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June 6, 1950
T. R. TOOHEY
2,510,434
GARDEN TRACTOR WHEEL DRIVE
Filed July 27, 1946
2 Sheets-Sheet l
INVENTOR.
__/_?.750?e .
June 6, 1950 ‘
T. R. TOOHEY
2,510,434
GARDEN TRACTOR WHEEL DRIVE
"Filed July 27, 1946
2 Sheets-Sheet 2
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2,510,434
Patented June 6,v 1950
PAT
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$2,510,434
“GARDEN ‘TRACTORJ'WHEEL’YI
‘
:TimothyRiToohey, Gagetownf Mich.
.Applicati0l'l'li1ly27, 1946, Serial No. 686,619
3'3 :Glaims.
(Cli- 180-19)
.21
and 'an""enlarge'd flanged'po'rtion l3 to‘ which. a
This invention relatestopowerepropelled walk
ing cultivators and ‘the; like.
'EJ‘One of-Ithe primeobj'e'ctsYof" the‘ invention is to
simplify and otherwise improve *the'Iconstruc
tion so that'sthe"variousiparts'ithereof cooperate ‘*‘5
and function to render theoperation andcontrol
.oL the'fidevice simple, praétidaland positive.
.‘LAn'other .obj‘e‘ct‘is" to"de'si'gn .a.rugged,. practical
and economical "power 'ciiltivatonhaving. atvery
fabricated frame F is secured. . Hubs l4 form a
partof the housing assembly'and'are flanged as
;'at Hi to form‘ a' closure for the openings I2, said
hubs‘being'bored. to accommodate the shaft I6
‘on which a worm. wheel l‘! is mounted, said wheel
.meshing with and. beingjdriven ‘by a worm [8
which isin turn mounted ona longitudinallydis
posed. shaft. I 9 '-j ournaled. in bearing 20 provided
l’simplefdiifereh'tial means soithatit can-beacon ‘10 on the housing II. I
daa‘telyiturned‘ and contrbued arid-‘so that‘lthe. at
';ta}ched.tools- may ’ be accurately. maintained .with
respect to a-_row or rows bf vegetation being. cul
‘tivate'd, and'in a manner to meet all requirements
forsuccessfulaoperation.
.
Agfurther object stil1~¢is~.-~to design a-garden
:cultivatomcomposed of fewtpartsrall offIStan‘dard
construction, and which can be easily and eco
- Ratchet sleeves 2 l; are securely mounted‘on the
.projecting .ends of the shaftfl?and are keyed
lythereon in the conventional manner, and ratchet
pins 22 are mounted in openings 23 .provided on
“175 .theiouten end ywallstofthe housing'2i,..springs 24
rbeing. interposed between the bottomofthe. open
;ings'523 andthe .pin'l22 andtendto.forcethepins
outwardly and‘ into engagement with the tapered
slots 25 pivoted on the wheel hubs 9 and as will
20 be hereinafter more fully described.
the use of highly skilled labor.
The ground engaging wheels H) which are pro
With the above and other objects in view, the
vided on the outer ends of the axle A include the
present invention consists in the combination and
hubs 9 which are suitably bored to accommodate
arrangement of parts, hereinafter more fully de
axle shafts 26, one end of the axle projecting
scribed, illustrated in the accompanying draw
ings, and more particularly pointed out in the 25 into the end of the ratchet sleeves 2| and is
secured thereto by means of a pin 21, a collar
appended claims, it being understood that changes
28 being secured on the opposite end in the con
may be made in the form, size, proportion, and
ventional manner.
minor details of construction, without depart
The inner end of each wheel hub 9 is formed
ing from the spirit or sacri?cing any of the ad
30 with diametrically opposite tapered Slots 25 dis
vantages of the invention.
posed in alignment with the openings 23 in the
In the drawings:
housings 2|, the spring pressed ratchet pins 22
Fig. 1 is a side-elevational view of my walking
nomically manufactured and assembled without
cultivator.
normally driving against the end wall of the slot
25 when the cultivator is being driven, thus form
Fig. 2 is a top plan View thereof.
Fig. 3 is a detail showing the belt-tightening 35 ing a one-way clutch, the pins 22 ratcheting in
the slot as in the case when one wheel is re
mechanism, the broken lines showing the idler
tarded and the wheel at the opposite side over
swung free of the belt.
rides said retarded wheel as when turning etc.
Fig. 4 is an enlarged, sectional, elevational view
The fabricated frame F is mounted on the
taken on the line 4-4 of Fig. 2, the engine being
40 flanged portion l3 of the housing I! and is se
omitted.
'
cured therein in any desired manner, said frame
Fig. 5 is an enlarged, fragmentary, sectional
extending rearwardly and is connected by a
view illustrating the clutch pins, etc.
transversely disposed channel member 29, and
Fig. 6 is an end-elevational view of the wheel
individual teeth or soil agitating members T are
hub showing the slotted passages therein.
Fig. 7 is a fragmentary, plan illustrating the 45 secured thereto by means of a U-bolt 30 or the
like.
wedge-shaped slot in the wheel hub.
Rearwardly extending handles H are secured
Referring now more particularly to the draw
to the frame F in any desired manner, and braces
ings in which I have shown the preferred em
3| serve to properly brace the handles on the
bodiment of my invention, the numeral A indi
cates the axle of the {cultivator which includes 50 frame to suit the height desired.
The power plant P is mounted on the frame
wheel hubs 9 on which pneumatic tires II] are
F in any approved manner and a drive pulley 32
provided, all as clearly shown in Fig. 4 of the
is provided thereon as usual, a drive belt 33 serv
drawings.
ing to drivingly connect the pulley 32 with a pul
A worm wheel D forms a part of the axle and
comprises a housing I I having openings l2 therein 55 ley ‘34 provided on the projecting end of the worm
2,510,434
shaft [9 for driving the wheels II], and a tightener
mechanism S is provided for tightening the belt
33, said mechanism including a link 35 which is
pivotally mounted on the frame at the point
on one side of the cultivator when the wheel
hub and its wheel on one side over-rides the cor
responding wheel hub and its wheel at the op
posite side.
36, and an idler roller 31 is journaled on the
outer end of the link for engagement with the
belt 33.
A ?exible shaft 38 is mounted in a conduit 39,
the one end being secured to the idler link 35 at
3. A garden cultivator comprising in combina
tion a casing, a worm and worm wheel assembly
mounted therein and including an axle shaft, a
ratchet sleeve rigidly mounted on each of the
respective ends of the shaft, circumferentially
the point 40, thence leading upwardly along one 10 horizontally disposed spaced spring pressed pins
of the handles H and being pivotally connected
mounted in the one end of each sleeve, wheel
to one end of a lever member 4|, which lever is
hubs in longitudinal alignment with said axle and
pivotally connected to the clamp 42 at the point
including a shaft extending into said ratchet
43 so that as the lever is swung upwardly, the
sleeve and keyed thereto, wedge-shaped slots in
?exible shaft 38 will swing the link 35 to bring 15 the end wall of each hub in alignment with the
the roller 3'! into engagement with the belt to
pins, a prefabricated frame mounted on the eas
tighten and transmit motion from the power
ing, steering handles connected thereto, and a
plant to drive the mechanism.
power plant mounted on the frame and drivingly
The device is simple, rugged and practical; it
connected to said worm shaft.
is easily controlled and steered; the tools are 20
TIMOTHY R. TOOHEY.
readily changeable, and it is easy to drive and
steer.
REFERENCES CITED
What I claim is:
The
following
references are of record in the
1. A garden cultivator comprising a housing, a
?le of this patent:
worm wheel including an axle mounted in said 25
UNITED STATES PATENTS
housing, ratchet sleeves mounted on the opposite
ends of the axle, wheel hubs in alignment with
Number
Name
Date
the axle and sleeves, stub axles journaled in said
369,159
Burns ___________ __ Aug. 30, 1887
hubs and extending into said sleeves, circumfer
967,006
Feile _____________ __ Aug. 9, 1910
entially disposed, inclined slots in the end walls 30 1,189,207
Funk ____________ __ June 27, 1916
of the hubs, longitudinally disposed ratchet pins
1,403,080
1,869,746
2,412,705
2,433,709
mounted in said sleeves and extending into said
slots, a power plant mounted on the housing, and
means for drivingly connecting said power plant
and worm wheel.
2. The combination defined in claim 1 in which
the pins are spring-pressed and the slots tapered
to provide for ratcheting of the pins in the slot
35
Number
198,357
Hodge ____________ __ Jan. 10,
Hoke ____________ __ Aug. 2,
Jacques _________ __ Dec. 17,
Rogers __________ __ Dec. 30,
FOREIGN PATENTS
Country
1922
1932
1946
1947
Date
Great Britain _____ __ Dec. 6, 1923
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