JP7182776B2 - Operating unit for load handling equipment - Google Patents

Operating unit for load handling equipment Download PDF

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JP7182776B2
JP7182776B2 JP2018189780A JP2018189780A JP7182776B2 JP 7182776 B2 JP7182776 B2 JP 7182776B2 JP 2018189780 A JP2018189780 A JP 2018189780A JP 2018189780 A JP2018189780 A JP 2018189780A JP 7182776 B2 JP7182776 B2 JP 7182776B2
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lever shaft
plate
unit
lever
load
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JP2020059561A (en
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公之 元田
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MOTODAGIKEN CO.,LTD.
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Description

本発明は、主として平行リンクを利用した関節型のアーム機構を、モータなどの駆動力によって伸縮、昇降、回転などの動作をさせ、前記アーム機構の先端部に形成した負荷部に支持させた荷物（荷重）を、前記負荷部が届く任意の位置に移動させるように形成された荷重取扱装置における前記アーム機構の負荷部に少なくとも昇降動作をさせる操作部をユニット化した荷重取扱装置の操作部ユニットに関する。 The present invention relates to an articulated arm mechanism mainly using parallel links, which is operated by a driving force such as a motor to extend, retract, lift, rotate, etc., and is supported by a load portion formed at the tip of the arm mechanism. An operation part unit of a load handling device formed so as to move a (load) to an arbitrary position reached by the load part, wherein an operation part for at least moving the load part of the arm mechanism up and down is unitized. Regarding.

従来から、パントグラフ状の平行リンクを利用した関節型のアーム機構を主体とする荷重取扱装置は、簡易なクレーンタイプの省力機械として多方面において広く活用されている。 2. Description of the Related Art Conventionally, a load handling device mainly composed of an articulated arm mechanism using pantograph-like parallel links has been widely used as a simple crane-type labor-saving machine.

前記荷重取扱装置では、アーム機構の先端側アームに設けた荷物を支持するフック等を備えた負荷部に隣接して前記アーム機構の動作（アームの伸縮等による負荷部の水平移動や昇降）を指示するための操作部を設けたものが多く、また、前記操作部には、オペレーター（操作員）がその掌で握ることができる操作レバーを備えた形式のものが多い。 In the load handling device, the operation of the arm mechanism (horizontal movement and elevation of the load portion due to expansion and contraction of the arm) is performed adjacent to the load portion provided with a hook or the like for supporting the load provided on the tip side arm of the arm mechanism. Many of them are provided with an operation part for giving instructions, and many of the above-mentioned operation parts are of a type provided with an operation lever that can be gripped by an operator (operator) with his/her palm.

前記操作部のよく知られている例としては、特許文献１～３等に開示された操作部がある。この操作部は、操作部本体をなす略立方体状の箱体（ボックス状本体）の外側壁面に、平面視略Ｔ状の操作レバーをその支持軸（レバー軸）において回転自在に設け、前記操作レバーを例えば時計回り方向に回転させると前記負荷部の上昇指令が生成され、前記操作レバーを反時計回り方向に回転させると前記負荷部の下降指令が生成されるように形成されており、前記先端側アームの先端とフック等による負荷部の間に連結部材の形で設けられている。 As well-known examples of the operation unit, there are operation units disclosed in Patent Documents 1 to 3 and the like. This operation part has an operation lever which is approximately T-shaped in plan view and is rotatably provided on the outer wall surface of a substantially cubic box body (box-shaped main body) forming the operation part main body about its support shaft (lever shaft). For example, when the lever is rotated clockwise, a command to raise the load portion is generated, and when the operating lever is rotated counterclockwise, a command to lower the load portion is generated. It is provided in the form of a connecting member between the tip of the tip side arm and a load portion such as a hook.

ところで、上記荷重取扱装置の操作部は、取扱う荷物の大きさがそれほど大きくない、例えば、取扱う荷物が１００ｋｇ重～２００ｋｇ重程度のいわば標準タイプの荷重取扱装置（以下、単に標準タイプともいう）では、先端側アームの先端と負荷部の間に設けられていることが、負荷部に支持させる荷物の上げ下ろしやその荷物を吊下げて平面内で移動させる等の操作をする上で便宜である。 By the way, the operation part of the load handling device is a standard type load handling device (hereinafter also simply referred to as a standard type) that handles a load that is not so large. The provision between the tip of the distal end side arm and the load section is convenient for operations such as lifting and lowering the load supported by the load section, suspending the load, and moving it within a plane.

しかし、取扱う荷物が、例えば５００ｋｇ重以上のいわば大荷重タイプの荷重取扱装置（以下、単に大荷重タイプともいう）になると、アーム機構も高強度で大型・大重量の構造になり、取扱う荷物も外形が大形・異形になる。取扱う荷物が大形や異形になると、負荷部にその荷物を支持（掴む、吊下げる等）させるとき、この負荷部に操作部が隣接していると、負荷部で支持している大形荷物や異形荷物が邪魔になって操作部の操作レバーがきわめて操作しにくいか、或は操作できない場合が生じていた。 However, if the cargo to be handled is, for example, a heavy load type load handling device with a weight of 500 kg or more (hereinafter also simply referred to as a heavy load type), the arm mechanism will also have a high strength, large size, and heavy weight structure, and the cargo to be handled will be large. The external shape becomes large and irregular. If the cargo to be handled becomes large or oddly shaped, when the load section is used to support (grab, hang, etc.) the load, if the operation section is adjacent to the load section, the large load supported by the load section may become unusable. Odd-shaped cargo interferes with the operation of the operation lever, making it extremely difficult or impossible to operate.

このようにアーム機構が大型になって取扱い荷物も大形や異形になる大荷重タイプの荷重取扱装置では、標準タイプの負荷部を、モータやシリンダ等の駆動力によって荷物の支持や開放を行うパワー負荷部に置き換え、このパワー負荷部の動作を制御する制御部をアーム機構の先端側アームの先端から適宜離間させて位置付け、この制御部をアタッチメント等の連結部材を介して前記パワー負荷部に結合した形で配置することが行われている。 In a large-load type load handling device in which the arm mechanism is large and the load to be handled is also large or irregularly shaped, the load part of the standard type is supported or released by the driving force of a motor, cylinder, or the like. A control section for controlling the operation of the power load section is positioned at an appropriate distance from the tip of the arm on the distal end side of the arm mechanism, and the control section is connected to the power load section via a connecting member such as an attachment. Arrangement in a combined form is practiced.

ところで、上述した標準タイプの荷重取扱装置における操作部は、アーム機構の先端側アームの先端と負荷部の間に配置されるボックス状本体に操作部の構成部材の全てが配置された形態である。一方、大荷重タイプの荷重取扱装置においては、パワー負荷部とこのパワー負荷部にアタッチメントを介して連結された制御部が設置されるため、荷物を支持するパワー負荷部を昇降させる操作部は、標準的タイプに用いているボックス状の操作部をそのまま転用することはできず、別製した操作部を前記制御部に付設していた。 By the way, the operating section in the above-described standard type load handling device has a form in which all the constituent members of the operating section are arranged in a box-shaped main body arranged between the tip of the tip side arm of the arm mechanism and the load section. . On the other hand, in a large-capacity type load handling device, a power load section and a control section connected to the power load section via an attachment are installed. The box-shaped operation unit used in the standard type could not be used as it was, and a separate operation unit was attached to the control unit.

特許第４２００３０４号公報Japanese Patent No. 4200304 特公平８－３６７号公報Japanese Patent Publication No. 8-367 実用新案第２５７８１４２号公報Utility Model No. 2578142

本発明では、標準タイプの荷重取扱装置のボックス状本体に組み込んで標準タイプ用の操作部に形成できると共に、大荷重タイプの荷重取扱装置のために別製されたパワー負荷部の制御部に付設されていた別体の操作部に代え前記制御部の筐体にそのまま組み込んで操作部を形成できる操作部ユニットを提供することを課題とする。 In the present invention, it can be incorporated into the box-shaped main body of a standard type load handling device to form a standard type operation section, and can be attached to the control section of the power load section separately manufactured for a large load type load handling device. It is an object of the present invention to provide an operation unit unit that can be incorporated in the housing of the control unit as it is to form an operation unit instead of the separate operation unit that has been used.

前記課題を解決することを目的としてなされた本発明操作部ユニットの構成は、操作レバーを一端に備えて前記操作レバーに直交したレバー軸と、前記レバー軸の軸受を備えそのレバー軸の他端側が前面から貫通して配置されるフランジ付プレートと、
前記フランジ付プレートの後ろで前記レバー軸に固定され前記レバー軸の正，逆回転の自己復帰機能を有するレバー軸の回転規制部と、前記回転規制部を挟む形で前記フランジ付きプレートの背面に被せられ前記レバー軸の先端側が軸受を介して貫通するフランジ付カバーと、前記フランジ付カバーの背面に設けられて前記レバー軸の回転が伝道されるポテンシヨメータとを備えることを特徴とする。
本発明操作部ユニットは、前記フランジ付プレートとフランジ付カバーの２つのフランジを重ねて一体化した重複フランジ部に、標準タイプの操作部を形成するボックス本体、及びパワー負荷部の制御部が備える正面パネルのいずれにもそのままネジ止めで取付けることが出来る取付部を形成したことを特徴とする。 The operation portion unit of the present invention, which has been made for the purpose of solving the above-mentioned problems, has a structure comprising a lever shaft having an operation lever at one end and perpendicular to the operation lever, and a bearing of the lever shaft having a bearing at the other end of the lever shaft. a flanged plate arranged side by side through the front;
a lever shaft rotation restricting portion fixed to the lever shaft behind the flanged plate and having a self-returning function of forward and reverse rotation of the lever shaft; It is characterized by comprising a cover with a flange on which the tip side of the lever shaft penetrates via a bearing, and a potentiometer provided on the rear surface of the cover with the flange and transmitting the rotation of the lever shaft.
The operating section unit of the present invention comprises a box body forming a standard type operating section on the overlapped flange section formed by stacking and integrating the two flanges of the flanged plate and the flanged cover, and a control section for the power load section. It is characterized by forming a mounting portion that can be mounted on any of the front panels as it is by screwing.

前記操作部ユニットにおけるレバー軸の回転規制部は、前記レバー軸に固着されたストッパ板と、該ストッパ板に立設された作動ピンと、前記レバー軸に取付けられ前記作動ピンで作動される捩りコイルバネと、前記捩りコイルバネの動作を規制する規制ピンを備えて形成されている。 The rotation restricting portion of the lever shaft in the operating portion unit includes a stopper plate fixed to the lever shaft, an operating pin erected on the stopper plate, and a torsion coil spring attached to the lever shaft and operated by the operating pin. and a regulating pin for regulating the operation of the torsion coil spring.

また、前記ポテンシヨメータに伝動されるレバー軸の回転は、前記レバー軸の先端部に設けた駆動ギアと、該駆動ギアに噛合されてポテンシヨメータのつまみ軸に設けた従動ギアによる伝動機構を介して伝動されるようにした。 Further, the rotation of the lever shaft transmitted to the potentiometer is a transmission mechanism using a driving gear provided at the tip of the lever shaft and a driven gear meshed with the driving gear and provided on the knob shaft of the potentiometer. It was made to be transmitted through.

本発明は、操作部ユニットの構成部材であるフランジ付プレートとフランジ付カバーの夫々のフランジを重ねて一体化した重複フランジ部に、標準タイプ用の操作部を形成するボックス状本体の開口部を有する側壁か、又は駆動力で荷物の支持と開放をするパワー負荷部の制御部を形成する筺体のフロントパネルのいずれかに、本発明操作部ユニットをネジ止して設置できる取付部を形成したから、一つの操作部ユニットを、標準タイプのボックス状本体に前記取付部においてネジ止で取付けるだけで操作部に形成することが出来ると共に、パワー負荷部の制御部を形成する筺体のフロントパネルに前記取付部においてネジ止で取付けるだけで別体操作部に形成することができる。 In the present invention, an opening of a box-shaped main body forming a standard type operation portion is provided in an overlapping flange portion formed by stacking and integrating flanges of a flanged plate and a flanged cover, which are constituent members of the operation portion unit. or the front panel of the housing that forms the control section of the power load section that supports and releases the cargo with the driving force. Therefore, one operating section unit can be formed in the operating section by simply attaching it to the standard type box-shaped main body with screws at the mounting section, and can be formed on the front panel of the housing forming the control section of the power load section. It is possible to form a separate operation section simply by screwing the attachment section.

本発明操作部ユニットの一例の縦断側面図。FIG. 2 is a longitudinal side view of an example of the operating portion unit of the present invention; 図１の操作部ユニットの左側面図。FIG. 2 is a left side view of the operation section unit in FIG. 1; 図１の操作部ユニットの右側面図。FIG. 2 is a right side view of the operation section unit in FIG. 1; 回転規制部のストップ板の正面図。FIG. 4 is a front view of a stop plate of the rotation restricting portion; 本発明操作部ユニットの分解斜視図。FIG. 2 is an exploded perspective view of the operating portion unit of the present invention; 本発明操作部ユニットを標準タイプの荷重取扱装置の操作部に適用した例の斜視図。FIG. 10 is a perspective view of an example in which the operating section unit of the present invention is applied to the operating section of a standard type load handling device; 本発明操作部ユニットをアーム機構の先端側アームから離れて設けた別体操作部に適用した例の斜視図。FIG. 10 is a perspective view of an example in which the operating section unit of the present invention is applied to a separate operating section provided apart from the distal arm of the arm mechanism;

次に、本発明操作部ユニットの実施の形態例について、図を参照しながら説明する。 Next, an embodiment of the operating section unit of the present invention will be described with reference to the drawings.

図１～図７において、１は、横向きの操作レバー２を備え、前記操作レバー２と直交した向きのレバー軸である。前記レバー軸１は、重量軽減のため中空パイプ状に形成されており、前記操作レバー２を結合した側がテーパー部１ａに形成され、該テーパー部１ａの反対側は、段部１ｂを介して段付部１ｃに形成されている。３は前記レバー軸１と操作レバー２の結合ピンである。前記操作レバー２は、その全長の略１／３程度の位置でレバー軸１に前記結合ピン３を介して結合され、前記レバー軸１と操作レバー２が平面視略Ｔ状をなすように結合されている。 In FIGS. 1 to 7, reference numeral 1 denotes a lever shaft which has a horizontal operating lever 2 and which is perpendicular to the operating lever 2. As shown in FIG. The lever shaft 1 is formed in the shape of a hollow pipe for weight reduction. It is formed in the attached portion 1c. 3 is a connecting pin for connecting the lever shaft 1 and the operating lever 2 . The operating lever 2 is connected to the lever shaft 1 via the connecting pin 3 at a position about 1/3 of the total length of the operating lever 2, and the lever shaft 1 and the operating lever 2 are connected so as to form a substantially T shape in plan view. It is

前記レバー軸１の段部１ｂを含む段付部１ｃの太径部位には、軸受４を介してフランジ付きプレート５が装着されている。フランジ付プレート５は、前記軸受４が中心に位置する中心側のプレート部５ａと該プレート部５ａの外周側のフランジ部５ｂを備えている。５ｃは前記軸受４をプレート部５ａに固定するための結合ピンである。 A flanged plate 5 is attached via a bearing 4 to the large-diameter portion of the stepped portion 1c of the lever shaft 1 including the stepped portion 1b. The flanged plate 5 has a central plate portion 5a on which the bearing 4 is positioned at the center and a flange portion 5b on the outer peripheral side of the plate portion 5a. 5c is a connecting pin for fixing the bearing 4 to the plate portion 5a.

６は、前記フランジ付プレート５の背面側（操作レバー２とは反対側）において、そのフランジ付プレート５に背面側から被せたフランジ付カバーである。そのフランジ付カバー６は、その中心に、前記レバー軸１の段付部１ｃの小径部位１ｇを支承する軸受７を有するカバー本体部６ａと、そのカバー本体部６ａの外周側に配されたフランジ部６ｂを備える。 Reference numeral 6 denotes a flanged cover that covers the flanged plate 5 from the rear side thereof on the rear side of the flanged plate 5 (the side opposite to the operation lever 2). The flanged cover 6 includes a cover main body 6a having a bearing 7 at its center for supporting the small diameter portion 1g of the stepped portion 1c of the lever shaft 1, and a flange provided on the outer peripheral side of the cover main body 6a. A portion 6b is provided.

前記フランジ付プレート５のフランジ部５ｂ（以下、第１フランジ部５ｂともいう）と、前記フランジ付カバー６のフランジ部６ｂ（以下、第２フランジ部６ｂともいう）とは、略同じ外径で略同じ幅に形成され、ここでは周上１２０度ピッチの３本の結合ネジ８によって結合されている。９は、前記第１フランジ５ｂと第２フランジ６ｂを重ねて結合する前記の各結ネジ８の中間に、略１２０度ピッチで前記第１フランジ５ｂと第２フランジ６ｂを貫通して設けた取付部になる取付穴である。 The flange portion 5b of the flanged plate 5 (hereinafter also referred to as the first flange portion 5b) and the flange portion 6b of the flanged cover 6 (hereinafter also referred to as the second flange portion 6b) have substantially the same outer diameter. They are formed to have substantially the same width and are connected here by three connecting screws 8 with a pitch of 120 degrees on the circumference. Reference numeral 9 denotes an attachment provided through the first flange 5b and the second flange 6b at a pitch of approximately 120 degrees between each of the connection screws 8 that overlap and join the first flange 5b and the second flange 6b. It is a mounting hole that becomes a part.

第１フランジ部５ｂと第２フランジ部６ｂが３本の結合ネジ８によって重複状態で結合されたフランジ付プレート５とフランジ付カバー６において対面するプレート部５ａとカバー本体部６ａが形成する空間内には、前記レバー軸１の段付部１ｃにおける大径部分が位置付けられ、前記操作レバー２（レバー軸１）の回転規制部ＣＬが前記段付部１ｃに装備されている。次に、回転規制部ＣＬについて説明する。 In the space formed by the plate portion 5a and the cover body portion 6a facing each other in the flanged plate 5 and the flanged cover 6, in which the first flange portion 5b and the second flange portion 6b are joined in an overlapping state by three coupling screws 8. A large-diameter portion of the stepped portion 1c of the lever shaft 1 is positioned at , and a rotation restricting portion CL of the operating lever 2 (lever shaft 1) is provided on the stepped portion 1c. Next, the rotation restricting portion CL will be described.

回転規制部ＣＬは、レバー軸１の段付部１ｃの大径部位に取付けられたストッパ板１０と、ストッパ板１０の角回転を止めるストッパピン１１と、前記レバー軸１に装着されて正方向又は逆方向に回転されるレバー軸１を元の位置に復帰させる力を当該レバー軸１に伝える捩りコイルバネ１２と、前記捩りコイルバネ１２のバネ力を支持するバネピン１３と、前記捩りコイルバネ１２をストッパ板１０に押付けるバネ押え１４を備えている（図４参照）。なお、図４の斜視図に示された回転規制部ＣＬは、図１の断面図に示した回転規制部ＣＬの上下方向の向きと、上，下が逆になっている。 The rotation restricting portion CL includes a stopper plate 10 attached to the large-diameter portion of the stepped portion 1c of the lever shaft 1, a stopper pin 11 for stopping the angular rotation of the stopper plate 10, and the lever shaft 1 mounted to rotate in the forward direction. Alternatively, a torsion coil spring 12 that transmits a force for returning the lever shaft 1 rotated in the opposite direction to its original position to the lever shaft 1, a spring pin 13 that supports the spring force of the torsion coil spring 12, and the torsion coil spring 12 as a stopper. A spring retainer 14 is provided to press against the plate 10 (see FIG. 4). The rotation restricting portion CL shown in the perspective view of FIG. 4 is upside down with respect to the vertical direction of the rotation restricting portion CL shown in the sectional view of FIG.

回転規制部ＣＬのストッパ板１０は、図４に正断面の姿を示した。ストッパ板１０は、正面から見た略矩形の基板１０ａがレバー軸１の段付部１ｃのキー溝１ｄにキー１０ｂによって固定されてレバー軸１と一体化されている。１０ｃはキー１０ｂの押えネジである。図４に示したストッパ板１０の下辺は、レバー軸１を中心とする略円弧凹状のガイド溝１０ｄに形成され、このガイド溝１０ｄに入る位置にストッパピン１１がフランジ付プレート５のプレート部５ａに立設されている。レバー軸１と一体に回転するストッパ板１０は、そのガイド溝１０ｄの両端部１０ｅ、１０ｆがストッパピン１１に当るまで、正方向と逆方向に回転可能である。 The stopper plate 10 of the rotation restricting portion CL is shown in front cross section in FIG. The stopper plate 10 is integrated with the lever shaft 1 by fixing a substantially rectangular substrate 10a viewed from the front to a key groove 1d of a stepped portion 1c of the lever shaft 1 with a key 10b. 10c is a press screw for the key 10b. The lower side of the stopper plate 10 shown in FIG. 4 is formed in a guide groove 10d having a generally arcuate concave shape centered on the lever shaft 1, and the stopper pin 11 is inserted into the plate portion 5a of the flanged plate 5 at the position where the guide groove 10d is inserted. is set up in A stopper plate 10 that rotates integrally with the lever shaft 1 can rotate in forward and reverse directions until both ends 10e and 10f of the guide groove 10d hit the stopper pin 11. As shown in FIG.

捩りコイルバネ１２は、そのバネの両端側が脚のような姿でリング状になった捩り部の外側に突出している。以下、突出している部分を脚状突出部１２ａと呼ぶ。捩りコイルバネ１２は、そのリング状部がレバー軸１の段付部１ｃに外嵌されており、２本の脚状突出部１２ａの間に、前記ストッパ板１０に形成されたガイド溝１０ｄの長さ方向中間部の縁に立設したバネピン１３が挟まれた形で位置するようになっている。 Both ends of the torsion coil spring 12 protrude outside the ring-shaped torsion portion in the form of legs. The protruding portion is hereinafter referred to as a leg-shaped protruding portion 12a. A ring-shaped portion of the torsion coil spring 12 is fitted onto the stepped portion 1c of the lever shaft 1, and the length of the guide groove 10d formed in the stopper plate 10 is between the two leg-shaped protrusions 12a. A spring pin 13 erected on the edge of the middle portion in the width direction is sandwiched between them.

１４は、前記捩りコイルバネ１２をストッパ板１０の側へ押付けるバネ押えであり、大略円弧状のカバー体がストッパ板１０にネジ１４ａで止められるように形成されている。 Reference numeral 14 denotes a spring retainer for pressing the torsion coil spring 12 toward the stopper plate 10, and is formed such that a substantially arcuate cover body is fixed to the stopper plate 10 with screws 14a.

以上によりレバー軸１（操作レバー２）の回転規制部ＣＬを構成するが、その機能は次の通りである。いま操作レバー２を手で掴み、レバー軸１を図２の時計回り方向に回転させると、その回転は、ストッパ板１０のガイド溝１０ｄの右端（図４では符号１０ｅ）がストッパピン１１に当接するまで許容され、それ以上の時計回り方向の回転はできない。 The rotation restricting portion CL of the lever shaft 1 (operating lever 2) is configured as described above, and its function is as follows. Now, when the operating lever 2 is grasped by hand and the lever shaft 1 is rotated clockwise in FIG. It is allowed until it touches, and no further clockwise rotation is possible.

上記の回転中に、レバー軸１に装設している捩りコイルバネ１２は、その脚状突出部１２ａがバネピン１３によってレバー軸１の回転方向に押されて捩りコイルバネ１２を捩って戻り力を与える。捩りによってコイルバネ１２に与えられた戻り力は、そのコイルバネ１２の弾性によって操作レバー２から手を放すとレバー軸１を元の位置に戻す復帰力として作用する。 During the above rotation, the torsion coil spring 12 mounted on the lever shaft 1 has its leg-shaped projecting portion 12a pushed by the spring pin 13 in the rotation direction of the lever shaft 1, twisting the torsion coil spring 12 and exerting a return force. give. The return force applied to the coil spring 12 by twisting acts as a return force for returning the lever shaft 1 to its original position when the operating lever 2 is released due to the elasticity of the coil spring 12 .

前記レバー軸１の反時計回り方向においても、その回転がガイド溝１０ｄの左端（図４参照）がストッパピン１１に当接するまで許容される。この回転に伴いバネピン１３が捩りコイルバネ１２の脚状突出部１２ａを捩り方向に押して軸１は自動復帰する。 Rotation of the lever shaft 1 in the counterclockwise direction is also permitted until the left end of the guide groove 10d (see FIG. 4) contacts the stopper pin 11. As shown in FIG. With this rotation, the spring pin 13 pushes the leg-like projection 12a of the torsion coil spring 12 in the twisting direction, and the shaft 1 automatically returns.

１５は、フランジ付きカバー６の背面に、取付台１６と取付スペーサ１７を介して取付けたロータリー型のポテンシヨメータである。取付台１６は取付スペーサ17を備えており、ポテンシヨメータ１５が取付ビス１７ａにより取付台１６に取付けられている。１６ａは前記取付台１６をフランジ付カバー６の背面に取り付けるための取付ビスである。前記ポテンシヨメータは、回転角に正確に対応した電気値（抵抗値又は電圧値）を出力するから、その回転のために先に述べたレバー軸１の回転を伝えるための伝動機構を備えている。 A rotary potentiometer 15 is attached to the rear surface of the flanged cover 6 via a mounting base 16 and a mounting spacer 17 . The mounting base 16 has mounting spacers 17, and the potentiometer 15 is attached to the mounting base 16 with mounting screws 17a. Reference numeral 16a denotes a mounting screw for mounting the mounting base 16 on the rear surface of the flanged cover 6. As shown in FIG. Since the potentiometer outputs an electric value (resistance value or voltage value) that accurately corresponds to the rotation angle, it is equipped with a transmission mechanism for transmitting the rotation of the lever shaft 1 described above. there is

伝動機構は、前記ポテンシヨメータ１５のつまみ軸１５ａに取付ビス１５ｃによって取付けたピニオンギア１５ｂ（従動ギア）と、前記ピニオンギア１５ｂに噛合う大径のギアであって前記レバー軸１の末端部（段付部１ｃにおける小径部位１ｇ）に取り付けネジ１５により取付けられた駆動ギア１ｅとにより形成されている。この伝動機構により、操作レバー２を手で掴みレバー軸１を時計回り方向又は反時計回り方向に、回転規制部ＣＬで許容される範囲内で正，逆の角回転をさせると、その回転が駆動ギア１ｅを通してピニオンギア１５ｂに伝わり、ポテンシヨメータ１５のツマミ軸１５ａを、時計回り方向又は反時計回り方向に回転させる。 The transmission mechanism consists of a pinion gear 15b (driven gear) attached to the knob shaft 15a of the potentiometer 15 by means of a mounting screw 15c, and a large-diameter gear meshing with the pinion gear 15b. (small-diameter portion 1g of stepped portion 1c) and driving gear 1e attached by mounting screw 15. As shown in FIG. With this transmission mechanism, when the operating lever 2 is gripped by hand and the lever shaft 1 is rotated clockwise or counterclockwise within the range permitted by the rotation restricting portion CL, the rotation is regulated. It is transmitted to the pinion gear 15b through the drive gear 1e and rotates the knob shaft 15a of the potentiometer 15 clockwise or counterclockwise.

ここで、ポテンシヨメータ１５のつまみ軸１５ａの時計回り方向の角回転と反時計回り方向の角回転によって得られた電気信号は、前記ポテンシヨメータ１５が接続されるサーボモータ（図示しないが荷重取扱装置の持上げ駆動源）の制御回路に対し、前記サーボモータの回転方向（吊下げている荷物の上昇方向と降下方向）と各回転方向での回転数（荷物の上昇と下降の速度）を制御するための信号として利用される。１８はポテンシヨメータ１５の３つの端子に接続されたリード線を備えた電気カプラーである。 Here, the electric signals obtained by the clockwise angular rotation and the counterclockwise angular rotation of the knob shaft 15a of the potentiometer 15 are applied to a servo motor (not shown in the drawing) to which the potentiometer 15 is connected (loaded, not shown). The rotation direction of the servo motor (lifting direction and descent direction of the suspended load) and the number of revolutions in each rotation direction (lifting and descent speed of the load) are set for the control circuit of the lifting drive source of the handling equipment). It is used as a signal for control. 18 is an electric coupler with lead wires connected to three terminals of the potentiometer 15 .

以上に説明した操作レバー２を備えるレバー軸１から取付台１６、取付スペーサ１７を介して設けたポテンシヨメータ１５までの構成によって、操作部Ｃをユニット化した本発明操作部ユニットＣＵの一例を形成するので、次に本発明操作部ユニットＣＵの適用例について説明する。 An example of the operation portion unit CU of the present invention, in which the operation portion C is unitized by the configuration from the lever shaft 1 having the operation lever 2 to the potentiometer 15 provided via the mounting base 16 and the mounting spacer 17 described above, will be described. Next, an application example of the operating unit unit CU of the present invention will be described.

先に述べたフランジ付プレート５とフランジ付カバー６において、結合ビス８によって結合一体化された２つのフランジ部５ｂと６ｂには一体化した２つのフランジ部５ｂと６ｂを貫通する取付穴９が、図示した例では周上に３個設けられている。前記取付穴９は、３個以上であってもよい。取付穴９は、本発明操作部ユニットＣＵを、図６に例示するパントグラフ型アーム機構によるクレーン型の荷重取扱装置Ｂａの先端側アームＡ１の下端部に配置される負荷部Ｌと一体をなす操作部Ｃのボックス状本体Ｂｍの側壁Ｗｓに取付ける際の取付部として機能する。Ｆは荷物吊下げ用のフックである。 In the flanged plate 5 and the flanged cover 6 described above, the two flanges 5b and 6b that are integrated by the coupling screws 8 are provided with mounting holes 9 penetrating the two integrated flanges 5b and 6b. , and in the illustrated example, three are provided on the circumference. The number of the mounting holes 9 may be three or more. The mounting hole 9 integrates the operating portion unit CU of the present invention with the load portion L arranged at the lower end portion of the distal end side arm A1 of the crane-type load handling device Ba by the pantograph-type arm mechanism illustrated in FIG. It functions as an attachment portion when attaching to the side wall Ws of the box-shaped main body Bm of the operation portion C. As shown in FIG. F is a hook for hanging luggage.

すなわち、前記ボックス状本体Ｂｍの側壁Ｗｓに、フランジ付カバー６のカバー本体６ａより僅かに大きい装着穴（図示せず）を形成すると共に、前記取付穴９と対応する位置に側壁ネジ穴（図示せず）を形成しておき、側壁Ｗｓの前記装着穴に、本発明操作部ユニットＣＵを、ポテンシヨメータ１５の側から差し入れ、２つの一体化したフランジ部５ｂ，６ｂの取付穴９と前記側壁ネジ穴に、取付用ネジ（図示せず）を締め込むことにより、本発明操作部ユニットＣＵを前記操作部Ｃのボックス状本体Ｂｍに取り付けることができる。 That is, a mounting hole (not shown) slightly larger than the cover body 6a of the flanged cover 6 is formed in the side wall Ws of the box-shaped main body Bm, and a side wall screw hole ( (not shown) are formed in advance, and the operating unit unit CU of the present invention is inserted into the mounting hole of the side wall Ws from the potentiometer 15 side, and the mounting holes 9 of the two integrated flange portions 5b and 6b and the mounting holes 9 of the flange portions 5b and 6b are mounted. The operating section unit CU of the present invention can be attached to the box-shaped main body Bm of the operating section C by tightening mounting screws (not shown) into the side wall screw holes.

先端側アームＡ１の下端部に配置される負荷部Ｌと一体に、ボックス状本体Ｂｍの操作部Ｃに本発明操作部ユニットＣＵが設けられると、負荷部ＬのフックＦに荷物を吊下げて持上げるとき、操作者は利き手で操作レバー２を握り、他方の手を荷物に添えて当該荷物の昇降をさせるという操作を、至って自然体の姿勢で行うことができる。 When the operation portion unit CU of the present invention is provided in the operation portion C of the box-shaped main body Bm integrally with the load portion L arranged at the lower end of the distal end side arm A1, the hook F of the load portion L suspends a load. When lifting, the operator can hold the operating lever 2 with his/her dominant hand and raise/lower the load with the other hand in a very natural posture.

一方、取扱う荷物が大形や異形であると、その荷物を前記フックＦに吊下げたとき、荷物の外形が操作レバー２の操作を邪魔して円滑な荷物の昇降操作が行い難いといった問題がある。
このため大形荷物用の荷重取扱装置Ｂａにおいては、負荷部Ｌの操作部ＣとフックＦに代えて、エアシリンダ等のアクチュエータを駆動源とする大形の掴み装置やチャック装置によるパワー負荷部ＰＬを形成している。しかし標準タイプの操作部ＣやフックＦに代えてパワー負荷部ＰＬを採用すると、パワー負荷部ＰＬの操作や制御のための制御部Ｃｐが必要であると共に前記パワー負荷部ＰＬを昇降させるための操作部Ｃをどこに設けるかが課題となる。 On the other hand, if the load to be handled is large or odd-shaped, when the load is hung on the hook F, the outer shape of the load interferes with the operation of the operating lever 2, making it difficult to smoothly lift and lower the load. be.
For this reason, in the load handling device Ba for large cargo, instead of the operating portion C and the hook F of the load portion L, a large gripping device or a chucking device driven by an actuator such as an air cylinder is used as a power load portion. form a PL. However, if the power load section PL is adopted in place of the standard type operating section C and hook F, a control section Cp for operating and controlling the power load section PL is required, and at the same time, the power load section PL is required to move up and down. The problem is where to provide the operation unit C.

そこで本発明では、操作レバー２とポテンシヨメータ１５をフランジ付プレート５とフランジ付カバー６を介して一体化した形態の操作部ユニットＣＵを、前記パワー負荷部ＰＬに隣接又は離間して設けられる制御部Ｃｐの本体が収容された制御ボックス（筐体）ＢｃのフロントパネルＰｆに取付けて別体操作部Ｃａを形成し前記課題を解決した。 Therefore, in the present invention, an operating section unit CU in which the operating lever 2 and the potentiometer 15 are integrated via a flanged plate 5 and a flanged cover 6 is provided adjacent to or spaced from the power load section PL. The above problem is solved by forming a separate operation unit Ca by attaching it to the front panel Pf of the control box (housing) Bc in which the main body of the control unit Cp is housed.

図７は、先端側アームＡ１の下端部に、大型荷物を支持させるために一例としてエアシリンダ式のチャック装置をパワー負荷部ＰＬとして設け、そのパワー負荷部ＰＬの動作を制御する制御部Ｃｐを、前記パワー負荷部ＰＬに結合した連結アタッチメントＡｔを介して設けた例である。ここでは、制御部本体が納められた筐体ＢｃのフロントパネルＰｆに形成した取付穴に本発明操作部ユニットＣＵを後部（ポテンシヨメータ１５の側）から入れ、取付穴９に入れた取付ネジを前記フロントパネルＰｆに締め込んで筐体Ｂｃに取付け別体操作部Ｃａを形成している。図７において、Ｃｈは掴みチャック、Ａｉは掴みチャックＣｈの駆動源たるエアシリンダ、Ｂｕは制御部Ｃｐのスイッチを含む操作ボタンである。 In FIG. 7, an air cylinder type chucking device is provided as a power load section PL as an example to support a large load at the lower end of the tip side arm A1, and a control section Cp for controlling the operation of the power load section PL is provided. , is provided via a connecting attachment At coupled to the power load section PL. Here, the operation section unit CU of the present invention is inserted from the rear (potentiometer 15 side) into the mounting hole formed in the front panel Pf of the housing Bc in which the control section main body is housed, and the mounting screw inserted into the mounting hole 9 is attached to the front panel Pf to form a separate operating portion Ca attached to the housing Bc. In FIG. 7, Ch is a gripping chuck, Ai is an air cylinder as a driving source of the gripping chuck Ch, and Bu is an operation button including a switch of the control part Cp.

操作員は、前記制御部Ｃｐの筐体ＢｃのフロントパネルＰｆに配置されたパワー負荷部ＰＬを作動させるためのスイッチやツマミ等の操作ボタンＢｕを操作して前記パワー負荷部ＰＬに大型荷物を掴ませたり放したりする動作をさせると共に、同じフロントパネルＰｆに形成した別体操作部Ｃａにおける本発明操作部ユニットＣＵの操作レバー２を回転操作することによって、前記パワー負荷部ＰＬの掴みチャックＣｈに掴ませた大形荷物の昇降動作を行う。 An operator operates an operation button Bu such as a switch or knob for activating the power load section PL arranged on the front panel Pf of the housing Bc of the control section Cp to load a large load onto the power load section PL. The grasping chuck Ch of the power load section PL is operated by rotating the operating lever 2 of the operating section unit CU of the present invention in the separate operating section Ca formed on the same front panel Pf as well as performing a gripping and releasing operation. Perform the lifting operation of the large luggage that is held by the

本発明は以上の通りであって、標準タイプの操作部のボックス状本体の側壁か、又は別製の筺体に配置されるパワー負荷部の制御部のフロントパネルのいずれにも本発明制御部ユニットを取付けることが出来るから、一種類の操作部ユニットで標準タイプの操作部に適用できることは勿論、様々な形態のパワー負荷部ゆえにそれらの制御部も区々の形態となるため、制御部に設置される操作部もその都度別製されていた大荷重タイプ用の別体操作部を、一種類の本発明操作部ユニットを用いて形成することができる。 The present invention is as described above, and the control section unit of the present invention can be mounted either on the side wall of the box-shaped main body of the standard type operation section or on the front panel of the control section of the power load section arranged in a separate housing. Since it can be attached, one type of operation unit can be applied to the standard type operation unit, and the power load units of various forms also have different control units, so they can be installed in the control unit. It is possible to form a separate operating portion for a large load type, which has been manufactured separately each time, by using one type of the operating portion unit of the present invention.

１ レバー軸
２ 操作レバー
３ 取付ピン
４ 軸受
５ フランジ付プレート
６ フランジ付カバー
７ 軸受
８ 結合ビス（ネジ）
９ 取付穴
ＣＬ 回転規制部
１０ ストッパ板
１１ ストッパピン
１２ 捩りコイルバネ
１３ バネピン
１４ バネ押え
１５ ポテンシヨメータ
１６ 取付台
１７ 取付スペーサ
１８ 電気コネクタ
Ｂａ 荷役取扱装置
Ａ１ 先端側アーム
Ｌ 負荷部
Ｃ 操作部
Ｂｍ ボックス状本体
Ｗｓ 側壁
Ｆ フック
Ｃａ 別体操作部
ＰＬ パワー負荷部
Ｃｐ パワー負荷部の制御部
Ｂｃ 制御部の筐体
Ｐｆ 筐体のフロンパネル
1 Lever shaft 2 Operation lever 3 Mounting pin 4 Bearing 5 Plate with flange 6 Cover with flange 7 Bearing 8 Connection screw (screw)
9 Mounting hole CL Rotation restricting portion 10 Stopper plate 11 Stopper pin 12 Torsion coil spring 13 Spring pin 14 Spring retainer 15 Potentiometer 16 Mounting base 17 Mounting spacer 18 Electrical connector Ba Cargo handling device A1 Front end arm L Load section C Operation section Bm Box Main body Ws Side wall F Hook Ca Separate operation unit PL Power load unit Cp Power load unit control unit Bc Control unit housing Pf Housing front panel

Claims (3)

操作レバーと、前記操作レバーに直交したレバー軸と、前記レバー軸を前面から貫通させたプレートと、前記プレートの背面側において前記レバー軸の正、逆回転に対し自己復帰作用をさせる回転規制部、及び前記レバー軸の回転が伝動されるポテンショメータを備える荷重取扱装置の操作部において、
前記プレートをフランジ付プレートに形成し、前記フランジ付プレートの背面に、前記回転規制部を挟んで前記レバー軸の先端側が貫通するフランジ付カバーを被せ、前記フランジ付プレートとフランジ付カバーのフランジ同士を重ねて一体化し、一体化した前記フランジ付カバーの背面に前記ポテンショメータを取付け、さらに一体化した前記フランジにネジ穴による取付部を設けて操作部ユニットに形成すると共に、前記操作部ユニットは、一体化したフランジに設けた取付部の前記ネジ穴において、標準タイプの荷重取扱装置の操作部を形成するボックス状本体にネジ止めして用いるか、又は重量タイプの荷重取扱装置のパワー負荷部の制御部が備える筐体のパネルに、前記取付部のネジ穴においてネジ止めして用いることを特徴とする荷重取扱装置の操作部。 An operation lever, a lever shaft orthogonal to the operation lever, a plate through which the lever shaft passes from the front surface, and a rotation restricting portion that performs a self-returning action on the forward and reverse rotation of the lever shaft on the back side of the plate. , and an operating portion of a load handling device comprising a potentiometer to which the rotation of the lever shaft is transmitted,
The plate is formed as a flanged plate, and a flanged cover through which the tip end side of the lever shaft penetrates with the rotation restricting portion in between is placed on the rear surface of the flanged plate, and the flanges of the flanged plate and the flanged cover are covered with each other. are stacked and integrated, the potentiometer is attached to the back surface of the integrated flanged cover, and the integrated flange is provided with a mounting portion by a screw hole to form an operation portion unit, and the operation portion unit is In the screw holes of the mounting part provided in the integrated flange, it is used by screwing it to the box-shaped body forming the operation part of the standard type load handling device, or the power loading part of the heavy type load handling device. An operation unit of a load handling device, which is used by being screwed to a panel of a housing provided in the control unit through the screw holes of the mounting unit. 前記操作部ユニットにおいて一体化された前記フランジ付プレートとフランジ付カバーの間に配置された前記回転規制部は、前記レバー軸に固着されたストッパ板と、該ストッパ板に立設されたバネピンと、前記レバー軸に取付けられ前記バネピンで捩り作用を受ける捩りコイルバネと、前記ストッパ板の回転を規制するストッパピンを備えて形成されている請求項１に記載の荷重取扱装置の操作部。 The rotation restricting portion disposed between the integrated flanged plate and the flanged cover in the operating portion unit includes a stopper plate fixed to the lever shaft and a spring pin erected on the stopper plate. 2. The operating portion of the load handling device according to claim 1, further comprising a torsion coil spring attached to said lever shaft and subjected to a twisting action by said spring pin, and a stopper pin for restricting rotation of said stopper plate. 前記操作部ユニットにおいてポテンショメータに伝動される前記レバー軸の回転は、前記レバー軸の先端部に設けた駆動ギアと、該駆動ギアに噛合されて前記ポテンショメータのツマミ軸に設けた従動ギアによる伝動機構を介して伝動される請求項１又は２に記載の荷重取扱装置の操作部。

Rotation of the lever shaft, which is transmitted to the potentiometer in the operation unit, is a transmission mechanism using a driving gear provided at the tip of the lever shaft and a driven gear meshed with the driving gear and provided on the knob shaft of the potentiometer. 3. The operating portion of a load handling device according to claim 1 or 2, wherein the operating portion is transmitted through the .
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