JP2008280021A - Structure for connecting power assisted drive wheel with truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To use a power assisted drive wheel and a hand-pushed truck by connecting or disconnecting them as necessary to lighten carrying work and reduce a system cost. <P>SOLUTION: In structure of a truck connecting arm part 1 of the power assisted drive wheel generating a driving force corresponding to human power, an upper surface part of a truck connection plate corresponding to a truck side upper part connecting pin position is cut out to constitute tapered structure, and a connecting rod 3 moving up and down by a lever operation in the inside of a lower surface of the truck connection plate is provided. On the other hand, a bolt-shaped connecting pin is disposed to an upper part of a truck-side connecting plate corresponding to a connecting/fitting position at the truck connecting part of the power assisted drive wheel mechanism. In the lower part, sliding guides sliding a connecting plate upward and downward and a support rail supporting them are fixed and installed to the truck. The connecting plate is provided with an L-shaped hook for catching the connecting rod disposed at a drive-wheel-side lower part connecting position. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は人力に対応した駆動力を発生することで人力をアシストし、人の負担力の軽減を図るようにした電動アシスト式手押し台車に関するもので、電動アシスト駆動輪と台車の連結構造に関するものである。  The present invention relates to an electrically assisted hand cart that assists human power by generating a driving force corresponding to human power and reduces the burden on humans, and relates to a connection structure of an electrically assisted drive wheel and a cart. It is.

従来の電動アシスト式電動駆動台車では操舵ハンドルを人が押したり、引いたりする時の人力に比例した駆動力で人力をアシストする電動アシスト式台車に関するものである。  The conventional electric assist type electric driving cart relates to an electric assist type cart that assists human power with a driving force proportional to human power when a person pushes or pulls a steering handle.

例えば、特願２００６−３２２５８２に記載されているように操作ハンドルに加えられた人力の大きさと方向に対応して駆動トルクを発生する駆動輪機構と台車を結合して、台車を押す人力をアシストするものがある  For example, as described in Japanese Patent Application No. 2006-322582, a driving wheel mechanism that generates a driving torque corresponding to the magnitude and direction of human power applied to an operation handle is combined with a cart to assist human power pushing the cart. There is something to do

従来のアシスト駆動機構を持った駆動輪では駆動機構と台車を連結する場合ボルトなどで締め付ける方法をとっていた。従って、駆動機構と台車を連結することが簡単に出来ず、女子化や高齢者の従事を難しくし、また稼働率を悪くしていた。  In a conventional drive wheel having an assist drive mechanism, when the drive mechanism and the carriage are connected, a method of tightening with a bolt or the like has been adopted. Accordingly, it is not easy to connect the drive mechanism and the carriage, making it difficult for girls and elderly people to work, and the operation rate is poor.

本発明は、このような従来の構成が有していた問題に対し、操作性を損なうことなく、かつ簡易な構成で解決しようとするものであり、複数台の既存台車に簡易な連結機構を付加することによって１台のアシスト式駆動輪で多数の台車を人力アシスト台車として使用出来るようにし、重量物運搬を体力的弱者である高齢者や女子作業者で可能とし、同時に低コストで既存の台車を人力アシスト仕様台車として適用せんとするものである。  The present invention is intended to solve such problems of the conventional configuration with a simple configuration without impairing operability, and a simple coupling mechanism is provided for a plurality of existing carts. In addition, a large number of carts can be used as human-powered carts with a single assist-type driving wheel, and heavy objects can be transported by elderly and female workers who are physically weak, while at the same The trolley is intended to be applied as a human-powered trolley.

本発明は上記目的を達成するために人力に対応した駆動力を発生する電動アシスト式駆動輪の台車連結アーム部の構成を台車結合板の上面部分をテーパ構造とし、かつ台車側上部連結ピン位置に対応した部分をピンの胴体軸径より大きくピン頭部直径より小さい幅で連結ピン下端以下の位置までＵ字型に切り欠きを設け台車と結合し、また、台車結合板の下面内側でレバー操作により連結アームの側板の固定軸を支点としてリンク機構にて円弧状を上下に移動する連結棒を設ける一方、電動アシスト式駆動輪機構の台車連結部に設けられた連結勘合位置に対応した台車側の連結板の上部にはボルト形状の連結ピンを設け、下部には駆動輪側下部連結位置に設けられた連結棒をキャッチするＬ型フックを設けた連結板を上下に摺動する摺動ガイドおよびそれを支持する支持レールを台車に固定設置する電動アシスト式駆動輪と台車の連結構造  In order to achieve the above object, the present invention has a structure of a truck connecting arm portion of an electrically assisted driving wheel that generates a driving force corresponding to human power, wherein the upper surface portion of the truck connecting plate has a tapered structure, and the position of the truck side upper connecting pin The portion corresponding to the width of the pin is larger than the fuselage shaft diameter and smaller than the pin head diameter, and a U-shaped notch is provided to the position below the lower end of the connecting pin to connect with the carriage. A cart corresponding to the coupling fitting position provided at the cart coupling portion of the electrically assisted drive wheel mechanism while providing a coupling rod that moves up and down the arc shape by a link mechanism with the fixed axis of the side plate of the coupling arm as a fulcrum by operation A sliding pin that slides up and down on a connecting plate provided with an L-shaped hook for catching a connecting rod provided at a lower connecting position on the drive wheel side is provided with a bolt-shaped connecting pin on the upper side of the connecting plate on the side Guy And connecting structure of an electric assisted drive wheels and truck the support rails fixedly installed on carriage for supporting the

第２の課題解決手段は前述した課題解決手段の第１の摺動ガイドより高い位置に別の第２の摺動ガイドを設け、第１の摺動ガイドと第２の摺動ガイド間をバネ結合し、第２の摺動ガイドには位置固定用のボルトを設けた電動アシスト式駆動輪と台車の連結構造  The second problem solving means is provided with another second sliding guide at a position higher than the first sliding guide of the problem solving means described above, and a spring is provided between the first sliding guide and the second sliding guide. Coupling structure of electrically assisted driving wheels and carts that are coupled and provided with bolts for position fixing on the second sliding guide

第３の課題解決手段は電動アシスト式駆動輪側の台車連結アーム部をハンドル軸機構と固定可能なストッパ−ピンを設けた電動アシスト式駆動輪と台車の連結構造  A third problem solving means is a structure for connecting a power-assisted driving wheel and a carriage provided with a stopper pin capable of fixing a carriage connecting arm portion on the side of the motor-assisted driving wheel to a handle shaft mechanism.

上記第１の解決手段による作用は次の通りである。すなわち１台の電動アシスト式駆動輪に対し複数台の台車の中から任意の台車を選択使用する場合、駆動輪側と台車側が簡単に結合出来なければならないが、連結部を新たな工具を用意することなく着脱可能な構成とすることで可能となり、台車搬送システムを安価に構築できる。  The operation of the first solving means is as follows. In other words, when an arbitrary cart is selected from a plurality of carts for a single electrically assisted drive wheel, the drive wheel side and the cart side must be easily coupled, but a new tool is provided for the connecting part. It becomes possible by making it the structure which can be attached or detached, without carrying out, and a trolley | bogie conveyance system can be constructed | assembled cheaply.

第２の解決手段による作用は駆動輪にバネ圧による一定の圧力を与えることにより駆動輪側と台車側の路面段差による駆動輪のスリップの防止を図るものである。  The action of the second solving means is to prevent slippage of the drive wheel due to a road surface step between the drive wheel side and the carriage side by applying a constant pressure by the spring pressure to the drive wheel.

第３の解決手段による作用は駆動輪側の連結部が駆動輪操舵ハンドルの動きに対して自由であれば台車側との結合時に不定となることを防止し、台車との連結作業を容易にすることにある。  The action by the third solution means that if the connecting part on the driving wheel side is free to the movement of the driving wheel steering handle, it can be prevented from becoming unstable at the time of coupling with the carriage side, and the connecting work with the carriage can be facilitated. There is to do.

上述したように本発明の連結構造を電動アシスト駆動輪と台車の双方に用いることによって、女性や高齢者などの身体的弱者での重量物搬送が習熟することなく初心者でも簡易に行え、就業機会を多くすると同時に、既存台車が適用でき、レイアウト変更にもコストの掛からない安価な搬送システムが提供できる。As described above, by using the connecting structure of the present invention for both the electric assist drive wheel and the carriage, even a beginner can easily carry heavy objects in a physically weak person such as a woman or an elderly person. At the same time, an existing carriage can be applied, and an inexpensive transport system can be provided that does not cost any cost for layout changes.

以下、本発明の実施の形態を図１から５に基づいて説明する。  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

図１は本発明の電動アシスト式駆動輪の側面図で台車連結アーム部（１）は操作ハンドル（２１）と軸受け（２２）（２３）にて分離されて動く、すなわち操作ハンドル（２１）と駆動輪（２４）は連動するが台車連結アーム部（１）は連動しない。このことはハンドル操作が小さな力で行えることを意味する。  FIG. 1 is a side view of an electrically assisted drive wheel according to the present invention. A carriage connecting arm portion (1) moves separately by an operation handle (21) and bearings (22) and (23), that is, an operation handle (21). The drive wheel (24) is interlocked, but the carriage connecting arm portion (1) is not interlocked. This means that the steering wheel can be operated with a small force.

台車連結アーム部（１）は台車結合板（４）を台車との連結側に側面板（９）を介して設けている。台車結合板（４）の上部面の一部は図２の右斜線部に示されるように、台車側連結ピン（１１）の胴体軸径より大きくピン頭部直径より小さい幅で連結ピン下端以下の位置までＵ字型に切り欠きを設け、さらに台車側の連結板（１０）と勘合するとき、Ｕ字型に切り欠き部分への挿入が容易になるようテーパ面構造としている。  The carriage connecting arm portion (1) is provided with a carriage coupling plate (4) on the side connected to the carriage via a side plate (9). A part of the upper surface of the carriage coupling plate (4) has a width larger than the body shaft diameter of the carriage side coupling pin (11) and smaller than the pin head diameter as shown by the right oblique line portion in FIG. The U-shaped notch is provided up to the position, and when it is mated with the connecting plate (10) on the carriage side, the U-shaped has a tapered surface structure so that it can be easily inserted into the notched portion.

ノブ（５）を操作することでノブ（５）、リンク棒（８）、アーム（７）、連結棒（３）で構成される下部連結機構は、台車結合板（４）の下部位置で、図３の台車側の連結板（１０）に設けられたＬ型フック（１２）に連結棒（３）がキャッチされるが、ノブ（５）を上下に操作することで支点Ａ（６）を中心とした円弧上の上下方向に連結棒（３）が動きフック（１２）との着脱が出来る。  By operating the knob (5), the lower connecting mechanism composed of the knob (5), the link rod (8), the arm (7), and the connecting rod (3) is located at the lower position of the carriage coupling plate (4). The connecting rod (3) is caught by the L-shaped hook (12) provided on the connecting plate (10) on the cart side in FIG. 3, but the fulcrum A (6) is moved by operating the knob (5) up and down. The connecting rod (3) moves in the vertical direction on the center arc and can be attached to and detached from the hook (12).

連結棒（３）がフック（１２）にキャッチされている状態ではノブ（５）は図６の連結アーム部の上面図のノブ（３）の保持位置穴（２８）の（ア）にある。逆に、フック（１２）に収納されていない状態の時は（イ）の位置にリンク棒（８）に設けられた凸部（２７）が架かり定置される。尚、凸部のふくらみは図６のΦで示される外径より小さく、イで示されるＤより大きい点線で示される大きさである。  In a state where the connecting rod (3) is caught by the hook (12), the knob (5) is located in (a) of the holding position hole (28) of the knob (3) in the top view of the connecting arm portion of FIG. On the contrary, when it is not housed in the hook (12), the convex portion (27) provided on the link rod (8) is suspended and placed at the position of (a). The bulge of the convex portion is smaller than the outer diameter indicated by Φ in FIG. 6 and has a size indicated by a dotted line larger than D indicated by a.

図１のストッパ−ピン（２）は台車との連結時に台車連結アーム部（１）が操作ハンドル（２１）に連動せず、フリー状態であると台車連結板（１０）との位置合わせが難しくなるこのため操作ハンドル（２１）と台車連結アーム部（１）の動きを連動させるものである。ピン頭部は凸部と凹部に２分され、凸凹部が嵌めあった時にストッパ−ピン（２）のピンが図６の固定穴（２９）と勘合し、ハンドルの動きに一致し台車との連結を容易にする。  The stopper pin (2) of FIG. 1 is difficult to align with the carriage connecting plate (10) when the carriage connecting arm (1) is not interlocked with the operation handle (21) when connected to the carriage and is free. Therefore, the movements of the operation handle (21) and the carriage connecting arm portion (1) are interlocked. The head of the pin is divided into a convex part and a concave part, and when the convex concave part is fitted, the pin of the stopper pin (2) is engaged with the fixing hole (29) in FIG. Facilitates connection.

電動アシスト式駆動輪と台車を連結して使用する場合はこのストッパ−ピン（２）の凸部を引き上げて回転させて、凹部との勘合をはずし、台車の走行軌跡を操作ハンドル（１）の操作することで容易に決定できる。  When the electric assist type driving wheel and the carriage are connected and used, the convex portion of the stopper pin (2) is pulled up and rotated to remove the engagement with the concave portion, and the traveling locus of the carriage is adjusted to the operating handle (1). It can be easily determined by operation.

一方、台車側に取り付けられる連結機構部品としては台車に機構部品を取り付けるための取付け板（１８）および、この取付け板と台車ハンドル（１７）間に図３および図４に示されるように固定ボルト（１９）および固定金具（２０）に保持される支持レール（１６）を設け、この支持レール（１６）上を摺動移動できるよう摺動ガイド１に保持される台車連結板（１０）およびこの板上に連結ピン（１１）Ｌ型フックを設けている。  On the other hand, as a coupling mechanism component attached to the carriage side, a mounting plate (18) for attaching the mechanism component to the carriage, and a fixing bolt as shown in FIGS. 3 and 4 between the attachment plate and the carriage handle (17). (19) and a support rail (16) held by the fixing bracket (20) are provided, and a carriage connecting plate (10) held by the sliding guide 1 so as to be slidable on the support rail (16), and this A connecting pin (11) L-shaped hook is provided on the plate.

支持レール（１６）上には摺動ガイド２を設け、摺動ガイド１との間にバネ（１４Ａ）（１４Ｂ）を設けている。電動アシスト駆動輪側の台車結合板（４）との勘合位置決めは摺動ガイド１に設けられた固定ネジ（２１）にて勘合場所が平地にて電動アシスト駆動輪と台車を連結した時バネ（１４）が１／２の伸び状態となるよう固定する。これは駆動輪側と台車側の路面段差が合った時バネ（１４）の伸縮で吸収し、駆動輪に必要な輪圧を確保するものである。  A sliding guide 2 is provided on the support rail (16), and springs (14A) (14B) are provided between the sliding guide 1 and the supporting guide (16). The mating positioning with the cart coupling plate (4) on the electric assist drive wheel side is performed by a fixing screw (21) provided on the sliding guide 1 when the mating place is flat and the motor assist drive wheel and the cart are connected with a spring ( 14) is fixed so as to be in a half stretched state. This is absorbed by the expansion and contraction of the spring (14) when the road surface steps on the drive wheel side and the carriage side are matched, and the wheel pressure required for the drive wheel is secured.

電動アシスト台車と台車を連結するにはストッパ−ピン（２）で操作ハンドル（２１）台車連結アーム部（１）を連結し、ノブ（５）にて連結棒（３）を上げた状態にした後に電動アシスト駆動輪全体を連結する台車側に傾けて、台車結合板（４）のＵ型切り欠き部分を台車側の連結ピン（１１）に挿入し、電動アシスト台車を垂直方向に戻すようにし、台車結合板（４）と連結板（１０）が隙間無く密着するようにした後にノブ（５）を操作して連結棒（３）が台車側のＬ型フック（１２）に収納し連結を終了する。その後ストッパ−ピン（２）を持ち上げ台車連結アーム部（１）と操作ハンドル（２１）の連結を解除し台車を電動アシスト台車として走行運転する。  To connect the electric assist cart and the cart, the operation handle (21) and the cart connecting arm (1) are connected by the stopper pin (2), and the connecting rod (3) is raised by the knob (5). Later, it is tilted to the cart side that connects the entire electric assist drive wheel, and the U-shaped notch portion of the cart coupling plate (4) is inserted into the coupling pin (11) on the cart side so that the electric assist cart is returned to the vertical direction. Then, after the carriage coupling plate (4) and the coupling plate (10) are brought into close contact with each other without any gap, the knob (5) is operated, and the coupling rod (3) is stored in the L-shaped hook (12) on the carriage side. finish. Thereafter, the stopper pin (2) is lifted to release the connection between the carriage connecting arm portion (1) and the operation handle (21), and the vehicle is driven to run with the carriage as an electric assist cart.

台車を分離するには前述したことの逆の操作を行う。すなわち、ノブ（５）により連結板（１０）のＬ型フック部（１２）に収納されている連結棒（３）を持ち上げて下部位置での連結を解除した後に、電動アシスト駆動輪を台車側に傾けて上部位置のＵ型切り欠き部分に挿入されている連結ピン（１１）を外すことによって台車と電動アシスト駆動輪の分離は完了する。  To separate the carriage, the reverse of the above is performed. That is, after lifting the connecting rod (3) housed in the L-shaped hook portion (12) of the connecting plate (10) by the knob (5) to release the connection at the lower position, the electric assist drive wheel is moved to the cart side. When the connecting pin (11) inserted in the U-shaped notch portion at the upper position is removed by tilting to the upper side, the separation of the carriage and the electrically assisted drive wheels is completed.

以上のような手順で１台の電動アシスト駆動輪で多数台の台車を電動アシスト式台車として運用でき、重量物搬送に携わることが困難であった女性や高齢者などの身体的弱者の就業を促進すると共にコスト的に安価な搬送システムを提供出来るものである。  With the above procedure, a large number of carts can be operated as a motor-assisted cart with a single motor-assisted drive wheel, and it is difficult to work for physically vulnerable people such as women and elderly people who were difficult to carry heavy objects. It is possible to provide a transport system that is promoted and inexpensive in terms of cost.

本発明の電動アシスト式駆動輪の側面図Side view of the electrically assisted drive wheel of the present invention 本発明の電動アシスト式駆動輪の正面図Front view of the electrically assisted drive wheel of the present invention 本発明の台車の側面図Side view of the cart of the present invention 本発明の台車の正面図Front view of the cart of the present invention 本発明の電動アシスト式駆動輪と台車の連結状態図Connection diagram of electrically assisted drive wheel and carriage of the present invention 本発明の電動アシスト式駆動輪側アーム連結部の上面図The top view of the electrically-assisted drive wheel side arm connection part of this invention 本発明の電動アシスト式駆動輪と台車連結時の勘合状態図〔図１〕本発明の電動アシスト式駆動輪の側面図FIG. 1 is a side view of an electrically assisted driving wheel according to the present invention.

符号の説明Explanation of symbols

１ 台車連結アーム部
２ ストッパ−ピン
３ 連結棒
４ 台車結合版
５ ノブ
６ 支点Ａ
７ アーム
８ リンク棒
９ 側面板
１０ 連結板
１１ 連結ピン
１２ Ｌ型フック
１３ 摺動ガイド１
１４ バネ
１５ 摺動ガイド２
１６ 支持レール
１７ 手押し台車ハンドル
１８ 取付け板
１９ 固定ボルト
２０ 固定金具
２１ 操作ハンドル
２２ 軸受け
２３ 軸受け
２４ 駆動輪
２５ 電池ボックス
２６ 制御箱
２７ 凸部
２８ 保持位置穴
２９ 切り欠き穴1 Carriage connecting arm part 2 Stopper pin 3 Connecting rod 4 Carriage connecting plate 5 Knob 6 Support point A
7 Arm 8 Link rod 9 Side plate 10 Connection plate 11 Connection pin 12 L-shaped hook 13 Sliding guide 1
14 Spring 15 Sliding guide 2
16 Support rail 17 Hand truck handle 18 Mounting plate 19 Fixing bolt 20 Fixing bracket 21 Operation handle 22 Bearing 23 Bearing 24 Drive wheel 25 Battery box 26 Control box 27 Protruding portion 28 Holding position hole 29 Notch hole

Claims (3)

人力に対応した駆動力を発生する電動アシスト式駆動輪の台車連結アーム部の構成を台車結合板の上面部分をテーパ構造とし、かつ台車側上部連結ピン位置に対応した部分をピンの胴体軸径より大きくピン頭部直径より小さい幅で連結ピン下端以下の位置までＵ字型に切り欠きを設け台車と結合し、また、台車結合板の下面内側でレバー操作により連結アームの側板の固定軸を支点としてリンク機構にて円弧状を上下に移動する連結棒を設ける一方、電動アシスト式駆動輪機構の台車連結部に設けられた連結勘合位置に対応した台車側の連結板の上部にはボルト形状の連結ピンを設け、下部には駆動輪側下部連結位置に設けられた連結棒をキャッチするＬ型フックを設けた連結板を上下に摺動する摺動ガイドおよびそれを支持する支持レールを台車に固定設置する電動アシスト式駆動輪と台車の連結構造The structure of the carriage connecting arm part of the electrically assisted driving wheel that generates driving force corresponding to human power is a taper structure on the upper part of the carriage connecting plate, and the part corresponding to the position of the upper connecting pin on the carriage side is the fuselage shaft diameter of the pin A U-shaped notch that is larger and smaller than the pin head diameter and below the lower end of the connecting pin is connected to the carriage, and the fixed shaft of the side plate of the connecting arm is operated by lever operation inside the lower face of the carriage connecting plate. A connecting rod that moves up and down the arc shape by a link mechanism as a fulcrum is provided, while a bolt shape is formed on the upper side of the connecting plate on the cart side corresponding to the coupling fitting position provided in the cart coupling portion of the electrically assisted drive wheel mechanism A sliding guide that slides up and down a connecting plate provided with an L-shaped hook that catches a connecting rod provided at a lower connecting position on the driving wheel side and a support rail that supports the sliding guide Connecting structure of an electric assisted driving wheel and carriage for fixedly installed on the carriage 請求項１の構成のものに、第１の摺動ガイドより高い位置に別の第２の摺動ガイドを設け、第１の摺動ガイドと第２の摺動ガイド間をバネ結合し、第２の摺動ガイドには位置固定用のボルトを設けた電動アシスト式駆動輪と台車の連結構造In the structure of claim 1, another second sliding guide is provided at a position higher than the first sliding guide, the first sliding guide and the second sliding guide are spring-coupled, The sliding guide of 2 is provided with a bolt for fixing the position. 請求項１ならびに請求項２の構成のものに電動アシスト式駆動輪側の台車連結アーム部をハンドル軸機構と固定可能なストッパ−ピンを設けた電動アシスト式駆動輪と台車の連結構造  A structure for connecting an electric assist type driving wheel and a carriage provided with a stopper pin capable of fixing the carriage connecting arm portion on the electric assist type driving wheel side to the handle shaft mechanism in the structure of the first and second aspects.

Images