Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
  • B66C13/00—Other constructional features or details
  • B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
  • B66C13/54—Operator's stands or cabins
  • B66C13/56—Arrangements of handles or pedals
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
  • E02F9/20—Drives; Control devices
  • E02F9/2004—Control mechanisms, e.g. control levers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
  • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
  • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
  • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
  • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
  • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
  • F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
  • G05G11/00—Manually-actuated control mechanisms provided with two or more controlling members co-operating with one single controlled member

Definitions

• the present invention relates to a duplicate layout of control lever sets of a distributor of hydraulic equipment for trucks, particularly hydraulic cranes.
• control lever set is usually duplicated on both sides of the truck, so as to allow to control the crane or the like even when one side of said truck cannot be accessed.
• FR-2,523,544 already discloses a duplicate layout of axial sets of control levers in which the levers of one set are kinematically connected to the corresponding levers of the other set by means of a bundle of transmission rods which physically cross each other at the central longitudinal plane of the truck.
• the layout according to the invention is characterized in that a direct control set is provided with levers whose respective arms are axially aligned with first forks for the articulation of the ends of corresponding transmission rods and the other duplicate control set is provided with levers whose arms are axially offset with respect to second forks for the articulation of the other ends of said transmission rods, each one of said axially offset arms being connected to said corresponding second forks by means of its own arm portion which is folded substantially at right angles and extends parallel to the axis of the pivoting shaft of the second articulation forks.
• Figure 1 is an exploded perspective view of the duplicate layout of the control sets of a distributor, arranged on either side of a truck or the like, according to the present invention
• Figure la is a detail view of the pivoting system of the transmission rods of the second forks;
• Figure 2 is an enlarged-scale view of a detail of Figure 1. Ways of carrying out the invention
• reference numeral 10 generally designates the hydraulic distributor that activates the different functions Fa-Fb-Fc-Fd-Fe of a hydraulic unit, typically a crane with telescoping arms (not shown), which is installed on a truck or the like.
• the distributor 10 is controlled by similar axial sets 11-12, each provided with respective levers HOa-llOe and 120a-120e, which are arranged on either side of the truck.
• the levers of each set whose number is equal to the number of functions to be controlled, are arranged side by side along a direction which is parallel to the longitudinal axis of the truck and have a progressive sequential layout, indicated by a succession of letters of the alphabet which are, for example, ordered from left to right, for both sets 11-12, so that the operator encounters the same sequential distribution both when he works on the set 11 and when he works on the set 12.
• a direct control set for example the set 11, is provided with a bundle of levers HOa-e, each of which has a respective straight arm which is axially aligned with a first set of forks 13'a-e for the articulation of the ends of corresponding rods 14a-e for transmitting the actuation to the other duplicate control set 12.
• Said duplicate control set is instead provided with respective levers 120a-e in which the respective arm is axially offset with respect to the forks 13"a-e of a second set which are designed to articulate the other ends of the actuation transmission rods 14a-e.
• each lever such as 120a-e is connected to the corresponding transmission fork 13"a-e by means of a portion 121a-e of its own arm which is folded substantially at right angles and lies parallel to the axis of the shaft 15 for the pivoting of the set of forks 13"a-e.
• the intended reversal of the controls is obtained which allows the corresponding levers of the two sets, the direct one and the duplicate one 11-12, such as for example the lever 110a and the lever 120a, to act on the same valve of the distributor 10.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Fluid Mechanics (AREA)
• Structural Engineering (AREA)
• Civil Engineering (AREA)
• Mining & Mineral Resources (AREA)
• General Physics & Mathematics (AREA)
• Automation & Control Theory (AREA)
• Forklifts And Lifting Vehicles (AREA)
• Control And Safety Of Cranes (AREA)
• Jib Cranes (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=11416415

Family Applications (1)

Country Status (7)

Citations (4)

• 1998
  • 1998-06-16 IT IT1998TO000109U patent/IT245853Y1/it active
• 1999
  • 1999-06-09 EP EP99929159A patent/EP1086039B1/en not_active Expired - Lifetime
  • 1999-06-09 AU AU46068/99A patent/AU4606899A/en not_active Abandoned
  • 1999-06-09 ES ES99929159T patent/ES2186370T3/es not_active Expired - Lifetime
  • 1999-06-09 WO PCT/EP1999/003969 patent/WO1999065815A1/en active IP Right Grant
  • 1999-06-09 AT AT99929159T patent/ATE226918T1/de active
  • 1999-06-09 DE DE69903725T patent/DE69903725T2/de not_active Expired - Lifetime

Patent Citations (4)

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