US3800615A - Single lever control mechanism - Google Patents

Single lever control mechanism Download PDF

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Publication number
US3800615A
US3800615A US3800615DA US3800615A US 3800615 A US3800615 A US 3800615A US 3800615D A US3800615D A US 3800615DA US 3800615 A US3800615 A US 3800615A
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United States
Prior art keywords
main control
control member
supporting
mechanism according
ball
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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.)
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English (en)
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J Pilch
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Ware Machine Works Inc
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Ware Machine Works Inc
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Classifications

    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04703—Mounting of controlling member
    • G05G2009/04707—Mounting of controlling member with ball joint
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04703—Mounting of controlling member
    • G05G2009/04714—Mounting of controlling member with orthogonal axes
    • G05G2009/04718—Mounting of controlling member with orthogonal axes with cardan or gimbal type joint
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87056—With selective motion for plural valve actuator
    • Y10T137/87072—Rotation about either of two pivotal axes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20201—Control moves in two planes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/2063—Stops

Definitions

  • ABSTRACT A single lever control mechanism for operating a plurality of control elements which includes a base member, a main control member supported for revolving movement relative to the base member about a member which is spaced from the base member and means for preventing rotation of the main control member about an axis which coincides substantially with the center of said member about which the main control member is revolvable and is substantially normal to the base member, the main control member being operatively associated with at least two control elements which are spaced apart and operatively connected with operators such as moveable valve elements.
  • guide means which functions in conjunction with the configuration of the main control member and the revolving movement of the main control member to automatically, progressively, simultaneously and proportionately decrease the flow of the actuating medium through one operator as the flow of actuating medium through another operator is increased and vice versa.
  • the guide means also arrests tilting movements of the main control member to prevent the exertion of excessive forces upon the operators by actuation of the single lever.
  • PATENTED APR 2 I974 SHEET 07 0F 12 PATENTEUAPR '2 I974 sum as UF 12 Y GI 123m 20mm PATENIEDAPR 2 I974 sum 0: 1 or 112 FIG. I5
  • Clingerman control mechanisms is that there are several pivotal interconnections, each of which must have w some tolerance and consequently there is considerable stances sensitive to slight adjustments and must be moved in a very accurate manner, this looseness or play in the valve control mechanisms often creates a problem.
  • Miller utilizes exteriorly screw-threaded bolts positioned in interiorly screwthreaded passages so that during movement of the valve control elements about the pivotal connections, it is necessary for the control elements to traverse the screw-threads of the bolts and this creates problems of friction and wear of the screw-threads as well as relatively high costs of fabrication of the screw-threaded elements and of construction and assembly of the control mechanism.
  • One object of this invention is to provide a new and improved single lever control mechanism which may be used to actuate a plurality of operators for a plurality of devices such as hydraulic motors.
  • Another object is to provide such a control mechanism which may be easily and accurately controlled by the operator of a machine by manual movements of the single lever.
  • a further object is to provide such a control mechanism which stands up in prolonged use and does not require frequent repairs or replacement of parts.
  • Still another object is to provide such a control mechanism which is economical to manufacture and to install on the machine which is to be controlled by the plurality of operators.
  • Another object is to provide such a control mechaniism which, upon actuation of the lever by the operator of the machine, automatically and selectively controls the increase and/or decrease of the flow of the actuating medium through a plurality of operators to and from a plurality of devices such as hydraulic motors for example.
  • Another object is to provide such a control mechanism which has only one main control member so that by one motion of the single lever one or a plurality of functions may be performed by the operator.
  • a further object is to provide such a control mechanism with guide means which functions in conjunction with the configuration of the main control member and 3 Another object is to provide such a control mechanism with guide means for stopping the tilting movements of the main control member about the means for supporting it for revolving movement to prevent the exertion of excessive forces upon the operators by actuation of the single lever.
  • Yet another object is to provide such a control mechanism with means for relocating the position of the single control lever with respect to the main control member.
  • Another object is to provide such a control mechanism with means for relocating at least one of the control elements relative to the main control member so that, for example, the operation of the swing left and swing right valve spools in response to movement of the single control lever may be reversed.
  • control mechanism which includes a main control member, means for supporting the main control member for revolving movement about a member which is spacedfrom the base member, means for preventing rotation of the main control member about an axis which coincides substantially with the center of the member about which the main control member is revolvable and is substantially normal to the base member, at least two spaced apart control elements, means for pivotally securing corresponding ends of said control elements to the main control member at localities which are spaced from each other and from the means for supporting the main control member, means for connecting the opposite ends of the control elements to operators, and a control lever mounted on the main control member for revolving the main control member about the means for supporting the main control member, thereby to actuate the control elements and the re spective operators which are connected to them.
  • means is also provided for adjusting the spacing of the means for supporting the main control member relative to the base member.
  • the means for supporting the main control member for revolving movement comprises a ball-like type of universal joint, the universal joint being associated with an end of a support member and with the main control member.
  • each of the means for pivotally securing the spaced apart control elements to the main control member comprises a ball-like type of universal joint and, the centers of the ball-like type universal joints are located substantially in a single plane which extends through the centers of said ball-like type universal joints and through the center of the ball-like universal joint which constitutes the means for supporting the main control member for revolving movement.
  • each housing comprises moveable means for adjusting the fit between the ball-like member of the universal joint and the bearings.
  • the ball-like type of universal joints are located between the main control member and the base member.
  • a pin type universal joint instead of a ball-like type is substituted for one or more of the aforesaid ball-like type universal joints.
  • each control element includes means for adjusting its length.
  • Each control element may comprise a flexible cable, a rigid link or any equivalent connecting element.
  • the means for preventing rotation of the main control member may comprise a slotted guide member attached to the base member and a member which projects laterally from the main control member into the slot of the guide member, the projecting member moving longitudinally of the slot as the main control member is revolved.
  • Other means may be used including that shown in FIGS. 9 and 10 of the drawings.
  • guide means which functions in conjunction with the configuration of the main control member and the revolving movements of the main control member to automatically, progressively, simultaneously and proportionately decrease the flow of the actuating medium through one operator as the flow of actuating medium through the other operator is increased and vice versa.
  • the guide means also functions to stop the tilting movements of the main control member about the means for supporting it for revolving movement to prevent the exertion of excessive forces upon the operators by actuation of the single lever.
  • means is provided for relocating the position of the single control lever with respect to the main control member.
  • means is provided for relocating at least one of the control elements relative to the main control member so that, for example, the operation of the swing left and swing right valve spools in response to movement of the single control lever may be reversed.
  • the main control member may include substantially arcuate peripheral edge portions of either 360 or of about 180 and the guide means may include a portion of the base member such as its upper plane surface for engagement with said arcuate peripheral edge portions of the main control member when the main control member is revolved.
  • the base member may also include one or more raised portions for engagement with the arcuate peripheral portions of the main control member to stop or limit tilting movements of the main control member towards the base member at the raised portions and the heights of the raised portions may be adjustable.
  • the main control member may also include nonarcuate peripheralportions such as the configurations shown in FIGS. 15 to 17 of the drawings to obtain other controls of actuation of the operators.
  • the guide means may comprise a member mounted above the main control member which may be an arcuate member of 360 or an arcuate member of about 180 as shown in FIGS. ll, 18 and 19 of the drawings.
  • These guide means may also carry position indicating indicia such as BOOM DOWN, etc.
  • the guide means may also comprise a member which is mounted between the base member and the main control member as shown in FIG. 12 of the drawings which may also carry position indicating indicia.
  • the guide means may also comprise contoured or raised portions of the surfaces of the base member and of the other guide means described above which contact the arcuate peripheral edge of the main control member during its revolving movements, likewise the guide means may comprise contoured or raised portions of the arcuate peripheral edges of the main control member for contact with plane surface of the guide means during revolving movements of the main control member.
  • the control mechanism may also comprise an indicia carrying ring which is located between the base member and the main control member when the main control member is in neutral position but through the central opening of which the periphery of the main control member may be moved when it is revolved.
  • FIG. 1 is a side elevational view of a trencher or backhoe which includes a single lever control mechanism embodying this invention
  • FIG. 2 is a slightly enlarged top plan view of the apparatus shown in FIG. 1 with parts broken away;
  • FIG. 3 is a fragmentary side elevational view similar to FIG. 1, but on an enlarged scale of certain parts of the means for swinging the boom laterally relative to the support; 1
  • FIG. 4 is a top plan view of one embodiment of a single lever control mechanism embodying this invention.
  • FIG. 5 is a section taken on the line 5- 5 of FIG. 4, showing the control inits neutral position;
  • FIG. 5A is a reduced section. taken on the line 5A5A of FIG. 5;
  • FIG. 6 is a section similar to FIG. 5, but with the main control member actuated with the numeral 3 lowered to BOOM DOWN position;
  • FIG. 7 is a section similar to FIG. 5, but with the main control member actuated with numeral 7 to BOOM UP position;
  • FIG. 8 is a section on the line 8--8 of FIG. 4 with the numeral 2 of the main control member actuated to "SWING LEFT-BOOM DOWN" position to splitthe flow of the actuating fluid equally between SWING LEFT and BOOM .DOWN operators;
  • FIG. 9 is a top plan view of another embodiment of single lever control mechanism showing a modified means for preventing rotation of the main control member;
  • FIG. 10 is a side elevational view of the embodiment shown in FIG. 9;
  • FIG. 11 is a side elevational view, partly broken away and shown in section of a control mechanism embodying a modified guide means and position indicating ring, the main control member being shown in full lines in its neutral position and in dot-dash lines when actuated to engage the guide and stop means;
  • FIG. 12 is a side elevational view partly broken away and shown in section of a control mechanism embodying another modified guide means and position indicating ring with the main control member shown in full lines in its neutral position and in dot-dash lines when actuated to engage the guide and stop means;
  • FIG. 13 is a diagramatic view showng two valve spools, the housing being shown in section, and flexible cables connecting the valve spools to the spaced control elements which are actuated by the main control member, the main control member being in a position 6 to equally split the flow of fluid between SWING LEFT and BOOM DOWN operators or valve spools;
  • FIG. 14 is a view similar to FIG. 13 but with the main control member actuated to BOOM DOWN" position;
  • FIG. 15 is a top plan view of a modified main control member
  • FIG. 16 is a top plan view of another modified main control member
  • FIG. 17 is a top plan view of still another modified main control member
  • FIG. 18 is a top plan view of a modified control mechanism embodying the invention.
  • FIG. 19 is a section taken on the line I9l9 of FIG. 18 showing the main control member in neutral position;
  • FIG. 20 is a section like FIG. 5, but showing the use of pin-type universal joints instead of the ball-like type universal joints shown in FIG. 5;
  • FIG. 21 in a view like FIG. 13, but showing links connecting the valve spools to the spaced control elements instead of the flexible cables, shown in other views;
  • FIG. 22 is a perspective view of the pin type universal joint shown in FIG. 20;
  • FIG. 23 is a section taken on the line'23-23 of FIG.
  • universal joint as used herein includes a ball type universal joint which operates in a socket as shown in FIGS. 5 to 14, 18, 19 and 21 of the drawings, a pin type universal joint which comprises a plurality of pins as shown in FIGS. 20 and 22 of the drawings and a ball-type universal joint which includes grooves as shown in FIGS. 23 to 26.
  • FIGS. 1 to 3 of the drawings a backhoe or tren- I cher is shown in which a bucket 1 is pivotally connected to the remote end of a dipperstick 2 which, in turn, is'pivotally connected to the remote end of a boom 3.
  • the backhoe comprises a first support 4 to which a second support 5 is pivotally connected by the substantially vertical pivots 6 and 7.
  • the support 4 is supported in a fixed position in relation to the ground by the stabilizers 8 and 9 which arev
  • the first support 4 is detachably connected to a tractor mounting or platform 12 by means of the hitch elements 13 and 14 of the first support.
  • Each hydraulic motor comprises a double acting piston or ram and cylinder which is actuated by an hydraulic system, the hydraulic power for which is provided by the tractor as is well known in the art.
  • the second support and the boom 3 which is pivotally attached thereto at 3a are moved or swung in a substantially lateral or horizontal direction relative to the first support 4 by a pair of hydraulic motors 15 and 16 (FIG. 2), which are pivotally connected at their ends to the first support 4 by pivots 17a and 18a and at their other ends to the second support 5 by means of the plate 19 which is welded to the second support and by the two link chains 20 and 21 which are associated with the piston rods 15a, 16a of the hydraulic motors l5 and 16 respectively.
  • FIGS. 1 The second support and the boom 3 which is pivotally attached thereto at 3a
  • the chain 20 comprises a link 200 which is pivotally connected at 19a to the plate 19 and a pair of links 20b which are pivotally connected at 20c to the link 20a and are pivotally connected at 200' to a block on the end of the piston rod 15a.
  • the chain 21 comprises similar links and pivotal connections for actuation by the piston rod 16a. Stops 19b (FIG. 2) are provided on the plate 19.
  • the lateral swinging of the boom may also be accomplished by a single rotary type hydraulic motor cylinder as disclosed at 21 in said McCanse patent.
  • the boom is moved vertically up and down about the pivotal connection 3a by the hydraulic motor 23 which is pivotally attached to the second support at 23a and to the boom at 23b.
  • the single lever control mechanism disclosed herein functions to control the flow of actuating medium, such as oil, through operators or valve spools to and from the hydraulic motors 15, I6 and 23 thereby to swing the boom laterally left or right and to move the boom vertically, either individually or simultaneously.
  • actuating medium such as oil
  • the dipperstick 2 is moved about the pivotal connection 3b by the hydraulic motor 25 which is pivotally attached to the boom at 25a and to the member 26 at 25b, the member 26 being attached to the dipperstock 2.
  • the bucket l is pivotally attached to the dipperstick 2 at 2a and it is moved about said pivot by the hydraulic motor 28 which is pivotally connected at 28a to the member 26 and at 28b to the linkage 29 as is well known in the art.
  • a second single lever control mechanism similar to the control mechanism disclosed herein may be added to control the flow of actuating medium through operators or valve spools to and from the hydraulic motors 25 and 26 thereby to move the dipperstick and the bucket about their pivotal connections to the boom and dipperstick either individually or simultaneously.
  • the control mechanism comprises the base member 30 (FIG. 5) which is'supported by a structure 31 (FIG. .1) whichis attached to the first support 4.
  • the seat 32 is mounted on the structure 31 and ispositioned where the person who is operating the backhoe may grasp the knob 33a of the lever 33.
  • the lower end of the lever 33 is exteriorly threaded, is received in an interiorly threaded passage (not shown) in the main control member 35 and is held in adjusted position by the wing nut 34 (FIG. 8).
  • a second interiorly threaded passage 36 may be provided in the central element 40 so that, if desired, the control lever may be placed therein rather than in the first interiorly threaded passage as shown in the drawings.
  • the main control member 35 is disc-like when viewed from the top and the bevelled portion 35a of its periphery may be provided with numerals from I thru 8 as shown in FIG. 4 to indicate certain spaced points on the arcuate periphery of the main control member.
  • the main control member 35 is supported by the ball-like member 38 which is integral with the member 39.
  • the member 39 is exteriorly threaded and extends through an interiorly threaded passage in the base member 30. The spacing of the ball-like member relative to the base member may be adjusted by the interiorly threaded lock nuts 41 (FIG. 5).
  • the ball-like member 38 is received in a hearing or socket formed in the main control member and the fit between the ball-like member and the sides of the bearing may be adjusted by the element 40 which has an exteriorly threaded portion 40a received in an interiorly threaded passage in the main control member.
  • Spaced orifices 40b are provided in the head of the element 40 to receive a tool for use in rotating 40 so as to accurately position it relative to the main control member and the ball-like member.
  • Element 40 is locked in adjusted position by set screw 400. It will be noted that the lower end of the element 40v is concave and that it forms the upper part of the housing for the ball-like member.
  • the ball-like member 38 and its housing are included in the term universal joint" as used in this specification.
  • control element 43 is connected to the operator or valve spool which controls the hydraulic motors for swinging the boom laterally and the control element 42 is connected to the operator which controls the hydraulic motor for moving the boom upwardly and downwardly as explained in more detail below.
  • control elements 42 and 43 are provided with ball-like members 42a and 43a and adjustment members 42b and 43b including set screws 42i and 43i which are similar to the above described elements 38, 40 and 400.
  • the centers of the ball-like members 38, 42a and 430 are located substantially in a single plane (show in dotdash) which extends laterally through the main control member.
  • a substantially horizontal plate member 45 is secured to the structure 31.
  • the upper ends of the elements 420 and 430 are exteriorly threaded and these exteriorly threaded ends are received in interiorly threaded sockets in the enlarged portions 42d and 43d of the control elements.
  • the operative length of the elements 42c and 43c may be adjusted by rotating the elements 42d and 43d relative to the elements 420 and 430, the holes 42h and 43h serving to receive a tool for rotating them. Then they may be locked in their adjusted positions by the lock nuts 42e and 43e.
  • the elements 42c and 430 are slidable in passages in the elements 42]" and 43f (FIG. 13) and their lower ends are attached to the ends of flexible cables 42g and 43g.
  • the other ends of the flexible cables are attached to the boom lift valve spool 47 and to the boom swing valve spool 48 respectively.
  • These valve spools are slidable longitudinally in the valve spool housing 49 as is well known in the art.
  • An interiorly threaded passage 100 similar to the interiorly threaded passage 40a may be provided in the main control member opposite the element 42b and a corresponding opening 101 in the base member 30 may be provided.
  • This passage and opening permit moving the elements 42 through 421' from their locations shown in FIGS. 4 and 5 to the passage 100 and opening 101 so that the action of the lever 33 reverses the operation of the BOOM UP" and BOOM DOWN valve spools if the operator so desires.
  • the threaded passage to receive the handle of the lever 33 may be located where said threaded passage 100 is located and the passage 100 may be located where the threaded passage to receive the lever 33 is located in FIG. 4 with the opening 101 relocated beneath the passage 100.
  • the control mechanism includes means for preventing rotation of the main control member 35'about an axis which coincides substantially with the center of the ball-like member 38 and is substantially normal to the surface of the base member 30. In the embodiments of these views of the drawings, this would be the longitudinal axis of the member 39.
  • this means comprises the U-shaped member 53 which is secured to the base member 30.
  • This U-shaped member forms a longitudinal slot 530(FIG. 5A).
  • the pin 54 secured to the main control member 35 projects later.- ally from the control member into this longitudinal slot. Consequently coaction between the pin and the sides of the slot prevents rotation of the main control member about said axis when the knob of the single control lever 33 is actuated.
  • the control lever may be actuated to tilt the main control member about the center of the ball-like member 38 so that the main control member moves from the neutral position shown in FIG. 5, for example, to the BOOM DOWN position of FIG. 6 and to the BOOM UP position of FIG. 7.
  • Other positions to'which the main control member may be titled andr'evolved will be described later in the specification.
  • FIGS. 9 Another embodiment of means for preventing rotation of the main control member is shown in FIGS. 9 and in which the member 56 projects laterally outwardly from the periphery of the main control member 35 and is provided with a ball-like member 56a at its end.
  • the member 57 projects upwardly from the base member and is provided with a ball-like member 570.
  • These ball-like members are received in housings in the members 56b and 57b respectively which are attached at the ends of the link member 58.
  • the members 56 and 57 are exteriorly threaded so' that the spacings of the ball-like members 56a and 57a from the main control member and the base member 30 may be adjusted.
  • an indicating ring 60 (which is optional) is mounted between the base member 30 and the main control member 35 by four collars 61 and four screws 62 which extend through spaced passages in the ring into interiorly threaded sockets in the base plate 30.
  • This ring contains indicia which are opposite the indicating numerals l to 8 of the bevelled portion 35a of the main control member such as SWING LEFT opposite 1, SWING LEFT-BOOM DOWN opposite 2, BOOM DOWN opposite 3, etc. as shown in FIG. 4.
  • the main control member When it is desired to move the boom upwardly, the main control member is titled about the ball-like member 38 in a direction so that the numeral 7 of the control member is moved downwardly towards the BOOM UP indication. This causes the control element 42 to actuate. the operator 47 so that oil flows from the pump to the port of the boom lift hydraulic motor which causes the boom to be moved upwardly and to flow outwardly from the other port of the lift hydraulic motor to the tank.
  • the upper ends of the exteriorly threaded screws 65 are flush with the plane upper surface of the base member 30 and that they are held in such positions by the locknuts 65a so that the downward tilting movements of the main control member are arrested or stopped by engagement of the lower actuate peripheral edge 35c of the main control member with the ends of said screws 65. If it is desired to limit the amount of oil which is permitted to flowto the operative part of the hydraulic lift motor, one or both of these screws may be adjusted upwardly thus limiting the downward movement of the control element 42 and the longitudinal movements of the cable 423 and of the operator 47.
  • screws 65 are optional and may be omitted, in which event, the downward movementsv of the main control member are limited or stopped by the upper plane surface of the base 30.
  • Such guide or stop means for the tilting movement of the main control member is important because it prevents the exertion of loads or forces by the cables 42g, 43g, or by equivalent links which will be described below, upon the valve spools 47, 48, which are greater than required to extend or retract the valve spools so that the valve spools, cables, links and other associated members are not subjected to excessive wallowing or wear.
  • the main control member When it is desired to swing the boom to the left, the main control member is titled about the ball-like member 38 in a direction so that the numeral 1 of the main control member is moved downwardly towards the SWING LEFT indication; This causes the control element 43 to actuate the operator or valve spool 48 so that oil flows from the pump to the port of the hydraulic motor which causes the boom to be swung to the left and to flow outwardly from the other port of the hydraulic motor to the tank. Similarly when the main control member is titled so that the numeral 5 is moved downwardly towards the SWING RIGHT indication, the operator 48 is actuated so that oil flows from the pump to the port of the hydraulic motor which causes the boom to be swung to the right. As shown in FIG. 4, limiting screws 65 may be provided in the base member opposite each of the indicating numerals so that the longitudinal movements of the operator 48 for the swing hydraulic motor may be adjusted in the same manner as the movements of the operator 47.
  • the main control member When it is desired to swing the boom laterally to the left and simultaneously move the boom downwardly at substantially the same speeds, the main control member is tilted about the ball-like member 38 in a direction .50 that the number 2 is moved downwardly towards the SWING LEFT-BOOM DOWN indication on the ring until its arcuate periphery 35c engages the top of the limiting screw 65 which is beneath the numeral 2 position or the surface of the base 30 if the limiting screws are omitted.
  • This causes the control elements 42, 43 and the operators 47, 48 to be moved to the positions shown in FIGS. 8 and 13 so that the flow of oil from the pump is split equally between the port for the hydraulic motor which causes the boom to swing left and the port of the hydraulic motor which causes the boom to move downwardly.
  • the ports of the hydraulic motors which permit oil to flow from the opposite ends of the cylinders of said hydraulic motors to the tank are opened by equal amounts.
  • the main'control member When it is desired to swing the boom laterally to the left faster than the boom is moved downwardly, the main'control member is tilted in a direction so that its arcuate peripheral edge 35c makes contact with the surface of the base 30 at a point between the SWING LEFT indication and the BOOM DOWN indication but closer to the SWING LEFT indication than to the BOOM DOWN indication. Then, if the operator desires to increase the speed of the swing left motion and decrease the boom lowering motion, it is accomplished by revolving the main control member about the ball like member 38 so that the Contact point of the peripheral edge 35c of the main control member and the surface of the base 30' is moved to a location closer to the SWING LEFT indication.
  • the upper surface of the base 30 acts as a table or guide means upon which the arcuate peripheral edge 350 of the main control member revolves or rolls as the operator manually revolves the main control member about the ball-like member 38 to increase the flow of oil through the hydraulic motor which moves the boom downwardly.
  • This automatically, simultaneously, proportionately and progressively increases the flow of oil to the hydraulic motor which swings the boom to the left. Accordingly, such increases and decreases of the flow of oil to the hydraulic motors is not dependent upon the operators guesswork or judgment but they are performed automatically by the control mechanism.
  • the main control member is tilted about the ball-like member 38 in a direction so that its arcuate peripheral edge makes contact with the surface of the base at a point between the BOOM DOWN" indication and the SWING LEFT indication but closer to the BOOM DOWN" indication. Then if the operator desires to increase the speed of the boom down motion the main control member is revolved about the ball-like member 38 so that the contact point between the peripheral edge of the main control member and the surface of the base is moved to a location closer to the BOOM DOWN" indication.
  • the lever 33 is held in that position by the operator of the backhoe until the desired movements of the boom have been completed.
  • the ring 72 is mounted above the main control member 35 by a plurality of spaced posts or separators 73 which extend between it and the base member 30. This ring may also be secured to the top of the U-shaped member 53 which is similar in construction to the U-shaped member 53 shown in FIG. 5A of the drawings.
  • the ring 72 serves'as an indicating ring similar to the ring and also as guide means similar to the upper plane surface of the base member 30
  • the arcuate upper edge 35d of the periphery of the main control member 35 contacts the lower plane surface of the ring 72 when the main control member is tilted about the center of the ball-like member 38. It also is in rolling contact with that plane surface when the main control member is revolved about the ball-like member 38.
  • FIG. 11 functions in the same way as the embodiment of FIGS. 1 to l0, l3 and 14.
  • the main control member 35 is provided with a portion 35b which is of reduced diameter.
  • the ring 74 is similar to the ring 60 of the first embodiment but it is of reduced diameter and it functions not only to receive the indicia such as SWING LEFT, SWING LEFT-BOOM DOWN, BOOM DOWN," etc., but also as guide means for contacting the outer arcuate lower peripheral edge 3500f the main control member (as shown in dot-dash lines) to stop or limit the tilting movements of the main control member and to guide the main control member during revolving movements thereof about theball-like member 38.
  • FIG. 12 functions in the same manner as the embodiment of FIGS. 1 to l0, l3 and 14.
  • FIGS. 15 and 16 member is tilted downwardly about the ball-like member 38 so that the numeral 1 is adjacent to the SWING LEFT" indication on the ring 60 (FIG. 4) and when the numeral 3 is moved downwardlyso that the numeral 3 is adjacent to the BOOM DOWN indication on the ring 60 there are full flows of the oil thru the respective operators for the hydraulic motors to cause full swing left and full boom downmovements of the boom respectively.
  • FIG. 16 is similar to the' embodiment of FIG. except that the arcuate portions 80c and 80f are shorter than the arcuate portions 80a and 80b and the straight portions 80g and 80h are longer than the straight portions 80c and 7 80d respectively.
  • FIGS. 4 to 11 which extends for 360.
  • the dot-dash line 801' in FIG. 15 shows how the straight part 800 of the main control member may be modified as desired.
  • the main control member 81 is provided with arcuate peripheral portions 81a and 81b which are substantially concentric with the center of the ball-like member 38 when viewed from the top, and the ends of these arcuate portions are connected by portions which terminate in the points 81c and 81d.
  • the split of flow of oil thru the operators to the hydraulic motors is reduced between SWING LEFT and BOOM DOWN positions (numerals l and 3) and between the SWING RIGHT" and BOOM UP positions (numerals 5 and 7) because the lower edges of the points 810 and 81d come into contact with the upper plane surface of the base member in those positions and reduce the amounts of the longitudinal movements of the operators 47 and 48.
  • the supplemental combined, guide and indicating means 91 comprises, a top substantially semicircular member 91a, a substantially, verticalflange 91b and an outwardly extending substantially horizontal flange 910 which is attached to the base member 30.
  • a slot 53a is provided in the vertical flange 91b and it receives the pin 54 so this slot and pin function to prevent rotation of the main control member 90 about the axis of the member 39 in the same manner as the pin 54 and slot 53a (FIG. 5A) of the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Mechanical Control Devices (AREA)
US3800615D 1972-06-14 1972-06-14 Single lever control mechanism Expired - Lifetime US3800615A (en)

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US26255072A 1972-06-14 1972-06-14

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012014A (en) * 1975-09-11 1977-03-15 Mcdonnell Douglas Corporation Aircraft flight controller
FR2334038A1 (fr) * 1975-12-01 1977-07-01 Caterpillar Tractor Co Dispositif a levier unique pour la commande de vannes multiples
US4133251A (en) * 1977-02-28 1979-01-09 Caterpillar Tractor Co. Single lever control apparatus
WO1980001599A1 (en) * 1979-02-02 1980-08-07 Caterpillar Tractor Co Adjustment method pipelayer control system
EP0032883A3 (en) * 1980-01-09 1981-12-23 Bergsjoverken Aktiebolag Operating arrangement for combined actuation of two movable control devices
US4407716A (en) * 1981-06-08 1983-10-04 Deepsea Ventures, Inc. Liquid flow system including multi-axial liquid flow screening means for excluding oversized slender objects carried by a liquid
FR2701577A1 (fr) * 1993-02-11 1994-08-19 Michel Luc Actionneur de télécommande mécanique de deux organes ou parties d'organes déplaçables approximativement linéairemeent en va-et-vient.
US5558127A (en) * 1992-10-09 1996-09-24 Kabushiki Kaisha Komatsu Seisakusho Hydraulic pilot valve
GB2299154A (en) * 1995-03-22 1996-09-25 Still Gmbh Control arrangement for actuation of control devices through a common control lever
US6389922B1 (en) * 2000-02-14 2002-05-21 Clark Equipment Company Control for drive motors for a self-propelled machine
US6477914B1 (en) * 2000-07-24 2002-11-12 Clark Equipment Company Motion alarm
US20130036850A1 (en) * 2011-08-12 2013-02-14 Colin J. Corey Shifter apparatus with adjustable shift stick length and tension selection features
EP3832028A4 (en) * 2018-07-31 2021-12-22 Sumitomo (S.H.I.) Construction Machinery Co., Ltd. EXCAVATOR
US20230064670A1 (en) * 2021-08-27 2023-03-02 Elobau Gmbh & Co. Kg Operating element and manufacturing method for an operating element

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US470668A (en) * 1892-03-15 Combined pad-support and pencil-holder
US1499640A (en) * 1921-11-16 1924-07-01 Lucius D Copeland Dirigible lamp
US2679678A (en) * 1951-01-23 1954-06-01 New Britain Machine Co Horizontal boring, drilling, and milling machine
US3049939A (en) * 1961-04-03 1962-08-21 Deere & Co Control mechanism
US3191455A (en) * 1963-04-16 1965-06-29 Gen Motors Corp Remotely controlled rear-view mirror
US3225621A (en) * 1961-11-17 1965-12-28 Gen Motors Corp Remotely controlled mirror
US3253481A (en) * 1963-12-18 1966-05-31 Nelmor Corp Remote control device operated by cables
US3369427A (en) * 1965-10-18 1968-02-20 Arvin Ind Inc Remote controlled mirror
US3541877A (en) * 1969-01-23 1970-11-24 Richard D Houk Single lever control for coordinating multiple motion transmitting devices
US3550470A (en) * 1969-06-23 1970-12-29 Arvin Ind Inc Remote controlled mirror
US3625085A (en) * 1969-10-27 1971-12-07 Leader International Ind Inc Control for remote controlled mirror
US3705519A (en) * 1969-12-23 1972-12-12 Hesselman Bil Aero Ab A single-lever mechanism

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US470668A (en) * 1892-03-15 Combined pad-support and pencil-holder
US1499640A (en) * 1921-11-16 1924-07-01 Lucius D Copeland Dirigible lamp
US2679678A (en) * 1951-01-23 1954-06-01 New Britain Machine Co Horizontal boring, drilling, and milling machine
US3049939A (en) * 1961-04-03 1962-08-21 Deere & Co Control mechanism
US3225621A (en) * 1961-11-17 1965-12-28 Gen Motors Corp Remotely controlled mirror
US3191455A (en) * 1963-04-16 1965-06-29 Gen Motors Corp Remotely controlled rear-view mirror
US3253481A (en) * 1963-12-18 1966-05-31 Nelmor Corp Remote control device operated by cables
US3369427A (en) * 1965-10-18 1968-02-20 Arvin Ind Inc Remote controlled mirror
US3541877A (en) * 1969-01-23 1970-11-24 Richard D Houk Single lever control for coordinating multiple motion transmitting devices
US3550470A (en) * 1969-06-23 1970-12-29 Arvin Ind Inc Remote controlled mirror
US3625085A (en) * 1969-10-27 1971-12-07 Leader International Ind Inc Control for remote controlled mirror
US3705519A (en) * 1969-12-23 1972-12-12 Hesselman Bil Aero Ab A single-lever mechanism

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012014A (en) * 1975-09-11 1977-03-15 Mcdonnell Douglas Corporation Aircraft flight controller
FR2334038A1 (fr) * 1975-12-01 1977-07-01 Caterpillar Tractor Co Dispositif a levier unique pour la commande de vannes multiples
US4133251A (en) * 1977-02-28 1979-01-09 Caterpillar Tractor Co. Single lever control apparatus
WO1980001599A1 (en) * 1979-02-02 1980-08-07 Caterpillar Tractor Co Adjustment method pipelayer control system
EP0032883A3 (en) * 1980-01-09 1981-12-23 Bergsjoverken Aktiebolag Operating arrangement for combined actuation of two movable control devices
US4407716A (en) * 1981-06-08 1983-10-04 Deepsea Ventures, Inc. Liquid flow system including multi-axial liquid flow screening means for excluding oversized slender objects carried by a liquid
US5558127A (en) * 1992-10-09 1996-09-24 Kabushiki Kaisha Komatsu Seisakusho Hydraulic pilot valve
FR2701577A1 (fr) * 1993-02-11 1994-08-19 Michel Luc Actionneur de télécommande mécanique de deux organes ou parties d'organes déplaçables approximativement linéairemeent en va-et-vient.
GB2299154A (en) * 1995-03-22 1996-09-25 Still Gmbh Control arrangement for actuation of control devices through a common control lever
FR2732130A1 (fr) * 1995-03-22 1996-09-27 Still Gmbh Dispositif de manoeuvre pour actionner des organes de commande a l'aide d'un levier de manoeuvre commun
GB2299154B (en) * 1995-03-22 1999-01-20 Still Gmbh A control arrangement for the actuation of control devices
US6389922B1 (en) * 2000-02-14 2002-05-21 Clark Equipment Company Control for drive motors for a self-propelled machine
US6477914B1 (en) * 2000-07-24 2002-11-12 Clark Equipment Company Motion alarm
US20130036850A1 (en) * 2011-08-12 2013-02-14 Colin J. Corey Shifter apparatus with adjustable shift stick length and tension selection features
US9010211B2 (en) * 2011-08-12 2015-04-21 Colin J. Corey Shifter apparatus with adjustable shift stick length and tension selection features
EP3832028A4 (en) * 2018-07-31 2021-12-22 Sumitomo (S.H.I.) Construction Machinery Co., Ltd. EXCAVATOR
US11761168B2 (en) 2018-07-31 2023-09-19 Sumitomo Construction Machinery Co., Ltd. Shovel
US20230064670A1 (en) * 2021-08-27 2023-03-02 Elobau Gmbh & Co. Kg Operating element and manufacturing method for an operating element
US11993916B2 (en) * 2021-08-27 2024-05-28 Elobau Gmbh & Co. Kg Operating element and manufacturing method for an operating element

Also Published As

Publication number Publication date
BR7302176D0 (pt) 1974-07-25
JPS4970089A (cs) 1974-07-06

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