昇降椅子の椅子部を最上位置にした状態の斜視図、The perspective view of the state which made the chair part of a movable elevating chair into the uppermost position, 図６の側面図Side view of FIG. 図６の背面図である。FIG. 7 is a rear view of FIG. 6.

本発明の好適な移動昇降椅子の実施例を図面に沿って説明する。 An example of a suitable movable lift chair according to the present invention will be described with reference to the drawings.

図１は、本発明の実施例の移動昇降椅子１で、人を乗せて移動可能な移動昇降椅子１であり、床Ｆ(図２,７,８参照)に設置される移動基部２と椅子部３とから構成され、移動基部２は左右に対向する一対の基部枠体２１から構成され、それぞれの基部枠体２１の底部２２には、それぞれに複数のキャスター４を設けて後輪キャスター４１と中間キャスター４２の少なくとも４個のキャスター４は一括してロック及びロック解除される。このキャスター４のロック及びロック解除は同軸操作ワイヤー５(図３,８参照)で操作部６の操作でキャスター操作機構(図示せず)を操作して行われるが、このキャスター４のキャスター操作機構を操作する操作部６及び操作レバー６１を移動基部２から上方に延びた一対のスライド柱２３であって、椅子部３の背もたれ部３２の外側近傍に設け、移動昇降椅子１の座部３１に被介護者を座らせたままで移動でき、所望の場所で操作レバー６１を挙げて、キャスター４を一括してロック解除して簡単に移動することができ、目的の所定位置でキャスター４の操作レバー６１を手から離せば、自動的に複数のキャスター４を一括してロックして移動昇降椅子１を所望の床Ｆに簡単に固定することができる。
なお、操作部６及び操作レバー６１は、図３に示すように、前記の一対のスライド柱２３の上端部外側に移動昇降椅子１を移動する際に使用する水平にハンドル部２４及びその両端に把持部２４１が設けられ、その右側の把持部２４１の下側に設けられている。 FIG. 1 shows a mobile lift chair 1 according to an embodiment of the present invention, which is a mobile lift chair 1 that can be moved by a person. The mobile base 2 and the chair installed on the floor F (see FIGS. 2, 7, and 8). The movable base 2 is composed of a pair of base frame bodies 21 facing left and right, and a plurality of casters 4 are provided on the bottom 22 of each base frame body 21 to provide rear wheel casters 41. The at least four casters 4 of the intermediate casters 42 are locked and unlocked collectively. The caster 4 is locked and unlocked by operating a caster operating mechanism (not shown) by operating the operating unit 6 with a coaxial operating wire 5 (see FIGS. 3 and 8). A pair of slide pillars 23 extending upward from the moving base 2 and having an operating portion 6 and an operating lever 61 for operating the chair are provided near the outside of the backrest portion 32 of the chair portion 3, and are attached to the seat portion 31 of the movable lifting chair 1. It can be moved while the cared person is sitting, and can be easily moved by unlocking the casters 4 in a desired location by picking up the operation lever 61 at a desired location. If 61 is released from the hand, the plurality of casters 4 can be automatically locked together and the movable elevating chair 1 can be easily fixed to the desired floor F.
As shown in FIG. 3, the operation unit 6 and the operation lever 61 are horizontally disposed on the handle unit 24 and both ends thereof, which are used when the movable lifting chair 1 is moved outside the upper end portions of the pair of slide columns 23. A grip 241 is provided, and is provided below the grip 241 on the right side thereof.

また、一対の基部枠体２１は、図１、図２に示すように、２段の高さが異なる段差を有して前方の低い前枠体２１１と後方の比較的高い後枠体２１２を有しており、連結枠２５で連結され、椅子部３の背もたれ部３２を支える後半部の後枠体２１２には、比較的大径の双輪の後輪キャスター４１と同じく比較的大径の双輪の中間キャスター４２の前後２個のキャスターを配置して、重量のある昇降する椅子部３を支持している。この比較的大径の左右の双輪キャスター４１,４２にはキャスター操作機構(図示せず)が組み込まれ、操作部６の操作レバー６１の操作によって一括してロック及びロック解除される。
しかし、後輪キャスター４１と中間キャスター４２だけでは移動昇降椅子１が前側に倒れるような不安定な状態にあるので、基部枠体２１を前方に低い前枠体２１１を前方に延ばしており、その前枠体２１１の先端近傍に高さの低い前輪キャスター４３を設けている。更に、前枠体２１１の先端近傍には左右の掛け渡したフットレスト７を設け、使用状態では前方に回動して係止部７２を前枠体２１１の上面の所定位置に係止し、収納時はフットレスト７を回動軸７１を中心して後方に回動して、係止部７２を前枠体２１１の上面に係止して後方に折り畳めるようになっている。 Further, as shown in FIGS. 1 and 2, the pair of base frame bodies 21 has two steps with different heights, and includes a front frame body 211 having a lower front and a rear frame body 212 having a relatively higher rear. The rear frame 212 of the rear half that is connected by the connecting frame 25 and supports the backrest portion 32 of the chair portion 3 is provided with a relatively large-diameter twin wheel similar to the relatively large-diameter double-wheel rear wheel caster 41. The two casters before and after the intermediate caster 42 are arranged to support the chair portion 3 that moves up and down with weight. A caster operating mechanism (not shown) is incorporated in the relatively large-diameter left and right twin-wheel casters 41 and 42, and is locked and unlocked collectively by operating the operation lever 61 of the operation unit 6.
However, since only the rear wheel caster 41 and the intermediate caster 42 are in an unstable state in which the movable elevating chair 1 falls to the front side, the base frame 21 is extended forward and the lower front frame 211 is extended forward. A front wheel caster 43 having a low height is provided near the front end of the front frame 211. Further, the left and right footrests 7 are provided in the vicinity of the front end of the front frame body 211. In use, the footrest 7 is pivoted forward so that the locking portion 72 is locked at a predetermined position on the upper surface of the front frame body 211 and stored. In some cases, the footrest 7 is pivoted rearward about the pivot shaft 71 so that the locking portion 72 is locked to the upper surface of the front frame 211 and folded backward.

なお、図３に示すように、少なくとも左右の双輪キャスター４１,４２の全４個の双輪キャスター４１,４２を操作部６の操作レバー６１の操作によって、一括してロック及びロック解除することで移動昇降椅子１が固定及び移動可能となる。ただし、前輪キャスター４３にはキャスター操作機構(図示せず)が組み込まれていないが、必要であれば、低い高さの前輪キャスター４３にもキャスター操作機構を組み込んで、一括してロック及びロック解除するようにしてもよい。
この低い前枠体２１１の高さを低くした部分は、ほぼ座部３１の下に位置部分に対応しており、後述する図７に示すように、座部３１をベッドＢ及びその上マットＭ上に配置させるために、前枠体２１１が大概のベッドＢの下に進入できるようにしたものである。 In addition, as shown in FIG. 3, at least four twin-wheel casters 41, 42 of the left and right twin-wheel casters 41, 42 are moved by collectively locking and unlocking them by operating the operation lever 61 of the operation unit 6. The lift chair 1 can be fixed and moved. However, the caster operating mechanism (not shown) is not incorporated in the front wheel caster 43, but if necessary, the caster operating mechanism is also incorporated in the front wheel caster 43 having a low height, and locked and unlocked collectively. You may make it do.
The portion where the height of the lower front frame body 211 is lowered corresponds to the position portion substantially below the seat portion 31, and as shown in FIG. 7 to be described later, the seat portion 31 is placed on the bed B and its upper mat M. The front frame 211 can be inserted under most of the beds B in order to be placed on the top.

また、図４、及び回動部３１１を中心に回動した座部３１,回動部３３１を中心に回動した肘当て部３３,フットレスト７を回動軸７１を中心に回動した状態の図５に示すように、前記一対の基部枠体２１は前方での内側距離Ｘは広く、後方での外側距離Ｙは狭くして(Ｘ＞Ｙ)、他の移動昇降椅子１の後方の後枠体２１２の一部を重ねての収納できるようにし、その際、フットレスト７を使用位置にしたままでは、重ねて収納しただけでは邪魔となるので、不使用でのフットレスト７は後方に折りたためるようにしている。この収納の際、移動昇降椅子１は、図５に示すように座部３１及び肘当て部３３は椅子部３の回動部３１１,３３１を中心にして回動し上方に跳ね上げて折り畳むようにしている。 4 and the seat part 31 rotated around the turning part 311, the elbow rest part 33 turned around the turning part 331, and the footrest 7 turned around the turning shaft 71. As shown in FIG. 5, the pair of base frame bodies 21 have a wide inner distance X at the front and a small outer distance Y at the rear (X> Y), A part of the frame body 212 can be stored in a stacked state. At that time, if the footrest 7 is left in the use position, it is not easy to store the footrest 7 in a stacked state. I am doing so. At the time of this storage, as shown in FIG. 5, the movable elevating chair 1 is configured such that the seat 31 and the elbow rest 33 rotate about the rotating portions 311 and 331 of the chair 3 and jump upward and fold. I have to.

次に、椅子部３の昇降操作を説明するが、基本的には前掲の特許文献２の機構と同じである。
図３は椅子部３が最下位置にある状態の後方からの背面図、図６は椅子部３が最下位置に昇降した状態の前方から斜視図、図８はその背面図である。移動基部２に設けられた対向する一対のスライド柱２３に椅子部３が案内されるが、この椅子部３は座部３１,背もたれ部３２,肘当て部３３を一体とする椅子枠体３４の全体を昇降機構８によって昇降させ、この昇降機構８は進退可能な上下動アクチュエータ８１によって椅子部３を昇降させ、上下動アクチュエータ８１は電動駆動装置８２及びバッテリー８３によって駆動される。
この電動駆動装置８２の駆動指令は、水平にハンドル部２４の左側の把持部２４１の近傍のスライド柱２３に設けられた椅子部３を昇降する昇降スイッチ８４によって操作される。 Next, although the raising / lowering operation of the chair part 3 is demonstrated, it is the same as the mechanism of the above-mentioned patent document 2 fundamentally.
FIG. 3 is a rear view from the rear in a state where the chair part 3 is in the lowest position, FIG. 6 is a perspective view from the front in a state in which the chair part 3 is raised and lowered to the lowest position, and FIG. The chair portion 3 is guided by a pair of opposed slide columns 23 provided on the moving base portion 2, and the chair portion 3 is a chair frame body 34 in which a seat portion 31, a backrest portion 32, and an elbow rest portion 33 are integrated. The whole is moved up and down by a lifting mechanism 8, and the lifting mechanism 8 lifts and lowers the chair portion 3 by a vertically moving actuator 81 that is movable back and forth, and the vertically moving actuator 81 is driven by an electric drive device 82 and a battery 83.
The drive command for the electric drive device 82 is operated by a lift switch 84 that moves the chair portion 3 provided on the slide column 23 near the grip portion 241 on the left side of the handle portion 24 horizontally.

そこで、昇降手順を説明すると、図３の最下位置にある状態で昇降スイッチ８４を上方向にＯＮすると、電動駆動装置８２(図１参照)及びバッテリー８３によって上下動アクチュエータ８１が上方に延び、椅子枠体３４が一対のスライド柱２３に沿って上方に移動し、所望な高さになったところで昇降スイッチ８４をＯＦＦにすれば、その椅子部３はその高さ位置を保持する。
したがって、例えば、図７、図８は最下位置に昇降した状態であるが、上述したように、所望の高さのベッドＢ及びマットＭや布団の上に座部３１を位置させることが、昇降スイッチ８４の操作で簡単にできる。
このマットＭや布団の上面位置と座部３１の水平位置がほぼ同じにできるので、ベッドＢ上の被介護者を座部３１に簡単に移動させることができ、逆に、被介護者を座部３１からベッドＢ上に簡単に移動させることができる。 Therefore, the lifting procedure will be described. When the lifting switch 84 is turned on in the lowermost position in FIG. 3, the vertical movement actuator 81 is extended upward by the electric drive device 82 (see FIG. 1) and the battery 83. If the chair frame 34 moves upward along the pair of slide pillars 23 and reaches the desired height, the lift switch 84 is turned OFF, so that the chair portion 3 maintains its height position.
Therefore, for example, FIG. 7 and FIG. 8 are in a state where they are raised and lowered to the lowest position, but as described above, it is possible to position the seat 31 on the bed B and the mat M or the futon of a desired height. This can be done simply by operating the lift switch 84.
Since the upper surface position of the mat M or the futon and the horizontal position of the seat portion 31 can be made substantially the same, the cared person on the bed B can be easily moved to the seat part 31, and conversely, the cared person can be seated. It can be easily moved from the portion 31 onto the bed B.

本発明の実施例の移動昇降椅子によれば、移動昇降椅子の座部に人を座らせたままで移動でき、所望の場所で操作レバーを挙げて、キャスターを一括してロック解除して簡単に移動することができ、目的の所定位置でキャスターの操作レバーを手から離せば、自動的に複数のキャスターを一括してロックして移動昇降椅子を所望の床Ｆに簡単に固定することができる。
また、移動昇降椅子が移動と椅子部の昇降が容易であるから、座部をベッド上等に簡単に配置することができるので、座部に座った被介護者を簡単にベッドに移すことができ、逆に、ベッド上の被介護者を移動昇降椅子の座部に座らせることができる。
特に、一対の基部枠体は前方の座部の下に位置部分は高さを低くしたので、ベッド底が床Ｆに近くても、前枠体をベッド下に進入させることができ、大概の座部をベッド上等に配置することができるので、被介護者の椅子からベッドに移動、ベッドから椅子の移動が多くの人手を要しないで可能となる。
更に、一対の基部枠体は前方での距離は広く後方での距離は狭くし、フットレストを設けた場合は、フットレストは後方に折りたたむことで、他の移動昇降椅子の一部を重ねての収納でき、収納場所を小さくすることができる。
なお、本発明の特徴を損なうものでなければ、上記の各実施例に限定されるものでないことは勿論である。 According to the movable lifting chair of the embodiment of the present invention, it is possible to move while a person is sitting on the seat of the movable lifting chair, and it is easy to unlock the casters collectively by raising the operation lever at a desired place. If the caster operation lever is released from the hand at a desired predetermined position, a plurality of casters can be automatically locked together to easily fix the movable lift chair to the desired floor F. .
In addition, since the movable lift chair is easy to move and lift the chair part, the seat part can be easily placed on the bed, etc., so that the cared person sitting on the seat part can be easily moved to the bed. Conversely, the cared person on the bed can be seated on the seat of the movable lift chair.
In particular, since the position of the pair of base frames is lowered below the front seat, the front frame can be moved under the bed even when the bed bottom is close to the floor F. Since the seat can be arranged on the bed or the like, it is possible to move the chair from the cared person's chair to the bed and to move the chair from the bed without requiring a lot of manpower.
In addition, the pair of base frame bodies have a large distance in the front and a short distance in the rear, and when a footrest is provided, the footrest can be folded backward to store a part of another movable lifting chair. And the storage space can be reduced.
Of course, the present invention is not limited to the above-described embodiments as long as the features of the present invention are not impaired.

Ｂ・・ベッド、Ｆ・・床、Ｍ・・マット(布団)
Ｘ・・内側距離、Ｙ・・外側距離、
１・・移動昇降椅子、
２・・移動基部、２１・・基部枠体、２２・・底部、２１１・・前枠体、
２１２・・後枠体、２３・・スライド柱、
２４・・ハンドル部、２４１・・把持部、２５・・連結枠
３・・椅子部、３１・・座部、３１１・・回動部、
３２・・背もたれ部、３３・・肘当て部、３３１・・回動部、
３４・・椅子枠体、
４・・キャスター、４１・・後輪キャスター、４２・・中間キャスター、
４３・・前輪キャスター、
５・・同軸操作ワイヤー(点線)
６・・操作部、６１・・操作レバー
７・・フットレスト、７１・・回動軸、７２・・係止部、
８・・昇降機構、８１・・上下動アクチュエータ、８２・・電動駆動装置、
８３・・バッテリー、８４・・昇降スイッチ、 B ... Bed, F ... Floor, M ... Matte (futon)
X ... Inside distance, Y ... Outside distance,
1. Moving chair,
2. Moving base, 21 ... Base frame, 22 .... Bottom, 211 ... Front frame,
212 .. Rear frame, 23 .. Slide pillar,
24 ··· Handle portion, 241 ·· Grasping portion, 25 · · Connection frame 3 · · Chair portion, 31 · · Seat portion, 311 · · · Rotating portion,
32..Backrest part, 33..Elbow rest part, 331..Rotation part,
34 .. Chair frame,
4 .... casters, 41 ... rear wheel casters, 42 ... intermediate casters,
43 .. Front wheel casters,
5. Coaxial operation wire (dotted line)
6 ..Operation part 61 ..Operating lever 7 ..footrest 71 ..rotating shaft 72 ..locking part
8 .... Lifting mechanism, 81 ... Vertical motion actuator, 82 ... Electric drive,
83 ... Battery, 84 ... Lift switch,

Claims

A movable lifting chair comprising a chair portion having a seat portion that moves up and down and a moving base portion that supports the chair portion,
The moving base is composed of a pair of base frames facing left and right,
A slide column in which a plurality of casters are provided at the bottom of each base frame body, and an operation unit and an operation lever for collectively locking and unlocking at least four casters of the caster are extended upward from the moving base. In the vicinity of the outside of the back part of the chair part,
The pair of base frame members are provided with two steps, and the front frame member located under the front seat portion has a low height, and a caster having a low height is disposed in the vicinity of the tip thereof. Move up and down chair.

The pair of the base frame is made narrower in the distance behind widely distance in front, according to claim 1, characterized in that to be able to retract and overlapping a portion of the other mobile lift chairs Moving lift chair.

The pair of front frame body footrest passed over right and left is provided in front, moving lifting chair according to claim 2 wherein the footrest, characterized in Rukoto for folding backwards.