PROBLEM TO BE SOLVED: To provide a lifting device of a cargo handling vehicle provided with lifting height detection means capable of a lifting height of a cargo handling tool without using an encoder.SOLUTION: A lifting device 4 includes a cargo handling tool 5, a driving source for lifting the cargo handling tool 5, a guide member 7 provided so as to extend in the lifting direction of the cargo handling tool 5 to guide the cargo handling tool 5 in the lifting direction when the cargo handling tool 5 is lifted by the driving source, and lifting height detection means for detecting a lifting height of the cargo handling tool 5. The lifting height detection means includes a feature part 16 provided on a peripheral surface of the guide member 7 over the lifting direction of a fork 5, a camera 17 provided in the cargo handling tool 5 to be turned to a peripheral surface provided with the feature part 16 of the guide member 7, an image processing part for performing prescribed image processing of image data generated by the camera 17 to detect the feature part 16, and a lifting height calculation part for calculating the lifting height of the cargo handling tool 5 on the basis of the feature part 16 detected by the image processing part.SELECTED DRAWING: Figure 1
【課題】エンコーダを用いずに荷役具の揚高を検出できる揚高検出手段を備えた荷役車両の昇降装置を提供する。【解決手段】昇降装置4は、荷役具5と、荷役具5を昇降させるための駆動源と、荷役具5の昇降方向にのびるように設けられ、荷役具5が駆動源によって昇降される際に荷役具5を昇降方向に案内するガイド部材7と、荷役具5の揚高を検出する揚高検出手段と、を備える。揚高検出手段は、ガイド部材7の周面にフォーク5の昇降方向に渡って設けられた特徴部16と、荷役具5に設けられ、ガイド部材7の特徴部16が設けられた周面に向くカメラ17と、カメラ17によって生成された画像データに対して所定の画像処理をして特徴部16を検出する画像処理部と、画像処理部によって検出された特徴部16に基づいて荷役具5の揚高を演算する揚高演算部と、を備える。【選択図】図1
LIFTING DEVICE OF CARGO HANDLING VEHICLE, AND FORK LIFT PROVIDED WITH LIFTING DEVICE
荷役車両の昇降装置、及び、昇降装置を備えるフォークリフト
2017-06-29
Patent
Elektronische Ressource
Japanisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
Lifting appliance of AVG fork lift truck and fork lift truck provided with lifting appliance
Europäisches Patentamt | 2021
|