JP2003056266A - Foldable stepladder with fixed wheel - Google Patents
Foldable stepladder with fixed wheelInfo
- Publication number
- JP2003056266A JP2003056266A JP2001246665A JP2001246665A JP2003056266A JP 2003056266 A JP2003056266 A JP 2003056266A JP 2001246665 A JP2001246665 A JP 2001246665A JP 2001246665 A JP2001246665 A JP 2001246665A JP 2003056266 A JP2003056266 A JP 2003056266A
- Authority
- JP
- Japan
- Prior art keywords
- stepladder
- wheel
- columns
- folding
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Ladders (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、折り畳み式の脚立
であって、使用時の安定性が高く、移動が便利な固定車
輪付き折り畳み脚立に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable stepladder with a fixed wheel, which is a foldable stepladder which has high stability during use and is convenient to move.
【０００２】[0002]
【従来の技術】各家庭、スーパーマーケット、ディスカ
ウントショップ等では、やや高所にある物を取り出した
り、低所にある物をやや高所に置いたりする場合、脚立
を使用する。脚立は一対の脚体を前後に開脚して使用す
るため、そのまま収納すると、収納スペースを採り不便
である。このため、近年、ほとんどの脚立は折り畳み式
である。2. Description of the Related Art At homes, supermarkets, discount shops, etc., a stepladder is used to take out an object at a slightly high place or put an object at a low place in a slightly high place. Since the stepladder is used by opening and closing the pair of legs forward and backward, it is inconvenient if it is stored as it is because it takes up a storage space. For this reason, most stepladders have been foldable in recent years.
【０００３】一方、女性の現場進出は目覚しいものがあ
り、スーパーマーケットやディスカウントショップにお
いては、これら折り畳み脚立を使用し、元の収納場所に
戻すことなど一連の作業を女性が行う機会も多い。この
場合、折り畳み脚立の軽量化が進んでいるとはいえ、折
り畳んだまま移動させる場合の安全性が問題となる。On the other hand, there are many cases in which women advance to the field, and in supermarkets and discount shops, there are many opportunities for women to perform a series of operations such as using these folding stepladders and returning them to their original storage locations. In this case, although the weight of the folding stepladder has been reduced, the safety in moving the folded stepladder becomes a problem.
【０００４】これを解決するものとして、図１１に示す
ように、両側の平行四辺形リンク体１０２、１０２の間
には複数枚の踏み板１０１ａ、１０１ｂ、１０１ｃを取
り付けたハシゴ１０３と、該ハシゴ１０３を支える脚体
１０４からなり、脚体１０４の上端支持棒１０５に揺動
可能に設けたアーム１０６によって上桟下縁に形成した
嵌合溝に嵌合するものであって、上傾斜桟の下端にキャ
スター１０７を取り付けた折り畳み式脚立１１０が開示
されている(特開平１０-１６９３４４号公報)。この折
り畳み式脚立１１０によれば、折り畳んだ後、該折り畳
み式脚立１１０を持ち運ぶ場合には完全に持ち上げるこ
となく、キャスター１０７を転がして運ぶことができ
る。このため、それ程の力を必要とせず移動させること
ができ、便利である。As a solution to this, as shown in FIG. 11, a ladder 103 having a plurality of treads 101a, 101b, 101c mounted between the parallelogram links 102, 102 on both sides, and the ladder 103. A leg 104 for supporting the upper leg of the upper leg, and an arm 106 swingably provided on an upper end support rod 105 of the leg 104 fits into a fitting groove formed at a lower edge of the upper leg, and a lower end of the upper inclined leg. A foldable stepladder 110 having casters 107 attached thereto is disclosed (JP-A-10-169344). According to this foldable stepladder 110, the caster 107 can be rolled and carried without being completely lifted when carrying the foldable stepladder 110 after folding. For this reason, it is convenient because it can be moved without requiring such a force.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記折
り畳み式脚立１１０は、使用時には、キャスター１０７
が地表面や床面に接地した状態であるため、安定性がよ
いとは言えない。また、この安定性を確保するため、下
桟１０８を地表面に設置させているが、十分ではなく、
且つ凹凸のある地表面には適用できず、見栄え悪いとい
う問題もある。However, when the foldable stepladder 110 is used, the caster 107 is used.
Since it is in contact with the ground and floor, it cannot be said that stability is good. Further, in order to ensure this stability, the lower crosspiece 108 is installed on the ground surface, but it is not enough,
Moreover, it cannot be applied to a ground surface having irregularities, and there is a problem that it does not look good.
【０００６】従って、本発明の目的は、使用時の安定性
が高く、移動が便利な固定車輪付き折り畳み脚立を提供
することにある。Therefore, an object of the present invention is to provide a folding stepladder with a fixed wheel which is highly stable in use and convenient to move.
【０００７】[0007]
【課題を解決するための手段】かかる実情において、本
発明者は鋭意検討を行った結果、折り畳み脚立の前脚で
ある支柱の下方に固定車輪を設け、折り畳み脚立を使用
する際、すなわち、開脚状態で、固定車輪が地表面や床
面に接地せず、折り畳んだ状態の垂直姿勢では、固定車
輪のみが地表面に接地する状態となるような位置で該固
定車輪を配設すれば、使用時の安定性が高く、持ち運ぶ
場合にはそれ程の力を必要とせず、便利であること、更
に、固定車輪の車軸を昇降面に直交するように設置し、
該折り畳み脚立を横滑り状態で運搬するようにすれば、
移動が格段に容易になることなどを見出し、本発明を完
成するに至った。Under such circumstances, the present inventor has conducted diligent studies, and as a result, when a fixed wheel is provided below a pillar which is a front leg of the folding stepladder and the folding stepladder is used, that is, when the folding stepladder is opened. In this state, the fixed wheel does not contact the ground surface or the floor surface, but in the folded vertical posture, if the fixed wheel is installed at a position where only the fixed wheel contacts the ground surface, It has high stability at the time, it does not require so much force when carrying it, it is convenient, and furthermore, the axle of the fixed wheel is installed so as to be orthogonal to the lifting surface,
If the folding stepladder is carried in a sideslip state,
The present invention has been completed by finding that the movement is much easier.
【０００８】すなわち、本発明は、昇降面が片面の折り
畳み脚立の昇降面側の両支柱の下方に固定車輪を設けて
なり、前記固定車輪は、該固定車輪の車軸が前記昇降面
に対して直交又は平行のいずれかに配設されて、使用時
には前記車軸に取り付けられた車輪の下端が、鉛直方向
に対して、前記両支柱の下端と同じ位置か上方位置にあ
り、折り畳み後の直立姿勢では、前記車軸に取り付けら
れた車輪の下端が、鉛直方向に対して、前記両支柱の下
端より下方位置になるように設置されることを特徴とす
る固定車輪付き折り畳み脚立を提供するものである。か
かる構成をとることにより、片面昇降の折り畳み脚立に
おいて、これを使用する際、固定車輪が床面に接地せ
ず、ゴム材などの支柱端具で接地するため使用時の安定
性が高い。また、折り畳んだ状態の直立姿勢では、固定
車輪のみが床面に接地するため、持ち運ぶ場合には該固
定車輪を転がして運ぶことができる。このため、それ程
の力を必要とせず女性でも安全且つ容易に移動させるこ
とができる。特に、固定車輪の車軸を昇降面に直交させ
るように設置し、該折り畳み脚立を横滑り状態で運搬す
れば、操作性がよく、狭い通路でも移動が極めて容易で
楽となる。That is, according to the present invention, fixed wheels are provided below both columns on the side of the ascending / descending surface of the folding stepladder having a single elevating surface, and the fixed wheel has an axle of the fixed wheel with respect to the elevating surface. The lower end of the wheel, which is arranged either orthogonally or parallelly and is attached to the axle during use, is at the same position as or above the lower ends of the two columns in the vertical direction, and is in an upright posture after folding. Then, the folding stepladder with a fixed wheel is characterized in that the lower ends of the wheels attached to the axle are installed so as to be located below the lower ends of the both columns in the vertical direction. . By adopting such a configuration, when the folding stepladder is lifted on one side, when it is used, the fixed wheel is not grounded to the floor surface, but is grounded by a support end tool such as a rubber material, so that stability in use is high. Further, in the upright posture in the folded state, only the fixed wheel is in contact with the floor surface, so that the fixed wheel can be rolled and carried when carrying. For this reason, even a woman can safely and easily move without requiring such a force. Particularly, if the axles of the fixed wheels are installed so as to be orthogonal to the ascending / descending surface and the folding stepladder is transported in a sideways state, the operability is good and the movement is extremely easy and easy even in a narrow passage.
【０００９】また、本発明は、昇降面が片面の折り畳み
脚立の後脚体の両支柱の下方に固定車輪を設けてなり、
前記固定車輪は、該固定車輪の車軸が前記後脚体の両支
柱間で形成される面に対して直交又は平行のいずれかに
配設されて、使用時には前記車軸に取り付けられた車輪
の下端が、鉛直方向に対して、前記両支柱の下端と同じ
位置か上方位置にあり、折り畳み後の直立姿勢では、前
記車軸に取り付けられた車輪の下端が、前記両支柱の下
端より下方位置になるように設置されることを特徴とす
る固定車輪付き折り畳み脚立を提供するものである。片
面昇降の折り畳み脚立において、折り畳んだ際、昇降面
側の支柱と後脚体側の支柱の下端が鉛直方向に略揃うよ
うな形態のものであれば、後脚体側の支柱の下方に固定
車輪を取り付けても、同様の効果を奏することができ
る。Further, according to the present invention, fixed wheels are provided below both columns of a rear leg of a folding stepladder having a single lifting surface.
The fixed wheel is arranged such that an axle of the fixed wheel is orthogonal or parallel to a surface formed between both columns of the rear leg body, and the lower end of the wheel attached to the axle when used. Is in the same position as or above the lower ends of the two columns in the vertical direction, and in the upright posture after folding, the lower ends of the wheels attached to the axles are located below the lower ends of the two columns. The present invention provides a folding stepladder with fixed wheels, which is installed as described above. In the case of a folding stepladder with one-sided lift, if it is of a form in which the lower ends of the support pillars on the lift surface and the rear leg body are approximately aligned vertically when folded, the fixed wheels should be placed below the support pillars on the rear leg body. Even if attached, the same effect can be obtained.
【００１０】また、本発明は、昇降面が両面の折り畳み
脚立のいずれかの昇降面側の両支柱の下端に固定車輪を
設けてなり、前記固定車輪は、該固定車輪の車軸が前記
昇降面に対して直交又は平行のいずれかに配設されて、
使用時には前記車軸に取り付けられた車輪の下端が、鉛
直方向に対して、前記両支柱の下端と同じ位置か上方位
置にあり、折り畳み後の直立姿勢では、前記車軸に取り
付けられた車輪の下端が、前記両支柱の下端より下方位
置になるように設置されることを特徴とする固定車輪付
き折り畳み脚立を提供するものである。かかる構成を採
ることにより、昇降面が両面の折り畳み脚立で、折り畳
み後の前後の両支柱の下端が鉛直方向に揃うようなもの
でも、特定位置に取り付けた固定車輪の作用により、前
記発明と同様の効果を奏することができる。Further, according to the present invention, fixed wheels are provided at the lower ends of both columns on either side of the lifting step of the folding stepladder whose both sides are raised and lowered, and the fixed wheel has an axle of the fixed wheel. Is either orthogonal or parallel to
At the time of use, the lower end of the wheel attached to the axle is at the same position or the upper position as the lower end of the both columns with respect to the vertical direction, and in the upright posture after folding, the lower end of the wheel attached to the axle is And a foldable stepladder with fixed wheels, which is installed so as to be located below the lower ends of the columns. By adopting such a configuration, even when the elevating surface is a folding stepladder with both sides and the lower ends of both the front and rear columns after folding are aligned in the vertical direction, due to the action of the fixed wheel attached at a specific position, the same as the above invention The effect of can be produced.
【００１１】[0011]
【発明の実施の形態】次に、本発明の第１の実施の形態
における固定車輪付き折り畳み脚立を図１〜図６を参照
して説明する。図１は本例の固定車輪付き折り畳み脚立
の斜視図、図２は図１の固定車輪部分の拡大図、図３は
固定車輪の分解組み立て図、図４は使用状態（Ａ）、折
り畳み途中状態（Ｂ）、折り畳み後の直立姿勢（Ｃ）を
順に示す図、図５は運搬状態を説明する側面図(Ａ) 及び
正面図（Ｂ）を示し、図６は運搬状態を上から見た図で
ある。図６中、矢印は進行方向を示す。BEST MODE FOR CARRYING OUT THE INVENTION Next, a folding stepladder with fixed wheels according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a folding stepladder with a fixed wheel of this example, FIG. 2 is an enlarged view of the fixed wheel portion of FIG. 1, FIG. 3 is an exploded view of the fixed wheel, FIG. 4 is a use state (A), a state in the middle of folding. (B), the figure which shows the upright posture after folding (C) in order, FIG. 5 shows the side view (A) and front view (B) which explain a conveyance state, and FIG. 6 is the figure which looked at the conveyance state from the top. Is. In FIG. 6, the arrow indicates the traveling direction.
【００１２】本例の固定車輪付き折り畳み脚立１０は、
昇降面３が片面のものであり、固定車輪２が付設される
折り畳み脚立部分は公知のものである。すなわち、固定
車輪付き折り畳み脚立１０は、二本の支柱１、１に差し
渡しで固設される３本の桟部材６１ａ、６１ｂ、６１ｃ
で形成されるハシゴ状骨格に、後脚体７、７を支柱１、
１の中央やや上方に回動自在に取り付け、更に、桟部材
６１ａ、６１ｂ、６１ｃに一端が回動自在に取り付けら
れた踏み板６ａ、６ｂ、６ｃの他端近傍の側面にリンク
部材８、８を取り付け、互いに平行をなすリンク部材
８、８と、これに踏み板６ａ、６ｂ、６ｃを互いに連結
して平行四辺形リンク体を形成し、更に、後脚体７、７
の上方に差し渡しで固設された棒部材６３と、踏み板６
ａの裏面に付設される軸受け部６２との間にリンク部材
６１を設け、踏み板６ａとリンク部材６１で三角リンク
を形成して、折り畳み自在の構造としたものである。The folding stepladder 10 with fixed wheels of this example is
The ascending / descending surface 3 is one-sided, and the folding step portion to which the fixed wheel 2 is attached is publicly known. That is, the folding stepladder 10 with the fixed wheels is provided with three crosspiece members 61a, 61b, 61c which are fixed to the two columns 1 and 1 in a fixed manner.
In the ladder-shaped skeleton formed by
The link members 8 are attached to the side surfaces near the other ends of the step plates 6a, 6b, and 6c rotatably attached to the upper part of the center of FIG. Link members 8 which are attached to each other and which are parallel to each other, and foot plates 6a, 6b and 6c are connected to each other to form a parallelogram link body.
Bar member 63 that is fixedly provided above the floor and the footboard 6
A link member 61 is provided between it and a bearing portion 62 attached to the back surface of a, and a triangular link is formed by the step plate 6a and the link member 61 so that the structure is foldable.
【００１３】固定車輪２は、昇降面側の支柱１、１の下
方に設けられる。固定車輪２は車軸２１と、車輪２２
と、支柱端具９ａと、保護カバー１１とから構成されて
いる。車軸２１は支柱側から順に車軸基部２１１と、車
軸本体部２１２と、螺子部２１３とから構成され、車軸
基部２１１が支柱１の下端部に固定され、車軸２１が昇
降面３に対して直交で且つ前側に突出するように付設さ
れる。また、支柱端具９ａは、滑り止め機能を有する嵌
め込み部材であり、支柱１、１の両側壁内に嵌る幅寸法
であって、且つ車軸基部２１１が嵌る空間部９１ａ、該
支柱端具９ａを支柱に固定するための螺子棒穴９２ａを
有している。保護カバー１１は、付設が任意の部材であ
り、昇降者が特に下降の際、車輪に足を取られて、怪我
をしないように設けられると共に、車輪２２の損傷をも
防止するものである。保護カバー１１は、支柱１が嵌る
空間部１１４と、取り付け用螺子棒が通される挿通穴１
１３とを備える固定部１１２と、車輪２２の上方を覆う
半カップ状のカバー部材１１１とからなる。本発明に係
る固定車輪２は、車輪本体２２ａの径と、支柱端具９ａ
の螺子棒穴９２ａから下端までの寸法は、後述する本発
明の効果を具現するために慎重に決定される。The fixed wheel 2 is provided below the columns 1 and 1 on the elevation surface side. The fixed wheel 2 includes an axle 21 and a wheel 22.
And a column end tool 9a and a protective cover 11. The axle 21 is composed of an axle base portion 211, an axle body portion 212, and a screw portion 213 in order from the strut side, the axle base portion 211 is fixed to the lower end portion of the strut 1, and the axle shaft 21 is orthogonal to the ascending / descending surface 3. In addition, it is attached so as to project to the front side. In addition, the column end fitting 9a is a fitting member having a slip preventing function, has a width dimension that fits into both side walls of the columns 1, 1, and is a space portion 91a into which the axle base 211 fits, and the column end fitting 9a. It has a screw rod hole 92a for fixing to a column. The protective cover 11 is an optional member, and is provided so as not to be injured by the wheel being lifted by the wheel when the elevator person descends, and also protects the wheel 22 from damage. The protective cover 11 has a space 114 into which the support 1 is fitted and an insertion hole 1 through which a mounting screw rod is inserted.
The fixing portion 112 includes a fixing portion 112 and a half cup-shaped cover member 111 that covers the wheel 22 from above. The fixed wheel 2 according to the present invention has a diameter of the wheel body 22a and a support end tool 9a.
The dimension from the screw rod hole 92a to the lower end is carefully determined in order to realize the effects of the present invention described later.
【００１４】固定車輪２を組み付けるには、先ず、車輪
２２を車軸２１に組み付けるか、あるいは支柱端具９ａ
を支柱１に嵌め込むかいずれかを行う。車輪２２の車軸
２１への挿入と螺合は、ワッシャー２３、車輪本体２２
ａ、ワッシャー２３及びナット２４の順で行われ、車輪
本体２２ａは車軸２１に回転自在に取り付けられる。支
柱端具９ｃは車軸基部２１１を支柱端具９ａの空間部９
１ａに嵌め込むように、且つ支柱１の両側壁内に嵌るよ
うに挿入する。この場合、支柱側の螺子棒貫通穴１１７
と、螺子棒穴９２ａが一致するようにする。次いで、保
護カバー１１を保護カバー１１の嵌合部１１４が支柱１
の外側に嵌るように押し込み、且つ支柱側の螺子棒貫通
穴１１７と挿通穴１１３とが一致するように調整する。
次いで、ボルト１２を挿通穴１１３と、支柱側の螺子棒
貫通穴１１７と、支柱端具９ａの螺子棒穴９２ａに通し
て、ナット１３で固定する。In order to assemble the fixed wheel 2, first, the wheel 22 is assembled to the axle 21, or the support end tool 9a is used.
Either be fitted into the column 1. The wheel 22 is inserted into the axle 21 and screwed into the washer 23, the wheel body 22.
The wheel body 22a is rotatably attached to the axle 21 in the order of a, the washer 23, and the nut 24. The pillar end tool 9c has the axle base 211 and the space 9 of the pillar end tool 9a.
It is inserted so as to fit into 1a and fit into both side walls of the column 1. In this case, the screw rod through hole 117 on the column side
And the screw rod hole 92a are aligned with each other. Then, the protective cover 11 is attached to the support 1 by the fitting portion 114 of the protective cover 11.
The screw rod through hole 117 and the insertion hole 113 are adjusted so that the screw rod through hole 117 and the insertion hole 113 on the column side are aligned with each other.
Next, the bolt 12 is passed through the insertion hole 113, the support rod side screw rod through hole 117, and the support rod end tool 9a screw rod hole 92a, and is fixed by the nut 13.
【００１５】このように組みつけられた固定車輪２は、
図４（Ａ）に示すように、使用時には車軸２１に取り付
けられた車輪２２の下端４が、鉛直方向に対して、支柱
１、１の下端５、すなわち、支柱端具９ａの下端より上
方位置にある。このため、接地は支柱端具９ａの下面で
行われるため、使用時の安定性が高まる。なお、使用時
における車輪２２の下端の位置は、上記の他、鉛直方向
に対して、支柱１、１の下端５と同じ位置であってもよ
い。この場合、平坦な床面などに接地するのは、車輪２
２の下端４と支柱端具９ａの双方であるが、支柱端具９
ａの方が接地面積が大きく且つ摩擦係数も大きいため、
前述の場合と同様に安定である。また、固定車輪２は、
図４（Ｃ）に示すように、折り畳み後の直立姿勢におい
て、車軸２１に取り付けられた車輪２２の下端４が、支
柱１、１の下端５より下方位置になる。このため、折り
畳んだ状態の直立姿勢で平坦な床面に接地した場合、固
定車輪２のみが床面に接地するため、持ち運ぶ場合には
固定車輪２を転がして運ぶことができる。この場合、図
５及び図６に示すように、該折り畳み脚立１０を横滑り
状態で運搬できるため、操作性がよく、例えば、両側壁
３１、３１に囲まれた狭い通路３０でも移動が極めて容
易で楽となる。The fixed wheel 2 assembled in this way is
As shown in FIG. 4 (A), when used, the lower end 4 of the wheel 22 attached to the axle 21 is located above the lower ends 5 of the columns 1 and 1, that is, the lower ends of the column end fittings 9a in the vertical direction. It is in. For this reason, grounding is performed on the lower surface of the column end tool 9a, and the stability during use is improved. The position of the lower end of the wheel 22 during use may be the same as the lower end 5 of the columns 1 and 1 in the vertical direction, in addition to the above. In this case, it is the wheel 2 that touches the ground on a flat floor.
Both the lower end 4 of 2 and the post end tool 9a, but the post end tool 9
Since a has a larger ground contact area and a larger friction coefficient,
It is stable as in the previous case. In addition, the fixed wheel 2 is
As shown in FIG. 4C, the lower end 4 of the wheel 22 attached to the axle 21 is located below the lower ends 5 of the columns 1 and 1 in the upright posture after folding. For this reason, when the flat wheel is grounded in the upright posture in the folded state, only the fixed wheel 2 is grounded on the floor, and therefore the fixed wheel 2 can be rolled and carried when carrying. In this case, as shown in FIGS. 5 and 6, since the folding stepladder 10 can be carried in a sideways sliding state, the operability is good, and for example, even a narrow passage 30 surrounded by the side walls 31 is extremely easy to move. It will be easier.
【００１６】次に、第２の実施の形態における固定車輪
付き折り畳み脚立について、図７〜図９を参照して説明
する。図７は固定車輪部分の拡大図、図８は本例の固定
車輪付き折り畳み脚立の直立状態を示す模式図、図９は
運搬状態を説明する図である。第２の実施の形態例にお
いて、第１の実施の形態例と同一構成要素には同一符号
を付して、その説明を省略し、異なる点について、主に
説明する。すなわち、本例において、第１の実施の形態
例と異なる点は、固定車輪５０の車軸５１を昇降面３に
対して平行で且つ左右方向に配設したところにある。す
なわち、図７において、固定車輪５０は公知の構造のキ
ャスターであり、昇降面３と平行な支柱１の前側面１０
１に車軸５１が昇降面３に平行で、且つ左右方向に向け
て配設することにより、使用時には車軸５１に取り付け
られた車輪５２の下端４が、鉛直方向に対して、両支柱
１の下端５と同じ位置か上方位置にあり、折り畳み後の
直立姿勢では、車軸５１に取り付けられた車輪５２の下
端４が、前記両支柱１の下端５より下方位置になるよう
に設置される（図８参照）。また、本例においても、図
７では省略する車輪５２の上方部分を覆う保護カバー５
４を第１の実施の形態例と同様の目的で使用することが
できる。Next, the folding stepladder with fixed wheels according to the second embodiment will be described with reference to FIGS. FIG. 7 is an enlarged view of a fixed wheel portion, FIG. 8 is a schematic view showing an upright state of the folding stepladder with fixed wheels of this example, and FIG. 9 is a diagram illustrating a transportation state. In the second embodiment, the same components as those of the first embodiment are designated by the same reference numerals, the description thereof will be omitted, and different points will be mainly described. That is, in this example, the point different from the first embodiment is that the axle 51 of the fixed wheel 50 is arranged in parallel to the elevating surface 3 and in the left-right direction. That is, in FIG. 7, the fixed wheel 50 is a caster having a known structure, and the front side surface 10 of the column 1 parallel to the elevating surface 3 is used.
The lower end 4 of the wheel 52 attached to the axle 51 when used is such that the lower end 4 of the wheel 52 attached to the upper shaft 1 is parallel to the ascending / descending surface 3 and oriented in the left-right direction. 5, the lower end 4 of the wheel 52 attached to the axle 51 is located lower than the lower ends 5 of the both columns 1 in the upright posture after folding (FIG. 8). reference). Also in this example, the protective cover 5 that covers the upper portion of the wheel 52, which is omitted in FIG.
4 can be used for the same purpose as in the first embodiment.
【００１７】このように組みつけられた固定車輪５０
は、第１の実施の形態例と同様、図７に示すように、使
用時には車軸５１に取り付けられた車輪５２の下端４
が、鉛直方向に対して、支柱１、１の下端５より上方位
置にあるため、接地は支柱端具５の下面で行われ、使用
時の安定性が高まる。また、図８に示すように、折り畳
み後の直立姿勢において、車軸５１に取り付けられた車
輪５２の下端４が、支柱１、１の下端５より下方位置に
なるため、折り畳んだ状態の直立姿勢で平坦な床面に接
地した場合、固定車輪５２のみが床面に接地する。この
ため、持ち運ぶ場合には固定車輪５２を転がして運ぶこ
とができる。この場合、図９に示すように、支柱１、１
の端部を両手で把持し、押すことにより、あるいは引く
ことにより、該折り畳み脚立を転がり状態で運搬できる
ため、第１の実施の形態例ほどではないが、操作性がよ
く、移動が容易である。なお、収納時又は仮置きする場
合、図８の二点鎖線で示されるように、支柱端具が床面
に接地するまで傾斜させ、且つ上方端部が立て掛け壁面
に接地するようにすれば、安定である。The fixed wheel 50 assembled in this way
As in the case of the first embodiment, as shown in FIG. 7, the lower end 4 of the wheel 52 mounted on the axle 51 is in use.
However, since it is located above the lower ends 5 of the columns 1 and 1 in the vertical direction, grounding is performed on the lower surface of the column end tool 5, and stability during use is improved. Further, as shown in FIG. 8, since the lower end 4 of the wheel 52 attached to the axle 51 is located below the lower ends 5 of the columns 1 and 1 in the upright posture after folding, When grounding on a flat floor surface, only the fixed wheel 52 grounds on the floor surface. Therefore, the fixed wheels 52 can be rolled for carrying. In this case, as shown in FIG.
Since the folding stepladder can be transported in a rolling state by grasping the end portions of both ends with both hands and pushing or pulling, the operability is good and the movement is easy, although not as in the first embodiment. is there. In addition, in the case of storage or temporary storage, as shown by the chain double-dashed line in FIG. 8, if the support end is tilted until it touches the floor, and the upper end is leaned against the wall surface, It is stable.
【００１８】次に、本発明の第３の実施の形態における
固定車輪付き折り畳み脚立を図１０を参照して説明す
る。図１０において、第１の実施の形態例と同一構成要
素には同一符号を付して、その説明を省略し、異なる点
について、主に説明する。すなわち、本例の固定車輪付
き折り畳み脚立１０ｂにおいて、第１の実施の形態例と
異なる点は、折り畳み脚立が、昇降面３、３の２面を有
するものであり、前脚体となる図１０中、左側の支柱１
ａ、１ａの下方に固定車輪２を設けてなるものである。
固定車輪付き折り畳み脚立１０ｂは、天板６１ａと２本
の踏み桟６３、６３を有する前脚体となる支柱１ａ、１
ａと、略同形状の対称物である、天板６１ｂと２本の踏
み桟６３、６３を有する後脚体となる支柱１ｂ、１ｂと
を天板部分で回動自在に軸支して折り畳み可能としたも
のである。固定車輪付き折り畳み脚立１０ｂは折り畳ん
だ際、前脚体となる支柱１ａ、１ａと、後脚体となる支
柱１ｂ、１ｂの下端部が直立状態における長さ方向に揃
った状態となるため、いずれの側の支柱に固定車輪を取
り付けてもよいが、図１０では開き止め金具６２が固定
された前脚体の支柱１ａ、１ａに固定車輪２を設けたも
のである。本例においても、第１の実施の形態例と同様
の効果を奏する。Next, a folding stepladder with fixed wheels according to the third embodiment of the present invention will be described with reference to FIG. In FIG. 10, the same components as those of the first embodiment are designated by the same reference numerals, the description thereof will be omitted, and different points will be mainly described. That is, in the folding stepladder 10b with a fixed wheel of the present example, the difference from the first embodiment is that the folding stepladder has two lifting surfaces 3 and 3, which is a front leg. , Left column 1
The fixed wheels 2 are provided below a and 1a.
The foldable stepladder 10b with fixed wheels is a pillar 1a, 1 which is a front leg having a top plate 61a and two step bars 63, 63.
a, and a pedestal 1b, 1b, which is a symmetrical object of substantially the same shape and which is a rear leg having a top plate 61b and two step bars 63, 63, are rotatably supported by the top plate portion and folded. It was possible. When the folding stepladder 10b with fixed wheels is folded, the columns 1a and 1a that are the front legs and the lower ends of the columns 1b and 1b that are the rear legs are aligned in the length direction in the upright state. Although the fixed wheels may be attached to the side columns, in FIG. 10, the fixed wheels 2 are provided on the columns 1a, 1a of the front legs to which the opening stopper fittings 62 are fixed. Also in this example, the same effect as that of the first embodiment can be obtained.
【００１９】第３の実施の形態例のような、折り畳み脚
立が昇降面３、３の２面を有する折り畳み脚立の場合、
折り畳んだ際、前脚体となる支柱１ａ、１ａと、後脚体
となる支柱１ｂ、１ｂの下端部が直立状態における長さ
方向に揃った状態とならないものは、鉛直方向に長い一
対の支柱を選び、この下方に固定車輪を付設すればよ
い。In the case where the folding stepladder has the two elevating surfaces 3 and 3 as in the third embodiment,
When folded, the columns 1a and 1a that are the front legs and the lower ends of the columns 1b and 1b that are the rear legs are not aligned in the length direction in the upright state. It can be selected and fixed wheels can be attached below this.
【００２０】[0020]
【発明の効果】本発明によれば、片面昇降又は両面昇降
の折り畳み脚立において、これを使用する際、固定車輪
が床面に接地せず、ゴム材などの支柱端具で接地するた
め使用時の安定性が高い。また、折り畳んだ状態の直立
姿勢では、固定車輪のみが床面に接地するため、持ち運
ぶ場合には該固定車輪を転がして運ぶことができる。こ
のため、それ程の力を必要とせず女性でも安全且つ容易
に移動させることができる。特に、固定車輪の車軸を昇
降面に直交且つ前方へ突出するように設置した形態のも
のは、該折り畳み脚立を横滑り状態で運搬すれば、操作
性がよく、狭い通路でも移動が極めて楽となる。According to the present invention, when the folding stepladder is lifted on one side or on both sides, when it is used, the fixed wheel does not ground to the floor surface but is grounded by a pillar end tool such as a rubber material. High stability. Further, in the upright posture in the folded state, only the fixed wheel is in contact with the floor surface, so that the fixed wheel can be rolled and carried when carrying. For this reason, even a woman can safely and easily move without requiring such a force. In particular, in the case where the axle of the fixed wheel is installed so as to project orthogonally to the ascending / descending surface and to the front, if the folding stepladder is carried in the sideways state, the operability is good and the movement is very easy even in a narrow passage. .
【図１】第１の実施の形態例の固定車輪付き折り畳み脚
立の斜視図である。FIG. 1 is a perspective view of a folding stepladder with fixed wheels according to a first embodiment.
【図２】図１の固定車輪部分の拡大図である。FIG. 2 is an enlarged view of a fixed wheel portion of FIG.
【図３】第１の実施の形態例の固定車輪の分解組み立て
図である。FIG. 3 is an exploded view of the fixed wheel of the first embodiment.
【図４】第１の実施の形態例の使用状態（Ａ）、折り畳
み途中状態（Ｂ）、折り畳み後の直立姿勢（Ｃ）を順に
示す図である。FIG. 4 is a diagram sequentially showing a usage state (A), a folding state (B), and an upright posture (C) after folding in the first embodiment.
【図５】第１の実施の形態例の運搬状態を説明する側面
図(Ａ)及び正面図（Ｂ）である。FIG. 5 is a side view (A) and a front view (B) illustrating a carrying state of the first embodiment.
【図６】第１の実施の形態例の運搬状態を上から見た図
である。FIG. 6 is a view of the carrying state of the first embodiment as seen from above.
【図７】固定車輪部分の拡大図である。FIG. 7 is an enlarged view of a fixed wheel portion.
【図８】第２の実施の形態例の直立状態を示す模式図で
ある。FIG. 8 is a schematic view showing an upright state of the second embodiment example.
【図９】第２の実施の形態例の運搬状態を説明する図で
ある。FIG. 9 is a diagram illustrating a transportation state of the second embodiment example.
【図１０】第３の実施の形態例の斜視図である。FIG. 10 is a perspective view of a third embodiment example.
【図１１】従来の固定車輪付き折り畳み脚立の斜視図で
ある。FIG. 11 is a perspective view of a conventional folding stepladder with fixed wheels.
１、５１ 支柱
２、５２ 固定車輪
３ 昇降面
４ 車軸の下端
５ 支柱の下端
６ａ、６ｂ、６ｃ 踏み板
７ 後脚体
８ リンク部材
９ａ、９ｂ 支柱端具
１０、１０ａ、１０ｂ 固定車輪付き折り畳み脚
立
１１、５４ 保護カバー
２１ 車軸
２２、５２ 車輪
６１ａ、６１ｂ、６１ｃ 桟部材1, 51 Struts 2, 52 Fixed wheels 3 Elevating surface 4 Lower end of axle 5 Lower ends 6a, 6b, 6c of strut 7 Foot plate 7 Rear leg 8 Link members 9a, 9b Strut end tool 10, 10a, 10b Folding stepladder with fixed wheel 11 , 54 Protective cover 21 Axle 22, 52 Wheels 61a, 61b, 61c Crosspiece member
Claims (4)
の両支柱の下方に固定車輪を設けてなり、前記固定車輪
は、該固定車輪の車軸が前記昇降面に対して直交又は平
行のいずれかに配設されて、使用時には前記車軸に取り
付けられた車輪の下端が、鉛直方向に対して、前記両支
柱の下端と同じ位置か上方位置にあり、折り畳み後の直
立姿勢では、前記車軸に取り付けられた車輪の下端が、
前記両支柱の下端より下方位置になるように設置される
ことを特徴とする固定車輪付き折り畳み脚立。1. A fixed wheel is provided below both columns on the side of the ascending / descending surface of a folding stepladder having one elevating surface, and the fixed wheel has an axle of the fixed wheel orthogonal or parallel to the ascending / descending surface. When used, the lower end of the wheel attached to the axle when used is at the same position or the upper position as the lower ends of the both columns with respect to the vertical direction, and in the upright posture after folding, the axle is The lower end of the wheel attached to
A foldable stepladder with fixed wheels, which is installed so as to be located below the lower ends of the both columns.
両支柱の下方に固定車輪を設けてなり、前記固定車輪
は、該固定車輪の車軸が前記後脚体の両支柱間で形成さ
れる面に対して直交又は平行のいずれかに配設されて、
使用時には前記車軸に取り付けられた車輪の下端が、鉛
直方向に対して、前記両支柱の下端と同じ位置か上方位
置にあり、折り畳み後の直立姿勢では、前記車軸に取り
付けられた車輪の下端が、前記両支柱の下端より下方位
置になるように設置されることを特徴とする固定車輪付
き折り畳み脚立。2. A fixed wheel is provided below both columns of a rear leg of a folding stepladder having a single lifting surface, and the fixed wheel has an axle of the fixed wheel formed between both columns of the rear leg. Is arranged either orthogonal or parallel to the plane
At the time of use, the lower end of the wheel attached to the axle is at the same position or the upper position as the lower end of the both columns with respect to the vertical direction, and in the upright posture after folding, the lower end of the wheel attached to the axle is A foldable stepladder with a fixed wheel, wherein the foldable stepladder is installed so as to be located below the lower ends of the both columns.
の昇降面側の両支柱の下端に固定車輪を設けてなり、前
記固定車輪は、該固定車輪の車軸が当該取り付け側の昇
降面に対して直交又は平行のいずれかに配設されて、使
用時には前記車軸に取り付けられた車輪の下端が、前記
両支柱の下端と同じ位置か上方位置にあり、折り畳み後
の直立姿勢では、前記車軸に取り付けられた車輪の下端
が、鉛直方向に対して、前記両支柱の下端より下方位置
になるように設置されることを特徴とする固定車輪付き
折り畳み脚立。3. A fixed wheel is provided at the lower end of both columns on either side of the ascending / descending surface of a folding stepladder having a double-sided ascending / descending surface. On the other hand, the lower ends of the wheels, which are arranged orthogonally or parallel to each other and are attached to the axle during use, are located at the same position as or above the lower ends of the columns, and in the upright posture after folding, the axle is A foldable stepladder with fixed wheels, characterized in that the lower ends of the wheels attached to the above are installed so as to be located below the lower ends of the two columns in the vertical direction.
を覆う保護カバーを設けたことを特徴とする請求項１〜
３のいずれか１項に記載の固定車輪付き折り畳み脚立。4. The protective cover is provided on the fixed wheel to cover an upper surface portion of the fixed wheel.
The folding stepladder with fixed wheels according to any one of 3 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001246665A JP2003056266A (en) | 2001-08-15 | 2001-08-15 | Foldable stepladder with fixed wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001246665A JP2003056266A (en) | 2001-08-15 | 2001-08-15 | Foldable stepladder with fixed wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003056266A true JP2003056266A (en) | 2003-02-26 |
Family
ID=19076166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001246665A Pending JP2003056266A (en) | 2001-08-15 | 2001-08-15 | Foldable stepladder with fixed wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003056266A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401450A (en) * | 2016-12-12 | 2017-02-15 | 盐城工学院 | Novel ladder and emergency escape ladder |
| JP2017048540A (en) * | 2015-08-31 | 2017-03-09 | ジー・オー・ピー株式会社 | Portable working platform |
| CN108703510A (en) * | 2018-05-16 | 2018-10-26 | 张兴昌 | A kind of multifunctional book ladder |
| CN112160705A (en) * | 2020-09-19 | 2021-01-01 | 芜湖航翼集成设备有限公司 | Six-joint working ladder with pedals |
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| JPH023000A (en) * | 1988-06-14 | 1990-01-08 | Fujitsu Ltd | X-ray exposure device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017048540A (en) * | 2015-08-31 | 2017-03-09 | ジー・オー・ピー株式会社 | Portable working platform |
| JP2021102919A (en) * | 2015-08-31 | 2021-07-15 | ジー・オー・ピー株式会社 | Portable working platform |
| JP7137877B2 (en) | 2015-08-31 | 2022-09-15 | ジー・オー・ピー株式会社 | portable workbench |
| CN106401450A (en) * | 2016-12-12 | 2017-02-15 | 盐城工学院 | Novel ladder and emergency escape ladder |
| CN108703510A (en) * | 2018-05-16 | 2018-10-26 | 张兴昌 | A kind of multifunctional book ladder |
| CN112160705A (en) * | 2020-09-19 | 2021-01-01 | 芜湖航翼集成设备有限公司 | Six-joint working ladder with pedals |
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