JP6337756B2

JP6337756B2 - Boarding aid

Info

Publication number: JP6337756B2
Application number: JP2014243865A
Authority: JP
Inventors: 藤田　親則; 親則藤田; 村林　賢司; 賢司村林
Original assignee: Toyota Auto Body Co Ltd
Current assignee: Toyota Auto Body Co Ltd
Priority date: 2014-12-02
Filing date: 2014-12-02
Publication date: 2018-06-06
Anticipated expiration: 2034-12-02
Also published as: JP2016107655A

Description

本発明は、乗降補助具に関する。 The present invention relates to a boarding aid.

従来、体の不自由な乗員が乗降しやすいように、乗降時に回転させることで乗員自身がシートに対して体の向きを変えることなく乗降することのできる回転式のシートが提案されている。例えば、特許文献１に記載されるように、走行時は乗員が車両の乗降口を側方に望み車両の進行方向を向いて座るように設置されており、乗降時には乗員が乗降口を通じて車両外方を向くように回転するシートがある。特許文献１に記載の回転式のシートは、シートに付随して回転するとともに、シートの回転に連動して上下方向に変位するパイプ状の足載台を備えている。このシートは、降車時には、はじめは足載台が車両の床面に沿って位置しており、シートが車両外方に回転し始めると足載台が上昇する。そして、車体フロアから上方へ突出して乗降口の下縁部を形成するロッカーパネルよりも高い位置まで乗員の足を持ち上げられる高さまで足載台が上昇した状態で、足載台の位置が保持される。シートは、足載台を高く保持したまま回転し続け、足載台に載せられた乗員の足がロッカーパネルを乗越える。そして、シートは、足載台を下降させながら更に回転し、車両外方を向いて停止する。乗車時には、シートはこの逆の動作をする。このシートによれば、乗員は、足載台に足を載せておくだけで、自力で足を持ち上げることなく足がロッカーパネルに干渉するのを回避して、ロッカーパネルを乗越えて乗降することができる。 2. Description of the Related Art Conventionally, there has been proposed a rotary seat that allows an occupant who is handicapped to get on and off without changing the direction of the body with respect to the seat by rotating it when getting on and off. For example, as described in Patent Document 1, it is installed so that an occupant sits facing the advancing direction of the vehicle while driving, and the occupant passes through the entrance when getting on and off. There is a sheet that rotates to face. The rotary seat described in Patent Document 1 includes a pipe-like footrest that rotates along with the seat and is displaced in the vertical direction in conjunction with the rotation of the seat. When the seat is alighted, the footrest is initially positioned along the floor of the vehicle, and the footrest rises when the seat starts to rotate outward. Then, the position of the footrest is maintained in a state where the footrest is raised to a height at which the occupant's feet can be lifted to a position higher than the rocker panel that protrudes upward from the vehicle body floor and forms the lower edge of the entrance / exit. The The seat continues to rotate while holding the footrest high, and the occupant's foot placed on the footrest climbs over the rocker panel. Then, the seat further rotates while lowering the footrest and stops toward the outside of the vehicle. When riding, the seat performs the reverse operation. According to this seat, an occupant can get on and off the rocker panel only by placing his / her foot on the footrest, avoiding the foot from interfering with the rocker panel without lifting the foot by himself / herself. it can.

実用新案登録第２６０４４４５号公報Utility Model Registration No. 2604445

しかし、上記従来の回転式のシートでは、少なくとも乗員の両足が載せられた足載台全体がロッカーパネルを完全に乗越える間は足載台が高く保持されるため、乗員は、長い間膝を深く曲げさせられた窮屈な体勢をとることとなる。そのため、膝を折り曲げることが困難な乗員は使うことができない。また、かかる回転式のシートを、ロッカーパネルの高さの異なる複数の車両において共通で使用する場合には、ロッカーパネルが最も高い車両に合わせて足載台の上昇高さが高く決定される。したがって、実際のロッカーパネルの高低の程度に関わらず、乗員は足をより深く曲げた窮屈な体勢を取ることを強いられることとなる。 However, in the above conventional rotary seat, since the footrest is held high at least as long as the entire footrest on which both feet of the occupant are placed is completely over the rocker panel, the occupant has to keep the knee for a long time. It will take a cramped posture that is deeply bent. For this reason, passengers who are difficult to bend their knees cannot be used. Further, when such a rotary seat is commonly used in a plurality of vehicles having different heights of the rocker panel, the height of the footrest is determined to be high in accordance with the vehicle having the highest rocker panel. Therefore, regardless of the actual height of the rocker panel, the occupant is forced to take a tight posture with the legs bent deeper.

一方、シートが回転機能を有しない場合には、体の不自由な乗員が乗降するために、介助者が乗員の体を支え、必要に応じて、体を回転させたり、足を持ち上げてロッカーパネルのような段差を乗越えさせたりして手助けする。このような介助者による乗降の手助けは力仕事であるが、従来、介助者が乗員の足を持ち上げて段差を乗越えさせるのを補助する手段は見当たらない。 On the other hand, if the seat does not have a rotation function, the passenger who is handicapped can get on and off, so that the assistant supports the occupant's body and rotates the body or lifts the foot as necessary Help by getting over the steps like a panel. Such assistance for getting on and off by an assistant is a laborious task, but conventionally, no means for assisting the assistant to lift the passenger's foot and get over the step is found.

そこで、本発明は、シートの回転や介助者の手助けなどによって受動的に足が動かされて乗降する乗員の足が車両の乗降口の段差を乗越えるのを、乗員が継続的に足を深く曲げた姿勢を継続させることなく補助することのできる乗降補助具を提供することを目的とする。 Therefore, the present invention is such that the occupant's feet, which are passively moved by getting on and off the passenger seat by the rotation of the seat or the assistance of the assistant, get over the step at the entrance / exit of the vehicle, It aims at providing the boarding / alighting assistance tool which can assist, without continuing the attitude | position bent.

本発明は、乗降口に車室の床面に対して高くなっている段差部を有する車両において、前記床面に設置され、前記段差部の上から前記床面に向けて下る内側斜面と、前記段差部の上から車室外方へ向かって下る外側斜面と、を備え、乗員の足が前記段差部を乗越えるのを補助する乗降補助具である。 The present invention, in a vehicle having a stepped portion that is higher with respect to the floor surface of the passenger compartment at the entrance, the inner slope that is installed on the floor surface and descends from the top of the stepped portion toward the floor surface, And an outer slope that descends from the top of the stepped portion toward the outside of the passenger compartment, and is a boarding / alighting assisting tool that assists an occupant's feet to get over the stepped portion.

かかる乗降補助具によれば、内側斜面と外側斜面とが、受動的に足が動かされて乗降する乗員の足を案内することで、乗員が継続的に足を深く曲げた姿勢を取ることなく、足が段差部に干渉するのを回避して乗降口の段差部を乗越えることができる。 According to such a boarding / alighting aid, the inner slope and the outer slope guide the occupant's feet that are passively moved to get on and off, so that the occupant does not take a posture in which the legs are continuously bent deeply. It is possible to avoid the feet from interfering with the stepped portion and to get over the stepped portion of the entrance / exit.

かかる乗降補助具の好ましい一形態として、前記内側斜面は、板状の内側斜面形成板状部により形成され、前記外側斜面は、板状の外側斜面形成板状部により形成され、前記内側斜面形成板状部と前記外側斜面形成板状部の少なくとも一部とを重ね合わせた収納状態とすることができるものがある。この場合、使用しないときは収納状態としてコンパクトにすることができる。 As a preferred embodiment of such a boarding / alighting aid, the inner slope is formed by a plate-like inner slope-forming plate-like part, and the outer slope is formed by a plate-like outer slope-forming plate-like part, and the inner slope is formed. There are some which can be set in a storage state in which the plate-like portion and at least a part of the outer slope forming plate-like portion are overlapped. In this case, when not in use, the storage state can be made compact.

この場合、前記内側斜面形成板状部は、前記内側斜面の下端側を構成する第１板状部材と、該第１板状部材と連結されており前記内側斜面の上端側を構成する第２板状部材とからなり、前記外側斜面形成板状部は、前記第２板状部材と連結された第３板状部材からなり、前記第２板状部材と第３板状部材とを前記第１板状部材と重ね合わせて収納状態とされるのが好ましい。 In this case, the inner slope forming plate-like portion is connected to the first plate member constituting the lower end side of the inner slope and the second plate constituting the upper end side of the inner slope. The outer slope forming plate-like portion is a third plate-like member connected to the second plate-like member, and the second plate-like member and the third plate-like member are connected to the first plate-like member. It is preferable to overlap with one plate-like member to be in a storage state.

なかでも好ましい形態としては、前記第１板状部材と第２板状部材とは、スライド構造を介してスライド可能に連結されており、前記第２板状部材と前記第３板状部材とは、ヒンジ構造を介して回転可能に連結されており、前記第２板状部材に対して前記第３板状部材を回転させることにより前記第２板状部材と前記第３板状部材とをフラットな状態にすることができる。そして、互いにフラットな状態にされた前記第２板状部材と前記第３板状部材とを前記第１板状部材に対してスライドさせることで、前記第２板状部材と第３板状部材とを前記第１板状部材に重ね合わせて収納状態とされる。この場合、狭いスペースで収納状態とすることができるとともに、逆の動作によって狭いスペースで展開することができる。 Among these, as a preferable form, the first plate member and the second plate member are slidably connected via a slide structure, and the second plate member and the third plate member are The second plate member and the third plate member are flattened by rotating the third plate member with respect to the second plate member. It can be in a state. Then, the second plate member and the third plate member are slid with respect to the first plate member by sliding the second plate member and the third plate member which are made flat with respect to each other. Are stacked on the first plate-like member to be stored. In this case, it can be stored in a narrow space and can be deployed in a narrow space by the reverse operation.

収納状態とすることのできる乗降補助具は、車体に予め取り付けておくことができる。この場合、乗降補助具がシートの固定部とともに車体に取り付けられていると、取り付けに係る部品点数の増加や作業工程の増加を抑制して車体に乗降補助具を取り付けることが可能である。 The boarding / alighting aid that can be stored can be attached to the vehicle body in advance. In this case, when the boarding / alighting assisting tool is attached to the vehicle body together with the seat fixing portion, it is possible to attach the boarding / alighting assisting tool to the vehicle body while suppressing an increase in the number of parts related to the mounting and an increase in work processes.

本発明の乗降補助具によれば、シートの回転や介助者の手助けなどによって受動的に足が動かされて乗降する乗員の足が車両の乗降口の段差を乗越えるのを、乗員が継続的に足を深く曲げた姿勢を継続させることなく補助することができる。 According to the boarding / alighting aid of the present invention, the occupant continues to climb over the step at the entrance of the vehicle when the foot of the occupant is passively moved by the rotation of the seat or the assistance of an assistant. It is possible to assist without continuing the posture with the legs bent deeply.

本発明の第１実施形態に係る乗降補助具の使用態様を模式的に示す車両の斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle schematically showing a usage mode of a boarding / alighting aid according to a first embodiment of the present invention. 本発明の第１実施形態に係る乗降補助具を示す斜視図であり、収納状態を示す図である。It is a perspective view which shows the boarding / alighting aid which concerns on 1st Embodiment of this invention, and is a figure which shows the accommodation state. 本発明の第１実施形態に係る乗降補助具を車両の外方から見た図であり、収納状態を示す図である。It is the figure which looked at the boarding / alighting assistance tool which concerns on 1st Embodiment of this invention from the outer side of a vehicle, and is a figure which shows the accommodation state. 本発明の第１実施形態に係る乗降補助具を車両の前方から見た図であり、収納状態を示す図である。It is the figure which looked at the boarding / alighting assistance tool which concerns on 1st Embodiment of this invention from the front of a vehicle, and is a figure which shows the accommodation state. 図４に示される乗降補助具の収納状態と使用状態との切り替え過程を示す図である。It is a figure which shows the switching process of the accommodation state and use state of the boarding / alighting aid shown by FIG. 図４に示される乗降補助具の収納状態と使用状態との切り替え過程を示す図である。It is a figure which shows the switching process of the accommodation state and use state of the boarding / alighting aid shown by FIG. 図４に示される乗降補助具の使用状態を示す図である。It is a figure which shows the use condition of the boarding / alighting aid shown by FIG. 本発明の第１実施形態に係る乗降補助具及びその車体への取り付け構造の分解斜視図である。It is a disassembled perspective view of the boarding / alighting aid and the attachment structure to the vehicle body which concern on 1st Embodiment of this invention. 図８に示される第２板状部材と第３板状部材の連結部を拡大して示す分解斜視図である。It is a disassembled perspective view which expands and shows the connection part of the 2nd plate-shaped member and 3rd plate-shaped member which are shown by FIG. 図４に示される第２板状部材と第３板状部材連結部を拡大して示す図である。It is a figure which expands and shows the 2nd plate-shaped member and 3rd plate-shaped member connection part which are shown by FIG. 本発明の第１実施形態に係る乗降補助具の使用状態における作用を車両の前方から見て示す図である。It is a figure which shows the effect | action in the use condition of the boarding / alighting assistance tool which concerns on 1st Embodiment of this invention seeing from the front of a vehicle. シートの向きを模式的に示す平面図であり、乗員が車両に乗っているときのシートの向きを示す図である。It is a top view which shows typically direction of a seat, and is a figure showing direction of a seat when a crew member is on a vehicle. シートの向きを模式的に示す平面図であり、乗員が乗降する際のシートの動く過程を示す図である。It is a top view which shows typically direction of a sheet | seat, and is a figure which shows the process in which a sheet | seat moves when a passenger | crew gets on / off. シートの向きを模式的に示す平面図であり、乗員が乗降する際のシートの動く過程を示す図である。It is a top view which shows typically direction of a sheet | seat, and is a figure which shows the process in which a sheet | seat moves when a passenger | crew gets on / off. 本発明の第２実施形態に係る乗降補助具を車両の前方から見た図であり、収納状態を示す図である。It is the figure which looked at the boarding / alighting assistance tool which concerns on 2nd Embodiment of this invention from the front of a vehicle, and is a figure which shows the accommodation state. 図１５に示される乗降補助具の収納状態と使用状態との切り替え過程を示す図である。It is a figure which shows the switching process of the accommodation state and use state of the boarding / alighting aid shown by FIG. 図１５に示される乗降補助具の使用状態を示す図である。It is a figure which shows the use condition of the boarding / alighting aid shown by FIG.

［第１実施形態］
図１に示されるように、本発明の一実施形態に係る乗降補助具３１は、車両１１に設置されている。各図において示される前後方向、幅方向、内外方向は、この車両１１における各方向を示す。車両１１は乗用車であり、乗降補助具３１は、助手席Ｐに着座して乗る人（乗員）Ｈが使用するために設置されている。車両１１は、その側面に、乗員Ｈが乗降するための開口部である乗降口１３を備えている。助手席Ｐは、乗っている乗員Ｈが一側方に乗降口１３を臨み、車両１１の前方を向いて着座するように設置されたシート２１により構成されている。 [First Embodiment]
As shown in FIG. 1, a boarding / alighting aid 31 according to an embodiment of the present invention is installed in a vehicle 11. The front-rear direction, the width direction, and the inner and outer directions shown in the drawings indicate the directions in the vehicle 11. The vehicle 11 is a passenger car, and the boarding / alighting aid 31 is installed for use by a person (occupant) H who sits on the passenger seat P and rides. The vehicle 11 is provided on its side surface with an entrance 13 that is an opening for the passenger H to get on and off. The passenger seat P is composed of a seat 21 that is installed so that the occupant H who rides faces the entrance 13 and faces the front of the vehicle 11.

図４に示されるように、乗降口１３は、ドア１３ｄで開閉される。乗降口１３は、その下縁部１３ａがシート２１の前方の床面Ｆより高くなっており、それにより段差部１５が形成されている。床面Ｆは、鋼板からなるフロアパネル２２ｆがカーペット２２ｃで表装されて形成されている。乗降口１３の下縁部１３ａは、車両１１の前後方向に延びるロッカ１９で形成されている。ロッカ１９は、対向して接合されて閉断面を形成する鋼板からなるアウタパネル１９ａとインナパネル１９ｂとで構成されている。ロッカ１９の室内側の上部は、樹脂製のカバー部材であるスカッフ１７で表装されている。この車両１１では、スカッフ１７が段差部１５の中で最も高くなっている。 As shown in FIG. 4, the entrance 13 is opened and closed by a door 13d. The entrance / exit 13 has a lower edge portion 13 a higher than the floor surface F in front of the seat 21, thereby forming a step portion 15. The floor surface F is formed by covering a floor panel 22f made of a steel plate with a carpet 22c. A lower edge 13 a of the entrance 13 is formed by a rocker 19 that extends in the front-rear direction of the vehicle 11. The rocker 19 is composed of an outer panel 19a and an inner panel 19b made of steel plates that are joined to face each other to form a closed cross section. The upper part on the indoor side of the rocker 19 is mounted with a scuff 17 which is a resin cover member. In the vehicle 11, the scuff 17 is the highest among the step portions 15.

図１に示されるシート２１は、乗員Ｈが乗降車する際に水平に回転させることができる。乗員Ｈが降車するときは、着座している乗員Ｈが乗降口１３を通じて車両１１の側方を向くように、シート２１の配置を、車両１１の前方を向いた配置から、側方を向いた配置に略９０度回転させることができる。乗員Ｈが乗車するときは、この逆の動作により、シート２１を、側方を向いた配置から前方を向いた配置に略９０度回転させることができる。このシート２１は、後で述べるように、回転動作に際して乗降口１３の後縁部を形成するピラー１３ｐと当該シート２１が干渉するのを回避するために、車両１１の前後方向への直進動作も伴いながら回転する。シート２１の動作に伴い、シート２１に着座した乗員Ｈの体が回転し、足が乗降口１３を通じて車両１１の内部と外部の間を移動する。このとき、乗降補助具３１を用いることで、足が段差部１５を容易に乗越えることができる。 The seat 21 shown in FIG. 1 can be rotated horizontally when the occupant H gets on and off the vehicle. When the occupant H gets off, the seat 21 is directed from the front side of the vehicle 11 to the side so that the seated occupant H faces the side of the vehicle 11 through the entrance 13. The arrangement can be rotated approximately 90 degrees. When the occupant H gets on the vehicle, the seat 21 can be rotated approximately 90 degrees from the side-to-side arrangement to the front-side arrangement by the reverse operation. As will be described later, the seat 21 also performs a straight-ahead operation in the front-rear direction of the vehicle 11 in order to avoid interference between the seat 13 and the pillar 13p that forms the rear edge portion of the entrance 13 during the rotation operation. It rotates with it. With the movement of the seat 21, the body of the occupant H seated on the seat 21 rotates, and the foot moves between the inside and the outside of the vehicle 11 through the entrance 13. At this time, by using the boarding / alighting aid 31, the foot can easily get over the step portion 15.

乗降補助具３１は、シート２１の前方の床面Ｆに設置されている。乗降補助具３１は、使用状態と収納状態とに状態を切り替えることができる。使用状態とは、シート２１に着座する乗員Ｈの乗降時に、乗員Ｈの足が段差部１５を乗越えるために使用することのできる状態のことである。収納状態とは、使用しないときにコンパクトにした状態のことである。 The boarding / alighting aid 31 is installed on the floor surface F in front of the seat 21. The boarding / alighting aid 31 can be switched between a use state and a storage state. The use state is a state that can be used when the occupant H seated on the seat 21 gets on and off the feet of the occupant H over the step portion 15. The stowed state is a state that is compact when not in use.

乗降補助具３１は、使用状態では、図１に模式的に示すように、床面Ｆの上から乗降口１３を通じて車両１１の外方へ延びて配置される。乗降補助具３１は、使用状態において、内側斜面４１と外側斜面５１とを備える。内側斜面４１は、段差部１５の上から床面Ｆからに向かって下り、車両１１の内方に延びる斜面である。外側斜面５１は、段差部１５の上から車両１１の外方へ向かって下る斜面である。乗降補助具３１は、内側斜面４１を形成する板状の内側斜面形成板状部４３と、外側斜面５１を形成する板状の外側斜面形成板状部５３とを備える。内側斜面形成板状部４３と外側斜面形成板状部５３とが段差部１５の上で接続されており、全体としては、屈曲した板状を成す。乗降補助具３１は、使用状態では、屈曲した部分が段差部１５に引っ掛けられる。したがって、乗降補助具３１の使用状態にあっては、段差部１５を挟んで車両１１の内方と外方に向かってそれぞれ下る斜面（内側斜面４１及び外側斜面５１）が配置される。一方、乗降補助具３１は、収納状態では、図２に示されるように、使用状態に比べて短い平らな板状であり、床面Ｆに沿って配置されて車両１１の内部に収められる。なお、図２では、シート２１の図示を省略している。図３に示されるように、乗降補助具３１は、シート２１のすぐ前にシート２１に隣接して配置されている。 In the use state, the boarding / alighting aid 31 is arranged extending from the floor F to the outside of the vehicle 11 through the boarding / exit 13 as schematically shown in FIG. The boarding / alighting aid 31 includes an inner slope 41 and an outer slope 51 in the use state. The inner slope 41 is a slope that descends from the top of the step portion 15 toward the floor surface F and extends inward of the vehicle 11. The outer slope 51 is a slope that goes down from the top of the step portion 15 toward the outside of the vehicle 11. The boarding / alighting aid 31 includes a plate-like inner slope forming plate-like portion 43 that forms the inner slope 41 and a plate-like outer slope-forming plate-like portion 53 that forms the outer slope 51. The inner slope forming plate-like portion 43 and the outer slope forming plate-like portion 53 are connected on the step portion 15 and form a bent plate shape as a whole. When the boarding / alighting aid 31 is in use, the bent portion is hooked on the step portion 15. Therefore, when the boarding aid 31 is in use, slopes (the inner slope 41 and the outer slope 51) that respectively fall toward the inside and the outside of the vehicle 11 with the step portion 15 interposed therebetween are arranged. On the other hand, the boarding / alighting assisting tool 31 is in a flat plate shape that is shorter than that in the use state in the housed state, and is arranged along the floor surface F and housed inside the vehicle 11 as shown in FIG. In addition, illustration of the sheet | seat 21 is abbreviate | omitted in FIG. As shown in FIG. 3, the boarding / alighting aid 31 is disposed adjacent to the seat 21 immediately in front of the seat 21.

図７に示されるように、乗降補助具３１は、第１板状部材６１と、第２板状部材７１と、第３板状部材８１との３枚の板状部材を備える。乗降補助具３１の使用状態では、第１板状部材６１と第２板状部材７１とが内側斜面形成板状部４３を構成して内側斜面４１を形成し、第３板状部材８１が外側斜面形成板状部５３を構成して外側斜面５１を形成する。一方、乗降補助具３１の収納状態では、図４に示されるように、第１板状部材６１に対して、第２板状部材７１と第３板状部材８１とが重ね合わされた状態とされる。 As shown in FIG. 7, the boarding / alighting assisting tool 31 includes three plate-like members including a first plate-like member 61, a second plate-like member 71, and a third plate-like member 81. In the usage state of the boarding / alighting aid 31, the first plate member 61 and the second plate member 71 constitute the inner slope forming plate portion 43 to form the inner slope 41, and the third plate member 81 is the outer side. The slope forming plate-like portion 53 is configured to form the outer slope 51. On the other hand, in the stored state of the boarding / alighting aid 31, as shown in FIG. 4, the second plate member 71 and the third plate member 81 are superimposed on the first plate member 61. The

図８に示されるように、第１板状部材６１は、平板部６３と、一対の枠部６５ａ，６５ｂとを有する。平板部６３は、矩形の平板状であり、平板部６３の上面６３ａが、乗降補助具３１の使用状態において内側斜面４１を構成する。枠部６５ａ，６５ｂは、それぞれ細長い矩形の平板状であり、互いに対向して平行に設けられている。枠部６５ａ，６５ｂは、平板部６３の下側に突起して、平板部６３に対して直角に形成されており、それぞれ平板部６３の周囲の互いに平行な辺に沿って延びている。このため、第１板状部材６１には、平板部６３の下側にて、平板部６３と枠部６５ａ，６５ｂとで囲まれた空間６１ｓが形成されている。乗降補助具３１の収納状態においては、この空間６１ｓに第２板状部材７１と第３板状部材８１とが収納される。以下、この空間６１ｓを収納空間と称する。枠部６５ａ，６５ｂには、それぞれ後述する第２板状部材７１に備えられたローラ７９ａ，７９ｂ，７９ｃ，７９ｄを案内するレール６７ａ，６７ｂが形成されている。レール６７ａ，６７ｂは、平板部６３の板面に平行に延びて形成された長穴からなる。 As shown in FIG. 8, the first plate-like member 61 includes a flat plate portion 63 and a pair of frame portions 65a and 65b. The flat plate portion 63 has a rectangular flat plate shape, and the upper surface 63 a of the flat plate portion 63 constitutes the inner inclined surface 41 when the boarding aid 31 is in use. Each of the frame portions 65a and 65b is an elongated rectangular flat plate shape, and is provided in parallel to face each other. The frame portions 65 a and 65 b protrude below the flat plate portion 63 and are formed at right angles to the flat plate portion 63, and extend along mutually parallel sides around the flat plate portion 63. For this reason, a space 61 s surrounded by the flat plate portion 63 and the frame portions 65 a and 65 b is formed in the first plate member 61 below the flat plate portion 63. In the storage state of the boarding / alighting aid 31, the second plate member 71 and the third plate member 81 are stored in the space 61s. Hereinafter, this space 61s is referred to as a storage space. Rails 67a and 67b for guiding rollers 79a, 79b, 79c, and 79d provided in a second plate-like member 71, which will be described later, are formed on the frame portions 65a and 65b, respectively. The rails 67a and 67b are long holes formed extending in parallel to the plate surface of the flat plate portion 63.

第１板状部材６１は、この乗降補助具３１を車体１１Ｂに取り付けるための被取付部６９ａ，６９ｂも備える。被取付部６９ａ，６９ｂは、枠部６５ａ，６５ｂの一端部を延長して形成された、相対向して平行に設けられた二つの平板状であって、先端が略半円形状の部位であり、それぞれに円柱状の軸部位６９ｊ，６９ｋを有する。軸部位６９ｊ，６９ｋは、互いに同軸で、被取付部６９ａ，６９ｂの外面から互いに反対方向に延びて設けられている。被取付部６９ａ，６９ｂが設けられた枠部６５ａ，６５ｂの一端部は、レール６７ａ，６７ｂの延び方向の一端側の端部である。第１板状部材６１は、この被取付部６９ａ，６９ｂが設けられた一端部６１ｃが車両１１の内方に位置し、内側斜面４１の下端側に配置される。 The 1st plate-shaped member 61 is also provided with the to-be-attached parts 69a and 69b for attaching this boarding / alighting aid 31 to the vehicle body 11B. The attached portions 69a and 69b are two flat plate shapes formed by extending one end portions of the frame portions 65a and 65b and provided in parallel to each other, and the tips are substantially semicircular portions. Each having a cylindrical shaft portion 69j, 69k. The shaft portions 69j and 69k are coaxial with each other and extend in the opposite directions from the outer surfaces of the mounted portions 69a and 69b. One end portions of the frame portions 65a and 65b provided with the mounted portions 69a and 69b are end portions on one end side in the extending direction of the rails 67a and 67b. The first plate member 61 is disposed on the lower end side of the inner slope 41 with one end 61c provided with the mounted portions 69a and 69b positioned inward of the vehicle 11.

第２板状部材７１は、平板部７３と、一対の側壁部７５ａ，７５ｂとを備える本体部７２を有する。平板部７３は矩形の平板状であり、乗降補助具３１の使用状態において、平板部７３の上面７３ａが、第１板状部材６１の平板部６３の上面６３ａとともに内側斜面４１を構成し、内側斜面４１の上端側の部分を構成する。側壁部７５ａ，７５ｂは、それぞれ細長い矩形の平板状であり、互いに対向して平行に設けられている。平板部７３の下側に突起して、平板部７３に対して直角に形成されており、それぞれ平板部７３の周囲の平行な対辺に沿って延びて設けられている。本体部７２は、第１板状部材６１の収納空間６１ｓに入れ子状に収容可能な大きさである。 The 2nd plate-shaped member 71 has the main-body part 72 provided with the flat plate part 73 and a pair of side wall parts 75a and 75b. The flat plate portion 73 has a rectangular flat plate shape, and the upper surface 73 a of the flat plate portion 73 constitutes the inner slope 41 together with the upper surface 63 a of the flat plate portion 63 of the first plate member 61 when the boarding aid 31 is in use. A portion on the upper end side of the slope 41 is formed. Each of the side wall portions 75a and 75b has an elongated rectangular flat plate shape, and is provided in parallel to face each other. It protrudes below the flat plate portion 73 and is formed at a right angle to the flat plate portion 73, and is provided so as to extend along parallel opposite sides around the flat plate portion 73. The main body 72 has a size that can be received in a nested manner in the storage space 61 s of the first plate-like member 61.

第２板状部材７１は、本体部７２の側壁部７５ａ，７５ｂの外面から直角に突起する軸７８ａ，７８ｂ，７８ｃ，７８ｄに回転可能に支持されたローラ７９ａ，７９ｂ，７９ｃ，７９ｄを備える。ローラ７９ａ，７９ｂ，７９ｃ，７９ｄは、両側壁部７５ａ，７５ｂのそれぞれに対して２つずつ設けられている。第２板状部材７１の本体部７２が、第１板状部材６１の収納空間６１ｓに重ね入れられて、ローラ７９ａ，７９ｂ，７９ｃ，７９ｄが第１板状部材６１のレール６７ａ，６７ｂに対して転動可能に嵌め合わされ、第２板状部材７１と第１板状部材６１とが連結されている。かかる連結構造により、第２板状部材７１は、第１板状部材６１に対してスライド可能に連結されている。そして、そのスライド操作により乗降補助具３１が伸縮可能となっている。スライド方向は、図５及び図６に示されるように、内側斜面４１の傾きに沿っており、第１板状部材６１に対して第２板状部材７１をスライドさせて両部材の重複部分の長さを短くすることで内側斜面４１の長さを延ばすことができる。逆のスライド操作により第１板状部材６１と第２板状部材７１との重複部分の長さを長くすることで、内側斜面４１の長さを縮めることができる。 The second plate member 71 includes rollers 79a, 79b, 79c, and 79d that are rotatably supported by shafts 78a, 78b, 78c, and 78d that project at right angles from the outer surfaces of the side wall portions 75a and 75b of the main body 72. Two rollers 79a, 79b, 79c, 79d are provided for each of the side wall portions 75a, 75b. The main body 72 of the second plate-like member 71 is overlapped in the storage space 61 s of the first plate-like member 61, and the rollers 79 a, 79 b, 79 c, and 79 d are in relation to the rails 67 a and 67 b of the first plate-like member 61. The second plate member 71 and the first plate member 61 are connected to each other so as to be able to roll. With this connection structure, the second plate member 71 is slidably connected to the first plate member 61. And the boarding / alighting aid 31 can be expanded and contracted by the sliding operation. As shown in FIGS. 5 and 6, the sliding direction is along the inclination of the inner inclined surface 41, and the second plate member 71 is slid with respect to the first plate member 61 so that the overlapping portion of both members is overlapped. The length of the inner slope 41 can be extended by shortening the length. By increasing the length of the overlapping portion between the first plate-like member 61 and the second plate-like member 71 by the reverse slide operation, the length of the inner slope 41 can be shortened.

第２板状部材７１は、本体部７２に、第３板状部材８１と連結するための連結部７７ａ，７７ｂも備える。第２板状部材７１の本体部７２と第３板状部材８１とは、後述するように回転可能に連結されている。第２板状部材７１の連結部７７ａ，７７ｂは、本体部７２の内側斜面４１の上端側に配置される端部に設けられている。連結部７７ａ，７７ｂは、側壁部７５ａ，７５ｂの端部を延長して形成された、相対向して平行に設けられた二つの平板状の部位であり、それぞれ貫通孔７７ｈ，７７ｉを有する。図９及び図１０に示されるように、連結部７７ａは、先端が貫通孔７７ｈと同心の半円形状であり、基端側には、第３板状部材８１の回転を規制するためのストッパ７７ｓを備える。ストッパ７７は、当該連結部７７ａの先端側の半円形状の外形に対して径外方に突起して形成されている。連結部７７ａでは、側壁部７５ａの一部を延長して当該連結部７７ａが形成されることで、側壁部７５ａの端面の一部を露出させ、該端部がストッパ７７ｓを構成する。ストッパ７７ｓは、半円形状の円周方向でみて平板部７３が設けられている側の端部に形成されている。 The second plate member 71 also includes connection portions 77 a and 77 b for connecting to the main body portion 72 with the third plate member 81. The main body 72 of the second plate-like member 71 and the third plate-like member 81 are rotatably connected as will be described later. The connecting portions 77 a and 77 b of the second plate-like member 71 are provided at the end portion disposed on the upper end side of the inner slope 41 of the main body portion 72. The connecting portions 77a and 77b are two flat plate-like portions that are formed by extending end portions of the side wall portions 75a and 75b and are provided in parallel to each other, and have through holes 77h and 77i, respectively. As shown in FIG. 9 and FIG. 10, the connecting portion 77a has a semicircular shape with the tip concentric with the through hole 77h, and a stopper for restricting the rotation of the third plate-like member 81 on the base end side. 77s. The stopper 77 is formed to protrude radially outward with respect to the semicircular outer shape on the distal end side of the connecting portion 77a. In the connecting portion 77a, a part of the side wall 75a is extended to form the connecting portion 77a, so that a part of the end surface of the side wall 75a is exposed, and the end constitutes a stopper 77s. The stopper 77s is formed at an end portion on the side where the flat plate portion 73 is provided when viewed in the circumferential direction of the semicircular shape.

図８に示されるように、第３板状部材８１は、平板部８３と、一対の側壁部８５ａ，８５ｂとを備える。平板部８３は、矩形の平板状であり、その上面８３ａが、乗降補助具３１の使用状態にて外側斜面５１を構成する（図７）。図８に示されるように、側壁部８５ａ，８５ｂは、それぞれ細長い矩形の平板状であり、互いに対向して平行に設けられている。平板部８３の下側に突起して、平板部８３に対して直角に形成されており、それぞれ平板部８３の周囲の平行な対辺に沿って延びて設けられている。 As shown in FIG. 8, the third plate-like member 81 includes a flat plate portion 83 and a pair of side wall portions 85 a and 85 b. The flat plate portion 83 has a rectangular flat plate shape, and an upper surface 83a of the flat plate portion 83 constitutes the outer inclined surface 51 when the boarding aid 31 is in use (FIG. 7). As shown in FIG. 8, the side wall portions 85 a and 85 b are each an elongated rectangular flat plate shape, and are provided in parallel to face each other. It protrudes below the flat plate portion 83 and is formed at a right angle to the flat plate portion 83, and is provided to extend along parallel opposite sides around the flat plate portion 83.

第３板状部材８１は、第２板状部材７１の本体部７２と連結するための連結部８７ａ，８７ｂを、外側斜面５１の上端側に配置される端部に備えている。連結部８７ａ，８７ｂは、側壁部８５ａ，８５ｂの端部を延長して形成された板状の部位であり、互いに離間して相対向して平行に設けられている。その離間距離は、第２板状部材７１の本体部７２の二つの連結部７７ａ，７７ｂの間に第３板状部材８１の二つの連結部８７ａ，８７ｂが収まる距離とされている。第３板状部材８１の連結部８７ａ，８７ｂには、円柱状の軸部位８７ｊ，８７ｋが設けられている。軸部位８７ｊ，８７ｋは、連結部８７ａ，８７ｂの外面から互いに反対方向へ延びて、互いに同軸で設けられている。第２板状部材７１の連結部７７ａ，７７ｂの間に第３板状部材８１の連結部８７ａ，８７ｂが配され、第２板状部材７１の連結部７７ａ，７７ｂの貫通孔７７ｈ，７７ｉに第３板状部材８１の軸部位８７ｊ，８７ｋが通されることで、第２板状部材７１と第３板状部材８１とが互いに回転可能に連結されている。 The third plate-like member 81 includes connecting portions 87 a and 87 b for connecting to the main body portion 72 of the second plate-like member 71 at the end portion disposed on the upper end side of the outer slope 51. The connecting portions 87a and 87b are plate-like portions formed by extending the end portions of the side wall portions 85a and 85b, and are provided in parallel and spaced apart from each other. The separation distance is a distance in which the two connecting portions 87a and 87b of the third plate-like member 81 are accommodated between the two connecting portions 77a and 77b of the main body portion 72 of the second plate-like member 71. The connecting portions 87a and 87b of the third plate-like member 81 are provided with cylindrical shaft portions 87j and 87k. The shaft portions 87j and 87k extend in the opposite directions from the outer surfaces of the connecting portions 87a and 87b, and are provided coaxially with each other. The connection portions 87a and 87b of the third plate-like member 81 are arranged between the connection portions 77a and 77b of the second plate-like member 71, and are inserted into the through holes 77h and 77i of the connection portions 77a and 77b of the second plate-like member 71. By passing the shaft portions 87j and 87k of the third plate-like member 81, the second plate-like member 71 and the third plate-like member 81 are rotatably connected to each other.

第３板状部材８１の連結部８７ａには、第２板状部材７１の連結部７７ａに設けられたストッパ７７ｓと干渉することで、第２板状部材７１に対する第３板状部材８１の回転を止めることのできる爪部８７ｔを備える。図９及び図１０に示されるように、爪部８７ｔは、第３板状部材８１の回転軌道である円弧の径方向外方に張り出し、その先端は、第３板状部材８１の連結部８７ａが配されている外側に張り出している。爪部８７ｔの先端がストッパ７７ｓに当たることで、第２板状部材７１に対する第３板状部材８１の回転が止められる。このように爪部８７ｔとストッパ７７ｓとで構成される回転規制構造により、第２板状部材７１と第３板状部材８１とは、次の規制の下で回転可能に連結されている。すなわち、内側斜面４１を構成する第２板状部材７１の平板部７３の一方の面７３ａと、外側斜面５１を構成する第３板状部材８１の平板部８３の一方の面８３ａとの間の角度が１８０度を超える角度範囲内において第２板状部材７１と第３板状部材８１とは互いに自在に回転することができる。しかし、前記角度が１８０度になり、互いに一続きのフラットな状態となると、それ以上前記角度を狭めようとする方向へは回転できない。なお、本明細書において、フラットな状態とは、第２板状部材７１と第３板状部材８１とが角度を形成して接続されているのではなく、一直線上に並んでいることを意味し、多少の段差を形成して一直線上に並んでいる場合も含む概念である。 The third plate member 81 rotates relative to the second plate member 71 by interfering with the stopper 77s provided on the connection portion 77a of the second plate member 71 at the connecting portion 87a of the third plate member 81. 87t is provided. As shown in FIGS. 9 and 10, the claw portion 87 t projects outward in the radial direction of the arc, which is the rotation track of the third plate-like member 81, and the tip thereof is the connecting portion 87 a of the third plate-like member 81. Is projected outside. When the tip of the claw portion 87t hits the stopper 77s, the rotation of the third plate member 81 relative to the second plate member 71 is stopped. Thus, the second plate member 71 and the third plate member 81 are rotatably connected under the following restriction by the rotation restricting structure constituted by the claw portion 87t and the stopper 77s. That is, between one surface 73a of the flat plate portion 73 of the second plate-like member 71 constituting the inner slope 41 and one surface 83a of the flat plate portion 83 of the third plate-like member 81 constituting the outer slope 51. The second plate-like member 71 and the third plate-like member 81 can freely rotate with each other within an angle range in which the angle exceeds 180 degrees. However, when the angle becomes 180 degrees and becomes a continuous flat state, it cannot be rotated further in the direction in which the angle is narrowed. In the present specification, the flat state means that the second plate-like member 71 and the third plate-like member 81 are not connected at an angle but are aligned in a straight line. However, it is a concept including a case where some steps are formed and arranged in a straight line.

乗降補助具３１は、取付ブラケット９１を介して車体１１Ｂに取付けられている。乗降補助具３１は、内側斜面４１の下端を構成する第１板状部材６１の一端部が床面Ｆに沿って車両１１の前後方向に延びる軸線周りに回転可能に取付ブラケット９１により保持されて、車体に取り付けられている。 The boarding / alighting aid 31 is attached to the vehicle body 11 </ b> B via a mounting bracket 91. The boarding / alighting aid 31 is held by a mounting bracket 91 so that one end of the first plate-like member 61 constituting the lower end of the inner slope 41 is rotatable about an axis extending in the front-rear direction of the vehicle 11 along the floor surface F. Attached to the car body.

図３に示されるように、乗降補助具３１が取付ブラケット９１を介して取り付けられている車体１１Ｂの部位は、車両１１の床部に設けられたフロアクロスメンバ２３である。フロアクロスメンバ２３は、車両１１の床部にて車両１１の幅方向に延びて配された骨格部材であり、シート２１の前部が固定されている。シート２１は、その下部に設けられたＬ字型の脚部２５の水平に前方へ張り出す下端部が、フロアクロスメンバ２３の上面２３ａに重ね合わされてボルト２７で締結されることでフロアクロスメンバ２３に固定されている。シート２１は、車両１１の幅方向（フロアクロスメンバ２３の長手方向）に離間した二箇所でフロアクロスメンバ２３に対して固定されている。このシート２１のフロアクロスメンバ２３に対する固定箇所において、シート２１を固定するボルト２７により取付ブラケット９１もフロアクロスメンバ２３に固定されている。脚部２５が、本発明の「シートの固定部」に相当する。 As shown in FIG. 3, the part of the vehicle body 11 </ b> B to which the boarding / alighting aid 31 is attached via the attachment bracket 91 is a floor cross member 23 provided on the floor of the vehicle 11. The floor cross member 23 is a skeleton member that extends in the width direction of the vehicle 11 on the floor portion of the vehicle 11, and the front portion of the seat 21 is fixed. The seat 21 has a floor cross member in which a lower end portion of the L-shaped leg portion 25 provided in the lower portion of the seat 21 extends horizontally forward and is overlapped with an upper surface 23a of the floor cross member 23 and fastened with a bolt 27. 23 is fixed. The seat 21 is fixed to the floor cross member 23 at two locations separated in the width direction of the vehicle 11 (longitudinal direction of the floor cross member 23). At a location where the seat 21 is fixed to the floor cross member 23, the mounting bracket 91 is also fixed to the floor cross member 23 by a bolt 27 that fixes the seat 21. The leg portion 25 corresponds to the “sheet fixing portion” of the present invention.

図８に示されるように、取付ブラケット９１は、フロアクロスメンバ２３に固定される一対の固定部９５ａ，９５ｂと、乗降補助具３１を回動可能に保持する保持部９７とを一体で備える。固定部９５ａ，９５ｂは、フロアクロスメンバ２３の上面２３ａに重ね合わされる平板状であり、ボルト２７が通される貫通孔９５ｈ，９５ｉが形成されている。二つの固定部９５ａ，９５ｂは、フロアクロスメンバ２３の長手方向に離間して配置されるように、所定の間隔をおいて設けられている。図３に示されるように、固定部９５ｂは、シート２１の脚部２５とフロアクロスメンバ２３の間に挟まれた状態で、シート２１の脚部２５とともにフロアクロスメンバ２３にボルト２７で固定されている。もう一方の固定部９５ａも同様にボルト２７で固定されている。 As shown in FIG. 8, the mounting bracket 91 is integrally provided with a pair of fixing portions 95a and 95b fixed to the floor cross member 23, and a holding portion 97 that rotatably holds the boarding aid 31. The fixing portions 95a and 95b have a flat plate shape superimposed on the upper surface 23a of the floor cross member 23, and through holes 95h and 95i through which the bolts 27 are passed are formed. The two fixing portions 95 a and 95 b are provided at a predetermined interval so as to be spaced apart in the longitudinal direction of the floor cross member 23. As shown in FIG. 3, the fixing portion 95 b is fixed to the floor cross member 23 together with the leg portion 25 of the seat 21 with a bolt 27 while being sandwiched between the leg portion 25 of the seat 21 and the floor cross member 23. ing. Similarly, the other fixing portion 95a is fixed by the bolt 27.

図８に示されるように、保持部９７は、車両１１の前後方向に離間して対向して設けられた一対の平板状の部位９７ａ，９７ｂからなり、各平板状の部位９７ａ，９７ｂに、同軸で配置された貫通孔９７ｈ，９７ｉが形成されている。保持部９７の平板状の部位９７ａ，９７ｂの間に第１板状部材６１の被取付部６９ａ，６９ｂが配されて軸部位６９ｊ，６９ｋが貫通孔９７ｈ，９７ｉに通されることで、保持部９７に対して第１板状部材６１が軸部位６９ｊ，６９ｋを中心に床面Ｆの直ぐ上で回転可能に保持されている（図５，図６参照）。このように乗降補助具３１が車両１１に取り付けられていることで、乗降補助具３１は、車両１１の内外方向の内側の一端が回転可能に車体１１Ｂに保持されるとともに、車両１１の内外方向に沿って伸縮可能となっている。 As shown in FIG. 8, the holding portion 97 is composed of a pair of flat plate portions 97 a and 97 b that are provided facing each other in the front-rear direction of the vehicle 11, and each flat plate portion 97 a and 97 b includes Through-holes 97h and 97i arranged coaxially are formed. The attachment portions 69a and 69b of the first plate-like member 61 are arranged between the flat portions 97a and 97b of the holding portion 97, and the shaft portions 69j and 69k are passed through the through holes 97h and 97i. The first plate-like member 61 is held rotatably with respect to the portion 97 just above the floor surface F around the shaft portions 69j and 69k (see FIGS. 5 and 6). Since the boarding / alighting assisting tool 31 is attached to the vehicle 11 as described above, the boarding / alighting assisting tool 31 is supported by the vehicle body 11B so that the inner end of the vehicle 11 in the inner / outer direction can be rotated, and the vehicle 11 can move in / outwardly. It can be stretched along.

図４から図７を参照しながら、乗降補助具３１について、収納状態から使用状態へ展開する過程を説明する。 With reference to FIG. 4 to FIG. 7, the process of developing the boarding / alighting assisting tool 31 from the stored state to the used state will be described.

図４には、乗降補助具３１の収納状態が示されている。収納状態では、第２板状部材７１と第３板状部材８１とが互いにフラットな状態で配置された状態で、第１板状部材６１に沿った状態で、第１板状部材６１の収納空間６１ｓ（図８）に収められている。収納状態では、乗降補助具３１は、その板面が床面Ｆに沿った状態で床面Ｆの上に設置されている。第３板状部材８１の第２板状部材７１と連結されない端部８１ｂは、第１板状部材６１の収納空間６１ｓより少しだけ突出している。この第３板状部材８１の端部８１ｂを把持して乗降補助具３１を展開させることができる。 FIG. 4 shows the storage state of the boarding / alighting aid 31. In the storage state, the second plate-like member 71 and the third plate-like member 81 are arranged in a flat state with each other, and the first plate-like member 61 is stored in a state along the first plate-like member 61. It is stored in the space 61s (FIG. 8). In the stored state, the boarding / alighting assisting tool 31 is installed on the floor surface F with its plate surface along the floor surface F. The end 81 b of the third plate member 81 that is not connected to the second plate member 71 protrudes slightly from the storage space 61 s of the first plate member 61. The boarding / alighting aid 31 can be unfolded by gripping the end 81b of the third plate-like member 81.

乗降補助具３１を展開するときは、まずドア１３ｄを開けて乗降口１３を開放する。そして、図５に示されるように、乗降補助具３１を上方に回転させ、乗降補助具３１の車両１１の内方の端部（第１板状部材６１の端部）６１ｃを支点として、斜め上方へ向けて傾ける。次いで、図６に示されるように、第３板状部材８１を車両１１の外側へ引っ張り出す。そうすると、第３板状部材８１と第２板状部材７１とが第１板状部材６１に対してスライドして、乗降補助具３１が伸張する。そして、第３板状部材８１と第２板状部材７１との連結部分Ｒを段差部１５の上に位置するように段差部１５に乗降補助具３１を掛け渡す。そして、第３板状部材８１を、第２板状部材７１に対して回転させて、車両１１の外方の端部８１ｂを斜め下方に指向させる。以上の操作により、第１板状部材６１と第２板状部材７１とで内側斜面４１が形成されるとともに、第３板状部材８１で外側斜面５１が形成されて、乗降補助具３１が使用状態となる。乗降補助具３１は、この操作の逆の操作によって、使用状態から収納状態にすることができる。その場合、操作者は、第３板状部材８１の車両１１の外方の端部８１ｂを、持ち上げてその回転が規制されるまで回転させて第３板状部材８１と第２板状部材７１とをフラットな状態として、車両１１の内方へスライド操作をすることにより、容易に収納状態へと戻すことができる。 When deploying the boarding / alighting aid 31, first the door 13d is opened and the boarding / exit 13 is opened. Then, as shown in FIG. 5, the boarding / alighting assisting tool 31 is rotated upward, and the inboard end part (the end part of the first plate-like member 61) 61 c of the boarding / aiding assisting tool 31 is used as a fulcrum. Tilt upwards. Next, as shown in FIG. 6, the third plate member 81 is pulled out of the vehicle 11. Then, the third plate-like member 81 and the second plate-like member 71 slide relative to the first plate-like member 61, and the boarding / alighting aid 31 extends. Then, the boarding aid 31 is passed over the step portion 15 so that the connecting portion R between the third plate member 81 and the second plate member 71 is positioned on the step portion 15. And the 3rd plate-shaped member 81 is rotated with respect to the 2nd plate-shaped member 71, and the edge part 81b of the outer side of the vehicle 11 is orientated diagonally downward. As a result of the above operation, the inner slope 41 is formed by the first plate member 61 and the second plate member 71, and the outer slope 51 is formed by the third plate member 81. It becomes a state. The boarding / alighting assisting tool 31 can be changed from the use state to the stored state by an operation reverse to this operation. In that case, the operator lifts the outer end 81b of the vehicle 11 of the third plate member 81 and rotates the third plate member 81 and the second plate member 71 until the rotation is restricted. Can be easily returned to the housed state by performing a sliding operation inward of the vehicle 11.

乗降補助具３１の使用状態では、シート２１の乗員Ｈの乗降に際して乗員Ｈの足Ａ１，Ａ２が受動的に動かされる際に、図１１に示されるように、内側斜面４１と外側斜面５１の上を移動させられることで、足Ａ１，Ａ２が段差部１５を乗越えることができる。 When the boarding / alighting aid 31 is in use, when the occupant H's feet A1 and A2 of the occupant H are passively moved when the occupant H gets on and off the seat 21, as shown in FIG. , The feet A1 and A2 can get over the stepped portion 15.

乗員Ｈの足Ａ１，Ａ２が受動的に動かされる場合としては、例えば、シート２１が回転することにより、乗員Ｈが回転させられる場合が挙げられる。シート２１の回転動作と、それに伴う乗員Ｈの足Ａ１，Ａ２の足の移動経路を平面視で模式的に示す図１２〜図１４を参照しながら、乗員Ｈが降車する際に足Ａ１，Ａ２が段差部１５を乗越える過程を説明する。シート２１は、車両１１の前後方向へのスライド動作を伴いながら、平面視で中心からみて車両１１の外方寄りであり且つ後方寄りの位置を回転中心Ｏとして回転する。図１２に示されるように車両１１の前方を向いているシート２１は、回転中心Ｏを中心に車両１１の外方へ約４５度回転する（図１３参照）。続いて前方へ直進しつつ更に回転することで、乗降口１３の後端を区切るピラー１３ｐにシート２１が干渉するのを避けながらシート２１がシート２１の外方へ向く（図１３参照）。このときの足Ａ１の軌道ａ１を図１３，図１４に示す。乗員Ｈの足Ａ１，Ａ２は、シート２１に載っている胴に付き従ってやや遅れながらも、シート２１の動きにより、平面視において、はじめは弧を描いて車両１１の外方へ動き、続いて車両１１の前方へ一端膨らみながら更に外方向へ弧を描いて動き、車両１１の外側へ移動する。乗員Ｈは、降車に際して、足Ａ１，Ａ２が前方の乗降補助具３１内側斜面４１に載せられることで、図１１に示されるように、シート２１の動きに伴って内側斜面４１と外側斜面５１とに沿って移動し、段差部１５を乗越えることができる。 An example of the case where the legs A1 and A2 of the occupant H are passively moved includes a case where the occupant H is rotated by the rotation of the seat 21. Referring to FIGS. 12 to 14 schematically showing the rotation movement of the seat 21 and the accompanying movement paths of the feet A1 and A2 of the occupant H in plan view, the feet A1 and A2 when the occupant H gets off the vehicle. The process of getting over the step 15 will be described. The seat 21 rotates with the rotation center O at a position that is closer to the outside of the vehicle 11 and closer to the rear as seen from the center in plan view while being accompanied by a sliding motion in the front-rear direction of the vehicle 11. As shown in FIG. 12, the seat 21 facing the front of the vehicle 11 rotates about 45 degrees outward of the vehicle 11 about the rotation center O (see FIG. 13). Subsequently, by further rotating while moving straight forward, the sheet 21 faces outward from the sheet 21 while avoiding interference of the sheet 21 with the pillar 13p that divides the rear end of the entrance 13 (see FIG. 13). The trajectory a1 of the foot A1 at this time is shown in FIGS. The legs A1 and A2 of the occupant H are attached to the torso on the seat 21 and are slightly delayed. However, the movement of the seat 21 initially moves outward in an arc in a plan view, and then continues. While one end bulges forward of the vehicle 11, it further moves in an arc outward and moves to the outside of the vehicle 11. When the occupant H gets out of the vehicle, the feet A1 and A2 are placed on the inner slope 41 of the front boarding aid 31 and the inner slope 41 and the outer slope 51 as the seat 21 moves as shown in FIG. It can move along and can step over the step part 15.

乗員Ｈの足Ａ１，Ａ２が受動的に動かされる別の場合として、シート２１を回転させずに介助者により動かされる場合もある。その場合、介助者は、乗員Ｈの足Ａ１，Ａ２を乗降補助具３１の内側斜面４１の上に載せ、足Ａ１，Ａ２を直接操作して内側斜面４１及び外側斜面５１に沿ってずらすことで足Ａ１，Ａ２を持ち上げることなく、段差部１５を乗越えさせることができる。あるいは、介助者が乗員Ｈの胴を支持しながら、胴に付き従って足Ａ１，Ａ２が動かされる場合でも、予め足Ａ１，Ａ２を内側斜面４１に載せておくことで、内側斜面４１と外側斜面５１とに沿って足Ａ１，Ａ２が移動することで、容易に段差部１５を乗越えさせることができる。 As another case where the legs A1 and A2 of the occupant H are passively moved, they may be moved by an assistant without rotating the seat 21. In that case, the assistant places the feet A1 and A2 of the occupant H on the inner slope 41 of the boarding aid 31 and moves the feet A1 and A2 along the inner slope 41 and the outer slope 51 by directly operating them. The step portion 15 can be climbed over without lifting the legs A1, A2. Alternatively, even when the assistant supports the occupant H's torso and the feet A1 and A2 are moved accordingly, the feet A1 and A2 are placed on the inner slope 41 in advance, so that the inner slope 41 and the outer slope are placed. When the feet A1 and A2 move along the line 51, the step portion 15 can be easily moved over.

ここでは乗員Ｈの降車時を例に挙げて乗降補助具３１の機能を説明したが、乗車時は、この逆の方向に足Ａ１，Ａ２が動かされることで、足Ａ１，Ａ２が段差部１５を超えるのを補助することができる。 Here, the function of the boarding / alighting assisting tool 31 has been described by taking as an example the time when the occupant H gets out of the vehicle. However, during boarding, the feet A1 and A2 are moved in the opposite direction, so that the feet A1 and A2 are stepped 15. Can be exceeded.

かかる乗降補助具３１によれば、次の効果を奏する。乗降補助具３１は、シート２１の前方の床面Ｆの上に設置され、床面Ｆの高さと段差部１５の上の高さとの間で傾斜する内側斜面４１と、段差部１５の上の高さから下る外側斜面５１とによって、足Ａ１，Ａ２を案内する。そのため、足Ａ１，Ａ２は、段差部１５を乗越えるときに最も高く位置し、その前後では徐々に高くなる或いは低くなるため、乗員Ｈは、膝を深く曲げた状態が長く続くことなく段差部１５を乗越えることができる。また、乗降補助具３１は、段差部１５に引っ掛けて設置されるため、乗員Ｈは、段差部１５に対して必要以上に高く足Ａ１，Ａ２を上げさせられることなく段差部１５を乗越えることができ、膝の曲げ具合はより浅くてよい。 According to this boarding / alighting aid 31, there are the following effects. The boarding / alighting aid 31 is installed on the floor surface F in front of the seat 21, and has an inner slope 41 that is inclined between the height of the floor surface F and the height of the step portion 15, and the step portion 15. The legs A1 and A2 are guided by the outer slope 51 descending from the height. Therefore, the feet A1 and A2 are positioned highest when getting over the stepped portion 15, and gradually increase or decrease before and after the stepped portion 15, so that the occupant H does not continue to bend the knee deeply for a long time. You can get over 15. Moreover, since the boarding / alighting assisting tool 31 is installed by being hooked on the stepped portion 15, the occupant H gets over the stepped portion 15 without raising the feet A1 and A2 higher than necessary with respect to the stepped portion 15. The knees can be bent more shallowly.

また、乗降補助具３１は、収納状態と使用状態の状態切り替えが、車両１１の内外方向へのスライド操作によって、該乗降補助具３１を伸縮させることにより行われる。そのため、小さいスペースで状態を切り替えることができる。また、その操作も容易である。 In addition, the boarding / alighting assisting tool 31 is switched between the housed state and the use state by extending and retracting the boarding / alighting assisting tool 31 by sliding the vehicle 11 in and out. Therefore, the state can be switched in a small space. Moreover, the operation is also easy.

また、乗降補助具３１は、シート２１を固定するボルト２７でもって、シート２１とともにフロアクロスメンバ２３に取り付けられているため、部品点数の増加や作業工程の増加を抑制して車体１１Ｂに取り付けられる。 Moreover, since the boarding / alighting aid 31 is attached to the floor cross member 23 together with the seat 21 with the bolts 27 for fixing the seat 21, it is attached to the vehicle body 11B while suppressing an increase in the number of parts and an increase in work processes. .

なお、本実施形態では、第１板状部材６１と第２板状部材７１とを連結するスライド機構として、レールとローラによるスライド機構を例示したが、従来公知の種々のスライド機構に変更可能である。 In the present embodiment, the slide mechanism using rails and rollers is exemplified as the slide mechanism for connecting the first plate-like member 61 and the second plate-like member 71, but it can be changed to various conventionally known slide mechanisms. is there.

［第２実施形態］
本実施形態に係る乗降補助具１３１は、上記実施形態１の乗降補助具３１に替えて、車両１１において、シート２１の前方の床面Ｆの上に設置されるものである。その設置位置や設置態様は、上記実施形態１と同様であるので、変更を要しない部分については、上記実施形態１と同じ符号で示し、詳細な説明を省略する。 [Second Embodiment]
The boarding / alighting assisting tool 131 according to the present embodiment is installed on the floor F in front of the seat 21 in the vehicle 11 instead of the boarding / alighting assisting tool 31 of the first embodiment. Since the installation position and installation mode are the same as those in the first embodiment, portions that do not need to be changed are denoted by the same reference numerals as those in the first embodiment, and detailed description thereof is omitted.

図１５に示されるように、乗降補助具１３１は、第１板状部材１６１と、第２板状部材１７１と、第３板状部材１８１との３枚の板状部材を備える。第１板状部材１６１は、車両１１の内方の一端部１６１ａが、取付ブラケット９１を介して車体１１Ｂに取り付けられている。その取り付け構造は、第１板状部材１６１の一端部１６１ｃを、床面Ｆに沿って車両１１の前後方向に延びる軸１６３ｊの回りに回転可能に車体１１Ｂに保持する。第２板状部材１７１は、第１板状部材１６１の上側に重ね合わされ、第１板状部材１６１に対してスライド可能に連結されている。そのスライド方向は、車両１１の内外方向である。第２板状部材１７１の車両１１の外方の端部１７１ｄは、第３板状部材１８１の車両１１の内方の端部１８１ｃと連結されており、第３板状部材１８１も第１板状部材１６１の上側に重ね合わせることが可能となっている。第２板状部材１７１と第３板状部材１８１の連結構造は、車両１１の前後方向に延びる軸１８３ｊの回りに回転可能に両板状部材を連結するものであり、第２板状部材１７１の上面１７１ａと、第３板状部材１８１の上面１８１ａとの間の角度が１８０度を超える角度範囲において、第２板状部材１７１と第３板状部材１８１とが回転可能となっている。換言すると、前記角度が１８０度になり、互いにフラットな状態となると、それ以上前記角度を狭めようとする方向への回転が規制される。 As shown in FIG. 15, the boarding / alighting aid 131 includes three plate-like members including a first plate-like member 161, a second plate-like member 171, and a third plate-like member 181. The first plate member 161 has an inner end 161 a of the vehicle 11 attached to the vehicle body 11 </ b> B via a mounting bracket 91. In the mounting structure, one end portion 161c of the first plate-like member 161 is held on the vehicle body 11B so as to be rotatable around a shaft 163j extending in the front-rear direction of the vehicle 11 along the floor surface F. The second plate member 171 is superimposed on the upper side of the first plate member 161 and is slidably connected to the first plate member 161. The sliding direction is the inside / outside direction of the vehicle 11. An outer end 171d of the vehicle 11 of the second plate member 171 is connected to an inner end 181c of the vehicle 11 of the third plate member 181, and the third plate member 181 is also the first plate. It can be superimposed on the upper side of the shaped member 161. The connection structure of the second plate-shaped member 171 and the third plate-shaped member 181 connects both the plate-shaped members so as to be rotatable around a shaft 183j extending in the front-rear direction of the vehicle 11, and the second plate-shaped member 171 is connected. The second plate-shaped member 171 and the third plate-shaped member 181 are rotatable in an angle range where the angle between the upper surface 171a of the first plate 181a and the upper surface 181a of the third plate-shaped member 181 exceeds 180 degrees. In other words, when the angle becomes 180 degrees and becomes flat with respect to each other, rotation in a direction in which the angle is further narrowed is restricted.

乗降補助具１３１は、使用状態と収納状態とに状態を切り替えることができる。収納状態では、図１５に示されるように、第１板状部材１６１の上に、互いにフラットに配置された第２板状部材１７１と第３板状部材１８１とが重ね合わされて、全体として短い板状を成し、床面Ｆに沿って配設される。使用状態へ切り替えるときは、図１６に示されるように、まず、乗降補助具１３１を車両１１の外方に向かって斜め上方へ傾け、第２板状部材１７１及び第３板状部材１８１を第１板状部材１６１に対して車両１１の外方へスライドさせて乗降補助具１３１を車両１１の外方へ伸張する。そして、第２板状部材１７１と第３板状部材１８１の連結部分Ｒ２を段差部１５の上に位置するように段差部１５に乗降補助具１３１を掛け渡し、第３板状部材１８１を、第２板状部材１７１に対して回転させて、車両１１の外方の端部１８１ｄを斜め下方に指向させる。以上の操作により、乗降補助具１３１は使用状態へ切り替えられる。乗降補助具１３１は、使用状態では、第１板状部材１６１の上面１６１ａと第２板状部材１７１の上面１７１ａとで、床面Ｆと段差部１５の間で傾斜する一連の内側斜面１４１を形成し、第３板状部材１８１の上面１８１ａで段差部１５から車両１１の外方へ下る外側斜面１５１を形成する。 The boarding / alighting aid 131 can be switched between a use state and a storage state. In the storage state, as shown in FIG. 15, the second plate member 171 and the third plate member 181 that are arranged flat on each other are superposed on the first plate member 161, and as a whole are short. It forms a plate shape and is disposed along the floor surface F. When switching to the use state, as shown in FIG. 16, first, the boarding / alighting aid 131 is inclined obliquely upward toward the outside of the vehicle 11, and the second plate-shaped member 171 and the third plate-shaped member 181 are moved to the first position. The boarding aid 131 is extended to the outside of the vehicle 11 by sliding the plate-like member 161 to the outside of the vehicle 11. Then, the boarding aid 131 is passed over the step portion 15 so that the connecting portion R2 of the second plate member 171 and the third plate member 181 is positioned on the step portion 15, and the third plate member 181 is By rotating with respect to the second plate member 171, the outer end 181 d of the vehicle 11 is directed obliquely downward. By the above operation, the boarding / alighting aid 131 is switched to the use state. When in use, the boarding / alighting aid 131 has a series of inner inclined surfaces 141 that are inclined between the floor surface F and the stepped portion 15 on the upper surface 161a of the first plate-shaped member 161 and the upper surface 171a of the second plate-shaped member 171. The outer slope 151 is formed on the upper surface 181a of the third plate-shaped member 181 so as to descend from the step portion 15 to the outside of the vehicle 11.

この乗降補助具１３１は、上記実施形態１の乗降補助具３１と同様に、使用状態としてから乗員Ｈの足Ａ１，Ａ２を載せて使用することで、受動的に動かされる足Ａ１，Ａ２を内側斜面１４１と外側斜面１５１とで案内して容易に段差部１５を乗越えさせることができる。 As with the boarding / alighting assisting tool 31 of the first embodiment, this boarding / aiding assisting tool 131 uses the legs A1 and A2 of the occupant H after placing them in use and then uses the legs A1 and A2 that are passively moved inside. It is possible to easily get over the step portion 15 by being guided by the slope 141 and the outer slope 151.

また、本実施形態の乗降補助具１３１は、図１５〜図１７に示されるように、乗員Ｈが降車するにあたり、収納状態のままで足Ａ１，Ａ２を載せて使用状態へ展開することで、足Ａ１，Ａ２を車両１１の外方へ移動させることもできる。この場合、収納状態である乗降補助具１３１に対して、上側に露出している第２板状部材１７１に足Ａ１，Ａ２が載せられる。その状態で、第２板状部材１７１及び第３板状部材１８１を車両１１の外方へスライドさせ、乗降補助具１３１を使用状態へ展開する。そうすると、足Ａ１，Ａ２は第２板状部材１７１に載せられたまま車両１１の外方へ移動させられる。そうすると、足Ａ１，Ａ２は、内側斜面１４１の上部へ位置する。その上で、シート２１の回転や介助者の援助により乗員Ｈの体や足Ａ１，Ａ２が動かされ、足Ａ１，Ａ２が内側斜面１４１及び外側斜面１５１に沿って移動することで、足Ａ１，Ａ２が段差部１５を容易に乗越えることができる。特に、介助者が乗員Ｈの足Ａ１，Ａ２を直接操作して車両１１の外方へずらして移動させる作業に替えて、乗降補助具３１のスライド操作により足Ａ１，Ａ２を移動させれば、介助者は、より容易に足Ａ１，Ａ２を移動させることができる。 In addition, as shown in FIGS. 15 to 17, the boarding aid 131 according to the present embodiment, when the occupant H gets off, places the feet A1 and A2 in the stored state and deploys them to the usage state. The feet A1 and A2 can be moved outward of the vehicle 11. In this case, the legs A1 and A2 are placed on the second plate-shaped member 171 exposed on the upper side with respect to the boarding / alighting assisting tool 131 in the stored state. In this state, the second plate-like member 171 and the third plate-like member 181 are slid outward from the vehicle 11, and the boarding / alighting aid 131 is deployed to the use state. Then, the feet A1 and A2 are moved outward of the vehicle 11 while being placed on the second plate member 171. Then, the legs A1 and A2 are located on the upper side of the inner slope 141. Then, the body of the occupant H and the legs A1 and A2 are moved by the rotation of the seat 21 and the assistance of the assistant, and the legs A1 and A2 move along the inner slope 141 and the outer slope 151, thereby A2 can easily get over the step portion 15. In particular, if the assistant moves the feet A1 and A2 by the sliding operation of the boarding aid 31 instead of the operation of shifting and moving the feet A1 and A2 of the occupant H directly to the outside of the vehicle 11, The assistant can move the legs A1 and A2 more easily.

［その他の実施形態］
なお、本発明は、上記実施形態及びその変更例に限定されない。例えば、乗降補助具は、予め車体に取り付けられて車両の一部を構成するものには限らず、車両とは独立した物品として装備することもできる。その場合、適時、介助を要する乗員の着座する適宜の座席の前の床面に設置して使用することができる。また、乗降補助具が予め車体に取り付けられる場合、車体の取り付け部位はフロアクロスメンバに限定されない。例えば、床面を形成するフロアパネルに取り付けることもできる。 [Other Embodiments]
In addition, this invention is not limited to the said embodiment and its modification. For example, the boarding / alighting aid is not limited to a part that is attached to the vehicle body in advance and constitutes a part of the vehicle, and can be equipped as an article independent of the vehicle. In that case, it can be installed and used on the floor in front of an appropriate seat on which an occupant requiring assistance is seated in a timely manner. Moreover, when the boarding / alighting aid is attached to the vehicle body in advance, the attachment site of the vehicle body is not limited to the floor cross member. For example, it can be attached to a floor panel forming the floor surface.

１１車両
１１Ｂ車体
１３乗降口
１３ａ（乗降口の）下縁部
１５段差部
２１シート
２３フロアクロスメンバ
２７ボルト
３１乗降補助具
４１内側斜面
４３内側斜面形成板状部
５１外側斜面
５３外側斜面形成板状部
６１ｃ一端部
６１第１板状部材
６７ａ，６７ｂレール
７１第２板状部材
７９ａ，７９ｂ，７９ｃ，７９ｄローラ
８１第３板状部材
８７ｊ，８７ｋ軸部位
９１取付ブラケット
９５ａ，９５ｂ固定部
１３１乗降補助具
１４１内側斜面
１５１外側斜面
１６１第１板状部材
１６３ｊ軸
１７１第２板状部材
１８１第３板状部材
１８３ｊ軸
Ａ１，Ａ２足
Ｆ床面
Ｈ乗員
DESCRIPTION OF SYMBOLS 11 Vehicle 11B Car body 13 Entrance / exit 13a Lower edge 15 (step of entrance / exit) Step part 21 Seat 23 Floor cross member 27 Bolt 31 Boarding aid 41 Inner slope 43 Inner slope formation plate-like part 51 Outer slope 53 Outer slope formation plate shape Part 61c One end 61 First plate member 67a, 67b Rail 71 Second plate member 79a, 79b, 79c, 79d Roller 81 Third plate member 87j, 87k Shaft portion 91 Mounting bracket 95a, 95b Fixing part 131 Entry / exit assistance Tool 141 Inner slope 151 Outer slope 161 First plate-like member 163j Axis 171 Second plate-like member 181 Third plate-like member 183j Axis A1, A2 Foot F Floor surface H Crew

Claims

In a vehicle having a stepped portion that is higher than a floor surface of a passenger compartment at an entrance, an inner slope that is installed on the floor surface and descends from the top of the stepped portion toward the floor surface, and A boarding aid for assisting the rider's feet to get over the stepped portion, comprising an outer slope that descends from the top toward the outside of the passenger compartment ,
The inner slope is formed by a plate-like inner slope forming plate-shaped portion,
The outer slope is formed by a plate-like outer slope forming plate-shaped portion,
The inner slope forming plate-like portion and at least a part of the outer slope forming plate-like portion can be put into a stored state,
The inner slope forming plate-like portion includes a first plate-like member constituting a lower end side of the inner slope, and a second plate-like member connected to the first plate-like member and constituting the upper end side of the inner slope. And consist of
The outer slope forming plate-like portion is composed of a third plate-like member connected to the second plate-like member,
A boarding / alighting assisting tool in which the second plate-like member and the third plate-like member are overlapped with the first plate-like member to be stored.

The boarding / alighting aid according to claim 1,
  The first plate member and the second plate member are slidably connected via a slide structure,
  The second plate-like member and the third plate-like member are rotatably connected via a hinge structure,
  By rotating the third plate member relative to the second plate member, the second plate member and the third plate member can be made flat.
  By sliding the second plate-like member and the third plate-like member that are made flat with respect to the first plate-like member, the second plate-like member, the third plate-like member, A boarding / alighting aid that is placed in the storage state by overlapping the first plate member.

A boarding aid according to claim 1 or claim 2,
A boarding / alighting aid that is attached to the car body together with the seat fixing part.