JP2004269146A - Lift control device of lifter - Google Patents

Lift control device of lifter Download PDF

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Publication number
JP2004269146A
JP2004269146A JP2003061554A JP2003061554A JP2004269146A JP 2004269146 A JP2004269146 A JP 2004269146A JP 2003061554 A JP2003061554 A JP 2003061554A JP 2003061554 A JP2003061554 A JP 2003061554A JP 2004269146 A JP2004269146 A JP 2004269146A
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JP
Japan
Prior art keywords
lift
lift fork
lifter
fork
lower limit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP2003061554A
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Japanese (ja)
Inventor
Kazuyoshi Kawamoto
和義 川本
Kinji Okita
欣治 沖田
Hirokazu Sakai
裕和 酒井
Yoshiaki Murata
佳明 村田
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Atex Co Ltd
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Atex Co Ltd
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Filing date
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Priority to JP2003061554A priority Critical patent/JP2004269146A/en
Publication of JP2004269146A publication Critical patent/JP2004269146A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lift control device for a lifter to scoop a grain sack on a gauge table using its lift fork and transporting, capable of being manipulated easily, as improvement of a conventional arrangement involving such problems wherein a lift fork inserting gap should be formed between the load placing surface and the sack bottom surface, a supply hole provided in a selecting machine etc. to exhaust and supply grains is located on the sack received on the gauge table in such a way as confronting in proximity, and if in this condition, the sack is lifted by the lifter, the mouth of the sack hitches at the supply hole of the selecting machine etc. to make difficult for the sack to be taken out to the outside and transported etc. smoothly, and wherein a control should be made for the lift fork not to make excessive rise or shortage of the rise. <P>SOLUTION: The lift control device of the lifter is configured so that the lift fork 2 capable of being lifted and sunk with respect to a dolly frame 1 can lift from its lower limit position A to the scooping position B on the load placing surface in such a way as capable of being stopped automatically. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、リフターの昇降制御装置に関し、穀粒袋等の重量物を荷物載置面から掬い上げて移送、乃至運搬するものである。
【0002】
【従来の技術】
計量袋詰される穀粒袋を袋載せ台上面に搭載して一定高さに上昇させて袋口閉じ等の作業を行うと共に、穀粒袋を搬出する作業が自然体で行うことのできる高さまで上昇させるリフターの技術が知られている(例えば特許文献1参照)。
【特許文献1】実開平6−35297号公報(第1頁、図1)
【0003】
【発明が解決しようとする課題】
計量器の計量台上の穀粒袋をリフターのリフトフォークで掬い上げて袋口閉め作業や運搬作業する場合には、リフトフォークを下限位置で荷物載置面とこの上面の穀粒袋底面との間に差込むために、これらの間にこのリフトフォークの差込間隔を形成する必要がある。しかも、この計量台上に受けられた穀粒袋の袋口上には、選別機等の穀粒を排出供給する供給口が接近してのぞまされる状態にある。このような状態で穀粒袋がリフターで上昇されると、この穀粒袋の袋口部が選別機等の供給口に引っ掛って、続いて穀粒袋が計量台上から外方への取出、乃至運搬等が円滑に行われ難い。このような場合は、リフトフォークの上り過ぎや上り不足がないように制御されることが必要で、操作が微妙で熟練を要する。
【0004】
【課題を解決するための手段】
請求項1に記載の発明は、台車フレーム1に対して昇降駆動可能のリフトフォーク2を、下限位置Aから荷物載置面上の掬取位置Bに上昇させて自動停止可能に設けたことを特徴とするリフターの昇降制御装置の構成とする。台車フレーム1に対してリフトフォーク2を下限位置Aに下降させた状態で、このリフトフォーク2を荷物載置面とこの上面の荷物との間に差込み、このリフトフォーク2を僅かに上昇させて荷物載置面上の掬取位置Bに掬い上げる。リフトフォーク2はこの掬取位置Bに上昇されると自動的に停止される。この状態で台車フレーム1を前後等へ移動して荷物をリフトフォーク2に載せた状態で運搬することができる。
【0005】
請求項2に記載の発明は、前記リフトフォーク2の下限位置A及び掬取位置Bの高さを調節可能に設けたことを特徴とするものである。リフターで荷物を掬い上げるときは、下限位置Aのリフトフォーク2の下降位置を荷物載置面乃至これよりも若干低い位置に合せる。このときリフトフォーク2が荷物載置面の高さに合わないときは、このリフトフォーク2の下限での停止位置である下限位置A及びこれよりも一定の高さ上昇されて停止される掬取位置Bの高さを上下に移動調節する。この下限位置Aが低過ぎるときは上昇側に移動調節し、高過ぎるときは下降側に移動調節する。この下限位置Aの上、下移動調節によって掬取位置Bも同高さ移動調節される。これら下限位置A及び掬取位置Bの高さ調節によってリフトフォーク2の下限停止の位置や掬上停止の位置等の高さが変更されて目標の高さに決められる。
【0006】
【発明の効果】
請求項1に記載の発明は、リフトフォーク2を荷物載置面から僅かな必要最小限度の高さ位置の掬取位置Bに上昇させて自動的に上昇を停止させるために、掬取位置Bでの荷物支持を的確に維持して、このリフトフォーク2の上げ不足や、上げ過ぎによる運搬障害をなくして、台車フレーム1の移動による荷物運搬を速やかに円滑に行わせることができる。
【0007】
請求項2に記載の発明は、台車フレーム1に対するリフトフォーク2の下限位置Aを調節することによって、異なる高さの荷物載置面での荷物掬取運搬を行うことができ利用域を広くすることができる。又、この下限位置Aと同時に掬取位置Bも同調されるため、調節も簡単に行うことができる。
【0008】
【発明の実施の形態】
この発明の実施例を図面に基づいて説明する。台車フレーム1は、細く高い箱形の形態で、下端には左右一対の車輪3と左右一対の補助輪4とを前後に配置して四輪形態に支持でき、後側上部にハンドル5を有する。フォーク形態のリフトフォーク2は、この台車フレーム1の前側に水平状に突出してモータ6によって電動で昇降される。フレーム1の前側に沿ってレール7が設けられ、該モータ6によって駆動されるチェン8が上下のスプロケット9,10間に張設され、このチェン8に連結されて昇降されるリフトフォーク2のキャリッジ11のガイドローラ12を、該レール7に案内させる。モータ6は前記下端部のスプロケット10軸13を駆動することによって、リフトフォーク2を昇降できる。14はキャリッジ11上に設けた支持枠で、リフトフォーク2上に受けられる穀粒袋15等の荷物を支持して転倒を防止する。
【0009】
前記キャリッジ11の昇降域にはフレーム1部にリミットスイッチ形態の位置スイッチ16〜19を配置して、キャリッジ11の背部に一体のカム20を摺接させてON,OFFさせることができ、コントローラ21を介してモータ6を出力できる。この位置スイッチは、リフトフォーク2の下限位置Aに対応する下限スイッチ16、掬取位置Bに対応する掬取スイッチ17、昇降行程の中間結び位置Cに対応する中間スイッチ18、及び上限位置Dに対応する上限スイッチ19等が配置される。又、ハンドル5部には、昇降スイッチ22が設けられる。この昇降スイッチ22を上昇側又は下降側へ操作することでリフトフォーク2を上昇、下降させることができる。
リフトフォーク2が下限位置Aにあるときは、下限スイッチ16がOFFされており、リフトフォーク2に荷物を載せたり、このリフトフォーク2で荷物を掬うことができる。この状態で昇降スイッチ22上昇側に操作すると、モータ6が上昇方向に駆動されて、リフトフォーク2が上昇される。このリフトフォーク2の上昇によりカム20が掬取スイッチ17をOFFしてモータ6の駆動を停止して、リフトフォーク2の上昇を停止する。この状態から昇降スイッチ22を再度上昇側に操作するとモータ6が上昇側に駆動されてリフトフォーク2を上昇し、このリフトフォーク2が中間位置Cに上昇したとき、カム20で中間スイッチ18をOFFにして上昇停止する。同様に、中間位置Cの状態から昇降スイッチ22を上昇降に操作すると、リフトフォーク2が上限位置Dに上昇停止する。
すなわち、昇降スイッチ22を上昇側に操作すると、各スイッチ16,17,18,19のOFFによって下限位置A、掬取位置B、中間位置C、上限位置Dで停止する。
【0010】
リフトフォーク2の下降は、昇降スイッチ22の下降側への操作により行い、本実施例では、リフトアーム2が下限位置A以外の上方位置で停止しているときには、昇降スイッチ22を下降側へ一度操作すると下限位置Aまで一気に下降されて停止される。
尚、リフトフォーク2を上昇させるとき、掬取位置B及び、又は、中間位置Cでの停止をキャンセルさせることも可能で、リフトフォーク2を下降させるとき、下限位置Aまで一気に下降させず、中間位置Cや掬取位置Bで停止するよう設定しても良く、作業形態に応じて、それに適した効率の良い昇降を任意に選択すれば良い。
【0011】
前記下限スイッチ16と掬取スイッチ17とは、フレーム1に対して上下に移動調節しうる調節プレート24に取付けられる。調節プレート24の下位に下限スイッチ16が取付けられ、上位に掬取スイッチ17が取付けられて、前記下限位置Aと掬取位置Bとの高さ間隔Hが設定される。この高さ間隔Hは、掬取スイッチ17の調節プレート24に対するボルト36による取付位置を上下に移動して調節可能に構成することもできる。このように下限スイッチ16と掬取スイッチ17を一体的に取付けた調節プレート24を、セットボルト25によってフレーム1の長穴35に対して着脱可能とし、上下に取付位置を変更調節できる。この調節プレート24の上下調節形態としては、操作レバーや、電気的な操作スイッチ等によって移動調節できるように構成することもできる。このように操作レバー等によって下限スイッチ16等の位置を調節操作する構成とすれば、台車フレーム1を移動させながらリフトフォーク2の下限位置Aを荷物載置面乃至これよりも若干低い位置に合せることができる。
【0012】
前記リフターの使用例として、選別装置26から取出される穀粒を受けて計量袋詰する計量器27上の袋詰作業に利用できる。選別装置26は、穀粒を供給する供給ホッパー28、上下方向の回転軸の周りに回転しながら供給ホッパー28から供給される穀粒を揚送しながら選別する選別筒29、この選別穀粒を排出する排出ホッパー口30、及びシャッター31等を有する。この排出ホッパー口30の下端にはビニール筒等からなる可撓性の排出筒32が設けられる。又、この排出筒32の下方に設置される計量器27は、上面の計量台33に前記リフトフォーク2の差込まれるフォーク溝34が形成される。自動計測の形態では、この計量器27の所定計量によって前記選別装置26のシャッター31を閉鎖するように機械的又は電気的に連動構成する。
【0013】
リフトフォーク2を下限位置Aに下げた状態にして、台車フレーム1を計量器27の正面に接近させる。このリフトフォーク2を計量台33のフォーク溝34部に差込むようにして嵌合位置させる。この計量台33の上面に空の穀粒袋15を載せて、選別装置26の排出筒32下にのぞませる。ここでシャッター31を開いて選別穀粒を排出口30から排出筒32を介して袋15内へ供給収容させる。この穀粒袋15が一杯になるとシャッター31を閉めて、リフターによる穀粒袋15の移動を行う。このリフターの移動にあたっては、昇降スイッチ22を操作することによって、リフトフォーク2が下限位置Aから荷物載置面上の掬取位置Bにまで上昇されて、穀粒袋15の底面を支持して計量台33上の僅かな高さに持上げて停止する。この状態で作業者が台車フレーム1を後退操作して、リフトフォーク2で穀粒袋15を支持した状態で計量台33上から外側へ移動乃至運搬(図9)することができる。このとき、リフトフォーク2は、穀粒袋15の底部を掬取装置Bに上昇させているため、荷物載置面である計量台33面への接触を少なくして、移動、運搬を円滑に行うことができる。
このようにして、計量台33上から外側へ取出移動されたリフトフォーク2は昇降スイッチ22の操作によって上昇されて、中間スイッチ18の中間位置Cで停止される。この中間位置Cにまで上昇された穀粒袋15は、袋口を閉鎖したり、口仕舞い等が行われる。この穀粒袋15の下降は昇降スイッチ22を操作しリフトアーム2を下降することによって行うことができる。又、このリフターを車輪3部で支持させた状態で穀粒袋15を載せた状態で運搬することもできる。又、リフトフォーク2が下限位置Aに下降されて停止された状態では台車フレーム1の移動によって再度計量器27に接近して、リフトフォーク2部をフォーク溝34に差込むことができる。
このとき、リフトフォーク2の高さがフォーク溝34の高さに適合しないときは、調節プレート24を上下に移動してリフトフォーク2の下限位置Aの高さを調節する。この調節を行った後は昇降スイッチ22を操作することによって新たな調節後の下限位置Aにリフトフォーク2を昇降させて停止させることができる。
【0014】
次に、主として図10,図11に基づいて上例と異なる点は、前記リフトフォーク2に、穀粒袋15を支持することによってシーソーヒンジ37の周りに揺動して先端のストッパー38を計量台33上に突出される滑り止めプレート39を設けたものである。計量台33上の穀粒袋15の底面をリフトフォーク2で掬取って上昇することができるが、このとき穀粒袋15の底面を支持することによって滑り止めプレート39が回動されて、この先端のストッパー38部が上方に突出されて袋底の先端側への滑動を係止することができる。構成が簡単であり、袋15の自重によってストッパー38部を突出させて係合するため滑り止めを確実に行わせる。滑り止めプレート39は左右一対に設けられ、先部にはバランサウェイト40を有して、この先端のストッパー38側が下動しうる状態に設け、下動位置をリフトフォーク2のストッパピン41で受けて、他端側の押下部42がリフトフォーク2の上側適宜の高さの上方位置Eに突出するように構成している。このリフトフォーク2の前記上昇Bによって袋15底を支持すると、これによって押下部42が下方位置Fへ押下げられて、ストッパー38部が上方に突出されて、袋15底の先端側への滑動を係止する。なお、前記ウェイト40に代えて、シーソーヒンジ37の周りにトルクスプリングを設けて、無袋位置Eに復帰回動するように構成することもできる。
【図面の簡単な説明】
【図1】リフターの側面図。
【図2】そのリフトフォークの作用状態を示す作用説明図。
【図3】そのリフトフォークの昇降制御のブロック図。
【図4】そのリフターの平面図。
【図5】その計量器部の正面図。
【図6】その下限スイッチ取付部の側面図。
【図7】その背面図。
【図8】リフターの作業状態を示す側面図。
【図9】そのリフターの作業状態を示す側面図。
【図10】一部別実施例を示すリフトフォーク部の作動状態を示す側面図。
【図11】その平面図。
【符号の説明】
1 フレーム
2 リフトフォーク
A 下限位置
B 掬取位置
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lifting and lowering control device for a lifter, which lifts and transports or transports a heavy object such as a grain bag from a luggage mounting surface.
[0002]
[Prior art]
Grain bags to be weighed are loaded on the upper surface of the table and raised to a certain height to close the bag mouth, etc., and to carry out the work of removing the grain bags to a height that can be done naturally. 2. Description of the Related Art There is known a lifter technique (see, for example, Patent Document 1).
[Patent Document 1] Japanese Utility Model Laid-Open No. 6-35297 (page 1, FIG. 1)
[0003]
[Problems to be solved by the invention]
When scooping up the grain bag on the weighing platform of the weighing machine with the lift fork of the lifter and closing or carrying the bag mouth, lift the fork at the lower limit position with the luggage loading surface and the bottom of the grain bag on this upper surface. In order to insert between them, it is necessary to form an insertion interval of the lift fork between them. In addition, a supply port for discharging and supplying grains, such as a sorter, is close to the bag port of the grain bag received on the weighing table and is in a state of being looked for. When the grain bag is lifted by the lifter in such a state, the bag mouth of the grain bag is caught by a supply port of a sorter or the like, and then the grain bag is moved outward from the weighing table. It is difficult to take out or transport smoothly. In such a case, it is necessary to control so that the lift fork does not go up too much or not enough, and the operation is delicate and requires skill.
[0004]
[Means for Solving the Problems]
The invention described in claim 1 is that the lift fork 2 which can be driven up and down with respect to the bogie frame 1 is provided so as to be able to be automatically stopped by moving up from the lower limit position A to the scooping position B on the luggage placing surface. The lifter lifting and lowering control device is characterized by the configuration. With the lift fork 2 lowered to the lower limit position A with respect to the bogie frame 1, the lift fork 2 is inserted between the luggage placing surface and the luggage on the upper surface, and the lift fork 2 is slightly raised. Scoop up to the scooping position B on the baggage loading surface. When the lift fork 2 is raised to the scooping position B, it is automatically stopped. In this state, the carriage frame 1 can be moved back and forth or the like, and the load can be transported while being placed on the lift fork 2.
[0005]
The invention described in claim 2 is characterized in that the height of the lower limit position A and the scooping position B of the lift fork 2 is provided so as to be adjustable. When the luggage is picked up by the lifter, the lowering position of the lift fork 2 at the lower limit position A is set to the luggage mounting surface or a position slightly lower than this. At this time, when the lift fork 2 does not match the height of the luggage loading surface, the lower limit position A, which is the stop position at the lower limit of the lift fork 2, and the scooping which is lifted and stopped at a certain height higher than this Move and adjust the height of position B up and down. When the lower limit position A is too low, the movement is adjusted upward, and when it is too high, the movement is adjusted downward. The scooping position B is also adjusted in height by adjusting the upper and lower movements of the lower limit position A. By adjusting the heights of the lower limit position A and the scooping position B, the heights of the lower limit stop position and the scooping stop position of the lift fork 2 are changed to be set to the target heights.
[0006]
【The invention's effect】
According to the first aspect of the present invention, the lift fork 2 is lifted from the luggage mounting surface to the slightly necessary minimum height of the scooping position B to automatically stop the lifting. The luggage support of the truck 1 can be accurately maintained, and the lifting fork 2 can be quickly and smoothly transported by moving the trolley frame 1 without the insufficient lifting of the lift fork 2 and the transportation obstacle due to the excessive lifting.
[0007]
According to the second aspect of the present invention, the lower limit position A of the lift fork 2 with respect to the bogie frame 1 is adjusted, so that the luggage can be picked up and transported on the luggage mounting surfaces of different heights, and the use area can be widened. be able to. Further, since the scooping position B is synchronized with the lower limit position A, the adjustment can be easily performed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. The bogie frame 1 is in the form of a thin and high box. The pair of left and right wheels 3 and the pair of left and right auxiliary wheels 4 can be arranged in front and rear at the lower end to support a four-wheel configuration, and have a handle 5 on the upper rear side. . The lift fork 2 in the form of a fork projects horizontally to the front side of the bogie frame 1 and is moved up and down electrically by a motor 6. A rail 7 is provided along the front side of the frame 1, and a chain 8 driven by the motor 6 is stretched between upper and lower sprockets 9 and 10, and a carriage of the lift fork 2 connected to the chain 8 and moved up and down. 11 guide rollers 12 are guided by the rails 7. The motor 6 can raise and lower the lift fork 2 by driving the sprocket 10 shaft 13 at the lower end. Reference numeral 14 denotes a support frame provided on the carriage 11 for supporting a bag such as a grain bag 15 received on the lift fork 2 to prevent the bag from falling.
[0009]
Position switches 16 to 19 in the form of limit switches are arranged on the frame 1 in the elevating area of the carriage 11, and an integral cam 20 can be slid on the back of the carriage 11 to be turned on and off. Can output the motor 6. The position switch includes a lower limit switch 16 corresponding to the lower limit position A of the lift fork 2, a scooping switch 17 corresponding to the scooping position B, an intermediate switch 18 corresponding to the intermediate knotting position C of the ascent / descent stroke, and an upper limit position D. A corresponding upper limit switch 19 and the like are arranged. An elevating switch 22 is provided on the handle 5. The lift fork 2 can be raised and lowered by operating the lift switch 22 to the upward side or the downward side.
When the lift fork 2 is at the lower limit position A, the lower limit switch 16 is turned off, so that the load can be placed on the lift fork 2 or the load can be scooped by the lift fork 2. In this state, when the lift switch 22 is operated upward, the motor 6 is driven in the upward direction, and the lift fork 2 is raised. When the lift fork 2 rises, the cam 20 turns off the scooping switch 17 to stop the drive of the motor 6 and stop the lift fork 2. When the lift switch 22 is again moved upward from this state, the motor 6 is driven upward to lift the lift fork 2, and when the lift fork 2 rises to the intermediate position C, the cam 20 turns off the intermediate switch 18. And then stop rising. Similarly, when the elevating switch 22 is operated to move up and down from the state of the intermediate position C, the lift fork 2 rises and stops at the upper limit position D.
That is, when the raising / lowering switch 22 is operated upward, the switches 16, 17, 18, and 19 are turned off to stop at the lower limit position A, the scooping position B, the intermediate position C, and the upper limit position D.
[0010]
The lowering of the lift fork 2 is performed by operating the elevating switch 22 to the lowering side. In this embodiment, when the lift arm 2 is stopped at an upper position other than the lower limit position A, the elevating switch 22 is once moved to the lowering side. When operated, it is immediately lowered to the lower limit position A and stopped.
When the lift fork 2 is raised, it is also possible to cancel the stop at the scooping position B and / or the intermediate position C. When lowering the lift fork 2, it is not necessary to lower the lift fork 2 to the lower limit position A at once. It may be set so as to stop at the position C or the scooping position B, and it is only necessary to arbitrarily select an efficient lifting and lowering suitable for the work mode.
[0011]
The lower limit switch 16 and the scooping switch 17 are mounted on an adjustment plate 24 that can be moved up and down with respect to the frame 1. The lower limit switch 16 is attached to the lower part of the adjustment plate 24, and the scooping switch 17 is attached to the upper part, and the height interval H between the lower limit position A and the scooping position B is set. The height interval H may be configured to be adjustable by moving the mounting position of the scooping switch 17 to the adjustment plate 24 by the bolt 36 up and down. In this way, the adjustment plate 24 on which the lower limit switch 16 and the scooping switch 17 are integrally mounted can be detachably attached to the long hole 35 of the frame 1 by the set bolt 25, and the mounting position can be changed vertically. The up and down adjustment of the adjustment plate 24 may be configured so that the movement can be adjusted by an operation lever, an electric operation switch, or the like. With the configuration in which the position of the lower limit switch 16 or the like is adjusted by the operation lever or the like, the lower limit position A of the lift fork 2 is adjusted to the luggage loading surface or a position slightly lower than this while moving the bogie frame 1. be able to.
[0012]
As an example of the use of the lifter, the lifter can be used for a bagging operation on a weighing machine 27 that receives and removes the grains taken out from the sorting device 26 and weighs and bags. The sorting device 26 includes a supply hopper 28 that supplies the grains, a sorting cylinder 29 that sorts while feeding the grains supplied from the supply hopper 28 while rotating around the vertical rotation axis, and separating the sorted grains. It has a discharge hopper port 30 for discharging, a shutter 31 and the like. At the lower end of the discharge hopper port 30, a flexible discharge tube 32 made of a vinyl tube or the like is provided. In the measuring device 27 installed below the discharge tube 32, a fork groove 34 into which the lift fork 2 is inserted is formed in the measuring table 33 on the upper surface. In the automatic measurement mode, the shutter 31 of the sorting device 26 is mechanically or electrically interlocked so as to close the shutter 31 by the predetermined weighing of the weighing device 27.
[0013]
With the lift fork 2 lowered to the lower limit position A, the bogie frame 1 is brought closer to the front of the measuring instrument 27. The lift fork 2 is fitted to the fork groove 34 of the weighing table 33 so as to be inserted. An empty grain bag 15 is placed on the upper surface of the weighing table 33 and is viewed below the discharge tube 32 of the sorting device 26. Here, the shutter 31 is opened, and the sorted grains are supplied from the discharge port 30 to the bag 15 via the discharge tube 32 and stored therein. When the grain bag 15 becomes full, the shutter 31 is closed, and the grain bag 15 is moved by the lifter. When the lifter is moved, the lift fork 2 is raised from the lower limit position A to the scooping position B on the luggage placing surface by operating the lift switch 22 to support the bottom surface of the grain bag 15. It lifts to a slight height above the weighing table 33 and stops. In this state, the operator can retreat the carriage frame 1 to move or transport the weighing table 33 from above to outside while supporting the grain bag 15 with the lift fork 2 (FIG. 9). At this time, since the lift fork 2 raises the bottom of the grain bag 15 to the scooping device B, the lift fork 2 makes less contact with the weighing table 33, which is the luggage placing surface, and moves and transports smoothly. It can be carried out.
In this way, the lift fork 2 taken out and moved from above the weighing table 33 is raised by the operation of the lift switch 22 and stopped at the intermediate position C of the intermediate switch 18. The grain bag 15 raised to the intermediate position C closes the bag mouth, closes the mouth, and the like. The grain bag 15 can be lowered by operating the lift switch 22 and lowering the lift arm 2. Further, the lifter can be transported with the grain bag 15 mounted thereon while being supported by the three wheels. When the lift fork 2 is lowered to the lower limit position A and stopped, the truck frame 1 moves to approach the measuring device 27 again, and the lift fork 2 can be inserted into the fork groove 34.
At this time, if the height of the lift fork 2 does not match the height of the fork groove 34, the height of the lower limit position A of the lift fork 2 is adjusted by moving the adjustment plate 24 up and down. After performing this adjustment, the lift fork 2 can be moved up and down to the new adjusted lower limit position A by operating the lift switch 22 to stop the lift fork 2.
[0014]
Next, the difference from the above example mainly based on FIGS. 10 and 11 is that the grain bag 15 is supported on the lift fork 2 to swing around the seesaw hinge 37 to measure the stopper 38 at the tip. A non-slip plate 39 protruding from the table 33 is provided. The bottom surface of the grain bag 15 on the weighing table 33 can be lifted by scooping with the lift fork 2. At this time, the non-slip plate 39 is rotated by supporting the bottom surface of the grain bag 15. The stopper 38 at the front end is protruded upward to lock the sliding of the bag bottom toward the front end. The configuration is simple, and the stopper 38 is projected and engaged by the weight of the bag 15 so that slip prevention is surely performed. The anti-slip plates 39 are provided in a pair on the left and right sides, and have a balancer weight 40 at the front end thereof. The stopper 38 at the tip is provided so as to be able to move downward. Thus, the pressing portion 42 on the other end side is configured to protrude to an upper position E at an appropriate height above the lift fork 2. When the bottom of the bag 15 is supported by the lift B of the lift fork 2, the pressing portion 42 is pushed down to the lower position F, and the stopper 38 is protruded upward, and the bottom of the bag 15 slides toward the tip end side. Lock. Instead of the weight 40, a torque spring may be provided around the seesaw hinge 37 so as to return to the bagless position E and rotate.
[Brief description of the drawings]
FIG. 1 is a side view of a lifter.
FIG. 2 is an operation explanatory view showing an operation state of the lift fork.
FIG. 3 is a block diagram of lift control of the lift fork.
FIG. 4 is a plan view of the lifter.
FIG. 5 is a front view of the measuring unit.
FIG. 6 is a side view of the lower limit switch mounting portion.
FIG. 7 is a rear view thereof.
FIG. 8 is a side view showing a working state of the lifter.
FIG. 9 is a side view showing a working state of the lifter.
FIG. 10 is a side view showing an operation state of a lift fork portion showing a partially different embodiment.
FIG. 11 is a plan view thereof.
[Explanation of symbols]
1 Frame 2 Lift fork A Lower limit position B Scooping position

Claims (2)

台車フレーム(1)に対して昇降駆動可能のリフトフォーク(2)を、下限位置(A)から荷物載置面上の掬取位置(B)に上昇させて自動停止可能に設けたことを特徴とするリフターの昇降制御装置。A lift fork (2) that can be driven up and down with respect to the bogie frame (1) is provided so as to be able to be automatically stopped by being lifted from a lower limit position (A) to a scooping position (B) on the luggage placing surface. Lifter lifting and lowering control device. 前記リフトフォーク(2)の下限位置(A)及び掬取位置(B)の高さを調節可能に設けたことを特徴とする請求項1に記載のリフターの昇降制御装置。2. The lift control device according to claim 1, wherein the height of the lower limit position (A) and the height of the scooping position (B) of the lift fork (2) are adjustable.
JP2003061554A 2003-03-07 2003-03-07 Lift control device of lifter Pending JP2004269146A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007308292A (en) * 2006-05-22 2007-11-29 Hitachi Building Systems Co Ltd Operation guide device for level difference eliminating device
JP2008013273A (en) * 2006-07-03 2008-01-24 Mk Seiko Co Ltd Lifter device
JP2008265917A (en) * 2007-04-18 2008-11-06 Atex Co Ltd Lift fork lifting device for lifter
CN103213794A (en) * 2013-04-25 2013-07-24 中联重科股份有限公司渭南分公司 Back-loaded compression garbage truck and loading and shoveling position control method and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4870366U (en) * 1971-10-14 1973-09-05
JPS6016663U (en) * 1983-07-14 1985-02-04 新興機械株式会社 Quantitative grain bag moving equipment
JPS60202098A (en) * 1984-03-23 1985-10-12 財団法人鉄道総合技術研究所 Automatic elevation stop device by set height of forklift
JPS61159078U (en) * 1985-03-22 1986-10-02
JPH0635297U (en) * 1992-10-19 1994-05-10 株式会社タイショー Lifting table for grain storage bag
JPH0884960A (en) * 1994-09-14 1996-04-02 Seirei Ind Co Ltd Automatic measuring structure of rice sorter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4870366U (en) * 1971-10-14 1973-09-05
JPS6016663U (en) * 1983-07-14 1985-02-04 新興機械株式会社 Quantitative grain bag moving equipment
JPS60202098A (en) * 1984-03-23 1985-10-12 財団法人鉄道総合技術研究所 Automatic elevation stop device by set height of forklift
JPS61159078U (en) * 1985-03-22 1986-10-02
JPH0635297U (en) * 1992-10-19 1994-05-10 株式会社タイショー Lifting table for grain storage bag
JPH0884960A (en) * 1994-09-14 1996-04-02 Seirei Ind Co Ltd Automatic measuring structure of rice sorter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007308292A (en) * 2006-05-22 2007-11-29 Hitachi Building Systems Co Ltd Operation guide device for level difference eliminating device
JP2008013273A (en) * 2006-07-03 2008-01-24 Mk Seiko Co Ltd Lifter device
JP2008265917A (en) * 2007-04-18 2008-11-06 Atex Co Ltd Lift fork lifting device for lifter
CN103213794A (en) * 2013-04-25 2013-07-24 中联重科股份有限公司渭南分公司 Back-loaded compression garbage truck and loading and shoveling position control method and system

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