JPS6211916Y2 - - Google Patents
Info
- Publication number
- JPS6211916Y2 JPS6211916Y2 JP9947381U JP9947381U JPS6211916Y2 JP S6211916 Y2 JPS6211916 Y2 JP S6211916Y2 JP 9947381 U JP9947381 U JP 9947381U JP 9947381 U JP9947381 U JP 9947381U JP S6211916 Y2 JPS6211916 Y2 JP S6211916Y2
- Authority
- JP
- Japan
- Prior art keywords
- movement
- push
- face
- amount
- pull
- 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.)
- Expired
Links
- 206010016256 fatigue Diseases 0.000 description 2
- 208000025174 PANDAS Diseases 0.000 description 1
- 208000021155 Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infection Diseases 0.000 description 1
- 240000000220 Panda oleosa Species 0.000 description 1
- 235000016496 Panda oleosa Nutrition 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Description
【考案の詳細な説明】
この考案はプツシユプル装置を装備したフオー
クリフトトラツクの制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a control device for a forklift truck equipped with a push-pull device.
従来プツシユプル装置を装備したフオークリフ
トトラツクにおいては、プツシユプル装置のフエ
イス速度に同期させて車速を制御し、荷置や荷取
りなどの荷役作業を行つており、これら作業には
熟練した技術を必要とすると共に、作業に細心の
注意を払うため、運転者が早期に疲労したり、作
業能率が悪いなどの不具合があつた。 Conventionally, forklift trucks equipped with a push-pull device control the vehicle speed in synchronization with the face speed of the push-pull device to perform cargo handling operations such as loading and unloading, and these operations require skilled techniques. At the same time, because drivers had to pay close attention to their work, there were problems such as early fatigue and poor work efficiency.
この考案はかかる不具合を改善する目的でなさ
れたもので、プツシユプル装置のフエイス移動量
と車両移動量の差を電気的に検出し、得られた信
号によりフエイスの移動量を制御するようにした
フオークリフトトラツクの制御装置を提供して、
プツシユプル装置による荷役作業が何等熟練を必
要とせず、能率よく行なえるようにしたものであ
る。 This invention was made with the aim of improving this problem, and is a fork system that electrically detects the difference between the amount of movement of the face of the push-pull device and the amount of movement of the vehicle, and controls the amount of movement of the face using the obtained signal. Providing lift truck control equipment,
This allows cargo handling work using a push-pull device to be carried out efficiently without requiring any skill.
以下この考案を図示の一実施例により詳述す
る。図において１はフオークリフトトラツクの車
体で、前部にマスト２が立設されており、このマ
スト２に図示しないリフトシリンダにより上下自
動自在なフインガバ３が支承されている。そして
このフインガバ３の前面にプツシユプル装置４が
装着されている。プツシユプル装置４はフレーム
５に基端側が支持された一対のプラテン６を有し
ており、フレーム５にはパンダグラフ状に組合せ
たリンク機構７の一端側が枢着されている。上記
リンク機構７の中間部とフレーム５の間にはプツ
シユプルシリンダ８が設けられていて、このプツ
シユプルシリンダ８を伸縮させることにより、リ
ンク機構７の他端側に取付けたフエイス９を、プ
ラテン６に沿つて前後動できるようになつてい
る。またフエイス９の下部にはジヨウ１０と、グ
リツパ１１が設けられていて、これらジヨウ１０
及びグリツパ１１の間で図示しないシートパレツ
トを挾持することにより、シートパレツト上の積
荷をプラテン６上へ引き込めるようになつている
と共に、上記フエイス９の上部にはチエーンなど
の線条１２の一端が結着されている。上記線条１
２の他端はフレーム５上に設けられたフエイス移
動量検出器１３の回転軸１３ａに取付けられたス
プロケツト１４を迂回された後フレーム５に沿つ
て垂下され、端部はフレーム５に固着されてい
る。上記フエイス移動量検出装置１３は例えばパ
ルスジエネレータであつて、例えばフエイス９が
５mm移動する毎に１パルスのパルス信号を発生す
るようになつており、このパルス信号は積算器１
５で積算された後Ｄ−Ａ変換器１６により積算パ
ルス数に比例した大きさの電圧に変換され比較回
路１７へ入力されるようになつている。 This invention will be explained in detail below with reference to an illustrated embodiment. In the figure, reference numeral 1 denotes the body of a forklift truck. A mast 2 is erected at the front of the vehicle, and a finger lever 3 that can be moved up and down automatically is supported on the mast 2 by a lift cylinder (not shown). A push-pull device 4 is attached to the front surface of the finger bar 3. The push-pull device 4 has a pair of platens 6 whose proximal ends are supported by a frame 5, and one end side of a link mechanism 7 combined in a panda graph is pivotally attached to the frame 5. A push-pull cylinder 8 is provided between the intermediate portion of the link mechanism 7 and the frame 5, and by expanding and contracting the push-pull cylinder 8, the face 9 attached to the other end of the link mechanism 7 can be moved. , can move back and forth along the platen 6. Further, a jaw 10 and a gripper 11 are provided at the bottom of the face 9.
By holding a sheet pallet (not shown) between the grippers 11 and 11, the load on the sheet pallet can be pulled onto the platen 6. At the top of the face 9, one end of a filament 12 such as a chain is connected. It is worn. The above striation 1
The other end of 2 is suspended along the frame 5 after passing around the sprocket 14 attached to the rotating shaft 13a of the face movement amount detector 13 provided on the frame 5, and the end portion is fixed to the frame 5. There is. The face movement amount detection device 13 is, for example, a pulse generator, and is designed to generate one pulse signal every time the face 9 moves by 5 mm, and this pulse signal is sent to the integrator 1.
After being integrated in step 5, the voltage is converted by a DA converter 16 into a voltage proportional to the number of integrated pulses, and is input to a comparator circuit 17.
一方上記車体１前部に設けられた車輪２３の車
軸には車速検出器１８が連動されている。上記車
速検出器１８は例えばパルスジエネレータなどで
あつて、車両が例えば５mm移動したとき１パルス
のパルス信号を発生するようになつており、この
パルス信号は積算器１９で積算された後Ｄ−Ａ変
換器２０で積算パルス数に比例した大きさの電圧
に変換され、前記Ｄ−Ａ変換器１６の出力ととも
に比較回路１７へ入力される。比較回路１７では
両電圧の差を比較してその偏差を増幅器２１へ出
力すると共に、増幅器２１で増幅された偏差は、
プツシユプルシリンダ８の油圧回路に設けられた
流量制御弁２２へ入力されて、この流量制御弁２
２によりプツシユプルシリンダ８へ流入する流量
が制御され、これによつて車体１の移動量とフエ
イス９の移動量が常に一致するようフエイス９の
移動量が制御される。 On the other hand, a vehicle speed detector 18 is linked to an axle of a wheel 23 provided at the front portion of the vehicle body 1. The vehicle speed detector 18 is, for example, a pulse generator or the like, and is designed to generate one pulse signal when the vehicle moves, for example, 5 mm, and after this pulse signal is integrated by an integrator 19, the D- The A converter 20 converts the voltage into a voltage proportional to the cumulative number of pulses, and inputs it to the comparator circuit 17 together with the output of the DA converter 16 . The comparator circuit 17 compares the difference between the two voltages and outputs the deviation to the amplifier 21, and the deviation amplified by the amplifier 21 is
The input is input to the flow control valve 22 provided in the hydraulic circuit of the push-pull cylinder 8.
2 controls the flow rate flowing into the push-pull cylinder 8, thereby controlling the amount of movement of the face 9 so that the amount of movement of the vehicle body 1 always matches the amount of movement of the face 9.
この考案は以上詳述したように、車体の移動量
とフエイスの移動量を検出して両者の偏差により
流量制御弁を制御することにより、車速とフエイ
ス速度を同期させたことから何等熟練を要さずに
プツシユプル装置による荷置や荷取りなどの荷役
作業が行なえると共に、運転者の疲労軽減と作業
能率の向上も図れるようになる。 As detailed above, this idea requires some skill because it synchronizes the vehicle speed and the face speed by detecting the amount of movement of the car body and the amount of movement of the face and controlling the flow control valve based on the deviation between the two. Loading and unloading operations such as loading and unloading using the push-pull device can be carried out without having to move, and the driver's fatigue can be reduced and work efficiency can be improved.
図面はこの考案の一実施例を示し、第１図は全
体的な側面図、第２図はこの装置のブロツク図で
ある。
４はプツシユプル装置、８はプツシユプルシリ
ンダ、９はフエイス、１３はフエイス移動量検出
器、１５及び１９は積算器、１６及び２０はＤ−
Ａ変換器、１７は比較回路、１８は車速検出器、
２２は流量制御弁。
The drawings show one embodiment of this device, with FIG. 1 being an overall side view and FIG. 2 being a block diagram of this device. 4 is a push-pull device, 8 is a push-pull cylinder, 9 is a face, 13 is a face movement amount detector, 15 and 19 are integrators, 16 and 20 are D-
A converter, 17 is a comparison circuit, 18 is a vehicle speed detector,
22 is a flow control valve.
Claims (1)
エイス９を有するプツシユプル装置４を装備した
フオークリフトトラツクにおいて、上記プツシユ
プル装置４にフエイス９の移動量に応じた数のパ
ルスを発生するフエイス移動量検出器１３を、ま
た車体１に該車体１の移動量に応じた数のパルス
を発生する車速検出器１８を夫々設け、かつこれ
ら検出器１３，１８で発生されたパルスを積算器
１５，１９で積算して、その積算値をＤ−Ａ変換
器１６，２０で夫々積算パルス数に比例した電圧
に変換すると共に、得られた電圧を比較回路１７
により比較して、その偏差によりプツシユプルシ
リンダ８の油圧回路に設けた流量制御弁２２を制
御することにより、車体１の移動量とフエイス９
の移動量を同期させてなるフオークリフトトラツ
クの制御装置。 In a forklift truck equipped with a push-pull device 4 having a face 9 movable back and forth by a push-pull cylinder 8, a face movement amount detector 13 generates a number of pulses to the push-pull device 4 according to the amount of movement of the face 9. In addition, vehicle speed detectors 18 that generate a number of pulses corresponding to the amount of movement of the vehicle body 1 are respectively provided in the vehicle body 1, and the pulses generated by these detectors 13 and 18 are integrated by integrators 15 and 19. Then, the integrated value is converted into a voltage proportional to the integrated pulse number by the D-A converters 16 and 20, and the obtained voltage is converted to a voltage proportional to the integrated pulse number.
The amount of movement of the vehicle body 1 and the face 9 are controlled by comparing the deviation and controlling the flow rate control valve 22 provided in the hydraulic circuit of the push-pull cylinder 8.
A forklift truck control device that synchronizes the amount of movement of the forklift truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9947381U JPS587797U (en) | 1981-07-06 | 1981-07-06 | Forklift truck control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9947381U JPS587797U (en) | 1981-07-06 | 1981-07-06 | Forklift truck control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS587797U JPS587797U (en) | 1983-01-19 |
| JPS6211916Y2 true JPS6211916Y2 (en) | 1987-03-23 |
Family
ID=29894212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9947381U Granted JPS587797U (en) | 1981-07-06 | 1981-07-06 | Forklift truck control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS587797U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0218079Y2 (en) * | 1985-06-26 | 1990-05-21 |
-
1981
- 1981-07-06 JP JP9947381U patent/JPS587797U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS587797U (en) | 1983-01-19 |
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