JP2007210579A - Brake opening/closing device for conveying truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively optimize slight spring force to obtain tire braking force by attaching a release lever device to a grip pipe of a push handle of a truck, attaching a main brake body to a truck frame 1 and connecting the release lever device to the main brake body with an operation cable. <P>SOLUTION: In this braking device, the truck is traveled with a release lever pressed down, and when the release lever is released, the lever is returned so as to automatically apply braking. In a process in which a straight line connecting upper ends 5d, 5c of a metal fitting for pressing a wheel tire becomes in alignment with link fulcrums 12a, 12b of a drive body 17, directional change is performed. In a process of conversion to large force immediately before a dead point of the alignment, a curve in the Fig. 14 is applied. The curve between α0 to θ1 is made correspond to a portion with which the tire contacts. At the time of pulling of a spring, a brake metal fitting is opened and released, and at the time of releasing of the spring, a toggle curve output strong part is converted to press force by return force of the spring. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、運搬台車のブレーキ装置に関する。  The present invention relates to a brake device for a transport cart.

従来より台車車輪にブレーキ装置を付設されたものは多く有る、しかし台車を使用するときブレーキを意識しなくても搬送時自動的にブレーキが解除され停止し台車から手が離れとき自動的にブレーキが掛かる安全システムを構築する構造である。  Many trucks have been equipped with a brake device so far. However, when using a truck, the brake is automatically released and stopped when transported without being aware of the brake. It is a structure to build a safety system that takes

発明が解決しよとする課題Problems to be solved by the invention

台車は安全上の理由から、荷の積み下ろし時、使用しないとき等停止中は自動車と同じように停車時のブレーキが必要で有ることは望まれている、工場の組立部品の運搬、公道での集配等通路や作業場の傾斜に左右されず所望の位置に停止して動かないことが望ましい。  For safety reasons, it is desirable that the dolly needs to be braked when the vehicle is stopped when loading and unloading, when not in use, etc. It is desirable to stop at a desired position and not move regardless of the passage of collection and delivery or the inclination of the workplace.

しかし工場などの荷役で既に使用している台車は、台数が多く駐車ブレーキが付設されていないものも多く有り、これら台車車輪にブレーキ装置の有る車輪を付ける或い交換することが安全上の観点から望まれている。  However, there are many carts already used for cargo handling at factories and the like, and there are many vehicles that do not have parking brakes attached. It is a safety point of view to attach or replace these cart wheels with brake devices. It is desired from.

従来駐車ブレーキの操作システムとして、停止後足踏みによりブレーキを掛ける、スタート前に再び足踏みによる解除等の操作を必要とし掛け忘れる等の問題も有った。  Conventional parking brake operation systems also have problems such as applying the brakes by stepping after stopping, and forgetting to apply the brakes by releasing the pedals before starting.

特開２００３−８９３５６号に開示された足踏みブレーキ式の例に見られるブレーキ装置は機能としての支障は存在しないとしてもブレーキを掛ける或いはブレーキを解除するとゆう操作に意識が介在しブレーキ操作を毎回行わねばならず煩わしく面倒で有りこの煩わしい或いは手間が掛かる或いは忘れる等これらを解決することが問題で有った。  The brake device shown in the example of the stepping brake type disclosed in Japanese Patent Application Laid-Open No. 2003-89356 performs the brake operation every time when the brake is applied or when the brake is released, even when there is no obstacle as a function. There is a problem to solve these problems such as being troublesome and cumbersome, troublesome, troublesome or forgetting.

本装置はコスト上最も安価なバネを使用しこれら問題を解決するシステムを可能とした。
本操作上のシステムはブレーキを解除するハンドルを下へ押さえながら搬送し、台車を離れ手を離すときハンドルが上に戻りブレーキ掛かるシステムとし、解除するときバネを引きながらブレーキを開放し同時にバネを引くエネルギーを蓄え、手を離しバネが戻るとき戻りのバネエネルギーのみでブレーキを掛け大きな制動力を得る構造に拘るもので、前記システムのブレーキ意識操作は無くなり忘れることも無く安全で便利で有る。This device enables a system to solve these problems by using the cheapest spring in terms of cost.
In this operation system, the handle is released while holding down the handle to release the brake, and when the hand is released and the hand is released, the handle is turned up and the brake is applied.When releasing, the brake is released while pulling the spring and the spring is simultaneously released. It is related to the structure in which the energy to be pulled is stored and the brake is released only by the return spring energy when the hand is released and the spring returns to obtain a large braking force, and the brake conscious operation of the system is not lost and it is safe and convenient.

装置構成上最も困難な問題は大きい制動力のパワーを手で押す力の範囲内の押し力で賄うことで有る。
バネ力を大きくするほど制動力は大きく成るが手で支障無く押す範囲のバネ力に限られ、単にバネ力をそのまま使用するのでは無く増力装置としてトグル機構を応用し制動力を元のバネ力の数倍に増幅してタイヤの押し力を発揮させ、且つブレーキが掛かると同時にロックが掛かるブレーキ開閉装置に関しその機構は下記による。The most difficult problem in the construction of the device is to cover the power of a large braking force with a pushing force within a range of pushing force by hand.
The greater the spring force, the greater the braking force, but it is limited to the spring force that can be pushed without any trouble by hand. Instead of using the spring force as it is, the toggle mechanism is applied as a booster to apply the braking force to the original spring force. The mechanism of the brake opening and closing device that amplifies the tire by several times and exerts the pushing force of the tire and locks at the same time as the brake is applied is as follows.

トグル機構を応用するものでブレーキ制動は小さなバネにも拘わらず大きな制動押し力を発揮でき、僅かな操作力でリンク機構が作動するため車輪のブレーキ操作力は著しく軽減する、これにより解除レバーの走行時の押す力は軽減されて軽く成り、又解除レバーを単に離すのみで巨大な制動力を得ることが可能と成った。  Applying a toggle mechanism, brake braking can exert a large braking pushing force despite a small spring, and the link mechanism operates with a slight operating force, so the brake operating force of the wheel is remarkably reduced. The pushing force during driving is reduced and lightened, and a huge braking force can be obtained by simply releasing the release lever.

トグル機構を応用したの特性曲線を図１４に示し、駆動体角度と作動距離変位、図１５に駆動体角度と発生荷重をグラフに表したもので有る。  A characteristic curve to which the toggle mechanism is applied is shown in FIG. 14, and the driving body angle and the working distance displacement are shown in FIG. 15, and the driving body angle and the generated load are shown in a graph.

図１は、台車フレーム１の下面に本装置ブレーキ体６を設置し台車ハンドル１ａにブレーキを解除する解除レバー２を設置しその間の操作を伝達するワイヤーケーブル３にて接続した図を示し、解除レバー２はブレーキ本体のバネに引かれ上がった状態でありブレーキが掛かっている状態を示す。  FIG. 1 shows a diagram in which the device brake body 6 is installed on the lower surface of the carriage frame 1 and a release lever 2 for releasing the brake is installed on the carriage handle 1a and connected by a wire cable 3 that transmits the operation between them. The lever 2 is pulled up by the spring of the brake body and shows a state where the brake is applied.

図２は、解除ブレーキレバー２を下へ押しワイヤー１６を上に引き上げブレーキ体６のバネを引きタイヤ７に制動を掛けるブレーキ板５が開きブレーキが開放された状態を示す。  FIG. 2 shows a state in which the release brake lever 2 is pushed down, the wire 16 is pulled up, the spring of the brake body 6 is pulled, the brake plate 5 for braking the tire 7 is opened, and the brake is released.

図３は、本ブレーキ装置を台車に取り付けた全容を示しブレーキが掛かり停止している状態を示す。  FIG. 3 shows the entire state where the brake device is attached to the carriage, and shows a state where the brake is applied and stopped.

図４は、本ブレーキ装置を台車に取り付けた全容を操作者側から見た図を示す。
台車の下面に左右対称にブレーキ車輪が取り付けられ各１本のケーブルが解除レバーより分配接続され解除レバーにより左右同時にブレーキ操作を行う。FIG. 4 shows a view of the entire state in which the brake device is attached to the carriage as viewed from the operator side.
Brake wheels are attached to the lower surface of the carriage symmetrically, and one cable is distributed and connected from the release lever, and the brake is operated simultaneously by the release lever.

図５は、図１ブレーキ体６の内部構造を示し、ブレーキが掛かった状態を示す。
ブレーキが掛かった状態は、８ａ・８ｂ両フレーム側面板に相対し貫通する各軸、リンク回動軸１０、左右両側に右ブレーキ支点９ａと左ブレーキ支点９ｂを設け、該ピンの下先端部がタイヤ７に当たり上部延長部に右ブレーキ駆動ピン５ｃを設けタイヤ押さえ金具を形成する、反対も同形状とし５ｂを設け連動して回動可能に形成する。FIG. 5 shows the internal structure of the brake body 6 of FIG. 1 and shows a state where the brake is applied.
When the brake is applied, the shafts 8a and 8b are opposed to the side plates of both frames, the link rotating shaft 10, the right brake fulcrum 9a and the left brake fulcrum 9b are provided on the left and right sides, and the lower tip of the pin is The right brake drive pin 5c is provided in the upper extension portion to contact the tire 7 to form a tire pressing metal fitting, and the opposite is also formed in the same shape and 5b is provided so as to be able to rotate in conjunction with it.

前記リンク回動軸１０は、右リンク駆動ピン１２ａと左リンク駆動ピン１２ｂと一体を成し駆動体を形成し外部にてワイヤー駆動腕１０ａが固着され一体回転としこれを図１１の駆動体１７とする、前記右リンク駆動ピン１２ａと前記右ブレーキ駆動ピン５ｃの２軸に遊動勘合し連結する右遊動リンク１３ａとし同様に対象とする左遊動リンク１３ｂを設ける。
上記構成形状は、右より５ｃ・１２ａ・１０・１２ｂ・５ｄの軸及びピンが一直線状を成す状態で軸１０の時計方向回転を止めるリンクストッパー軸１４が８ａｂに挿通して設けられ駆動体１７の右方向回転を止め、一直線を成す状態でタイヤを挟む。The link rotation shaft 10 is integrally formed with the right link drive pin 12a and the left link drive pin 12b to form a drive body, and the wire drive arm 10a is fixed to the outside so as to be integrally rotated. The right floating link 13b is provided in the same manner as the right floating link 13a that is loosely fitted and connected to the two shafts of the right link driving pin 12a and the right brake driving pin 5c.
The above-described configuration is such that the link stopper shaft 14 that stops the clockwise rotation of the shaft 10 with the shafts and pins of 5c, 12a, 10, 12b, and 5d in a straight line is inserted through the 8ab from the right, and the driving body 17 Stop the right rotation of the tire and sandwich the tire in a straight line.

図６は左右ブレーキ板５が開きブレーキが開放された状態を示す。
前記リンク回動軸１０は後述する側面板８ｂを貫通延長し外部にて引きバネ１５により絶えず時計方向に回転力が付勢され、付勢を止めるストッパー軸１４に規制されブレーキが掛かっている状態図６からリンク腕１１に前図１のブレーキ操作用の解除レバー２が押され左回動し両遊動リンク１３ａｂが内側に引かれブレーキ板５の先端が開いたときのリンクの形状を示す。FIG. 6 shows a state in which the left and right brake plates 5 are opened and the brake is released.
The link rotating shaft 10 extends through a side plate 8b, which will be described later, and is continuously energized clockwise by a pulling spring 15 at the outside, and is controlled by a stopper shaft 14 that stops the energizing and is braked. FIG. 6 shows the shape of the link when the release lever 2 for brake operation of FIG. 1 is pushed to the link arm 11 to rotate leftward, the floating links 13ab are pulled inward, and the tip of the brake plate 5 is opened.

図７は、前図５ブレーキ体６の概観を示し、ブレーキが掛かった状態を示す。
リンク駆動軸１０はフレーム側面板８ａより前方に突出された軸１０にワイヤー駆動腕１０ａが固着され、該先端部に駆動ピン１０ｂが設けられ、一方隣接してフレーム側面板８ａの前記左ブレーキ支点９ｂが前方に突き出し引きバネ１５の片端を止め、該バネ他端を前記駆動ピン１０ｂに掛け両ピン１０ｂ９ｂ間へ絶えず引き荷重を掛ける、該構成によりワイヤ駆動腕１０ａに時計回りトルクを常時発生せしめ、且つ駆動ピン１０ｂにワイヤーケーブル１６が延長され該端部を止め、ワイヤー挿通他端を前図１のワイヤー上端１６ａへ連繋する。FIG. 7 shows an overview of the brake body 6 in FIG. 5 and shows a state where the brake is applied.
The link drive shaft 10 has a wire drive arm 10a fixed to a shaft 10 projecting forward from the frame side plate 8a, a drive pin 10b is provided at the tip, and adjacent to the left brake fulcrum of the frame side plate 8a. 9b protrudes forward to stop one end of the pulling spring 15, and the other end of the spring is hooked on the driving pin 10b to constantly apply a pulling load between the two pins 10b9b. The wire cable 16 is extended to the drive pin 10b to stop the end, and the other end of the wire is connected to the wire upper end 16a of FIG.

前記図１の解除レバー２は発生したバネ引き力Ｆａによりワイヤー１６を介し引かれ上に持ち上げている、前記引きバネトルクは前記図５に示すストッパー軸１４に回転を止められ５ｃ５ｄを結ぶ一直線状に止まりブレーキ板５ａ５ｂがブレーキ支点９ａ９ｂを中心として旋回しタイヤ７の外周を挟むように押し付け車輪を制動する。  The release lever 2 in FIG. 1 is pulled up via the wire 16 by the generated spring pulling force Fa and lifted up. The pulling spring torque is stopped by the stopper shaft 14 shown in FIG. 5 and is linearly connected to 5c5d. The stop brake plate 5a5b turns around the brake fulcrum 9a9b and presses so as to sandwich the outer periphery of the tire 7 to brake the wheel.

図８は、前図６ブレーキ体６の概観を示し、ブレーキが開放された状態を示す。
前記図２の解除レバー２を押すことによりバネ引き力Ｆａに抗しＦｂが発生し引かれブレーキ板５ａ５ｂが開きブレーキが開放される。FIG. 8 shows an overview of the brake body 6 in FIG. 6 and shows a state in which the brake is released.
When the release lever 2 in FIG. 2 is pressed, Fb is generated against the spring pulling force Fa, and the brake plate 5a5b is opened to release the brake.

図９は、前図５ブレーキ体６の上面の断面を示し、ブレーキが掛かった状態を示す。
リンク回動軸１０を中心として右リンク腕１１ａ、右リンク駆動ピン１２ａ、左リンク腕１１ｂ、左リンク腕１２ｂ、ワイヤー駆動腕１０ａ、駆動ピン１０ｂは一体を成し、駆動ピン１０ｂと左ブレーキ支点９ｄの延長端間に引きバネ１５が掛けられ、該バネの逆方向へ引くワイヤー１６が繋がり、左リンク駆動ピン１２ｂは左ブレーキ駆動ピン５ｄ、右リンク駆動ピン１２ａは右ブレーキ駆動ピン５ｃを外部方向へ押し、右ブレーキ板５ａは右ブレーキ支点９ａ、左ブレーキ板５ｂは左ブレーキ支点９ｂ中心として回動してブレーキを掛ける。FIG. 9 shows a cross section of the upper surface of the brake body 6 in FIG. 5 and shows a state where the brake is applied.
The right link arm 11a, the right link drive pin 12a, the left link arm 11b, the left link arm 12b, the wire drive arm 10a, and the drive pin 10b are integrated with the link rotation shaft 10 as a center, and the drive pin 10b and the left brake fulcrum A pulling spring 15 is hooked between the extended ends of 9d, and a wire 16 that pulls in the opposite direction of the spring is connected. The left link driving pin 12b is connected to the left brake driving pin 5d, and the right link driving pin 12a is connected to the right brake driving pin 5c. The right brake plate 5a rotates about the right brake fulcrum 9a and the left brake plate 5b rotates about the left brake fulcrum 9b to apply the brake.

タイヤ押す力は、右から５ｃと１２ａが１３ａリンクで軸１０と水平を成し、左から５ｄと１２ｂが１３ｂリンクと水平を成し５ｃと５ｄは水平一直線状と成ってリンクストッパー１４にバネ発生トルクを支える構造とし、該構造物の水平張り力でタイヤ押し力と均衡を保つ、図示バネ力Ｆはリンクストッパー軸１４で受け止めるのみで、バネ力が直接タイヤを押す力とは成らない。  The tire pushing force is such that 5c and 12a from the right are parallel to the shaft 10 with a link 13a, 5d and 12b from the left are horizontal to the link 13b, and 5c and 5d are in a horizontal straight line and spring to the link stopper 14. The structure is configured to support the generated torque, and the illustrated spring force F, which is balanced with the tire pressing force by the horizontal tension of the structure, is received only by the link stopper shaft 14, and the spring force does not directly press the tire.

図１１は、図１のブレーキ体６の作用力を記した構造図を示し、ブレーキが掛かった状態を示す。
前記リンク回動軸１０を中心として一体構造を成す駆動体１７は、バネ力Ｆａに引かれストッパー軸１４に当たり５ｃ５ｄを結ぶ直線Ｘを形成する、この一直線を成す構造物の張り力は両リンクの外側へ押す力Ｆ１と−Ｆ１と成りリンク支点９ａと９ｄにより方向を転換しタイヤを押す力力Ｆ２及び−Ｆ２と変換され押した力と均衡を保つ図を示す。FIG. 11 is a structural diagram showing the acting force of the brake body 6 of FIG. 1 and shows a state where the brake is applied.
The driving body 17 having an integral structure with the link rotating shaft 10 as the center is pulled by the spring force Fa to form a straight line X that contacts the stopper shaft 14 and connects 5c5d. A diagram is shown in which force F1 and -F1 that are pushed outward and the direction is changed by link fulcrums 9a and 9d to be converted into force forces F2 and -F2 that push the tire and balanced with the pushed force.

図１２は、バネ１５がワイヤー１６引かれα１に達してブレーキが解除された状態を示す、ワイヤーが引かれ駆動体１７が回転しリンクがブレーキ板上部を引き爪が開く、引く力Ｆｂはバネが伸びる距離の荷重に等しい。  FIG. 12 shows a state in which the spring 15 is pulled by the wire 16 and reaches α1, and the brake is released. The wire 17 is pulled, the driving body 17 rotates, the link pulls the upper part of the brake plate, the pawl opens, and the pulling force Fb is the spring. Is equal to the distance load.

図１３は、図１１構造体回動軸１０のバネ力で引かれ戻る間の作用角度とブレーキ板５の作用距離の関係を示し、ブレーキが開く或いは閉じる迄の過程を４分割した図を示す、回動軸角度θ１に対しδ１、θ２にδ２と変化し回動角と開閉距離は等比関係では無く水平線Ｘに接近するほど距離は減少し逆に力は増加大する関係に有り一般にこれをトグル構造と呼ぶ。  FIG. 13 shows the relationship between the working angle during pulling back by the spring force of the structure rotating shaft 10 in FIG. Rotating shaft angle θ1 changes to δ1 and θ2 to δ2, and the rotating angle and opening / closing distance are not in an equality relationship, but the distance decreases as the distance to horizon X approaches, and conversely the force increases. Is called a toggle structure.

バネの引き戻す力は前期解除レバーを押しその戻り力に限定され僅かで有る、又駆動軸回動角度αの戻る角度もθ４に限定され僅かで有る、この僅かなバネの引き力を最大限有効に利用するためタイヤが当たり押す間は大きな力を、力を必要としない空間移動時は大きく作用する距離を選択できる回動角θと開閉距離変位δの作動図を示す。  The pulling force of the spring is limited to the return force by pushing the release lever in the previous period, and the return angle of the drive shaft rotation angle α is also limited to θ4. The operation diagram of the rotation angle θ and the opening / closing distance displacement δ that allows selection of a large force while the tire hits and pushes to use it, and a distance that acts greatly during space movement that does not require force is shown.

図１４は図１３ブレーキ作動図に於ける駆動体角度θと作動距離変位δの関係をグラフに表したものを示す。
グラフは横軸に駆動体角度θ立て軸に作動距離変位δを取り駆動角度θの変化位置δを示しグラフ左側はブレーキ閉を示しリンクが一直線に有り、右へ行くに従いタイヤ押さえ金具がタイヤから離れる距離を示す、α０〜θ１の間δ１距離とθ３〜θ４は同角度でも作動距離は１０倍程度異なることがグラフから読み取れる。FIG. 14 is a graph showing the relationship between the driving body angle θ and the working distance displacement δ in the brake operation diagram of FIG.
The graph shows the driving body angle θ on the horizontal axis, the working distance displacement δ on the vertical axis, and the change position δ of the driving angle θ. The left side of the graph shows the brake closed, and the link is in a straight line. It can be seen from the graph that even if the δ1 distance between α0 and θ1 and θ3 to θ4 are the same angle, indicating the distance away, the working distance differs by about 10 times.

図１５は、図１３ブレーキ作動図に於ける駆動体角度θとタイヤ押し荷重Ｐの関係をグラフに表したものを示す、グラフは横軸に駆動体角度θ立て軸に押し荷重Ｐを表し、左側α０の点はリンクが一直線に成り荷重は最高値を示す、右方に行くに従い押し金具が開き押し荷重は減少する、α０の点で荷重は最高を示しα４では荷重値０を示す。  FIG. 15 is a graph showing the relationship between the driving body angle θ and the tire pressing load P in the brake operation diagram of FIG. 13. The horizontal axis represents the driving body angle θ and the vertical axis represents the pressing load P. On the left side α0, the link is in a straight line and the load shows the maximum value. The pusher metal opens and the pushing load decreases as it goes to the right. The point at α0 shows the highest load, and α4 shows the load value 0.

この荷重線の変化はリンクが一直線の死点に向かう過程で荷重の方向が転換し一直線に成る前図Ｘ線上では死点に到達しタイヤ押し状態でロックが掛かった状態に成り、ロック状態では理論荷重値無限大で有る為タイヤ側からは戻すことが出来ない。  This change in the load line changes the direction of the load in the process of the link going to a straight dead center, and the dead line is reached on the X-ray in the previous figure, and the lock is applied when the tire is pushed. Since the theoretical load value is infinite, it cannot be returned from the tire side.

押し金具がタイヤに接触する点はα０〜θ１間に相当しθ１〜θ４の間は空間の開閉に相当させタイヤを押すところのみ大きい押し力を発揮させ、タイヤを離れた空間時は移動距離を大きく取ることができる。  The point where the metal fitting comes into contact with the tire corresponds to between α0 and θ1, and between θ1 and θ4 corresponds to opening and closing of the space so that a large pressing force is exerted only when the tire is pushed, and the movement distance is increased in the space away from the tire. Can take big.

バネ荷重は、前記解除レバーを押した状態即ち引き状態の荷重をＦｂとしα０へ向かうに従いブレーキは閉に向かう、α０接近に従いバネ荷重は減衰するにも拘らずタイヤを押す力は増加に向かいバネ取付長に達するＦａの最終地点では最高値に達する。  The spring load is the state in which the release lever is pressed, that is, the pulling state is Fb, the brake is closed as it goes to α0, and the spring pushing force decreases even though the spring load is attenuated as it approaches α0. The maximum value is reached at the final point of Fa that reaches the mounting length.

発明の効果The invention's effect

制動力は押し操作力の戻りバネ力を利用する、バネ力は細いワイヤーケーブルを伝達して引く為ワイヤーの強度や耐久力の問題と、解除レバーの手による押し操作力の軽減の問題から押し力を限定され強いバネは使用できない、一方タイヤを制動する押し力は巨大で有り、操作荷重で制動荷重をそのまま使用することは不足を意味し、増加の必要が有る、仮に解除レバーのワイヤー引き力を５ｋｇとするとその１０倍の５０Ｋｇを程度を必要とし、如何にして増力装置を組み込むかに関る。  The braking force uses the return spring force of the push operation force. The spring force is pushed by the problem of the strength and durability of the wire because it transmits and pulls the thin wire cable, and the problem of reducing the push operation force by the hand of the release lever. Strong springs with limited force cannot be used. On the other hand, the pushing force to brake the tire is enormous, and it is insufficient to use the braking load as it is with the operation load, and it is necessary to increase. If the force is 5 kg, 50 kg, which is 10 times that, is required, and it depends on how the power booster is incorporated.

図１１を参照に、駆動体１７がバネの戻り力により、α１からα０へ戻る過程でリンク１３ａｂが一直線Ｘの死点に近ずくに従い方向を転換し作用力が大きく変わる、この特性に鑑みブレーキ板５ａｂがタイヤに当たる位置の漸近線近くに設定し、タイヤを離れた空間時は作動距離を大きく取り、僅かなバネ力を最大限有効に活用しタイヤ制動力を得た。  Referring to FIG. 11, in the process in which the driving body 17 returns from α1 to α0 due to the return force of the spring, the link 13ab changes direction as it approaches the dead center of the straight line X, and the acting force changes greatly. The plate 5ab was set near the asymptotic line of the position where it hits the tire. When the space was away from the tire, the working distance was increased, and the slight spring force was utilized to the maximum extent to obtain the tire braking force.

リンク１３ａｂが一旦直線を形成するとタイヤ側からの押し力で押し戻すことは出来ない、これは駆動体１７を回転させる作用力方向が９０°異なるためロック状態に成りブレーキの機能が一層安全で強力に保たれる。  Once the link 13ab forms a straight line, it cannot be pushed back by the pushing force from the tire side. This is because the direction of the acting force that rotates the driving body 17 is different by 90 °, so that the lock function is achieved and the brake function is safer and stronger. Kept.

発明の実施するための最良の形態BEST MODE FOR CARRYING OUT THE INVENTION

図１において、台車の押しハンドルの握りパイプに解除レバー２装置を付け、台車フレーム１に本ブレーキ体６を付けその間を操作ケーブルにて連結し、本システムを構成する。  In FIG. 1, the release lever 2 device is attached to the grip pipe of the push handle of the carriage, and the brake body 6 is attached to the carriage frame 1 and connected between them by an operation cable to constitute the present system.

図２において、解除レバー２を下へ押した図を示す、解除レバーはワイヤー１６を引きブレーキ体６のブレーキ板５を開きながらバネ１５を引く、台車移送時はこの開状態を保ち、停止後手を離すとバネの引き力により解除レバーが戻りブレーキ板が閉じブレーキが掛かりロック状態の制動力を可能とした。  In FIG. 2, the release lever 2 is pushed downward. The release lever pulls the wire 16 and pulls the spring 15 while opening the brake plate 5 of the brake body 6. When released, the release lever is returned by the pulling force of the spring, the brake plate is closed and the brake is applied, enabling the braking force in the locked state.

本ブレーキ装置は、タイヤを制動する大きい力を得るに、手で操作できる範囲の僅かなバネ力にトグル機構を組み込み、トグル機構特性を応用しタイヤ押し力を増強した。  In order to obtain a large force for braking the tire, this brake device incorporates a toggle mechanism into a slight spring force within the range that can be operated by hand, and applies the toggle mechanism characteristics to enhance the tire pushing force.

上記構成は台車の使用を安全にし、便利で有りブレーキシステムの最良の形態を取る。  The above configuration makes the use of the truck safe, convenient and takes the best form of the brake system.

本発明の取付の形態を示し、停止時のブレーキが掛かった状態図    A diagram showing the form of attachment according to the present invention, and a brake applied when stopping 本発明の取付の形態を示し、走行時のブレーキが開放された状態図    The state figure which shows the form of attachment of this invention and the brake at the time of driving | running | working was open | released 台車に本ブレーキ装置が取付られたシステム全体の側面図    Side view of the entire system with this brake device attached to the carriage 台車に本ブレーキ装置が取付られた全体の後面図    Rear view of the whole with the brake device attached to the carriage 車輪ブレーキ本体装置のブレーキがタイヤを押す構造の断面図    Sectional view of the structure in which the brake of the wheel brake body unit pushes the tire 車輪ブレーキ本体装置のブレーキが開放された構造の断面図    Sectional view of the structure where the brake of the wheel brake body device is released 車輪ブレーキ装置本体の概観正面図でバネが戻った状態を示す    The front view of the main body of the wheel brake device shows the spring returned. 車輪ブレーキ装置本体の概観側面図でバネを引っ張った状態    The spring is pulled in the side view of the wheel brake device 車輪ブレーキ装置の上面配列図でバネが戻りブレーキが掛かった図    A diagram of the top view of the wheel brake device with the springs returning and the brakes applied 車輪ブレーキ装置の上面配列図でブレーキ開でバネが伸びた図    The top view of the wheel brake device shows the spring extended when the brake is opened. 車輪ブレーキ装置のリンクが一直線に成りロック状態の作用力線    The acting force line in the locked state where the link of the wheel brake device is in a straight line 車輪ブレーキ装置のワイヤーを引き開に成りバネが伸びた図を示す    The figure shows that the spring of the wheel brake device is pulled out and the spring is extended 車輪ブレーキ装置の駆動角θとブレーキ板の作動用距離δの関係図    Relationship diagram between wheel brake device drive angle θ and brake plate operating distance δ ブレーキ装置トグル特性の駆動角θと作動距離変位δの関係グラフ    Relationship graph between drive angle θ and working distance displacement δ of brake device toggle characteristics ブレーキ装置トグル特性の駆動角θと押し荷重Ｐの関係グラフを示す    A graph showing the relationship between the driving angle θ and the pushing load P of the brake device toggle characteristic is shown.

符号の説明Explanation of symbols

１ 台車フレーム １ａ 台車ハンドル
２ 解除レバー ２ｂ レバー取付具
３ ワイヤーケーブル
５ ブレーキ板 ５ａ 右ブレーキ板 ５ｂ 左ブレーキ板
５ｃ 右ブレーキ駆動ピン ５ｄ 左ブレーキ駆動ピン
６ ブレーキ体
７ タイヤ
８ フレーム ８ａ フレーム側面板 ８ｂ フレーム側面板
９ ブレーキ板支点 ９ａ 右ブレーキ板支点 ９ｄ 左ブレーキ板支点1 Carriage frame 1a Carriage handle 2 Release lever 2b Lever fitting 3 Wire cable 5 Brake plate 5a Right brake plate 5b Left brake plate
5c Right brake drive pin 5d Left brake drive pin 6 Brake body 7 Tire 8 Frame 8a Frame side plate 8b Frame side plate 9 Brake plate fulcrum 9a Right brake plate fulcrum 9d Left brake plate fulcrum

１０ リンク回動軸 １０ａ ワイヤー駆動腕 １０ｂ 駆動ピン
１１ リンク腕 １１ａ 右リンク腕 １１ｂ 左リンク腕
１２ リンク駆動ピン １２ａ 右リンク駆動ピン １２ｂ 左リンク駆動ピン
１３ 遊動リンク １３ａ 右遊動リンク １３ｂ 左遊動リンク
１４ リンクストッパー軸
１５ 引きバネ
１６ ワイヤー １６ａ ワイヤー上端
１７ 駆動体DESCRIPTION OF SYMBOLS 10 Link rotation axis 10a Wire drive arm 10b Drive pin 11 Link arm 11a Right link arm 11b Left link arm 12 Link drive pin 12a Right link drive pin 12b Left link drive pin 13 Free link 13a Right free link 13b Left free link 14 Link Stopper shaft 15 Pull spring 16 Wire 16a Wire upper end 17 Driver

記号の説明Explanation of symbols

α 駆動体作用角度
θ 駆動体分割角度
δ 作用距離変位
Ｆａ バネが引く力
Ｆｂ ワイヤーが引く力
Ｘ 死点の一直線
Ｆ１と−Ｆ１ リンクが外側へ押す力
Ｆ２と−Ｆ２ タイヤ側へ押す力α Driving body working angle θ Driving body split angle δ Working distance displacement Fa Spring pulling force Fb Wire pulling force X Straight line of dead center F1 and -F1 Link pushing force F2 and -F2 Pushing to tire side

Claims (1)

図１１において、運搬台車フレーム底部の車輪ブレーキ装置の開閉部は、車輪タイヤにブレーキを掛けるブレーキ板がタイヤ両側にハの字状に回動可能に１対設けられ、ブレーキ板は板状であり、板状中央に両端を突出させ両端を側面板に支軸挿通して開閉のブレーキ支点とする、ブレーキ板上端の片側へ突出するブレーキ駆動ピンを設け、左右対象とし、対称形を成すブレーキ駆動ピンの両間を結ぶ線***に軸を貫通させ、同軸へ左右対称に延長腕を設け、両腕先端に突出するリンク回動ピンを設けリンク駆動体とする、ブレーキ板上端のブレーキ駆動ピンと、リンク回動ピンの両ピン間に各々リンク板を渡して連結し遊動リンク板とする、前記リンク駆動体の軸は一方を側面板外方へ延長し図１解除レバー２のワイヤーで引く駆動腕を固着し、同腕先端部に前記ワイヤーと引きバネを掛けるワイヤー駆動ピンを設ける、前期ブレーキ支点の側面板を通る延長部とワイヤー駆動ピン間にバネを掛け、前記ブレーキ駆動ピンの両間を結ぶ線が図１１線Ｘの一直線上に並ぶとき遊動リンクの一方をバネによる回動トルクを止めるピンを設ける、前記解除レバーがワイヤーを引くことにより前記リンク駆動体が回動されリンク回動ピンがリンク駆動ピンを内側に引きブレーキ板下端を開きブレーキを解除する、前記解除レバーの手を離すときバネ力が掛かり前記リンク駆動体を回動させＸ線一直線に成る方向へブレーキ駆動ピンが押し開いてブレーキ板下端によりタイヤを押し挟み制動する、開閉力は、図１５トグル特性グラフの詳細によるがα０〜θ１間の倍力された区間をタイヤの押す力に充当し、タイヤを離れ空間時は移動距離大側に充当する、該トグル特性により僅かなバネ力で大きな制動力を得ることが可能と成った、装置構成の主要部は、車輪タイヤ両側に開閉ブレーキ板のブレーキ駆動ピンとリンク駆動体軸と左右遊動リンクとが一直線を成すときタイヤを挟み大きい制動力を得ることを特徴とするトグル特性を応用したブレーキ開閉装置。  In FIG. 11, the opening and closing part of the wheel brake device at the bottom of the transport carriage frame is provided with a pair of brake plates that can apply brakes to the wheel tires so as to be able to rotate in a C shape on both sides of the tires, and the brake plates are plate-like. A brake drive pin that protrudes to one side of the upper end of the brake plate is provided with both ends projecting at the center of the plate and both ends are inserted into the side plate through the support shafts to open and close the brake plate. A brake drive pin at the upper end of the brake plate, penetrating the shaft in the center on the line connecting the two pins, providing an extension arm symmetrically to the same axis, and providing a link rotation pin protruding from the tip of both arms as a link drive body; A link arm is connected between both pins of the link rotation pin to form an idle link plate. One of the shafts of the link driving body extends outward from the side plate and is pulled by the wire of the release lever 2 in FIG. The Wear and provide a wire drive pin that hooks the wire and pulling spring at the tip of the arm, hook the spring between the wire drive pin and the extension passing through the side plate of the brake fulcrum, and connect the brake drive pin When the line is aligned on the straight line X in FIG. 11, a pin is provided to stop one of the floating links to stop the turning torque by the spring. When the release lever pulls the wire, the link driving body is turned and the link turning pin is Pull the link drive pin inward to open the lower end of the brake plate and release the brake. When releasing the release lever, a spring force is applied to rotate the link drive body and push the brake drive pin in the direction of X-ray alignment. Depending on the details of the toggle characteristic graph of FIG. 15, the opening / closing force is applied to the section of the tire that has been boosted between α0 and θ1. The main part of the device configuration is a wheel tire that can apply a large braking force with a slight spring force due to the toggle characteristics. A brake opening / closing device applying a toggle characteristic, characterized in that a large braking force is obtained by sandwiching a tire when a brake driving pin of an opening / closing brake plate, a link driving body shaft, and a left and right floating link form a straight line on both sides.

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