US3023869A - Single lever control unit - Google Patents

Single lever control unit Download PDF

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Publication number
US3023869A
US3023869A US53741A US5374160A US3023869A US 3023869 A US3023869 A US 3023869A US 53741 A US53741 A US 53741A US 5374160 A US5374160 A US 5374160A US 3023869 A US3023869 A US 3023869A
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cam
control lever
shuttle block
throttle
drive member
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US53741A
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English (en)
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John F Morse
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Individual
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Priority to US53741A priority Critical patent/US3023869A/en
Priority to GB30686/61A priority patent/GB932181A/en
Priority to BE607732A priority patent/BE607732A/fr
Priority to DEM50186A priority patent/DE1224558B/de
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
    • B63H21/213—Levers or the like for controlling the engine or the transmission, e.g. single hand control levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/07—Automatic control systems according to one of the preceding groups in combination with control of the mechanism receiving the engine power
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S74/00—Machine element or mechanism
    • Y10S74/08—Marine control-ship transmission control means
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18088—Rack and pinion type
    • Y10T74/18096—Shifting rack

Definitions

  • the invention relates generally to single lever control units adapted for operating both the clutch and throttle of an internal combustion engine or other mechanism requiring sequentially operated controls. More particularly, the present invention relates to an improved and simplified mechanism for sequentially operating the throttle and clutch or drive gear of an engine by a single control lever.
  • Mechanisms of this type are in special demand in the field of marine engine controls.
  • Certain prior art constructions of single lever marine engine control units employed a Geneva gearing arrangement to sequence the controls.
  • This mechanism desirably allowed the con- ⁇ struction of the unit to be fairly compact, but was especially disadvantageous in that the rate of movement of the control cables, particularly the clutch control cable, by means of a Geneva gearing mechanism is not constant.
  • a single lever control employing an intermittent gearing mechanism may for example, be found in the applicants U.S. Patent No. 2,884,109.
  • Geneva gearing such a mechanism imparts a relatively constant rate of movement to the control cables, allows only a moderate advancement of the throttle during the shifting range of the control lever, and accomplishes a smooth shift from neutral to either forward or reverse range with not more than approximately a 45 rotation of the control lever.
  • the intermittent gear action provides a greatly improved single lever control unit.
  • a unit requires multiple, specially toothed gears which increase the manufacturing cost and inject additional friction and backlash into the operation of the control unit.
  • This multiple gearing also requires substantial overall length for the unit to accommodate the gears and cable connections.
  • the present invention provides coordinated control of the throttle and clutch controls through the entire range of operation; the direction of rotation of the control lever from neutral selectively engaging forwardv or reverse gear, and rotation of the control lever beyond the shifting range advancing the throttle as desired.
  • the control lever is operatively connected to rotate a substantially circular wheel drive member.
  • the throttle control cable is displaced by the rotation of the wheel drive member.
  • the clutch control cable is displaced by a shuttle block which reciprocates a predetermined dis tance tangentially of the wheel drive member in response to rotation thereof.
  • the clutch control cablev is displaced to engage either forward or reverse gear during the initial rotation of the wheel drive member as the control lever is selectively rotated from neutral.
  • the wheel drive member then cooperates to lock the shuttle block whenv the former is further rotated to advance the throttle.
  • the wheel drive member effects a closing of the throttle and then tangentially displaces the shuttle block to disengage the forward or reverse drive gear.
  • This coordination of the wheel drive member and the shuttle block is obtained by the interaction of an inverted omega-shaped (w) or lobated cam surface on the shuttle block with two circumferentially spaced pins at the periphery and parallel to the axis of the wheel drive member to disengage the forward or reverse drive gear, and the interaction of rollers mounted at the central apex of the lobated cam surface with axially aligned camm'ed indentations in the periphery of the wheel drive member between the circumferentially spaced pins to engage the forward or reverse drive gear.
  • FIG. l is a rear side side elevation of a single lever control unit embodying the invention, with the cover plate removed, showing the control lever in neutral position.
  • FIG. 2 is a cross section taken substantially on line 2 2 of FIG. l.
  • FIG. 3 is a fragmentary area of FIG. 1 showing the control lever partially rotated through forward shift range from neutral. s
  • FIG. 4 is a fragmentary area of FIG. l, similar to that of FIG. 3, showing the control lever rotated through forward shift range to idle forward position.
  • FIG. 5 is a fragmentary area of FIG. l, similar to that of FIGS. 3 and 4, showing the control lever partially rotated from idle forward position toward neutral.
  • FIG. 6 is an enlarged cross section taken' substantially on line 6-1-6 of FIG. 1;
  • FIG. 7 is ⁇ a cross section taken substantially on line 7-7 of FIG. l.
  • the control unit' designated generally by the numeral 10
  • Rear plate 12 is adapted for attachment' to ⁇ a mounting pad 14 in the side of a boat by means not shown, or two like housings may be mounted side-by-side for twin engine controls.
  • a control lever 15 extends radially outwardly of hub 16, which is formed on the axially outer end of control shaft 18'.
  • Shaft'lS is journaled in housing 11,- and a flanged sleeve bearing 19 is preferably interposed between shaft 18 and housing 11.v AV wheel drive member 20 is non-rotatably secured to shaft 18, as by cap screws 21.
  • Braking friction may be provided to prevent undesired rotation of wheel drive member 20 by positioning a wavy spring Washer 22 between member 20 and the adjacent portion of housing 11. Braking friction is especially desirable if the unit is subjected to vibration or if the mechanisms being operated are in any way spring loaded, as would be the case if a spring governor were provided.
  • the circular wheel drive member 2t is secured to shaft 18 so as to rotate therewith about their common axis.
  • An annular groove or recess 23 (also see FIGS. 6 and 7) is provided medially of the circumferential edge of the member 20.
  • the breadth of the rims 24 and 25 in the sheave-like conguration is sucient to provide annular bearing surfaces 26 and 27.
  • the depth of recess 23 measured by the dimension from bearing surfaces 26 and 27 to the base surface 28 is selected to function as more fully hereinafter disclosed.
  • Indentations 29 and 30 in the rims 24 and 25, respectively, are aligned with each other and 'are defined by identical cam surfaces 31 and 32.
  • Circumferentially spaced pins or pin-like portions 33 and 34 extend between rims 24 and 25, one on each side of the'aligned indentations 29 and 30.
  • a swivel connection 35 is provided on the axially outer side of rim 24 in proximity to its peripheral edge and is attached to the end of a push rod 36 which telescopes within a sleeve 38.
  • Push rod 36 is secured, by suitable means not shown, to the end of the core 39 of a pushpull cable 4t) for operating a throttle and, in the neutral position of FIG. l, the push rod passes over the center or axis of wheel 20.
  • Sleeve 38 has a swivel connection with the front end of a mounting bushing 41 secured to the sheath 42 of cable 40.
  • Resilient sealing sleeves 43 and 44 which act as a moisture seal, may be provided at the joint between the bushing 41 and sleeve 38 and at the juncture of the sleeve 38 and push rod 36, respectively.
  • Mounting bushing 41 is preferably secured in a swivel clip 45 of the type shown in the applicants Patent No. 2,975,653.
  • Clip 45 is pivotally mounted on bolt 46 which secures it to housing 11. The use of a clip 45 mitigates undesirable binding of the core 39.
  • a recess 48 is formed Within housing 11 between the stepped portion 49 of housing 11 and plate 50 which is secured to housing 11, as by bolts 51.
  • the lower edge of plate 50 forms a tracking surface 52 which is opposed to the rotating bearing surface 26 on rim 24.
  • the lower face of stepped portion 49 forms a tracking surface 53 which is opposed to the rotating bearing surface 27 on rim 25.
  • Recess 48 in housing 11 is thereby tangentially aligned with recess 23 in member 20.
  • a shuttle block 54 is slidably received within recesses 23 and 48.
  • a pin 56 extends transversely through block 54 at the central apex of lobated cam 55.
  • Rollers 58 and 59 are journaled on pin 56, one on each side of block 54.
  • roller 58 is adapted to cooperate with rim 24 and plate 50
  • roller 59 is identically adapted to cooperate with rim 25 and stepped portion 49 of housing 11.
  • a push rod 60 which telescopes in sleeve 61, is screwed into shuttle block 54, and the other end is secured, by suitable means not shown, to the core 62 of a push-pull cable 63 for operating a clutch.
  • Sleeve 61 has a swivel connection with the front end of a mounting bushing 64 secured to the sheath l65 of cable 63.
  • Resilient sealing sleeves 66 and 67 are similarly provided at the joint between the bushing 64 and sleeve 61 and at the juncture of sleeve 61 and push rod 60.
  • Bushing 64 ,4 is secured to housing 11 by bracket clamp 69.
  • a swivel clip similar to clip 45 need not be used because of the substantially straight line reciprocation imparted to core 62.
  • roller 58 rests between indentation 29 and plate 50 and roller 59 similar ly rests between indentation 30 and stepped portion 49; pins 33 and 34 are embraced within recesses 70 and 71 of cam 55, respectively.
  • control lever 15 is yieldingly held in neutral position by a spring biased ball 72 received in a detent notch 73 in housing 11.
  • the recess 74 for spring 75 is integrally formed in wheel drive member 20.
  • rollers 58 and 59 journaled on slide block 54, may momentarily separate from tracking surfaces 52 and 53 as the rollers 58 and 59 begin their rotation along cam surfaces 31 and 32. Rollers 58 and 59 are prevented from remaining seated in indentations 29 and 3i) by base 28 of annular recess 23, which acts as a stop surface to prevent further radially inward movement of shuttle block 54. This situation is depicted in FIG. 3.
  • rollers 58 and 59 Under moderate to heavy resistance, the rollers 58 and 59 will maintain a proportionately moderate or heavy thrust against tracking surfaces 52 and 53. This thrust, however, does not frictionally impede the displacement of shuttle block 54 because, as indicated by the arrows in FIG. 4, the rotation of the rollers 58 and 59 not only provides rolling contact along the cam surfaces 31 and 32 and onto bearing surfaces 26 and 27 on rims 24 and 25, respectively, but also provides rolling contact along the tracking surfaces 52 and 53 on plate 5t) and stepped portion 49, respectively. In the position depicted in FIG. 4, shuttle block 54 has been sufficiently displaced to throw the forward gear into engagement.
  • control lever 15 Continued rotation of control lever 15 beyond the idle forward position depicted in FIG. 4, in which the forward gear has been engaged, as, for example, to the phantom representation, will displace the throttle control cable c ore 39 to advance the throttle.
  • This continued rotation of control lever 15 imparts no further displacement of shuttle block 54 and at the same time the shuttle block 54 will be maintained in its displaced position by the locking effect of bearing surfaces 26 and 27 and tracking Stop surface 80 on stepped portion 49 prevents over-travel of sh'uttle block 54 which might occur, as by vibration.
  • Opposed stop surface 81 (FEG. l) is provided to prevent over-travel when shuttle block 54 has been displaced by rotation of control lever into reverse gear range.
  • a small amount of clearance is indicated between pin 33 and roller 58 in FIG. 5. Although this clearance can be minuscule in actual practice, it was emphasized in the drawing to indicate clearly that the elements responsible for shifting into gear are not used to Shift out of gear, and vice versa. This concept enables the shifting elements to be constructed to perform their specic function Without the compromising considerations which would be necessitated if the driving elements were to perform dual or multiple functions. Devices utilizing the same elements for shifting, both into and out of gear, such as various forms of intermittent gearing must compromise between these two motions, which results in some ineciency in each direction.
  • a single lever control unit according to the present invention makes possible the maximum efficiency of one mechanism to shift into gear and the maximum etiieiency of a second mechanism to shift out of gear, while at the same time decreasing the complexity and cost of the entire assembly.
  • each mechanism to perform a single function also eliminates backlash in the interacting elements and increases the efficiency by eliminating inter mediate elements and applying a linear motion to the drive gear actuating elements.
  • This configuration of the drive gear control elements also resists binding or jamming of the elements when attempting to shift against a restriction, as, for example, when a shift is attempted with the motor not running and the shift dogs not in position for engagement.
  • a single lever control unit for the throttle and the clutch of an engine comprising, a control lever, a wheel drive member-rotatable by said control lever from a neutral position to operate a throttle, a shuttle block to operate a clutch, means to tangentially displace said shuttle block in response to the first portion of rotation from neutral'of said wheel drive member, and separate means to return said shuttle block during the return rotation to neutral of said wheel drive member.
  • a single lever control unit for the throttle andthe clutch of an engine comprising, a control lever, a wheel drive member rotatable by said control lever from a neutral position to operate a throttle, a shuttle block to operate a clutch, means to tangentially displace said shuttle block in'response to the iirst portion of rotation from neutral of said wheel drive member, separate means to return said shuttle block during the return rotation to neutral of said wheel drive member, and means to lock said shuttle block in said displaced position during continued rotation of said wheel drive member beyond said rstportion.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a 6 c neutral position and movable through a shifting range and then through a throttle advance range, a wheel drive member rotatable by said control lever to operate a throttle, a shuttle block to operate a clutch, means to tangentially displace said shuttle block in response to rotation of said control lever through said shifting range, means to lock said shuttle block during rotation of said control lever through said throttle advance range, and separate means to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for operating the throttle and clutch of an engine comprising, a control lever, a wheel drive member rotatable by said control lever from a neutral position in either direction to operate a throttle, a reciprocable member to operate a clutch, means on said wheel drive member to displace said reciprocable mcmber tangentially thereof during the first portion of rotation of said wheel drive member from neutral position in either direction, and separate means on said wheel drive member to return said reciprocable member to neutral position when rotation of said wheel drive member is reversed.
  • a single lever control unit for operating the throttle and drive gear of an engine comprising, a control lever, a wheel drive member rotatable by said control lever from a neutral position in either direction to operate a throttle, a reciprocable member to operate a clutch, means on said wheel drive member to displace said reciprocable member tangentially thereof during the first portion of rotation of said wheel drive member from neutral position in either direction, separate means on said wheel drive member toy return said reciprocable member to neutral position when rotation of said Wheel drive member is reversed, and means to lock said reciprocable member in said displaced position during continued rotation of said Wheel drive member beyond said portion of rotation.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a shifting range and then through a throttle advance range, a circular Wheel drive member rotatable by said control lever to operate a throttle, a cam indentation on the periphery of said wheel drive member, a shuttle block to operate a clutch, cam engaging means on said shuttle block adapted to interact with said cam indentation to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, and Iseparate means to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a shifting range and a throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle, a cam indentation on the periphery of said wheel drive member, a shuttle block to operate a clutch, cam engaging means on said shuttle block adapted to interact with said cam indentation to cause tangential displacement of ⁇ said shuttlev block during rotation of said control lever through said shifting range, a lobated cam on said slide block, and pick-up means on saidwheel drive member, said pick-up means engaging said lobated ⁇ cam to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutr-al position and movable through a shifting range and a throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle, a cam indentation onv the periphery of said wheel drive member, a shuttle to operate a clutch, cam engaging means on said shuttle block adapted to interact with said cam indentationto cause tangential displacement of said shuttle block during rotation of saidcontrol lever through said shifting range, means to lock said shuttle block in said displaced position when said control lever is rotated through said throttle advance range, a lobated cam on said shuttle block, and pick-up means on said wheel drive member, said pick-up means engaging said lobated cam to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a shifting range and a throttle advance range, a circular Wheel drive member rotatable by said control lever to operate a throttle and having an annular recess, a cam indentation on the periphery of said wheel drive member, a shuttle block received in said annular recess and adapted to operate a clutch, a cam engaging means on said shuttle block adapted to interact with Vsaid cam indentation to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, and means to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a shifting range and a throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle and having an annular recess, a cam indentation on the periphery of said wheel drive member, ⁇ a shuttle block received in said annular recess and adapted to operate a clutch, a cam engaging means on said shuttle block adapted to interact with said cam indentation to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, a lobated cam on said shuttle block, and pick-up means on said wheel drive member, said pick-up means engaging said lobated cam to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a shifting range and a throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle and having an annular recess, a cam indentation on the periphery of said Wheel drive member, a shuttle block received in said annular recess and adapted to operate a clutch, a cam engaging means on said shuttle block adapted to interact with said cam indentation to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, means to lock said shuttle block in said displaced position when said control lever is rotated through said throttle advance range, a lobated cam on said shuttle block, and pick-up means on said wheel drive member, said pick-up means engaging said lobated cam to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a shifting range and a throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said Wheel drive member dening an annular recess therebetween in the circumferential edge of said wheel drive member, axially aligned cam indentations on said rims, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said shuttle block, a roller journaled on each side of said shuttle block adapted to interact with said cam indentations to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, and pick-up means on said wheel drive member, said pick-up means engaging said lobated cam to return said shuttle block during return rotation of said control lever through said shifting range.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said wheel drive member defining an annular recess therebetween in the circumferential edge of said wheel drive member, axially aligned cam indentations on said rims, a pick-up pin extending between said rims on each side of said cam indentations, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said slide block, and a roller journaled on each side of said shuttle block adapted to interact with said cam indentations to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, said pick-up pins selectively engaging said lobated cam to return said shuttle block during return rotation of said control lever through said shifting ranges.
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said wheel drive member dening an annular recess therebetween in the circumferential edge of said wheel drive member, axially aligned cam indentations on said rims, a pick-up pin extending between said rims on each side of said cam indentations, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said shuttle block, a roller journaled on each side of said shuttle block adapted to interact with said cam indentations to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, means to lock said shuttle block in said displaced position during continued rotation of said control lever through said throttle advance range, said pick-up pins selectively engaging said lobated cam
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advance range, a circular wheel drive member, peripheral rims on said Wheel drive member defining an annular recess therebetween in the circumferential edge of said Wheel drive member, axially aligned cam indentations on said rims, pick-up means disposed between said rims, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said shuttle block, a roller journaled on each side of said shuttle block adapted to interact with said cam indentations to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, slanted engaging surfaces on said lobated cam, said pickup means selectively engaging said slanted surfaces on said lobated cam to return said shuttle block at a constant rate of displacement during return rotation of said control lever at a correspondingly constant rate through said shifting ranges
  • a single lever control unit for the throttle and clutch of an engine comprising, a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said wheel drive member defining an annular recess therebetween in the circumferential edge of said wheel drive member, axially aligned cam indentations on said rims, pick-up pins disposed between said rims on each side of said cam indentations, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said shuttle block, a roller journaled on each side of said shuttle block adapted to interact with said cam indentations to cause tangential displacement of said shuttle block during rotation of said control lever through said shifting range, means to lock said shuttle block in translated position when said control lever is rotated through said throttle advance range, slanted engaging surfaces on said lobated cam, said pick-up
  • a single lever control unit for the throttle and clutch of an engine comprising, a housing, a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advance range, a circular wheel drive member rotatable by said control lever to operate a throttle and having a peripheral bearing surface and an annular recess, a cam indentation in said bearing surface, pick-up means on each side of said indentation, tracking means tangentially disposed to said bearing surface, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said shuttle block, means on said shuttle block to engage said cam indentation, said cam engaging means positioned between said cam indentation and said tracking means when said control lever is in neutral position, said cam engaging means movable between said tracking means and said cam indentation to tangentially displace said shuttle block when said control lever is rotated through said shifting range, the displacement of said shuttle block maintained by the action of said circumferential bearing surface and tracking means against said cam
  • a single lever control unit for the throttle and clutch of an engine comprising, a housing, a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advancing range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said Wheel drive member and having a peripheral bearing surface and an annular recess, a cam indentation in said bearing surface, a pick-up pin in said wheel drive member on each side of said cam indentation, tracking means tangentially disposed to said bearing surfaces, a shuttle block received in said annular recess and adapted to operate a clutch, said shuttle block operatively connected to a drive gear, a lobated cam on said shuttle block, means on said shuttle block to engage said cam indentation, said cam engaging means positioned between said cam indentation and said tracking means when said control lever is in neutral position, said cam engaging means movable between said tracking means and said cam indentation to tangentially displace said shuttle block when said control
  • a single lever control unit for the throttle and clutch of an engine comprising, a housing a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advancing range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said wheel drive member defining an annular recess therebetween in the circumferential edge of said wheel drive member, the circumferential edge of each of said rims dening a bearing surface, axially aligned cam indentations on said rims in said bearing surface, pick-up pins disposed between said rims on each side of said cam indentations, tracking means tangentially disposed to said bearing surfaces, a shuttle block received in said annular recess and adapted to operate a clutch, a lobated cam on said shuttle block, a roller journaled on each side of said shuttle block, each of said rollers positioned between a cam indentation and a tracking surface when said control lever is in neutral position, said roller
  • a single lever control unit for the throttle and clutch of an engine comprising, a housing a control lever having a neutral position and movable through a forward and reverse shifting range and a forward and reverse throttle advancing range, a circular wheel drive member rotatable by said control lever to operate a throttle, peripheral rims on said wheel drive member deining an annular recess therebetween in the circumferential edge of said wheel drive member, the circumferential edge of each of said rims defining a bearing surface, axially aligned cam indentations on said rims in said bearing surface, pick-up pins disposed between said rims on each side of said cammed indentations, tracking surfaces located in said housing and tangentially disposed to said bearing surfaces, a recess between said tracking surfaces opposed to the annular recess in said wheel drive member, a shuttle block received in said annular recess and its opposed recess between said tracking surfaces, said shuttle block adapted to operate a clutch, a lobated cam on said shuttle block,

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
US53741A 1960-09-02 1960-09-02 Single lever control unit Expired - Lifetime US3023869A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US53741A US3023869A (en) 1960-09-02 1960-09-02 Single lever control unit
GB30686/61A GB932181A (en) 1960-09-02 1961-08-25 Single lever engine throttle and clutch control
BE607732A BE607732A (fr) 1960-09-02 1961-08-31 Appareil de commande à levier unique pour moteur
DEM50186A DE1224558B (de) 1960-09-02 1961-08-31 Einhebelsteuerung fuer Brennkraftmaschinen

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US53741A US3023869A (en) 1960-09-02 1960-09-02 Single lever control unit

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US3023869A true US3023869A (en) 1962-03-06

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US53741A Expired - Lifetime US3023869A (en) 1960-09-02 1960-09-02 Single lever control unit

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US (1) US3023869A (fr)
BE (1) BE607732A (fr)
DE (1) DE1224558B (fr)
GB (1) GB932181A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057221A (en) * 1961-07-10 1962-10-09 Walter N Smith Single lever control means for remote push-pull mechanisms
US4089397A (en) * 1975-12-24 1978-05-16 Nippon Cable System Inc. Control mechanism
US4245527A (en) * 1978-10-18 1981-01-20 Towmotor Corporation Control pedal assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933943A (en) * 1958-10-31 1960-04-26 Buddo Single lever operating controls

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386948A (en) * 1930-04-18 1933-01-26 Fiat Spa Improvements in or relating to controlling devices for internal combustion engines
US2907421A (en) * 1957-10-04 1959-10-06 Morse Instr Company Single lever engine control
FR1222102A (fr) * 1958-05-23 1960-06-08 Ensemble de commande à levier unique pour moteurs marins

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933943A (en) * 1958-10-31 1960-04-26 Buddo Single lever operating controls

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057221A (en) * 1961-07-10 1962-10-09 Walter N Smith Single lever control means for remote push-pull mechanisms
US4089397A (en) * 1975-12-24 1978-05-16 Nippon Cable System Inc. Control mechanism
US4245527A (en) * 1978-10-18 1981-01-20 Towmotor Corporation Control pedal assembly

Also Published As

Publication number Publication date
GB932181A (en) 1963-07-24
BE607732A (fr) 1962-02-28
DE1224558B (de) 1966-09-08

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