SEQUENTIAL CONTROL SYSTEM FOR A LIFT TRUCK
A control system for directing hydraulic fluid to selected cylinders on a lift truck to perform selective ones of a plurality of power truck functions, such as raising and lowering the lift forks on the truck mast, tilting the lift forks with respect to the truck mast, and extending the lift forks a...
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Main Author | |
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Format | Patent |
Language | English French |
Published |
16.06.1981
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Subjects | |
Online Access | Get full text |
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Abstract | A control system for directing hydraulic fluid to selected cylinders on a lift truck to perform selective ones of a plurality of power truck functions, such as raising and lowering the lift forks on the truck mast, tilting the lift forks with respect to the truck mast, and extending the lift forks away from the truck mast, includes a control lever mounted on the truck control panel, having upper and lower control positions and a neutral position therebetween. A function control switch includes a manually actuable switch button on the controlled lever. A counter means is responsive to the function control switch to cycle sequentially through a plurality to actuation of the function control switch means. Means are provided responsive to the control lever and the counter means for supplying hydraulic fluid to selective ones of the cylinders under control of the control lever with selection of cylinders being determined by the count state of the counter means. The direction of flow of hydraulic fluid is determined by the position of the control lever. |
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AbstractList | A control system for directing hydraulic fluid to selected cylinders on a lift truck to perform selective ones of a plurality of power truck functions, such as raising and lowering the lift forks on the truck mast, tilting the lift forks with respect to the truck mast, and extending the lift forks away from the truck mast, includes a control lever mounted on the truck control panel, having upper and lower control positions and a neutral position therebetween. A function control switch includes a manually actuable switch button on the controlled lever. A counter means is responsive to the function control switch to cycle sequentially through a plurality to actuation of the function control switch means. Means are provided responsive to the control lever and the counter means for supplying hydraulic fluid to selective ones of the cylinders under control of the control lever with selection of cylinders being determined by the count state of the counter means. The direction of flow of hydraulic fluid is determined by the position of the control lever. |
Author | KOEPER, JOHN I |
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Discipline | Medicine Chemistry Sciences Physics |
DocumentTitleAlternate | SYSTEME DE COMMANDE SEQUENTIELLE POUR CHARIOT ELEVATEUR |
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PublicationDateYYYYMMDD | 1981-06-16 |
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PublicationDecade | 1980 |
PublicationYear | 1981 |
RelatedCompanies | CROWN CONTROLS CORPORATION |
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Snippet | A control system for directing hydraulic fluid to selected cylinders on a lift truck to perform selective ones of a plurality of power truck functions, such as... |
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SubjectTerms | CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HAULING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD LIFTING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS REGULATING TRANSPORTING |
Title | SEQUENTIAL CONTROL SYSTEM FOR A LIFT TRUCK |
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