JP3635605B2 - Packing sensor - Google Patents

Packing sensor Download PDF

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Publication number
JP3635605B2
JP3635605B2 JP05994697A JP5994697A JP3635605B2 JP 3635605 B2 JP3635605 B2 JP 3635605B2 JP 05994697 A JP05994697 A JP 05994697A JP 5994697 A JP5994697 A JP 5994697A JP 3635605 B2 JP3635605 B2 JP 3635605B2
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JP
Japan
Prior art keywords
load
loading
loading platform
stacker crane
sensor
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 - Fee Related
Application number
JP05994697A
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Japanese (ja)
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JPH10236606A (en
Inventor
俊雄 和田
Original Assignee
日本輸送機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 日本輸送機株式会社 filed Critical 日本輸送機株式会社
Priority to JP05994697A priority Critical patent/JP3635605B2/en
Publication of JPH10236606A publication Critical patent/JPH10236606A/en
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Publication of JP3635605B2 publication Critical patent/JP3635605B2/en
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Description

【0001】
【産業上の利用分野】
本発明は、立体棚の各列の間を走行するスタッカクレ−ンの荷台に、該荷台への荷の出し入れの際に生ずる荷ずれが生じたか否か、荷ずれが生じていたか否かを検出し、荷役作業時の障害を迅速に除去することを目的としたものである。
【0002】
【従来の技術】
従来は、立体棚の各列の間を走行するスタッカクレ−ンの荷台の四隅に支柱をそれぞれ立設し、該荷台への荷の出し入れを行う方向で回動する断面コ型状のフイラ−を上記支柱のそれぞれに設け、該フイラ−の上辺にカムを固定し、フイラ−の動きに従って動くカムの動きをミットスイッチで検出し、リミットスイッチの作動により、荷台への荷の出し入れの際に荷崩れが生じたか否か、荷崩れが生じていたか否かを検出する構成としていた。
【0003】
【発明が解決しようとする課題】
従来は、上述のように、立体棚の各列の間を走行するスタッカクレ−ンの荷台の四隅に支柱をそれぞれ立設し、該荷台への荷の出し入れを行う方向で回動する断面コ型状のフイラ−を上記支柱のそれぞれに設け、該フイラ−の上辺にカムを固定し、フイラ−の動きに従って動くカムの動きをミットスイッチで検出し、リミットスイッチの作動により、荷台への荷の出し入れの際に荷崩れが生じたか否か、荷崩れが生じていたか否かを検出する構成としていたので、荷のずれは検出できても、荷高さまで検出できないことまたフイラ−自体がスタッカクレ−ンの走行時の振動と共振して誤作動をしばしば起こしていた。本発明は、このような課題を解決すべく案出したものである。
【0004】
【課題を解決するための手段】
本発明は、立体棚の各列の間を走行するスタッカクレ−ンの荷台の四隅に支柱をそれぞれ立設し、該荷台への荷の出し入れを行う方向で回動する断面コ型状のフイラ−を上記支柱のそれぞれに設け、該フイラ−の上面に所定の長さのパイプ内に、上記スタッカクレ−ンの走行方向側で互いに向かい合う支柱の一方側に投光センサ−を、他方側に受光センサ−を収納固定し、上記フイラ−が荷に接触して回動して受光が遮断されたとき荷高さや荷姿のずれを検出することにより、上述の課題を解決したものである。
【0005】
【作用】
上記フイラ−が荷に接触して回動したとき、受光センサーの受光が遮断されることにより、荷姿のくずれが検出される。
【0006】
【発明の実施の形態】
本発明の実施の形態について図1ないし図5に基づき説明すると、図1は本発明の全体のシステム装置に斜視図を示したもので、立体自動倉庫1は、並列に多数配置した棚2、該棚2と棚2との間で形成された棚通路3を棚2の棚番地方向に沿って走行するスタッカクレ−ン4、該スタッカクレ−ン4と他の搬送機器例えばフォ−クリフト等(図示せず)との間で荷の受け渡し、授受を行う入出庫装置5、および図には図示していない上記スタッカクレ−ン4と入出庫装置5に入出庫作業指令信号を出力し、入出庫作業完了信号を受信して所定の制御を行わしめる制御装置49と該制御装置49からの信号に基づき在庫管理を行う在庫管理装置(図示せず)から構成されている。
【0007】
図2はスタッカクレ−ン4の全体構造図の斜視図を示し、該スタッカクレ−ン4の全体構造について説明する。上記スタッカクレ−ン4は前後方向にそれぞれ1本の立設した主枠6、該主枠6の上部を連結した上部連結部材7、主枠6の下部を連結する下部連結部材8、主枠6に沿って昇降動する荷台9、上記上部連結部材7の前後には、棚2の上部に配置された走行用ガイドレ−ル10を水平方向で挟んだ状態でガイドロ−ラ11を、下部連結部材8の前後には棚通路3に敷設した走行用レ−ル12上を回転走行する車輪13をそれぞれ装着している。
【0008】
主枠6の一方には車輪13を回転させる走行駆動装置14、荷台9を昇降動する昇降装置15を、他方には機上制御盤16をそれぞれ取り付けている。上記荷台9にはスタッカクレ−ン4の走行方向と直交する方向に移動するフォ−ク装置17が設けられ、該フォ−ク装置17の棚間口へ向けての前後方向の水平移動により棚2との荷の搬出・搬入や入出庫装置5との搬出・搬入を行う。
【0009】
本発明の荷姿センサ−の一実施例を図3ないし図5にて説明する。図3は荷台9に配置された荷姿センサ−の全体構造図を示す側面図で、荷台9の基枠18上面に水平移動可能なフォ−ク装置17を設け、該基枠18の中央前後に荷台側壁19、19を立設し、該荷台側壁19、19のそれぞれ外側の上下方向に、かつ、断面コ型状の主枠6の主枠側壁20の両外側に接するように昇降用ガイドロ−ラ21、21が転動可能に設けられ、荷台9は主枠6に沿って上下動する。
【0010】
荷台6の上面四隅それぞれに支柱固定用ブラケット22が固定され、支柱23はその下部にて、支柱23の最下端と基枠18の上面とは一定の空間を保って固定されている。また支柱23はその中間にて荷台側壁19、19から突出した支柱保持用ブラケット24、24で保持され、支柱23は四隅で立設している。該支柱23にフイラ−25が荷の取り出し、授受が行われる方向で回動可能に装着されている。
【0011】
図4にてフイラ−が支柱に装着されている構造の斜視図を示し、特に支柱23の上部での装着状態について、図4にて説明すると、支柱23は中空角材で、長手方向の中空部26を有する部材からなり、該中空部26内にフイラ−装着部材27の下面に突設した第一軸28を挿入し、該第一軸28の軸中心を回転中心としてフイラ−25が回動する。
【0012】
上記フイラ−装着部材27にはその下面に下方に突出した第一軸28、該第一軸28から所定の間隔をおいて第二軸30をそれぞれ固定し、一方の第一軸28には、円形状に複数回巻き回したスプリング31の頭部32を挿入し、他方の第二軸30には、該スプリング31の始端と終端の直線部33を挿入すると共に上記フイラ−装着部材27にはその上面に光センサ−を内蔵した長方形状のパイプ34を固定し、上記第一軸28を支柱23に挿入保持している。
【0013】
上記支柱23の外周には、頂部に凸部36を形成したストッパ35を固定すると共に該凸部36を上記スプリング31の始端と終端の直線部33に挿入している。また光センサ−には投光用光センサ−37と受光用センサ−38を互いに光軸が一致するよう向かい合わせに配置している。
【0014】
上記光センサ−を内蔵した長方形状のパイプ34の開口部39は、図5に図示したように、光軸に対して2倍すなわち2θとなる寸法のものを用い、余分な外乱光が入射しないような構造とする。
【0015】
【発明の効果】
本発明は、上述のように、支柱の上部に光センサ−を設けると共に上下方向にのびたフイラ−を回動可能に装着された構造なので、荷高さ方向の不良と荷ずれをの両方を1個のセンサ−で判別でき、しかも長方形状のパイプ内に光センサ−を内蔵して用いたものは外乱光による誤動作も減少して信頼性が向上する。
【図面の簡単な説明】
【図1】 本発明の全体のシステム構成図を示す。
【図2】 本発明に使用しているスタッカクレ−ンの斜視図を示す。
【図3】 本発明の光センサ−の全体の配置を示す側面図を示す。
【図4】 本発明の一実施例の取り付け状態を示す斜視図である。
【図5】 長方形のパイプへの光センサ−の配置を示す断面図である。
[0001]
[Industrial application fields]
The present invention detects whether or not a load deviation has occurred in the loading platform of the stacker crane that travels between each row of a three-dimensional shelf, and whether or not a loading deviation has occurred. The purpose of this is to quickly remove obstacles during cargo handling operations.
[0002]
[Prior art]
Conventionally, a pillar-shaped filler that rotates in the direction of loading / unloading to / from the four loading platforms of stacker cranes that run between each row of three-dimensional shelves is installed. A cam is fixed to the upper side of each of the support columns, the cam moving according to the movement of the filler is detected by a mitt switch, and when the load is loaded into and unloaded from the loading platform by the operation of the limit switch. It was configured to detect whether or not collapse occurred or whether or not cargo collapse occurred.
[0003]
[Problems to be solved by the invention]
Conventionally, as described above, the cross-sectional shape of the cross section is configured such that pillars are respectively erected at the four corners of the loading platform of the stacker crane that travels between the rows of the three-dimensional shelf, and is rotated in the direction of loading / unloading the loading platform Each of the above-mentioned pillars is provided with a circular-shaped filler, a cam is fixed to the upper side of the filler, the movement of the cam that moves according to the movement of the filler is detected by a mitt switch, and the limit switch is operated to Since it was configured to detect whether or not cargo collapse occurred during loading and unloading, it was possible to detect the load height but not the load height even when the load deviation could be detected. In many cases, malfunctions occurred due to resonance with the vibration of the vehicle running. The present invention has been devised to solve such problems.
[0004]
[Means for Solving the Problems]
The present invention provides a cross-sectional U-shaped filler that is erected in the four corners of a loading platform of a stacker crane that travels between rows of three-dimensional shelves and rotates in the direction of loading and unloading the loading platform. Provided on each of the columns, a light projecting sensor on one side of the columns facing each other on the running direction side of the stacker crane, and a light receiving sensor on the other side in a pipe having a predetermined length on the upper surface of the filler. -Is stored and fixed, and the above- mentioned problems are solved by detecting the load height and the load form deviation when the light is cut off by contact with the load and rotating .
[0005]
[Action]
When the filler rotates in contact with the load, the received light of the light receiving sensor is cut off, so that the load shape is detected.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view of the entire system apparatus of the present invention. A stacker crane 4 that travels along the shelf address direction of the shelf 2 through a shelf passage 3 formed between the shelf 2 and the shelf 2, the stacker crane 4 and other transport equipment such as a forklift (see FIG. The loading / unloading device 5 that delivers and receives / receives the cargo to / from the unloading device, and the stacker crane 4 and the loading / unloading device 5 (not shown in the figure) output the loading / unloading operation command signal, and the loading / unloading operation. The control device 49 is configured to receive a completion signal and perform predetermined control, and an inventory management device (not shown) that performs inventory management based on a signal from the control device 49.
[0007]
FIG. 2 is a perspective view of the overall structure of the stacker crane 4 and the overall structure of the stacker crane 4 will be described. The stacker crane 4 includes one main frame 6 erected in the front-rear direction, an upper connecting member 7 that connects the upper part of the main frame 6, a lower connecting member 8 that connects the lower part of the main frame 6, and the main frame 6. A guide roller 11 is placed in front of and behind the loading platform 9 that moves up and down along the upper connecting member 7 and a guide roller 11 that is disposed on the shelf 2 in the horizontal direction. Before and after 8, wheels 13 that run on a traveling rail 12 installed in the shelf path 3 are mounted.
[0008]
A traveling drive device 14 for rotating the wheel 13, a lifting device 15 for moving the loading platform 9 up and down, and an on-board control panel 16 are mounted on the other side of the main frame 6, respectively. The loading platform 9 is provided with a forking device 17 that moves in a direction orthogonal to the traveling direction of the stacker crane 4. The forking device 17 is moved horizontally with the shelf 2 by moving horizontally in the front-rear direction toward the shelf front. Carrying out / carrying in / out with the loading / unloading device 5 is performed.
[0009]
One embodiment of the load state sensor of the present invention will be described with reference to FIGS. FIG. 3 is a side view showing the overall structure of the load state sensor arranged on the loading platform 9, and a fork device 17 that can move horizontally is provided on the upper surface of the base frame 18 of the loading platform 9. The loading platform side walls 19 and 19 are erected on the upper and lower sides of the loading platform side walls 19 and 19 and in contact with both outer sides of the main frame side walls 20 of the U-shaped main frame 6. -The rollers 21 and 21 are provided so as to be able to roll, and the loading platform 9 moves up and down along the main frame 6.
[0010]
Support column fixing brackets 22 are fixed to the four corners of the upper surface of the loading platform 6, and the lower end of the support column 23 is fixed with a certain space between the lowermost end of the support column 23 and the upper surface of the base frame 18. Moreover, the support | pillar 23 is hold | maintained by the support | pillar holding brackets 24 and 24 which protruded from the loading platform side walls 19 and 19 in the middle, and the support | pillar 23 is standingly arranged in the four corners. A filler 25 is mounted on the column 23 so as to be rotatable in a direction in which a load is taken out and transferred.
[0011]
FIG. 4 shows a perspective view of the structure in which the filler is attached to the support column. In particular, the mounting state at the upper part of the support column 23 will be described with reference to FIG. 26, a first shaft 28 projecting from the lower surface of the filter mounting member 27 is inserted into the hollow portion 26, and the filter 25 rotates about the axis center of the first shaft 28 as a rotation center. To do.
[0012]
A first shaft 28 projecting downward on the lower surface of the filler mounting member 27 and a second shaft 30 are fixed at a predetermined distance from the first shaft 28. A head portion 32 of a spring 31 wound in a circular shape is inserted, and a straight end portion 33 at the start and end of the spring 31 is inserted into the other second shaft 30 and the filter mounting member 27 is inserted into the filter mounting member 27. A rectangular pipe 34 with a built-in optical sensor is fixed on the upper surface thereof, and the first shaft 28 is inserted and held in the column 23.
[0013]
A stopper 35 having a convex portion 36 formed on the top is fixed to the outer periphery of the column 23, and the convex portion 36 is inserted into the straight end portion 33 at the start and end of the spring 31. Further, the light sensor 37 and the light receiving sensor 38 are arranged facing each other so that their optical axes coincide with each other.
[0014]
As shown in FIG. 5, the opening 39 of the rectangular pipe 34 incorporating the optical sensor has a size that is twice that of the optical axis, that is, 2θ, so that no extraneous disturbance light is incident. The structure is as follows.
[0015]
【The invention's effect】
As described above, the present invention has a structure in which the optical sensor is provided on the upper portion of the support and the up-and-down filler is rotatably mounted. A sensor that can be discriminated by a single sensor and that has a built-in optical sensor in a rectangular pipe reduces the malfunction caused by disturbance light and improves the reliability.
[Brief description of the drawings]
FIG. 1 shows an overall system configuration diagram of the present invention.
FIG. 2 is a perspective view of a stacker crane used in the present invention.
FIG. 3 is a side view showing the overall arrangement of the optical sensor of the present invention.
FIG. 4 is a perspective view showing an attachment state of an embodiment of the present invention.
FIG. 5 is a cross-sectional view showing the arrangement of optical sensors on a rectangular pipe.

Claims (1)

立体棚の各列の間を走行するスタッカクレ−ンの荷台の四隅に支柱をそれぞれ立設し、該荷台への荷の出し入れを行う方向で回動する断面コ型状のフイラ−を上記支柱のそれぞれに設け、該フイラ−の上面に所定の長さのパイプ内に、上記スタッカクレ−ンの走行方向側で互いに向かい合う支柱の一方側に投光センサ−を、他方側に受光センサ−を収納固定し、上記フイラ−が荷に接触して回動して受光が遮断されたとき荷高さや荷姿のずれを検出する荷姿センサ−。Columns with a U-shaped cross-section are installed at the four corners of the loading platform of the stacker crane that travels between the rows of the three-dimensional shelf, and rotates in the direction of loading and unloading the loading platform. A light emitting sensor is housed and fixed on one side of the struts facing each other in the running direction side of the stacker crane in a pipe of a predetermined length provided on the upper surface of the filler. And a load state sensor for detecting a load height or a load state shift when the lighter is turned by contact with the load and the received light is cut off.
JP05994697A 1997-02-26 1997-02-26 Packing sensor Expired - Fee Related JP3635605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05994697A JP3635605B2 (en) 1997-02-26 1997-02-26 Packing sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05994697A JP3635605B2 (en) 1997-02-26 1997-02-26 Packing sensor

Publications (2)

Publication Number Publication Date
JPH10236606A JPH10236606A (en) 1998-09-08
JP3635605B2 true JP3635605B2 (en) 2005-04-06

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Family Applications (1)

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Country Status (1)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109231084A (en) * 2018-10-29 2019-01-18 太原市奥特莱物流科技有限公司 A kind of vertical library piler bending loading platform

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