JPH0999839A - Moving carriage - Google Patents

Moving carriage

Info

Publication number
JPH0999839A
JPH0999839A JP25993595A JP25993595A JPH0999839A JP H0999839 A JPH0999839 A JP H0999839A JP 25993595 A JP25993595 A JP 25993595A JP 25993595 A JP25993595 A JP 25993595A JP H0999839 A JPH0999839 A JP H0999839A
Authority
JP
Japan
Prior art keywords
wheels
wheel
auxiliary wheel
carriage
auxiliary
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.)
Granted
Application number
JP25993595A
Other languages
Japanese (ja)
Other versions
JP2891145B2 (en
Inventor
Yasuhiro Ako
裕弘 阿古
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokuyo Co Ltd
Original Assignee
Kokuyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kokuyo Co Ltd filed Critical Kokuyo Co Ltd
Priority to JP7259935A priority Critical patent/JP2891145B2/en
Publication of JPH0999839A publication Critical patent/JPH0999839A/en
Application granted granted Critical
Publication of JP2891145B2 publication Critical patent/JP2891145B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To surely resolve a dilemma that a small turn property is lowered when a straight advance property is emphasized and the straight advance property is lowered when the small turn property is emphasized even at the place where the profile irregularity of the floor surface is inferior. SOLUTION: This moving carriage is constituted of a carriage main body 1 provided with a manual operation lever, front wheels 2 and rear wheels oscillatably arranged on the bottom of the carriage main body 1, an auxiliary wheel 4 unoscillatably arranged on the bottom of the carriage main body 1 so that the rolling direction coincides with the longitudinal direction X of a carriage and supported on the carriage main body 1 to be vertically moved against the floor surface F, and a mechanical transmission mechanism 5 mainly constituted of a compression spring 51, a wire 52, and a tube 55 and continuously converting the operating force applied to the operation lever into the vertical action of the auxiliary wheel 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、配送センター等に
おいて好適に利用される移動台車に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile trolley preferably used in a distribution center or the like.

【0002】[0002]

【従来の技術】この種の移動台車は、配送センターの倉
庫等において、棚上げする商品や棚下ろしした商品を載
置して搬送する場合等に利用されるものである。
2. Description of the Related Art This type of mobile trolley is used, for example, in a warehouse of a distribution center for placing and transporting products to be shelved or products shelved.

【0003】従来の移動台車は、一般的には三輪もしく
は四輪構造のもので、前輪若しくは後輪の一方が首振り
可能な旋回車輪であり他方が首振り不能な固定車輪であ
るように構成されているのが一般的である。
[0003] A conventional mobile trolley is generally of a three-wheel or four-wheel structure, and one of the front wheel and the rear wheel is a swing wheel capable of swinging and the other is a fixed wheel which cannot swing. It is generally done.

【0004】[0004]

【発明が解決しようとする課題】ところが、このような
従来の移動台車は、作業を完了して台車を目的地まで移
動させる場合の操縦性は良いが、商品をピッキングしな
がら移動する場合等の作業性はあまり良くない。その理
由は、ピッキングしながら移動する場合等は、短距離の
移動が多い上に、前進のみならず斜め移動、横移動、後
退、旋回の動きが頻繁に行われる。このため、前輪又は
後輪が固定車輪である台車は、小回りが利かず、その都
度台車を扱うものが台車に対して離れたり定位置に戻っ
たりして操縦しなければならないからである。
However, such a conventional moving trolley has good maneuverability when the work is completed and the trolley is moved to the destination. Workability is not so good. The reason is that when moving while picking, there are many short-distance movements, and in addition to forward movement, diagonal movements, lateral movements, backward movements, and turning movements are frequently performed. For this reason, the bogie having the front wheels or the rear wheels as fixed wheels does not have a small turning ability, and the person handling the bogie has to operate by moving away from the bogie or returning to a fixed position each time.

【0005】このような不具合を解決するために、前輪
及び後輪を首振り自在な旋回車輪としておき、台車の中
央部に選択的に床面に接地させることの可能な固定車輪
を設けたものも考えられている。このようにすれば、小
回りが必要なときには固定車輪を床面から浮上させれば
よく、直進走行が必要なときには固定車輪を床面に接地
させればよいので、両機能を同時に備え併せたものにす
ることができる。しかし、このものは、固定車輪の位置
を、床面から完全に浮上する位置と、他の車輪と同じ位
置にまで降下して床面に接地する位置とに背反的に移動
させてロックするようにしている。このため、床面に凹
凸があり、その凹凸上に固定車輪が位置した場合には、
固定車輪の接地状態が他の旋回車輪に比べて浅すぎたり
逆に深すぎたりする状態になる。そして、このような場
合に、固定車輪よりも旋回車輪の方が優先して機能して
蛇行やふらつきを生じたり、逆に旋回車輪よりも固定車
輪の方が優先して機能して他の旋回車輪の一部が持ち上
がり台車全体が傾く等の不具合を惹起することになる。
In order to solve such a problem, the front wheels and the rear wheels are set as swing wheels capable of swinging freely, and fixed wheels are provided at the center of the bogie to selectively ground the floor. Is also considered. In this way, when a small turn is required, the fixed wheels can be floated from the floor surface, and when straight running is required, the fixed wheels can be grounded on the floor surface. Can be However, this one locks the fixed wheel by moving the position of the fixed wheel to the position where it completely floats above the floor and the position where it descends to the same position as the other wheels and touches the floor. I have to. Therefore, if there is unevenness on the floor surface and the fixed wheel is located on the unevenness,
The ground contact state of the fixed wheel becomes too shallow or, on the contrary, too deep as compared with the other turning wheels. In such a case, the turning wheel has a higher priority than the fixed wheel to cause meandering or wobbling, or conversely, the fixed wheel has a higher priority to function than the turning wheel for other turning. This causes a problem such as a part of the wheels being lifted and the entire trolley being tilted.

【0006】本発明は、このような不具合を好適に解決
することを目的としている。
An object of the present invention is to suitably solve such a problem.

【0007】[0007]

【課題を解決するための手段】本発明は、かかる目的を
達成するために、次のような構成を採用したものであ
る。
In order to achieve the above object, the present invention employs the following configuration.

【0008】すなわち、本発明に係る移動台車は、手動
用の操作レバーを備えた台車本体と、この台車本体の底
部に首振り自在に配設された前輪及び後輪と、前記台車
本体の底部に一定の方向に向けて首振り不能に配設され
且つ床面に対して昇降動作を行い得るように前記台車本
体に支持された補助車輪と、前記操作レバーに加えられ
る操作力を前記補助車輪の昇降動作に連続的に変換する
機械式伝達機構とを具備してなることを特徴とする。
That is, the movable carriage according to the present invention includes a carriage main body having a manual operation lever, front and rear wheels swingably mounted on the bottom of the carriage main body, and the bottom of the carriage main body. An auxiliary wheel supported by the trolley body so as to be able to move up and down with respect to the floor surface so as not to swing in a certain direction, and an operation force applied to the operation lever. And a mechanical transmission mechanism for continuously converting the lifting motion of the above.

【0009】このような構成のものであれば、操作レバ
ーを操作することによって、その操作力に応じて補助車
輪を床面に選択的に押し付けて接地させることができ
る。しかも、操作レバーを把持している状態では、操作
レバーと補助車輪との間が機械式伝達機構によって連結
されているため、操作レバーには補助車輪が床面に接地
することによる反力が作用する。そして、補助車輪が床
面上の凹凸がある箇所を通過するとき、その反力が補助
車輪の接地状態によって減増し、それに応じて操作レバ
ーを把持した手が、再び操作力と釣り合う反力が補助車
輪から得られる操作位置まで応動することになる。した
がって、床面に凹凸があっても、略一定の操作力を加え
ている限り補助車輪は適正に接地した状態を維持するこ
とになり、そのような場所を通過する際にも移動台車に
所期の直進性能を有効に発揮させることができる。
With such a structure, by operating the operation lever, the auxiliary wheels can be selectively pressed against the floor surface according to the operation force to be grounded. In addition, since the mechanical transmission mechanism connects the operating lever and the auxiliary wheel when the operating lever is gripped, the operating lever receives a reaction force due to the auxiliary wheel touching the floor. To do. Then, when the auxiliary wheel passes through an uneven portion on the floor, the reaction force is reduced by the grounding state of the auxiliary wheel, and accordingly, the hand holding the operation lever again reacts with the operation force that balances the operation force. It will respond to the operating position obtained from the auxiliary wheels. Therefore, even if the floor surface is uneven, the auxiliary wheels will remain properly grounded as long as a substantially constant operating force is applied. It is possible to effectively demonstrate the straight-ahead performance of the period.

【0010】勿論、補助車輪を完全に床面から浮上させ
た場合には、首振り自在な前輪及び後輪のみが接地する
ため、移動台車の小回りが利き、横移動や斜め移動、旋
回等の動作を不都合なく行い得るものとなる。
Of course, when the auxiliary wheels are completely levitated from the floor, only the front wheels and the rear wheels, which can swing freely, are in contact with the ground. The operation can be performed without any inconvenience.

【0011】このように、本発明の移動台車は、走行時
の直進性と、ピッキング作業時などの旋回性とを同時に
両立させることができ、実用に供して極めて使い勝手の
良好なものとなり得る。
As described above, the moving carriage of the present invention can have both straight running characteristics during traveling and turning characteristics during picking work and the like at the same time, and can be extremely convenient for practical use.

【0012】補助車輪を、台車本体に回動可能に蝶持す
るとともに、機械式伝達機構を、前記補助車輪の回動端
を該補助車輪の上昇方向に付勢する弾性体と、前記回動
端と操作レバーの作動端とを連結するワイヤーと、この
ワイヤーを緊張状態に保持する保持具とから構成して、
操作レバーに入力される操作力により回動端を弾性体に
抗して付勢し補助車輪を降下させ得るようにした場合に
は、極めて簡素な構成を通じて補助車輪に所望の昇降動
作を付与することができる。
The auxiliary wheel is rotatably supported on the bogie main body, and the mechanical transmission mechanism is provided with an elastic body for urging the rotating end of the auxiliary wheel in the upward direction of the auxiliary wheel, and the rotation. A wire that connects the end and the operating end of the operating lever, and a holding tool that holds the wire in a tensioned state,
When the rotating wheel is urged against the elastic body by the operation force input to the operation lever so that the auxiliary wheel can be lowered, a desired lifting operation is given to the auxiliary wheel through an extremely simple configuration. be able to.

【0013】補助車輪の取付け位置は、操舵能力に最も
影響力が大きい点では左右一対の前輪の中央部に設ける
ことが望ましいが、後輪が左右一対に存在する場合には
その後輪間に配しても所望の機能を発揮させることがで
きる。勿論、前輪間及び後輪間にそれぞれ設ければ、比
較的直進性能が重視される用途に適合したものとなる。
It is desirable that the auxiliary wheels are mounted at the center of the pair of left and right front wheels in terms of the greatest influence on the steering ability. However, when the rear wheels are paired left and right, they are arranged between the rear wheels. However, the desired function can be exerted. Of course, if they are provided between the front wheels and between the rear wheels respectively, they will be suitable for applications where relatively straight running performance is relatively important.

【0014】[0014]

【発明の実施の形態】以下、本発明の一実施形態を、図
1〜図3を参照して説明する。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS.

【0015】この移動台車は、手動操作用の操作レバー
11を備えた台車本体1と、この台車本体1を滑動自在
に支持する一対の前輪2、2及び後輪3、3と、この台
車本体1を必要に応じて支持する補助車輪4と、操作レ
バー11に入力される操作力を補助車輪4に伝達してこ
れを床面Fに接地する位置に向かって連続的に移動させ
る機械式伝達機構5とから構成される。
This moving carriage has a carriage body 1 provided with an operating lever 11 for manual operation, a pair of front wheels 2, 2 and rear wheels 3, 3 for slidably supporting the carriage body 1, and the carriage body. 1 and an auxiliary wheel 4 that supports 1 as necessary, and a mechanical transmission that transmits the operating force input to the operating lever 11 to the auxiliary wheel 4 and continuously moves the auxiliary wheel 4 toward a position at which the floor surface F is grounded. And the mechanism 5.

【0016】詳述すると、台車本体1は、枠体状に組ん
だパイプフレーム12に底板13及び棚板14a、14
bを取着することによって構成されたもので、棚板14
a、14b上に商品等を載置し得るようになっている。
この台車本体1の長手方向の後端側には、前記パイプフ
レーム12の一部を利用して左右一対にハンドル15が
形成されており、これらのハンドル15を把持して押動
することにより、移動台車を手動で搬送し得るようにな
っている。なお、このハンドル15を握った状態で手を
掛け得る位置には、取付金具11a及び支軸11bを介
して回動可能に前記操作レバー11が枢着してある。
More specifically, the bogie main body 1 includes a pipe frame 12 assembled in a frame shape, a bottom plate 13 and shelf plates 14a and 14a.
The shelf board 14 is constructed by attaching b.
Products and the like can be placed on a and 14b.
A pair of left and right handles 15 are formed on the rear end side of the carriage main body 1 in the longitudinal direction by utilizing a part of the pipe frame 12. By gripping and pushing these handles 15, The mobile carriage can be manually transported. The operation lever 11 is pivotally mounted at a position where the user can hold his / her hand while holding the handle 15 through a mounting bracket 11a and a support shaft 11b.

【0017】パイプフレーム12の下部には、一対の前
輪2及び一対の後輪3が垂下した状態で取付けられてい
る。これらの前輪2及び後輪3は、鉛直軸心m、nを中
心として回転可能なブラケット21、31と、前記鉛直
軸心m、nに対し水平方向へ変位した部位においてそれ
らのブラケット21、31に水平軸心p、qを介して軸
着された車輪本体22、32とから構成され、全体が前
記鉛直軸心m、n回りを首振り旋回し得るようになって
いる。
A pair of front wheels 2 and a pair of rear wheels 3 are attached to the lower portion of the pipe frame 12 in a suspended state. The front wheels 2 and the rear wheels 3 are brackets 21 and 31 rotatable about the vertical axes m and n, and the brackets 21 and 31 at positions displaced in the horizontal direction with respect to the vertical axes m and n. And wheel main bodies 22 and 32 that are axially mounted via horizontal axes p and q, so that the entirety can be swung about the vertical axes m and n.

【0018】補助車輪4は、底板13の下面であって左
右の前輪2、2の中間に、転動方向Xを台車本体1の長
手方向、すなわち底板13の左右両縁13aの延出方向
に合致させて配設されたもので、ブラケット41と、こ
のブラケット41に固設されたカバー42と、このカバ
ー42に水平軸心oを介して軸着された車輪本体43と
から構成されている。そして、そのブラケット41の一
端41aを蝶番44を介して台車本体1の底板13の下
面に蝶着している。また、このブラケット41の回動端
41bは、底板13の一部に設けた透孔13aを貫通し
て上方に突出させてあり、その回動端41bを一部を水
平面とする逆L字形に成形している。
The auxiliary wheel 4 is on the lower surface of the bottom plate 13 and in the middle of the left and right front wheels 2, 2 with the rolling direction X in the longitudinal direction of the carriage main body 1, that is, the extending direction of the left and right edges 13a of the bottom plate 13. The bracket 41, the cover 42 fixed to the bracket 41, and the wheel body 43 axially attached to the cover 42 via the horizontal axis o are provided. . Then, one end 41 a of the bracket 41 is hinged to the lower surface of the bottom plate 13 of the carriage main body 1 via a hinge 44. The rotating end 41b of the bracket 41 penetrates through the through hole 13a formed in a part of the bottom plate 13 and projects upward, and the rotating end 41b is formed in an inverted L-shape having a part thereof as a horizontal plane. Molded.

【0019】機械式伝達機構5は、弾性体たる圧縮バネ
51と、ワイヤー52と、保持具たるチューブ55とを
具備してなる。圧縮バネ51は、前記ブラケット41の
回動端41bの水平面と底板13との間に弾設されたも
ので、底板13を足場にして補助車輪4を床面Fから浮
上する方向に弾性付勢している。ワイヤー52は、一端
52aを前記ブラケット41の回動端41bにワイヤー
挿通部材53a及びビス53bからなる止着具53を介
して固定され、他端52bを操作レバー11の作動端1
1cに太鼓5Aを介して固定されたもので、その中間部
が、該ワイヤー52を収容したチューブ55によって緊
張状態に保たれている。つまり、チューブ55は、一端
55aが底板13の下面に設けたチューブ当接具56に
当接し、他端55bが操作レバー11の取付金具11a
に当接させて配設してあり、それらチューブ当接具56
及び取付金具11aの間でワイヤー52に一定の緊張状
態を付与する役割を果たしている。図において57はブ
ラケット41aを水平姿勢で保持するためのストッパで
ある。
The mechanical transmission mechanism 5 comprises a compression spring 51 as an elastic body, a wire 52, and a tube 55 as a holder. The compression spring 51 is elastically provided between the horizontal surface of the rotating end 41b of the bracket 41 and the bottom plate 13, and elastically urges the auxiliary wheel 4 in a direction of floating the auxiliary wheel 4 from the floor surface F with the bottom plate 13 as a scaffold. are doing. The wire 52 has one end 52a fixed to the rotating end 41b of the bracket 41 via a fastener 53 composed of a wire insertion member 53a and a screw 53b, and the other end 52b of the operating end 1 of the operating lever 11.
It is fixed to 1c via a drum 5A, and an intermediate portion thereof is kept in a tension state by a tube 55 accommodating the wire 52. That is, one end 55a of the tube 55 abuts on the tube abutment tool 56 provided on the lower surface of the bottom plate 13, and the other end 55b of the tube 55 attaches to the fitting 11a of the operating lever 11.
The tube abutting member 56.
Also, it plays a role of imparting a certain tension to the wire 52 between the mounting bracket 11a. In the figure, 57 is a stopper for holding the bracket 41a in a horizontal posture.

【0020】次に、本実施形態の作動を説明する。操作
レバー11に手を掛けていない状態(図3における実線
状態)では、ワイヤー52には補助車輪4の荷重を打ち
消した後の圧縮バネ51による弾性力だけが作用するた
め、補助車輪4の回動端41bは圧縮バネ51によって
ブラケット41がストッパ57を介して底板13に当接
する位置にまで持ち上げられ、この結果、補助車輪4の
車輪本体43が床面Fから浮上する。このため、移動台
車は首振り旋回自在な一対の前輪2及び一対の後輪4の
計4輪によって旋回自在に支持され、小回りが利く状態
となり、横移動や斜め移動、旋回等の動作を不都合なく
行い得るものとなる。次に、この状態から操作レバー1
1に手を掛けて徐々に牽引すると(図3における想像線
及び矢印参照)、ワイヤー52がチューブ55の中を摺
動移動し、その牽引力を補助車輪4の回動端41bに連
続的に伝達するので、回動端41bが圧縮バネ51を圧
縮しながら降下し、これに伴いブラケット41が蝶番4
4の回りを回動して、その操作力に応じた位置まで補助
車輪4の車輪本体43を降下させる。そのため、操作力
がある一定の大きさを越えると、補助車輪4が床面Fに
接地することになる。この状態においては、他の前後輪
2、3が無方向性のものであり転動初期の指向性を欠い
ているのに対して、補助車輪4の転動方向Xは常に明確
に一定方向を指向しているため、ハンドル15を把持し
て移動台車を同方向Xに向かって付勢すれば、補助車輪
4が優先的に機能して、移動台車が前方に向かって移動
し始めることになる。また、一旦移動し始めた後は、前
後輪2、3は鉛直軸心m、nを基準にして接地箇所が進
行方向に対して送れ側に来るように旋回するため、転動
方向を前記補助車輪4の転動方向Xに合致させる。この
ため、移動台車全体としての直進走行機能が有効に発揮
されることになる。
Next, the operation of this embodiment will be described. In a state where the operation lever 11 is not touched (a solid line state in FIG. 3), only the elastic force of the compression spring 51 after canceling the load of the auxiliary wheel 4 acts on the wire 52, so that the auxiliary wheel 4 rotates. The moving end 41b is lifted by the compression spring 51 to a position where the bracket 41 contacts the bottom plate 13 via the stopper 57, and as a result, the wheel body 43 of the auxiliary wheel 4 floats above the floor surface F. Therefore, the movable carriage is rotatably supported by a pair of front wheels 2 and a pair of rear wheels 4 which can be swung and swiveled, and is in a state in which a small turn can be made, resulting in inconvenience of operations such as lateral movement, diagonal movement, and turning. It can be done without. Next, from this state, the operation lever 1
When the hand is put on 1 and gradually pulled (see the imaginary line and the arrow in FIG. 3), the wire 52 slides in the tube 55, and the pulling force is continuously transmitted to the turning end 41b of the auxiliary wheel 4. Therefore, the rotating end 41b moves down while compressing the compression spring 51, and accordingly, the bracket 41 moves toward the hinge 4.
The wheel body 43 of the auxiliary wheel 4 is lowered to a position corresponding to the operation force by rotating around 4. Therefore, when the operating force exceeds a certain magnitude, the auxiliary wheels 4 come into contact with the floor surface F. In this state, the other front and rear wheels 2 and 3 are non-directional and lack directivity in the initial stage of rolling, whereas the rolling direction X of the auxiliary wheel 4 is always clearly fixed. Since it is oriented, if the handle 15 is gripped and the moving carriage is biased in the same direction X, the auxiliary wheels 4 will function preferentially and the moving carriage will start moving forward. . Further, once the front and rear wheels 2 and 3 start to move, the front and rear wheels 2 and 3 turn with respect to the vertical axes m and n so that the ground contact point is on the feed side with respect to the traveling direction. Match the rolling direction X of the wheel 4. Therefore, the straight traveling function of the entire moving carriage is effectively exhibited.

【0021】このように、本実施形態の移動台車によれ
ば、操作レバー11を操作することによって、その操作
力に応じて補助車輪4を床面Fに選択的に押し付けて接
地させることができる。しかも、操作レバー11を把持
している状態では、操作レバー11と補助車輪4との間
が機械式伝達機構5によって連結されているため、操作
レバー11には補助車輪4が床面Fに接地することによ
る反力が作用する。そして、補助車輪4が床面F上の凹
凸がある箇所を通過するとき、その反力が補助車輪4の
接地状態によって減増し、それに応じて操作レバー11
を把持した手が、再び操作力と釣り合う反力が補助車輪
4から得られる操作位置まで自然に応動することにな
る。つまり、凹所を通過する際には操作レバー11の握
りが深くなり、凸部を通過する際には操作レバー11の
握りが浅くなる。したがって、床面Fに凹凸があって
も、略一定の操作力を加えている限り補助車輪4を適正
に接地させた状態を維持できることになり、そのような
場所を通過する際にも移動台車に所期の直進性能を有効
に発揮させることが可能となる。
As described above, according to the moving carriage of the present embodiment, by operating the operating lever 11, the auxiliary wheels 4 can be selectively pressed against the floor surface F according to the operating force to be grounded. . Moreover, when the operating lever 11 is being held, the operating lever 11 and the auxiliary wheel 4 are connected by the mechanical transmission mechanism 5, so that the auxiliary wheel 4 contacts the floor F on the operating lever 11. The reaction force by doing acts. Then, when the auxiliary wheel 4 passes through an uneven portion on the floor surface F, the reaction force thereof is reduced by the grounding state of the auxiliary wheel 4, and accordingly the operation lever 11 is moved.
The hand gripping will naturally react again to the operation position where the reaction force that balances the operation force is obtained from the auxiliary wheel 4. That is, the grip of the operation lever 11 becomes deep when passing through the recess, and the grip of the operation lever 11 becomes shallow when passing through the convex portion. Therefore, even if the floor surface F has irregularities, it is possible to maintain the state in which the auxiliary wheels 4 are properly grounded as long as a substantially constant operating force is applied, and even when passing through such a place, the moving carriage Therefore, it is possible to effectively exhibit the desired straight-ahead performance.

【0022】このように、本実施形態の移動台車は、走
行時の直進性と、ピッキング作業時などにおける旋回性
とを同時に両立させることができ、実用に供して極めて
使い勝手の良好なものとなり得る。
As described above, the moving carriage of the present embodiment can achieve both straight running characteristics during traveling and turning characteristics during picking work at the same time, and can be extremely convenient for practical use. .

【0023】しかも、補助車輪4を、台車本体1に回動
可能に蝶持しておき、機械式伝達機構5を、圧縮バネ5
1と、ワイヤー52と、チューブ55とからなる可撓性
を有したものとして構成しているため、極めて簡素な構
成を通じて補助車輪4に所望の昇降動作を付与すること
ができるだけでなく、ワイヤー52の引き回しに係る自
由度を大幅に向上させることができ、設計や製造、ある
いは取扱にも好都合なものとすることができる。
Moreover, the auxiliary wheel 4 is rotatably supported by the carriage main body 1, and the mechanical transmission mechanism 5 is compressed by the compression spring 5.
1, the wire 52, and the tube 55 are configured to have flexibility, and therefore, it is possible to impart a desired lifting operation to the auxiliary wheel 4 through a very simple configuration, and also to use the wire 52. It is possible to greatly improve the degree of freedom in routing, and it is also convenient for designing, manufacturing, or handling.

【0024】なお、各部の具体的な構成は、上述した実
施形態のみに限定されるものではない。例えば、上記実
施形態では補助車輪4が前輪2、2間に配設されている
が、図4に示すように後輪3、3間に配設することもで
き、或いは前後両方に配設しておくこともできる。ま
た、移動台車は前輪2又は後輪3の一方を単輪にして全
体を三輪タイプのものにしても構わない。さらに、弾性
体は圧縮バネに代えて引っ張りバネを用いることがで
き、保持具はチューブ以外に滑車等を用いて緊張状態を
保持することもできる。その他の構成についても、本発
明の趣旨を逸脱しない範囲で種々変形が可能である。
The specific structure of each section is not limited to the above-described embodiment. For example, although the auxiliary wheel 4 is disposed between the front wheels 2 and 2 in the above embodiment, it may be disposed between the rear wheels 3 and 3 as shown in FIG. You can also keep it. Further, the moving carriage may be a three-wheel type in which one of the front wheel 2 and the rear wheel 3 is a single wheel. Further, the elastic body may be a tension spring instead of the compression spring, and the holder may be a tension pulley or the like in addition to the tube. Other configurations can be variously modified without departing from the spirit of the present invention.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施形態を示す斜視図。FIG. 1 is a perspective view showing an embodiment of the present invention.

【図2】同実施形態の要部拡大斜視図。FIG. 2 is an enlarged perspective view of a main part of the same embodiment.

【図3】同実施形態の作用説明図。FIG. 3 is an operation explanatory view of the embodiment.

【図4】本発明の他の実施形態を示す斜視図。FIG. 4 is a perspective view showing another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…台車本体 2…前輪 3…後輪 4…補助車輪 5…機械式伝達機構 11…操作レバー 41b…回動端 51…弾性体(圧縮バネ) 52…ワイヤー 55…保持具(チューブ) F…床面 X…長手方向 DESCRIPTION OF SYMBOLS 1 ... Bogie main body 2 ... Front wheel 3 ... Rear wheel 4 ... Auxiliary wheel 5 ... Mechanical transmission mechanism 11 ... Operation lever 41b ... Rotating end 51 ... Elastic body (compression spring) 52 ... Wire 55 ... Retainer (tube) F ... Floor X ... longitudinal direction

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】手動用の操作レバーを備えた台車本体と、
この台車本体の底部に首振り自在に配設された前輪及び
後輪と、前記台車本体の底部に一定の方向に向けて首振
り不能に配設され且つ床面に対して昇降動作を行い得る
ように前記台車本体に支持された補助車輪と、前記操作
レバーに加えられる操作力を前記補助車輪の昇降動作に
連続的に変換する機械式伝達機構とを具備してなること
を特徴とする移動台車。
1. A trolley body having a manual operation lever,
A front wheel and a rear wheel that are swingably disposed on a bottom portion of the carriage body, and a swingable movement that is disposed on the bottom portion of the carriage body in a certain direction so as not to swing, and can perform an ascending / descending operation with respect to a floor surface. And a mechanical transmission mechanism for continuously converting an operation force applied to the operation lever into an ascending / descending operation of the auxiliary wheel. Dolly.
【請求項2】補助車輪を、台車本体に回動可能に蝶持す
るとともに、機械式伝達機構を、前記補助車輪の回動端
を該補助車輪の上昇方向に付勢する弾性体と、前記回動
端と操作レバーの作動端とを連結するワイヤーと、この
ワイヤーを緊張状態に保持する保持具とから構成し、操
作レバーに入力される操作力により回動端を弾性体に抗
して付勢し補助車輪を降下させるようにしていることを
特徴とする移動台車。
2. An elastic body for rotatably supporting an auxiliary wheel on a bogie main body, and a mechanical transmission mechanism for urging a rotating end of the auxiliary wheel in an ascending direction of the auxiliary wheel. It is composed of a wire that connects the rotating end and the operating end of the operating lever, and a holder that holds the wire in a tensioned state, and the rotating end is resisted against the elastic body by the operating force input to the operating lever. A mobile trolley characterized by being urged to lower auxiliary wheels.
【請求項3】前輪が左右一対に配設され、補助車輪がそ
の左右の前輪の間に配設されていることを特徴とする請
求項1記載の移動台車。
3. A mobile truck according to claim 1, wherein the front wheels are arranged in a pair on the left and right, and the auxiliary wheels are arranged between the left and right front wheels.
【請求項4】後輪が左右一対に配設され、補助車輪がそ
の左右の後輪の間に配設されていることを特徴とする請
求項1又は3記載の移動台車。
4. The moving carriage according to claim 1, wherein the rear wheels are arranged in a pair on the left and right, and the auxiliary wheels are arranged between the left and right rear wheels.
JP7259935A 1995-10-06 1995-10-06 Moving trolley Expired - Fee Related JP2891145B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7259935A JP2891145B2 (en) 1995-10-06 1995-10-06 Moving trolley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7259935A JP2891145B2 (en) 1995-10-06 1995-10-06 Moving trolley

Publications (2)

Publication Number Publication Date
JPH0999839A true JPH0999839A (en) 1997-04-15
JP2891145B2 JP2891145B2 (en) 1999-05-17

Family

ID=17340975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7259935A Expired - Fee Related JP2891145B2 (en) 1995-10-06 1995-10-06 Moving trolley

Country Status (1)

Country Link
JP (1) JP2891145B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113696814A (en) * 2021-09-13 2021-11-26 湖北知视明健康科技有限公司 Portable equipment for correcting eyesight of eyes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5261058U (en) * 1975-10-30 1977-05-04
JPS53158365U (en) * 1977-05-18 1978-12-12
JPS61104275U (en) * 1984-12-14 1986-07-02
JPH0492786A (en) * 1990-08-09 1992-03-25 Nissan Motor Co Ltd Running device for unmanned carriage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5261058U (en) * 1975-10-30 1977-05-04
JPS53158365U (en) * 1977-05-18 1978-12-12
JPS61104275U (en) * 1984-12-14 1986-07-02
JPH0492786A (en) * 1990-08-09 1992-03-25 Nissan Motor Co Ltd Running device for unmanned carriage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113696814A (en) * 2021-09-13 2021-11-26 湖北知视明健康科技有限公司 Portable equipment for correcting eyesight of eyes

Also Published As

Publication number Publication date
JP2891145B2 (en) 1999-05-17

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