JP4303380B2

JP4303380B2 - Carrier with retractable legs

Info

Publication number: JP4303380B2
Application number: JP28250999A
Authority: JP
Inventors: 啓荒木
Original assignee: 啓荒木
Priority date: 1999-10-04
Filing date: 1999-10-04
Publication date: 2009-07-29
Anticipated expiration: 2019-10-04
Also published as: JP2001106085A

Description

【０００１】
【発明の属する技術分野】
この発明は、スーパーのショッピングカート、倉庫のコンテナ、車椅子などのように車輪により被運搬物を運搬可能な運搬具に属し、特にその脚部が格納式となっている運搬具に属する。
【０００２】
【従来の技術】
荷物や部材、身体障害者又は病人を保持して移動する運搬具として、台車、スーパーなどで用いられているショッピングカート、車椅子及び救急車用ストレッチャーが良く知られている。このうち、台車は物品を単に近距離間だけ移動させるのが目的であることから、被運搬物を載せる台は、車軸と同等の高さもしくはそれより若干高い位置に固定されている。ショッピングカートは、利用者が購入物品をかごに入れやすく且つかごを持ち上げてレジに置きやすい構造にする必要がある。このために、載せられたかごの高さ位置が人の腰と同程度になるように、かご保持部より下方に脚が延びている。車椅子は不使用時には左右方向に折り畳むことができる。また、ストレッチャーは、救急車に出し入れする必要上、折り畳み式の脚部を有している。
【０００３】
【発明が解決しようとする課題】
しかし、台車の場合、被搬送物を台車から自動車などの車両に移すためには、人がしゃがむか腰を折り曲げるかして被搬送物を自動車のトランクの高さまで持ち上げなければならない。また、スーパーマーケット等で物品をショッピングカートに載せて車両まで運搬し、当該車両で運搬しようとする場合にも、ショッピングカート前方のかご保持部や脚部が邪魔となり当該車両の荷室に入らず、いちいち商品をショッピングカートから載せかえる必要が有り、且つ目的地に到着後、当該物品を当該車両から手で降ろさなければならず、やはり上体や膝関節等を折り曲げる必要が有る。従って、ギックリ腰や膝痛等の障害や時間と労力を要し非常に煩雑であった。
【０００４】
一方、救急車用ストレッチャーの場合、脚部がその長さを保ったまま回転式に格納されるようになっているため、救急車のように前後方向に長い収納空間を有する車両にしか適用できなかった。また、車椅子を車両に載せるにはリフトやスロープが必要である。
本発明の第一の課題は、上記従来の問題を解決し、物品の車両への搬入、あるいは車両からの物品の搬出の際、物品の載せ替えに必要であった腰等への負担や時間と労力を軽減することである。第二の課題は、運搬具自体の車両への積み降ろしに伴う労力を軽減することである。
【０００５】
【課題を解決するための手段】
その課題を解決するために、この発明の運搬具は、
被運搬物を保持する保持部とその保持部を所定の高さ位置で支える脚部とを備える運搬具において、前記脚部が保持部下方の空間を上下から囲む円弧状に伸縮可能であることを特徴とする。
この運搬具によれば、保持部が脚部により所定の高さ位置、例えば平均的身長を有する大人が物品を出し入れするのに適当な高さ位置で支えられている。そして、その脚部が保持部下方の空間を上下から囲む円弧状をなしているので、その空間が逃げとなって脚部が車両のトランクや荷台に当たることなく、トランクや荷台の上に保持部を配置させることができる。従って、上体や膝を延ばしたまま保持部からトランクなどへ物品を移し替えることができる。
【０００６】
また、脚部がその円弧に沿って伸縮可能であるから、物品を保持部ごとトランクなどへ載せた後、脚部を収縮させて運搬具全体を車両内に収納し、目的地では逆に保持部を載せた状態で脚部を伸張させて地に着かせ、利用場所まで運搬することができる。即ち、運搬者の負担を軽減する一つの運搬具を荷受け場所と荷下ろし場所との両方で利用することができる。
【０００７】
前記脚部は中央の連結点を中心として鈍角で交差する方向に両端の連結点を有する連結部材を備えている。そして、一つの連結部材が他の連結部材と当該中央の連結点同士で連結されて対をなし、一つの対の連結部材が他の対の連結部材と互いに両端の連結点を介してパンタグラフ状に連結していることにより、前記脚部が円弧状に伸縮可能とされている。このような構成にすることにより、円弧状を保ちながら脚部を伸縮させることができ且つ保持部の自重により連結部材同士が規制し合って保持部を所望の高さに固定することができるからである。図１９に連結点同士を結ぶ線の交差角度が１５０°である場合の脚部の動作状態を側面図として示す。
【０００８】
また、前記保持部が、所定位置に固定されたガイドと上下方向に拘束しあいながら嵌合可能なガイドローラを下面又は側面に有すると好ましい。所定のガイドとは、例えばトラックの荷台などに運搬具とは別個に取り付けられるものである。そのようなガイドと嵌合可能なガイドローラを保持部が有することにより、保持部の重心が荷台などの外側に位置している状態で脚部が地面から離れても保持部が安定を保つことができる。従って、安心して脚部を収縮させることができる。
更に前記脚部が、保持部の前後方向に移動可能に保持部に固着されているときは、収縮させた脚部が保持部の平面視面積のほぼ範囲内に収まるので好ましい。更にまた、前記脚部の保持部側の端点に平歯車が取り付けられ、保持部にその平歯車と噛み合うウォーム歯車が取り付けられ、それら両歯車の回転に伴って脚部の伸縮がなされるようにすると、脚部の伸縮も楽になる。
【０００９】
【発明の実施の形態】
［実施形態１］
この発明の実施形態１を図１〜図４とともに説明する。図１は実施形態１の運搬具の脚部伸張状態を示す斜視図、図２は同じく側面図、図３はその脚部収縮状態を示す斜視図、図４は同じく側面図である。
運搬具は、物品を保持する箱状の保持部１とこの保持部１を所定の高さ位置で支える脚部とを備える。脚部は、連結点を２ヶ所持つ連結部材と、連結点を３ヶ所持ち、それらの連結点が“く”の字形の両端と中央に位置し、両端の連結点が中央の連結点を中心に鈍角をなす連結部材とをパンタグラフ状に連結して構成している。ここで、連結部材2、9、10は連結点を２ヶ所持つ連結部材である。連結部材3、4、5、6、7、8は連結点を３ヶ所持つ連結部材である。
【００１０】
連結部材２はその一方の連結点2-1が保持部１に回転自在に連結されており、連結部材２の他方の連結点2-2は連結部材３の連結点3-1と回転自在に連結されている。連結部材4はその連結点4-1が連結部材2の連結点2-1に対して略45°下後方の位置で保持部１に回転自在に連結されている。連結点2-1、2-2、3-2、4-1、2-1を結ぶ線分は平行四辺形を形成する。連結部材４の連結点4-2は連結部材３の連結点3-2と回転自在に連結されている。連結部材４の連結点4-3は連結部材５の連結点5-1と回転自在に連結されており、連結部材3の連結点3-3は連結部材６の連結点6-1と回転自在に連結されている。
【００１１】
以下同様に連結部材７、８が連結され、連結部材8の連結点8-3は連結部材9の連結点9-1と、連結部材7の連結点7-3は連結部材10の連結点10-1と各々回転自在に連結されている。また、連結部材9の連結点9-2と連結部材10の連結点10-2は回転自在に連結されている。
連結部材４には脚部全体を収縮、伸張するための把手11が固定されている。前車輪12および後車輪13は当該運搬具を移動させるための車輪である。保持部１を挟む反対側にも同じ構成の脚部があり、それらは同期的に稼動するように連結される。
【００１２】
この実施形態による運搬具では、物品保持部１が後方に円弧状の形状を成す脚部で支えられており、運搬具前部で物品保持部下部には障害物が無いため、物品保持部と脚部前端が車両のバンパーや荷室部を跨いで物品保持部を車両荷室部に挿入することができる。更に、物品保持部に対して脚部が延伸、格納できるので、物品保持部を車両荷室部床面に設置した後、脚部を収縮し、荷室内に収納することができる。物品を当該車両から搬出する際は再度脚部を伸張させることにより、運搬が可能となるので、物品の載せ替えの手間が省けるという効果が得られる。更に、脚部の格納状態では、前車輪12および後車輪13がバンパー14や荷室15に接触しないので、車両を汚さないという効果も得られる。
【００１３】
［実施形態２］
これは、図５及び図６に各々脚部伸張時及び収縮時の側面図として示すように、実施形態１の運搬具に保持部前車輪17、保持部後車輪18、ストッパー車輪19、ストッパー20及びバネ21を加えた例である。
保持部前部車輪17と保持部後部車輪18はその中心に対して回転自在に物品保持部1に取り付けられており、ストッパー車輪19はストッパー20に対して回転自在に取り付けられている。ストッパー20はその一端が物品保持部1に対して回転自在に保持部１の後部下端に取り付けられており、保持部に固定されたばね21によって常に下方に引っ張られている。
【００１４】
物品保持部を車両に搬入する際は、保持部前部車輪17、および保持部後部車輪18によって、荷室と物品保持部の間の摩擦および抵抗が減少するので挿入が円滑になる。脚部が車両に当たる直前で、バネ21によって押し下げられているストッパー車輪19が車両のバンパーに接触し、抵抗となり、更なる挿入が阻害される。この時点で、把手11を持ち上げると、脚部が車両各部と接触することなく、持ち上げることができる。
物品保持部1を車両から搬出する際は、保持部前車輪17、および保持部後車輪18によって、荷室と物品保持部の間の摩擦および抵抗が減少するので挿入が円滑になり、バネ21によって押し下げられているストッパー車輪20がバンパー14面より下がり目視により確認できる。この時点で、把手11を押し下げると、脚部が車両各部と接触することなく脚部を延伸できる。
【００１５】
［実施形態３］
これは、図７に示すように実施形態２の運搬具の保持部前方下部にガイドローラー22、車両の荷台にガイド23をそれぞれ取り付けた例である。ガイド２３の形状は、図８に斜視図として示す。
ローラー22とガイド23は、搬入時にはストッパー車輪19があがる前に上下方向に拘束しあいながら嵌合し、搬出時にはストッパー車輪19が下がったあとで離れる。脚部が地面と離れている状態で、把手11に過大な力がかかっても、保持部全体が後方に回転するのを防止することができる。
【００１６】
［実施形態４］
これは、図９に示すように実施形態２の運搬具に側部ローラー24、ガイドレール25、板状の連結部材26を加えることにより、脚部が保持部に対して前後方向に移動可能とされた例である。図１０にこれら追加の部材を分解斜視図として示す。
ガイドレール25は物品保持部1の側面に固定され、連結部材26には側部ローラー24が回転可能に取り付けられている。連結部材26には連結部材2の連結点2-1および連結部材4の連結点4-1が回転可能に取り付けられている。側部ローラー24はガイドレール25とかん合し、ガイドレール25に沿って摺動する。
脚部格納後、図１１に示すように脚部全体を物品保持部に対して前方に移動させることができるので、脚部をコンパクトに収納することができるという効果が得られる。
【００１７】
［実施形態５］
これは、図１２及び図１３に各々脚部伸張時及び収縮時の斜視図として示すように、カバー27、28、29を加えた例である。
カバー27、28、29は保持部１の左右の連結部材4、5および6のそれぞれを結ぶ様に設定されている。把手11を上下することにより、カバー27、28、29が連動して動くので、脚部が収縮した状態ではカバー27、28、29が目隠しとなり、外部から保持部の内容が見えにくいという効果が得られる。さらに、保持部の両側の連結部材が互いに連結されるので、脚部の剛性が向上する。
【００１８】
［実施形態６］
これは、図１４に示すように実施形態１の運搬具に更に脚部35及びもう一つの物品保持部36を加えた例である。物品保持部を横方向に増設し、搬送量を増加することができるという効果が得られる。また、片方に乳児等を乗せれば、商品と乳児が常に手の届く範囲に置いておくことができるという効果が得られる。
【００１９】
［実施形態７］
これは、図１５に脚部収縮時の側面図、図１６に一部拡大側面図として示すように、実施形態１の運搬具の物品保持部1の下部にロックレバー37及びロックスプリング38を備え、荷台15にアンカーバー39を備えた例である。
ロックレバー３７は、そのアームの先端が鉤状に曲がっており、保持部１の下端の四隅付近に回転可能に取り付けられている。ロックスプリング３８は、一端がその回転軸より偏芯位置に、他端がロックレバー３７のアームのほぼ中間位置に取り付けられ、常時前記偏芯位置方向にロックレバー３７を引っ張っている。アンカーバー３９は、荷台１５に設けられた凹部に荷台１５面より突出しないように荷台１５の左右方向に取り付けられている。
【００２０】
保持部を荷台１５に搬入した後、ロックスプリング３８の弾力に抗してロックレバー３７を回転させることにより、ロックレバー３７のアームをアンカーバー３９に噛み合わせる。前方のロックレバーと後方のそれとは、側面視で対称をなしており、そしてロックスプリング３８が常時引き方向に付勢しているので、一旦噛み合えば容易に外れることはない。従って、運搬具が車両に固定され、急停止や急カーブ走行の際に倒れることがない。
【００２１】
［実施形態８］
これは、図１７に示すように物品保持部1底面に傾斜をつけ、そこに波状の凹凸（波状部40）を設けた例である。
搬入時、物品保持部を荷室に搬入すると、波状部が荷室に接触し、さらに押し込むと、保持部が持ち上げられる。保持部が荷室で支えられるので、脚部への荷重が減少し、脚部を持ち上げることが容易になる。すなわち、車両側の荷室の高さが変わっても、搬入や脚部の格納が容易となる。
【００２２】
［実施形態９］
これは、図１８に示すように脚部の伸縮運動を平歯車４１とウォーム歯車４２との組み合わせで行うことにより、保持部の高さの微調整を可能にして荷台の高さが異なる車両に対しても適用可能にするとともに、小さい力で操作ができるようにした例である。
【００２３】
【発明の効果】
以上のように、この発明の運搬具によれば、運搬者に無理な負担をかけることなく、被運搬物及び運搬具自体を移動させることができるので有益である。
【図面の簡単な説明】
【図１】実施形態１の運搬具の脚部伸張状態を示す斜視図である。
【図２】同じく側面図である。
【図３】実施形態１の運搬具の脚部収縮状態を示す斜視図である。
【図４】同じく側面図である。
【図５】実施形態２の運搬具の脚部伸張状態を示す側面図である。
【図６】同じく脚部収縮状態を示す側面図である。
【図７】実施形態３の運搬具の脚部伸張状態を示す側面図である。
【図８】同運搬具に用いられるガイドの斜視図である。
【図９】実施形態４の運搬具の脚部収縮状態を示す側面図である。
【図１０】同運搬具に用いられるガイドレールと側部ローラーの分解斜視図である。
【図１１】同運搬具の脚部移動時の側面図である。
【図１２】実施形態５の運搬具の脚部伸張状態を示す斜視図である。
【図１３】同じく脚部収縮状態を示す斜視図である。
【図１４】実施形態６の運搬具の脚部伸張状態を示す斜視図である。
【図１５】実施形態７の運搬具の脚部収縮状態を示す側面図である。
【図１６】同運搬具の一部拡大斜視図である。
【図１７】実施形態８の運搬具の脚部伸張状態を示す側面図である。
【図１８】実施形態９の運搬具の脚部収縮状態を示す側面図である。
【図１９】この発明の運搬具の動作を説明する側面図である。
【符号の説明】
１保持部
２、３、４、５、６、７、８、９、１０、１６連結部材
２-１〜１０-２連結点[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a carrier such as a supermarket shopping cart, a warehouse container, a wheelchair and the like that can carry an object to be conveyed by wheels , and particularly to a carrier whose legs are retractable.
[0002]
[Prior art]
2. Description of the Related Art Shopping carts, wheelchairs, and ambulance stretchers used in carts, supermarkets, and the like are well known as transporters that hold and move luggage, members, disabled persons, or sick people. Among these, since the purpose of the carriage is to simply move the article for a short distance, the stage on which the object is carried is fixed at a height equivalent to or slightly higher than the axle. The shopping cart needs to be structured so that the user can easily put the purchased item in the car and can easily lift the car and place it in the cash register. For this reason, the legs extend below the car holding portion so that the height position of the placed car is approximately the same as the waist of the person. The wheelchair can be folded left and right when not in use. In addition, the stretcher has a foldable leg portion because it needs to be taken in and out of an ambulance.
[0003]
[Problems to be solved by the invention]
However, in the case of a trolley, in order to move the conveyed object from the trolley to a vehicle such as an automobile, the conveyed object must be lifted up to the height of the trunk of the automobile by a person squatting or bending the waist. In addition, even when an article is placed on a shopping cart in a supermarket or the like and transported to the vehicle, and the vehicle is to be transported by the vehicle, the car holding portion and the leg in front of the shopping cart do not enter the cargo room of the vehicle, It is necessary to transfer products from the shopping cart one by one, and after arriving at the destination, the article must be manually unloaded from the vehicle, and the upper body and knee joints must be folded. Accordingly, it is very complicated because it requires troubles such as back pain and knee pain, time and labor.
[0004]
On the other hand, in the case of an ambulance stretcher, the leg is stored in a rotating manner while maintaining its length, so it can only be applied to a vehicle having a long storage space in the front-rear direction like an ambulance. It was. In addition, a lift or slope is required to place the wheelchair on the vehicle.
The first problem of the present invention is to solve the above-mentioned conventional problems, and the burden and time on the waist and the like that were necessary for transferring the article when the article is carried into or out of the vehicle. And to reduce the labor. The second problem is to reduce the labor involved in loading and unloading the vehicle itself on the vehicle.
[0005]
[Means for Solving the Problems]
In order to solve the problem, the carrying device of the present invention is
In a transporting device including a holding part that holds a transported object and a leg part that supports the holding part at a predetermined height, the leg part can be expanded and contracted in an arc shape surrounding a space below the holding part from above and below. It is characterized by.
According to this carrying device, the holding part is supported by the leg part at a predetermined height position, for example, an appropriate height position for an adult having an average height to put in and out the article. And since the leg portion has an arc shape surrounding the space below the holding portion from above and below, the holding portion is placed on the trunk or loading platform without the space hitting the trunk or loading platform of the vehicle. Can be arranged. Therefore, the article can be transferred from the holding portion to the trunk or the like with the upper body and knees extended.
[0006]
In addition, since the leg part can be expanded and contracted along the arc, after placing the article together with the holding part on the trunk or the like, the leg part is contracted and the entire transport device is stored in the vehicle, and held at the destination in reverse. The leg can be stretched and placed on the ground with the part placed, and transported to the place of use. That is, one transporter that reduces the burden on the transporter can be used at both the load receiving place and the unloading place.
[0007]
The said leg part is provided with the connection member which has the connection point of both ends in the direction which cross | intersects at an obtuse angle centering on the center connection point. Then, one connecting member is connected to the other connecting member at the center connecting points to form a pair, and one pair of connecting members is connected to the other pair of connecting members through the connecting points at both ends. The leg portion can be expanded and contracted in an arc shape . By adopting such a configuration, the leg portion can be expanded and contracted while maintaining the arc shape, and the connecting members are regulated by the own weight of the holding portion, so that the holding portion can be fixed at a desired height. It is. FIG. 19 is a side view showing the operation state of the leg when the intersection angle of the line connecting the connecting points is 150 °.
[0008]
Moreover, it is preferable that the holding portion has a guide roller on the lower surface or side surface that can be fitted with the guide fixed in a predetermined position while being restrained in the vertical direction. The predetermined guide is, for example, attached to a truck bed or the like separately from the carrier. The holding part has a guide roller that can be fitted with such a guide, so that the holding part remains stable even when the leg part is separated from the ground in a state where the center of gravity of the holding part is located outside the loading platform or the like. Can do. Therefore, the legs can be contracted with confidence.
Further, when the leg portion is fixed to the holding portion so as to be movable in the front-rear direction of the holding portion, the contracted leg portion is preferably within the range of the planar view area of the holding portion. Furthermore, a spur gear is attached to an end point of the leg portion on the holding portion side, a worm gear meshing with the spur gear is attached to the holding portion, and the leg portion is expanded and contracted as the two gears rotate. This makes it easy to extend and contract the legs.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a leg stretched state of the carrier of Embodiment 1, FIG. 2 is a side view, FIG. 3 is a perspective view showing a leg contracted state, and FIG. 4 is a side view.
The carrying device includes a box-shaped holding unit 1 that holds an article and leg portions that support the holding unit 1 at a predetermined height position. The leg part has two connecting points and three connecting points. These connecting points are located at both ends and the center of the "<" shape, and the connecting points at both ends are centered on the central connecting point. The connecting member having an obtuse angle is connected in a pantograph shape. Here, the connecting members 2, 9, and 10 are connecting members having two connecting points. The connecting members 3, 4, 5, 6, 7, and 8 are connecting members having three connecting points.
[0010]
The connecting member 2 has one connecting point 2-1 rotatably connected to the holding portion 1, and the other connecting point 2-2 of the connecting member 2 is rotatable with the connecting point 3-1 of the connecting member 3. It is connected. The connecting member 4 is rotatably connected to the holding portion 1 at a position where the connecting point 4-1 is approximately 45 ° rearward with respect to the connecting point 2-1 of the connecting member 2. Line segments connecting the connection points 2-1, 2-2, 3-2, 4-1, 2-1 form a parallelogram. The connecting point 4-2 of the connecting member 4 is rotatably connected to the connecting point 3-2 of the connecting member 3. The connecting point 4-3 of the connecting member 4 is rotatably connected to the connecting point 5-1 of the connecting member 5, and the connecting point 3-3 of the connecting member 3 is rotatable to the connecting point 6-1 of the connecting member 6. It is connected to.
[0011]
Similarly, the connecting members 7 and 8 are connected, the connecting point 8-3 of the connecting member 8 is the connecting point 9-1 of the connecting member 9, and the connecting point 7-3 of the connecting member 7 is the connecting point 10 of the connecting member 10. -1 and each are rotatably connected. Further, the connecting point 9-2 of the connecting member 9 and the connecting point 10-2 of the connecting member 10 are rotatably connected.
A grip 11 for contracting and extending the entire leg is fixed to the connecting member 4. The front wheel 12 and the rear wheel 13 are wheels for moving the carrier. There are also leg portions of the same configuration on the opposite side of the holding portion 1, and they are connected so as to operate synchronously.
[0012]
In the carrying device according to this embodiment, the article holding unit 1 is supported by a leg portion having a circular arc shape in the rear, and there is no obstacle at the lower part of the article holding unit at the front part of the carrying device. The article holding part can be inserted into the vehicle luggage compartment part with the front end of the leg straddling the bumper or luggage compartment part of the vehicle. Furthermore, since the leg portion can be extended and stored with respect to the article holding portion, the leg portion can be contracted and stored in the cargo compartment after the article holding portion is installed on the floor surface of the vehicle cargo compartment portion. When the article is carried out of the vehicle, it is possible to carry the article by extending the leg portion again, so that it is possible to save the trouble of changing the article. Furthermore, since the front wheel 12 and the rear wheel 13 do not contact the bumper 14 or the luggage compartment 15 in the retracted state of the leg portion, an effect that the vehicle is not soiled can be obtained.
[0013]
[Embodiment 2]
As shown in FIGS. 5 and 6 as side views when the leg portion is extended and contracted, respectively, the carrier of the first embodiment includes a holding portion front wheel 17, a holding portion rear wheel 18, a stopper wheel 19, and a stopper 20 as shown in FIG. And an example in which a spring 21 is added.
The holding unit front wheel 17 and the holding unit rear wheel 18 are attached to the article holding unit 1 so as to be rotatable with respect to the center thereof, and the stopper wheel 19 is attached to the stopper 20 so as to be rotatable. One end of the stopper 20 is attached to the lower end of the rear portion of the holding portion 1 so as to be rotatable with respect to the article holding portion 1 and is always pulled downward by a spring 21 fixed to the holding portion.
[0014]
When the article holding part is carried into the vehicle, the holding part front wheel 17 and the holding part rear wheel 18 reduce the friction and resistance between the luggage compartment and the article holding part, thereby facilitating insertion. Immediately before the leg hits the vehicle, the stopper wheel 19 pushed down by the spring 21 comes into contact with the bumper of the vehicle and becomes a resistance, thereby preventing further insertion. At this point, when the handle 11 is lifted, the leg portion can be lifted without contacting each part of the vehicle.
When carrying the article holding unit 1 out of the vehicle, the holding unit front wheel 17 and the holding unit rear wheel 18 reduce friction and resistance between the cargo compartment and the article holding unit, so that the insertion becomes smooth and the spring 21 The stopper wheel 20 pushed down by the lowering of the bumper 14 can be confirmed visually. At this point, when the handle 11 is pushed down, the leg can be extended without contacting the vehicle parts.
[0015]
[Embodiment 3]
This is an example in which, as shown in FIG. 7, a guide roller 22 is attached to the lower front part of the holding part of the carrying device of Embodiment 2 and a guide 23 is attached to the loading platform of the vehicle. The shape of the guide 23 is shown as a perspective view in FIG.
The roller 22 and the guide 23 are fitted while being restrained in the vertical direction before the stopper wheel 19 is lifted during loading, and are separated after the stopper wheel 19 is lowered during unloading. Even if an excessive force is applied to the handle 11 in a state where the leg portion is separated from the ground, the entire holding portion can be prevented from rotating backward.
[0016]
[Embodiment 4]
As shown in FIG. 9, by adding the side roller 24, the guide rail 25, and the plate-like connecting member 26 to the carrying device of the second embodiment, the leg portion can be moved in the front-rear direction with respect to the holding portion. This is an example. FIG. 10 shows these additional members as an exploded perspective view.
The guide rail 25 is fixed to the side surface of the article holding unit 1, and a side roller 24 is rotatably attached to the connecting member 26. A connecting point 2-1 of the connecting member 2 and a connecting point 4-1 of the connecting member 4 are rotatably attached to the connecting member 26. The side roller 24 engages with the guide rail 25 and slides along the guide rail 25.
After the leg portion is stored, the entire leg portion can be moved forward with respect to the article holding portion as shown in FIG. 11, so that the effect that the leg portion can be stored compactly is obtained.
[0017]
[Embodiment 5]
This is an example in which covers 27, 28, and 29 are added as shown in FIGS. 12 and 13 as perspective views when the legs are extended and contracted, respectively.
The covers 27, 28, and 29 are set so as to connect the left and right connecting members 4, 5, and 6 of the holding unit 1. By moving the handle 11 up and down, the covers 27, 28 and 29 move in conjunction with each other. Therefore, when the legs are contracted, the covers 27, 28 and 29 are blindfolded, and the contents of the holding part are difficult to see from the outside. can get. Furthermore, since the connecting members on both sides of the holding portion are connected to each other, the rigidity of the leg portion is improved.
[0018]
[Embodiment 6]
This is an example in which a leg portion 35 and another article holding portion 36 are further added to the carrying device of the first embodiment as shown in FIG. It is possible to increase the conveyance amount by adding the article holding unit in the lateral direction. Further, if an infant or the like is placed on one side, an effect that the product and the infant can be always within the reach of the hand can be obtained.
[0019]
[Embodiment 7]
As shown in FIG. 15 as a side view when the legs are contracted and as a partially enlarged side view in FIG. 16, a lock lever 37 and a lock spring 38 are provided at the lower part of the article holding portion 1 of the carrying device of the first embodiment. This is an example in which an anchor bar 39 is provided on the loading platform 15.
The lock lever 37 has its arm bent in a bowl shape and is rotatably attached to the vicinity of the four corners of the lower end of the holding portion 1. One end of the lock spring 38 is attached to an eccentric position with respect to the rotating shaft, and the other end is attached to a substantially intermediate position of the arm of the lock lever 37, and the lock lever 37 is always pulled in the direction of the eccentric position. The anchor bar 39 is attached in the left-right direction of the loading platform 15 so as not to protrude from the surface of the loading platform 15 in a recess provided in the loading platform 15.
[0020]
After carrying the holding portion into the loading platform 15, the arm of the lock lever 37 is engaged with the anchor bar 39 by rotating the lock lever 37 against the elasticity of the lock spring 38. The front lock lever and the rear lock lever are symmetrical in side view, and the lock spring 38 is constantly biased in the pulling direction, so that once it is engaged, it cannot be easily disengaged. Therefore, the carrying device is fixed to the vehicle, and does not fall down during a sudden stop or a sharp turn.
[0021]
[Embodiment 8]
This is an example in which the bottom surface of the article holding part 1 is inclined as shown in FIG. 17 and wavy irregularities (the waved part 40) are provided there.
At the time of carry-in, when the article holding part is carried into the cargo compartment, the corrugated part comes into contact with the cargo compartment, and when further pushed in, the holding part is lifted. Since the holding portion is supported by the luggage compartment, the load on the leg portion is reduced, and it is easy to lift the leg portion. That is, even if the height of the cargo compartment on the vehicle side changes, it becomes easy to carry in and store the legs.
[0022]
[Embodiment 9]
As shown in FIG. 18, the extension and contraction movement of the leg portion is performed by a combination of the spur gear 41 and the worm gear 42, so that the height of the holding portion can be finely adjusted so that the height of the loading platform is different. This is also an example in which it can be applied to an operation and can be operated with a small force.
[0023]
【The invention's effect】
As described above, according to the transporting device of the present invention, it is advantageous because the transported object and the transporting device itself can be moved without imposing an excessive burden on the transporter.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a leg extension state of a carrying device according to a first embodiment.
FIG. 2 is a side view of the same.
FIG. 3 is a perspective view showing a leg contraction state of the carrying device according to the first embodiment.
FIG. 4 is a side view of the same.
FIG. 5 is a side view showing a leg extended state of the carrying device according to the second embodiment.
FIG. 6 is a side view showing the leg contracted state.
FIG. 7 is a side view showing a leg extension state of the carrying device according to the third embodiment.
FIG. 8 is a perspective view of a guide used in the carrying device.
FIG. 9 is a side view showing a leg contraction state of the carrying device according to the fourth embodiment.
FIG. 10 is an exploded perspective view of a guide rail and side rollers used in the carrying device.
FIG. 11 is a side view of the carrier when the leg portion is moved.
FIG. 12 is a perspective view showing a leg extension state of the carrying device according to the fifth embodiment.
FIG. 13 is a perspective view showing the leg contracted state.
FIG. 14 is a perspective view showing a leg extended state of the carrying device according to the sixth embodiment.
FIG. 15 is a side view showing a leg contracted state of the carrying device according to the seventh embodiment.
FIG. 16 is a partially enlarged perspective view of the carrier.
FIG. 17 is a side view showing a leg extension state of the carrying device according to the eighth embodiment.
FIG. 18 is a side view showing a leg contraction state of the carrying device according to the ninth embodiment.
FIG. 19 is a side view for explaining the operation of the carrying device of the present invention.
[Explanation of symbols]
1 Holding part 2, 3, 4, 5, 6, 7, 8, 9, 10, 16 Connecting member 2-1 to 10-2 Connecting point

Claims

It provided with a holding portion for holding the transported article that holder and the leg support in a predetermined height position and the wheels attached to its legs bottom, transportable der Ru vehicles to be transported article by the wheels In
The leg includes a connecting member having connecting points at both ends in a direction intersecting at an obtuse angle with a central connecting point as a center, and one connecting member is connected to another connecting member at the central connecting point to form a pair. None, because one pair of connecting members is connected to the other pair of connecting members in a pantograph shape through connecting points at both ends, the leg portion has an arc shape surrounding the space below the holding portion from above and below. A carrier characterized by being extensible.

The carrier according to claim 1 , wherein the leg portion is fixed to the holding portion so as to be movable in the front-rear direction of the holding portion.

The spur gear is attached to the end point of the holding portion side of the leg portion, a worm gear meshing with the spur gear is attached to the holding portion, claim 1 or 2 telescopic leg with the rotation of their two gears is made The transport device described in 1.