NZ210535A - Disengageable coupling for starting small engine with power tool - Google Patents

Disengageable coupling for starting small engine with power tool

Info

Publication number
NZ210535A
NZ210535A NZ210535A NZ21053584A NZ210535A NZ 210535 A NZ210535 A NZ 210535A NZ 210535 A NZ210535 A NZ 210535A NZ 21053584 A NZ21053584 A NZ 21053584A NZ 210535 A NZ210535 A NZ 210535A
Authority
NZ
New Zealand
Prior art keywords
engine
engagement
link
crankshaft
slots
Prior art date
Application number
NZ210535A
Inventor
George Bodnar
Original Assignee
George Bodnar
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 George Bodnar filed Critical George Bodnar
Publication of NZ210535A publication Critical patent/NZ210535A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/6806—Driving mechanisms
    • A01D34/6818—Motor starting mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/12—Starting of engines by means of mobile, e.g. portable, starting sets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

210535 Priority Oate(s): »..
Complete Specification Filed: {'f. /.'?.'.
Class: Publication Date: .1 J??Zl P<0> Journal, Not «■••««»*«• • • • • • NEW ZEALAND PATENTS ACT. 1953 No.: Otic: COMPLETE SPECIFICATION POWER STARTER ATTACHMENT FOR LAWNMOWERS 4 OTHER APPLIANCES HAVING SMALL INTERNAL COMBUSTION ENGINES I/W«. GEORGE BODNAR of 61 Rodney Drive, Knoxfiild, V1c. 3180, AUSTRALIA, an Australian citizen hereby declare the invention for which I / we pray that a patent may be granted to jme/us, and the method by which it is to be performed, to be particularly described in and by the following statement: - 210535 This invention relates to a starter connection which furnishes a temporary connection between a starter motor and an engine to be started.
Difficulties in starting small engines are commonplace. For example, the weekend gardener will often experience difficulty in starting a garden mower using the conventional lanyard and pulley system, if the motor is cold or the spark-plug even slightly dirty.
Such a motor can be started by a skilled mower mechanic, using a socket attached to an electric drill engaged with the nut which secures the flywheel to the crankshaft. The problem is, of course, that, unless the socket is rapidly disengaged from the nut once the engine fires, the electric drill is Itself rotated causing a hazard to the mechanic or bystanders.
The object of the invention is to overcome the problem stated above and to provide a convenient means of starting a small internal combustion engine, if an electrically powered hand drill is available.
The invention, therefore, provides a starter connector which furnishes a temporary connection between a powered hand drill and an engine to be started, which comprises link means in combination with engagement means, the link means being adapted to connect the hand drill and the engagement means, the engagement means being adapted to connect to ' the crankshaft of the engine permanently and being adapted to disengage from the link means when the engagment means is rotating faster than the link means.
The engagement means may join the crankshaft directly, that is, -without modification of or addition to the crankshaft or it may require r. ' IYf987a seParate interlocking means, which interlocking means Is attachable to the crankshaft of the engine.
In another embodiment the engagement means is mounted on the handlebar of the lawn-mower and connected to the crankshaft by means of a flexible shaft assembly.
The Invention will now be Illustrated by reference to one embodiment, 1n which : Figure 1 1s an exploded, part-fragmentary, perspective view of a starter connector according to the Invention, shown in conjunction with a powered hand drill, an Interlocking means and a portion of an | engine to be started; Figure 2 is a cross-sectional view of the starter connector; and Figure 3 1s a cross-sectional view of the interlocking means.
Referring now to Figure 1, numeral 1 indicates the starter connector generally, 2 Indicates a link spindle and numerals 3 indicate projecting portions of an engagement pin. Spindle 2 may be gripped by chuck 4 connected to a power drill 5.
Numeral 6 indicates a crankshaft of a small engine such as in a lawn-mower (not shown). 7 indicates a flywheel and 8 a connecting nut.
Interlocking means 9 is provided with two diametrically opposite slots 10, shaped so they may accommodate ends 3 of the engagement pin. Each slot 10 points circumferentially in the same direction, anticlockwise in this case, and each slot has a sloping lead-in portion 11. 210515 In use, starter qp,nrt&Qtor Kis • gi Ipp«(Pl»y chuck I and interlocking means 9 1s connected to crankshaft 6. The starter connector 1 engages the Interlocking means 9 by means of ends 3 of the engagement pin and slots 10. Power drill 5 is started and crankshaft 6 forced to rotate. When the engine(not shown) fires, ends 3 ride out of slots 10 on 1ead-1n portions 11, the lead-in portions acting as cam surfaces.
Interlocking means 9 may be provided with an Internal, spring loaded protective cap (not shown) which extends upwards to the mouth of the interlocking means 9, once ends 3 have ridden out of slots 10, and starter connector 1 1s removed from Interlocking means 9. This protective cap partially seals the interior of interlocking means 9, acting as a safety device.

Claims (3)

  1. 2L053S 5 WHAT I CLAIM IS 1.
  2. A starter connector which furnishes a temporary connection between a powered hand drill and an engine to be started, which comprises link; means in combination with engagement means, the link means being adapted to connect the hand drill and the engagement means_, the engagement means being ' connected to the crankshaft of the engine permanently and being adapted to; disengage from the link means when the engagement means 1s rotating faster than the link means. 1, \ starter connector as claimed in claim 1, substantially as described with reference to Figures 1, 2 and 3.
  3. 3. A starter connector as claimed 1n claim 1 wherein said engagement means Is mounted away from the engine, on a handlebar of a lawn-mower arid is connected to the crankshaft of the lawn-mower engine to be started by! means of a flexible shaft assembly.; A. A device for starting a small internal combustion engine comprising a cup which is attached to the crankshaft of said engine, the open end of the cup being outwardly facing from the engine and a starter connector comprising a link spindle to be gripped by an electrically powered hand drill at one end of the spindle, a base attached to the other end of said spindle from which base extends a cylindrical shell, an engagement pin passing through the walls of the shell diametrically and providing a projecting portion exterior of said shell on each side, the open end of said cup having diametrically opposed slots therein to receive the projecting portions >cf said engagement pin, each of said slots having a sloping lead-in portion, each of said slots further having an overhanging lip to retain the projecting portion engaged therein, said engagement pin passing through the walls of said shell at a distance from its free end to form a skirt portion at the free end, the projecting portions being removed from said slots by the torque of the started engine. THIS^Zl^(|)AY A. J. PARK* SOW;A<5€fsrTS FOR THE APPllCA*«l °A. u ■ ^ ^ 0,:j OS
NZ210535A 1983-12-12 1984-12-12 Disengageable coupling for starting small engine with power tool NZ210535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPG279183 1983-12-12

Publications (1)

Publication Number Publication Date
NZ210535A true NZ210535A (en) 1987-03-31

Family

ID=3770437

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ210535A NZ210535A (en) 1983-12-12 1984-12-12 Disengageable coupling for starting small engine with power tool

Country Status (7)

Country Link
KR (1) KR850700150A (en)
BR (1) BR8407216A (en)
DE (1) DE3445369A1 (en)
GB (1) GB2160931B (en)
NZ (1) NZ210535A (en)
WO (1) WO1985002656A1 (en)
ZA (1) ZA849693B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013011978B3 (en) * 2013-07-18 2014-11-06 Andreas Reichart Starter unit for a mobile device with an internal combustion engine
JP5821057B1 (en) * 2014-10-21 2015-11-24 サーチウェア株式会社 vehicle
US10087905B2 (en) 2017-07-20 2018-10-02 Doyle Budden Method and apparatus for starting a small combustion engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE541415C (en) * 1929-12-20 1932-01-12 Eclipse Aviat Corp Device for accelerating an inertia starter for internal combustion engines, in particular aircraft engines
US2932292A (en) * 1956-06-12 1960-04-12 Joe C Trotter Engine starter
US3537436A (en) * 1968-07-01 1970-11-03 Clarence J Heisler Adapter mechanism for facilitating motorized starting of engines
GB1380643A (en) * 1972-01-05 1975-01-15 Bavin M J Coupling assembly
FR2487436A1 (en) * 1980-07-24 1982-01-29 Huicq Pierre Portable electric drill coupling for starting IC engine - formed with peg and slot system or tow cylinders with inclined teeth
US4372263A (en) * 1981-03-30 1983-02-08 Paul Costa Apparatus for starting internal combustion engines
US4531482A (en) * 1983-03-14 1985-07-30 Scheckel William D Starting device for gasoline engines

Also Published As

Publication number Publication date
KR850700150A (en) 1985-10-25
WO1985002656A1 (en) 1985-06-20
GB8519986D0 (en) 1985-09-18
ZA849693B (en) 1985-09-25
GB2160931A (en) 1986-01-02
DE3445369A1 (en) 1985-08-01
GB2160931B (en) 1988-01-06
BR8407216A (en) 1985-11-26

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