US3741044A - Single lever control apparatus for marine engine - Google Patents

Single lever control apparatus for marine engine Download PDF

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Publication number
US3741044A
US3741044A US00203766A US3741044DA US3741044A US 3741044 A US3741044 A US 3741044A US 00203766 A US00203766 A US 00203766A US 3741044D A US3741044D A US 3741044DA US 3741044 A US3741044 A US 3741044A
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United States
Prior art keywords
throttle
operating member
clutch operating
clutch
transmission shaft
Prior art date
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.)
Expired - Lifetime
Application number
US00203766A
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English (en)
Inventor
M Baba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hi Lex Corp
Original Assignee
Nippon Cable System Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Cable System Inc filed Critical Nippon Cable System Inc
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Publication of US3741044A publication Critical patent/US3741044A/en
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    • 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

Definitions

  • FIG. I2 is a diagrammatic representation of FIG. I2
  • the present invention relates to a novel control apparatus for marine engine more particularly to an apparatus for controlling the clutch and throttle of a marine engine by a single lever.
  • the apparatus of this type can be operated with ease and safety even by an unskilled person. Accordingly, such apparatus must fulfil the following essential requirements.
  • the apparatus must be so designed that the throttle will not operate before the reengagement of the clutch.
  • the apparatus In order to retain the boat at a given position against a tide or to enable the boat to move forward or backward at a constant speed, the apparatus must include a mechanism for keeping a constant throttle range even when the control lever is released from the hand.
  • the apparatus must incorporate safety means for keeping the clutch completely in a locked state during the operation of the throttle and further means for locking the clutch in neutral position during the warming up of the engine while permitting the throttle to operate as desired so that the boat will not inadvertently start to operate for safety.
  • the present invention contemplates provision of an apparatus which fulfils the essential requirements described and which is easy to operate, applicable for engines of various types, suitable for mass production and yet compact and lightweight.
  • An object of the present invention is to provide a mechanism which keeps the throttle out of operation before the clutch has completely been engaged in forward or backward position.
  • Another object of this invention is to provide a mechanism for locking the throttle while the clutch is in operation and for locking the clutch while the throttle is in operation.
  • Another object of this invention is to provide a mechanism whereby the throttle range can be kept constant even when the lever is released from the hand so as to maintain the speed of the boat at a constant level.
  • Still another object of this invention is to provide an apparatus for versatile uses which is applicable to a throttle cable of the push or pull type.
  • a throttle operating member and a clutch operating member are rationally designed and adapted for multi-purposes and which includes simple but efficient means for relating these members with each other as well as for engaging these members with a transmission shaft serving as the pivot for the control lever.
  • FIG. 1 is an elevation showing the rear of an embodiment of the control apparatus of this invention, with a rear cover removed, the view illustrating the apparatus when the control lever is in neutral position;
  • FIG. 2 is a part of an enlarged section taken along the line BB in FIG. 1;
  • FIG. 3 is a view in section taken along the line AA in FIG. 1;
  • FIG. 4 is a view in section of the control lever
  • FIG. 5 is a perspective view of the transmission shaft
  • FIG. 6 is a perspective view of the throttle operating gear
  • FIG. 7 is a perspective view of the throttle operating member
  • FIG. 8 is an elevation showing the clutch operating member
  • FIG. 9 is a right side view of the member shown in FIG. 8.
  • FIG. 10 is a perspective view of the clutch operating gear
  • FIG. 11 is an elevation showing the rear of the control apparatus of this invention, with a rear cover removed, the view illustrating the apparatus when the control lever is shifted to forward position and the clutch is completely engaged in forward position.
  • FIG. 12 is an elevation showing the rear of the control apparatus of this invention, with a rear cover removed, the view illustrating the apparatus when the control lever is shifted to backward position and the clutch is completely engaged in backward position;
  • FIG. 13 is details of perspective views showing the means for mounting the cable holder on the case
  • FIG. 14 is a view in sections showing other embodiment of the control apparatus of this invention.
  • FIG. 15 is a plane figure of the throttle operating gear shown in FIG. l4;
  • a control lever 1 has a base portion 2, al ng the axis of which there are formed a hole 3 and hole 5.
  • the hole 3 is formed at its in ner face with a number of projections 4 extending in the axial direction.
  • a transmission shaft 6 in the form of a cylinder has, in the outer peripheral surface at its end, a number of grooves 8 extending in the axial direction and engageable with the projections 4 at the desired position so as to lock the lever 1 to the transmission shaft 6 adjustably.
  • a screw 16 is driven through the base portion into a groove 17 in the outer peripheral surface of the transmission shaft 6.
  • the transmission shaft 6 in the form of a cylinder is inte rally formed with a brim 9 at one end thereof, and two horns 13, 13' with slender parts l5, 15 at the top of their horns are formed on the surface of the brim.
  • the brim 9 has, in the outer peripheral surface 9', three notchs 10, ll, 12 (see FIG. 5).
  • the throttle operating gear 18 formed of a flat board has a slot 19 at its center, and teeth a, b, c, and an outer peripheral surface 20.
  • the throttle operating gear 18 is fixed to the brim 9 by screws so as to rotate with the shaft 6, the horns 13, 13' extending through its slot 19.
  • FIG. 16 is a side elevation of the gear shown in FIG is like V shape as illustrated in FIG. 7, and has at an end of the member a hole 25 for a stationary shaft 23 and several teeth 26 on the outer peripheral surface of the hole 25. At the outer end of the member there are formed a hole 29 and teeth 27 disposed on the arc with the hole 25 as the center. In the hole 29, there is disposed a metal member 74 to which the rod 60 of the throttle control cable 60 is attached.
  • the throttle operating member has an arcuate concave face 28 between the teeth 26 and the teeth 27, and the outer peripheral surface 20 of the throttle operating gear 18 comes into sliding contact with the concave face 28.
  • the clutch operating gear 40 as illustrated in FIG.
  • the clutch operating member 30 formed of a flat board, has a hole 30 at its center, recesses 32, 32' meshing with the tooth 41 of the clutch operating gear 40 and arcuate concave faces 33,34 in sliding contact with the outer peripheral surfaces 42, 43 of the gear into facing relation to each other.
  • the clutch operating member 30 has a hole 31 for the shaft 23 at one end, and an arm 38 with a hole 39 to the other end.
  • a stopper 21 projecting to the direction of the board thickness is formed over the recess 32, like L shape in its side view.
  • the stopper has an arcuate convex face 36 with the hole 31 as a center and a recess 37.
  • the pivot 23 has an internal threaded portion into which a bolt 81 with a washer 82 is driven to retain these members in position.
  • the shaft 44 of the clutch operating gear 40 passes through the center hole 7 of the transmission shaft, and the cap 45 projecting from the base portion 2 is fitted to an end of the shaft 44 and there is provided a spring 47 between the end surface 45' of the cap 45 and the step portion 7' of the hole 7 to retain the clutch operating gear 40 in position.
  • the tooth 41 of the clutch operating gear 40 meshes with the recess 32 of the clutch operating member 30.
  • the horns 13, 13' of the transmission shaft 6 pass through the hole 19, thereby the throttle operating gear is attached to the shaft.
  • the slender parts 15, of the horns engage with the recesses 48, 48 of the clutch operating gear.
  • FIG. 13 shows the part where the cable extends through the case.
  • a holder 84 and 85 attached to the cables 59 and 60 have a groove 72 and 68 respectively.
  • a notch 66 formed in the case 22 is in U shape, its width is equal to outer diameter of the holders 84 and 85 and a ditch 67 is formed at the inner surface of the notch.
  • the holder 85 is disposed in the notch 66 with the groove 68 of the holder facing to the ditch 67 of the notch.
  • the metal member 69 is disposed with the both ends fixed into the ditch 67 and the groove 68 of the holder 85 is fixed into the concave face 70 of the metal member.
  • the holder 84 is disposed thereon with its groove 72 fixed into the concave face 71 of the member 69, further the metal member 73 with the both ends fixed into the ditch 67 is fixed-by the rear cover 25, and the groove 72 of the holder 84 is fixed into the concave face 74 of themember 73.
  • the cap 45 fixed to the end of the clutch operating gear serves to disengage the tooth 41 of the clutch operating gear from the recess 32 of the clutch operating member. If the cap is depressed in the direction r in FIG.
  • the supporting members 51, 51 are integrally formed with the case 22.
  • the plate 52 has two slots 54, 54, wherein the screws 53, 53 are driven into the supporting member to prevent the plate 52 from sliding to the direction T or U.
  • the plate 52 includes the notch 55, in which the end portion 61 of the locking knob 58 is fixed. Accordingly, when the locking knob 58 is driven, the plate 52 moves and the projection 62 of the plate presses in contact with the outer peripheral surface 9' of the brim 9 to prevent the transmission shaft from rotation.
  • the transmission shaft 6, the throttle operating gear 18 and the clutch operating gear 40 are rotated at the same time, with the result that the clutch operating member 30 is rotated in the reverse direction of the lever, i.e. in the direction W, causing to push the rod 59' of the clutch cable connected to the arm 38 of the clutch operating member and thereby engage the clutch in forward position.
  • the clutch operating member 30 is rotated in the reverse direction of the lever, i.e. in the direction W, causing to push the rod 59' of the clutch cable connected to the arm 38 of the clutch operating member and thereby engage the clutch in forward position.
  • the tooth a of the throttle operating gear comes to mesh with the teeth 26 of the throttle operating member.
  • the peripheral surface 42 of the clutch operating gear in sliding contact with the arcuate concave face 33 of the clutch operating member maintains the clutch operating member in the locked state.
  • the teeth a, b, c if the throttle operating gear 18 mesh with the teeth 26 of the throttle operating memher, with the result that the throttle operating member are rotated in the reverse direction of the lever, i.e. in the direction Y, causing to push the rod 60 of the throttle cable and thereby operate the throttle.
  • the tooth 41 of the clutch operating gear 40 is engaged with the recess 32 of the clutch operating member to cause the clutch operating member 30 to pivot toward the direction X and thereby bring back to the neutral position. If the lever 1 is pivoted toward the backward position, i.e. toward the direction B, to drive the boat backward or to apply the brake thereto during forward operation, the clutch operating member 30 is pivoted toward the direction X by the tooth 41 of the clutch opv erating gear meshed with the recess 32 of the clutch operating member, pulling the rod 59' of the clutch cable to engage the clutch in backward position when the peripheral surface 43 of the clutch operating gear comes to slide in contact with the arcuate concave face 34 of the clutch operating member.
  • the column-like member 49 is fixed into the notch 12 of the brim of the transmission shaft, so that the engagement in backward position of the clutch is notified to the operator through the hand.
  • the peripheral surface 28 of the throttle operating member 24 in sliding contact with the peripheral surface 20 of the throttle operating gear 18 prevents the rotation of the member 24, but when the clutch has completely been engaged, the tooth c of the throttle operating gear contacts with the step portion 56 between the teeth 27 of the throttle operating member and the arcuate concave face 28. Further pivotal movement of the lever causes the peripheral surface 43 of the clutch operating gear to slide in contact with the arcuate concave face 34 of the clutch operating member 30, and thereby prevent the rotation of the member 30.
  • the teeth 27 of the throttle operating member 24 mesh with the teeth c, b, a, of the throttle operating gear in order, and thereby the member 24 is pivoted.
  • the stopper fixed to the suitable position of the case prevents the rotation of the lever.
  • the throttle operating member 24 is pivoted toward the same direction and causes the rod 60 of the throttle cable to push and thereby advance the throttle range.
  • the throttle operating gear 18 and the throttle operating member 24 turned over respectively may be fixed to the transmission shaft 6 and the shaft 23 respectively. Under these conditions, the rod 60 of the throttle control cable may be pulled when the lever l is shifted toward the forward direction or the backward direction. If it is necessary to give the clutch control cable 59 an operation reverse to the foregoing, the clutch operating gear 40 revolved may be engaged with the transmission shaft 6 and the tooth 41 of the gear 40 may be meshed with the recess 32' of the clutch operating member.
  • the locking knob 58 is driven to cause to press the projection 62 of the plate 52 into contact with the outer peripheral surface 9 of the brim of the transmission shaft so as to prevent the rotation of the transmission shaft 6.
  • the push button 45 is depressed in the direction r in FIG. 3 with the lever 1 in neutral position to disengage the slender parts 15, of the transmission shaft 6 from the recesses 48, 48'
  • the throttle operating gear may be formed as shown in FIGS. 14, 15, 16.
  • the throttle operating gear 18' has, at its center, the hole 75 permitting the shaft 44 of the clutch operating gear to slide through, and at the both sides of the hole the projections 76, 76' on the surface and the projections 77, 77' corresponding to said projections on the back.
  • the transmission shaft 6 has the recesses 78, 78 at the position corresponding to the projections 77, 77.
  • the projections 77, 77 are fixed into the recesses 78, 78', and the throttle operating gear is fixed to the shaft 6' by the screw driven through the screw hole 79 of said gear.
  • the shaft 44 of the clutch operating gear slidably extends through the center holes of the transmission shaft 6 and the throttle operating gear, and the projections 76, 76 of the throttle operating gear are fixed into the recesses 48,48 of the clutch operating gear to cause the throttle operating gear to engage with the clutch operating gear. If it is necessary to give the throttle' cable 60 an operation reverse to the foregoing, the throttle operating gear 18' may be turned over, and fixed to the transmission shaft.
  • the throttle does not operate before the clutch has completely been engaged in forward or backward position.
  • the clutch operating gear 44 can be disengaged from the transmission shaft 6 only in neutral position, with the resulting advantage that warming up of the engine can be performed with safety and that even when the push button is inadvertently depressed while the boat is in operation, the clutch will not be shifted.
  • the locking mechanism keeps the throttle range constant even when the lever 1 is released from the hand.
  • the push button when merely depressed with the lever in neutral position, makes the apparatus ready for engine warming up. After warming up, the push button is returned to the original position and the apparatus is made ready for usual operation simply by returning the lever to neutral position.
  • a single lever control apparatus having a housing for operating the clutch and throttle of an engine comprising a transmission shaft (6) adjustably carrying a control lever (1), a clutch operating member and a throttle operating member to be driven by said transmission shaft, said transmission shaft (6) carrying a throttle operating gear having teeth and a locking face, said throttle operating member having a V-shaped form being rotatably supported on a stationary pivot (23) at one end, and having teeth (26, 27) oppositely at both ends and a locking face (28) between them, the locking face of said throttle operating member being engageable with the locking face (20) of said throttle operating gear to lock said throttle operating member when said control lever (l) is in neutral position, the teeth of said throttle operating gear being meshable with the teeth (26) of said throttle operating member to rotate said throttle operating member when said control lever (1) is pivoted toward one direction, the teeth of said throttle operating gear being meshable with the teeth (27) of said throttle operating member to rotate said throttle operating member in the same direction as above mentioned when said control lever 1 is pivoted toward the other direction.
  • a brim (9) is integrally formed with said transmission shaft, and notches (l0, l1, 12) are formed at the outer peripheral surface of said brim, and a column-like member (49) are fixed into said notches 10, 11, and 12) in turn when said control lever (l) is in neutral position, engaged completely in forward position and backward position.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Mechanical Control Devices (AREA)
US00203766A 1971-08-31 1971-12-01 Single lever control apparatus for marine engine Expired - Lifetime US3741044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46067313A JPS5029240B2 (en, 2012) 1971-08-31 1971-08-31

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US3741044A true US3741044A (en) 1973-06-26

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US00203766A Expired - Lifetime US3741044A (en) 1971-08-31 1971-12-01 Single lever control apparatus for marine engine

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JP (1) JPS5029240B2 (en, 2012)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929039A (en) * 1973-05-17 1975-12-30 Teknoflex Control System Ab Single lever control device
US4034835A (en) * 1974-07-26 1977-07-12 Nippon Cable System Inc. Clutch and throttle control mechanism
US4144956A (en) * 1977-08-08 1979-03-20 Nippon Cable Systems Inc. Single lever control unit for engines
US4204111A (en) * 1977-10-19 1980-05-20 Monsanto Company Heating improvements in a preform reheat system
US4253349A (en) * 1979-03-05 1981-03-03 Brunswick Corporation Control unit for marine engines employing neutral lock mechanism
US4512451A (en) * 1982-06-21 1985-04-23 Jacob Kobelt Single lever control assembly to permit disengagement between two functions
US4951520A (en) * 1988-11-17 1990-08-28 Outboard Marine Corporation Single lever control

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53145287A (en) * 1977-05-21 1978-12-18 Nippon Cable Syst Inc Controller of engine for shipping
JPS59134369U (ja) * 1983-02-28 1984-09-08 日本電池株式会社 蓄電池用安全排気栓

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929039A (en) * 1973-05-17 1975-12-30 Teknoflex Control System Ab Single lever control device
US4034835A (en) * 1974-07-26 1977-07-12 Nippon Cable System Inc. Clutch and throttle control mechanism
US4144956A (en) * 1977-08-08 1979-03-20 Nippon Cable Systems Inc. Single lever control unit for engines
US4204111A (en) * 1977-10-19 1980-05-20 Monsanto Company Heating improvements in a preform reheat system
US4253349A (en) * 1979-03-05 1981-03-03 Brunswick Corporation Control unit for marine engines employing neutral lock mechanism
US4512451A (en) * 1982-06-21 1985-04-23 Jacob Kobelt Single lever control assembly to permit disengagement between two functions
US4951520A (en) * 1988-11-17 1990-08-28 Outboard Marine Corporation Single lever control

Also Published As

Publication number Publication date
JPS4833590A (en, 2012) 1973-05-11
JPS5029240B2 (en, 2012) 1975-09-22

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