GB2332723A - Power transmitting device for a golf trolley - Google Patents

Power transmitting device for a golf trolley Download PDF

Info

Publication number
GB2332723A
GB2332723A GB9727269A GB9727269A GB2332723A GB 2332723 A GB2332723 A GB 2332723A GB 9727269 A GB9727269 A GB 9727269A GB 9727269 A GB9727269 A GB 9727269A GB 2332723 A GB2332723 A GB 2332723A
Authority
GB
United Kingdom
Prior art keywords
transmitting device
power transmitting
gear shaft
intermediate gear
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.)
Withdrawn
Application number
GB9727269A
Other versions
GB9727269D0 (en
Inventor
Shanq-Ching Shieh
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.)
SHIEH SHANQ CHING
Original Assignee
SHIEH SHANQ CHING
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 SHIEH SHANQ CHING filed Critical SHIEH SHANQ CHING
Priority to GB9727269A priority Critical patent/GB2332723A/en
Publication of GB9727269D0 publication Critical patent/GB9727269D0/en
Priority to GB9824297A priority patent/GB2332724A/en
Publication of GB2332723A publication Critical patent/GB2332723A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B55/00—Bags for golf clubs; Stands for golf clubs for use on the course; Wheeled carriers specially adapted for golf bags
    • A63B55/60—Wheeled carriers specially adapted for golf bags
    • A63B55/61—Wheeled carriers specially adapted for golf bags motorised
    • A63B2055/615—Units for converting manually-driven golf carts into motorised ones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/40—Sport articles
    • B62B2202/404—Golf articles, e.g. golfbags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0033—Electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0033—Electric motors
    • B62B5/0036—Arrangements of motors
    • B62B5/0046—One motor drives two wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0066—Transmission of movement

Abstract

A power transmitting device for a golf trolley includes an intermediate gear shaft 26 and an intermediate gear wheel 25 co-axially and co-rotatably connected to the intermediate gear shaft 26, an output gear 27 engaged with the intermediate gear shaft 26 and co-rotatably mounted to an axle 12 of the golf trolley, and an input gear shaft 24 engaged with the intermediate gear wheel 25. The input gear shaft 24 is driven by a motor and a speed reduction rate between the input gear shaft 24 and the output gear wheel 27 is in the range 30:1 to 38:1.

Description

POWER TRANSMITTING DEVICE FOR A GOLF TROLLEY This invention relates to a power transmitting device for a golf trolley.
Figures 1 and 2 of the accompanying drawings show a conventional golf trolley having a power transmitting device which is linked to a motor and includes a set of gears so as to enable a golfer effectively and easily to carry a set of golf clubs around a golf course.
The golf trolley generally includes a main frame 50 and a tube 51 transversely connected to a lower end thereof, an axle 55 rotatably received in the tube 51 so as to connect two wheels 52 to two ends thereof, and a tube 53 extending perpendicularly from the tube 51 so as to connect a front wheel 54 to a distal end thereof.
The power transmitting device includes a worm wheel 61 co-rotatably mounted to the axle 55, and a worm 64 engaged with the worm wheel 61, wherein the worm 64 is driven by the motor 63 which is powered by a battery means 62. In order to reach a suitable and economical r.p.m. output (2800 to 3750 r.p.m.) of the motor 63, a large speed reduction ratio is necessary in order to save the battery power and to have a suitable speed when in use. However, the large speed reduction ratio requires a large worm wheel 61 which results in considerable weight and consequent higher battery power consumption.
According to the present invention, there is provided a power transmitting device for a golf trolley and comprising: a multi-stage gear reduction means having an input shaft and an output shaft, wherein the reduction ratio is in the range from 30:1 to 38:1.
Preferably the reduction ratio is in the range from 30:1 to 34:1.
Preferably the multi-storage gear reduction means is a two-stage gear reduction.
Conveniently the device includes: an intermediate gear shaft and an intermediate gear wheel which is co-axially and co-rotatably connected to the intermediate gear shaft; an output gear wheel engaged with the intermediate gear shaft and adapted to be co-rotatably mounted to an axle of the golf trolley, and an input gear shaft engaged with the intermediate gear wheel and driven by a motor.
A desirable speed reduction ration is 31.06:1.
This can be achieved by an arrangement in which the input gear shaft has 8 teeth and the intermediate gear wheel has 43 teeth, and the output gear wheel has 52 teeth the said intermediate gear shaft has 9 teeth.
Preferably the shafts and gear wheels are bevel gears.
The power transmitting device of the present invention is intended to mitigate and/or obviate the above-mentioned problems associated with the known device.
The present invention provides a power transmitting device for a golf trolley, wherein the wheels of the golf trolley can rotate at 90 to 120 r.p.m. when the motor is actuated.
For a better understanding of the present invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 is a perspective view of a known golf trolley having a conventional power transmitting device; Figure 2 is an illustrative perspective view showing a worm engaged with a worm wheel and a motor of the conventional power transmitting device; Figure 3 is a perspective view of a golf trolley having an embodiment of a power transmitting device in accordance with the present invention; Figure 4 is an illustrative cut-away, perspective view showing an arrangement of the power transmitting device of the present invention; and Figure 5 is a section through the arrangement of the power transmitting device of Figure 4.
Referring to Figure 3, a golf trolley includes a main frame 10 having an upper end with a handle 100 and a lower end with a support 101, a truss assembly 11 connected below the main frame 10 and connected to the main frame by two rods 110 and an extension portion 111. A rotatable axle 12 extends transversely from the truss assembly 11 and has two wheels 13 connected to two ends of the axle 12. A front wheel 14 is rotatably connected to the extension portion 111 which is connected to the lower end of the main frame 10.
Further referring to Figures 4 and 5, a power transmitting device in accordance with the present invention generally includes a battery means 22 (Fig.
3) disposed on the truss assembly 11, a gear box housing 23 and a motor 21 which is powered by the battery means 22. In the gear box housing 23, an intermediate gear shaft 26 and an intermediate gear wheel 25 are co-axially and co-rotatably connected to each other; each of the intermediate gear shaft 26 and the intermediate gear wheel 25 are bevel wheels and respectively have 9 teeth and 43 teeth. An output gear wheel 27 being a bevel gear and having 52 teeth is engaged with the intermediate gear shaft 26 and corotatably mounted to the axle 12 of the golf trolley.
An input gear shaft 24 being a bevel gear and having 8 teeth is engaged with the intermediate gear 25 and directly driven by the motor 21. Other types of gears can be used without departure from the present invention. It is to be noted that a speed reduction rate between the input gear shaft 24 and the output gear wheel 27 is 31.06:1.
It is experienced that a golfer generally walks at a speed of 71-90 m/min and the diameter of the wheel 13 is typically 250 mm. As such, rotation of the wheels 13 at 90-120 r.p.m. is believed to meet the desired speed of movement of the golfer. Generally, as mentioned in the description of the prior art, a suitable and economical r.p.m. output for the motor 21 is 2800 to 3750 r.p.m. so that the speed reduction ratio of 31.06:1 will successfully reduce an output r.p.m. of the wheels 13 to 90-120 r.p.m..
The power transmitting device of the present invention can easily be fitted to golf trolleys presently used and has a compact size. Furthermore, the motor 21 is operated at a most efficient r.p.m. so that the motor will produce the desired power output and saves electricity of the battery 22. The golf trolley equipped with the power transmitting device of the present invention can handle most topographical conditions of the golf course and its speed meets the requirement of the golfer.

Claims (10)

1. A power transmitting device for a golf trolley and comprising: a multi-stage gear reduction means having an input shaft and an output shaft, wherein the reduction ratio is in the range from 30:1 to 38:1.
2. A power transmitting device according to claim 1, wherein the reduction ratio is in the range from 30:1 to 34:1.
3. A power transmitting device according to claim 1 or 2, wherein the multi-storage gear reduction means is a two-stage gear reduction.
4. A power transmitting device according to claim 3, wherein includes: an intermediate gear shaft and an intermediate gear wheel which is co-axially and co-rotatably connected to the intermediate gear shaft; an output gear wheel engaged with the intermediate gear shaft and adapted to be co-rotatably mounted to an axle of the golf trolley, and an input gear shaft engaged with the intermediate gear wheel and driven by a motor.
5. A power transmitting device according to claim 4, wherein the speed reduction ratio between the input gear shaft and the output gear wheel is 31.06:1.
6. A power transmitting device according to claim 5, wherein the input gear shaft has 8 teeth and the intermediate gear wheel has 43 teeth, and the output gear wheel has 52 teeth the said intermediate gear shaft has 9 teeth.
7. A power transmitting device according to claim 4, 5 and 6, wherein the intermediate gear shaft, the input gear shaft, the intermediate gear wheel and the output gear wheel are bevel gears.
8. A power transmitting device according to any preceding claim, wherein includes a compact housing.
9. A power transmitting device according to claim 1, substantially as hereinbefore described with reference to, and as illustrated in, Figures 3 to 5 of the accompanying drawings.
10. A golf trolley fitted with a power transmitting device according to any preceding claim.
GB9727269A 1997-12-24 1997-12-24 Power transmitting device for a golf trolley Withdrawn GB2332723A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9727269A GB2332723A (en) 1997-12-24 1997-12-24 Power transmitting device for a golf trolley
GB9824297A GB2332724A (en) 1997-12-24 1998-11-05 Power transmitting device for a golf trolley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9727269A GB2332723A (en) 1997-12-24 1997-12-24 Power transmitting device for a golf trolley

Publications (2)

Publication Number Publication Date
GB9727269D0 GB9727269D0 (en) 1998-02-25
GB2332723A true GB2332723A (en) 1999-06-30

Family

ID=10824183

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9727269A Withdrawn GB2332723A (en) 1997-12-24 1997-12-24 Power transmitting device for a golf trolley
GB9824297A Withdrawn GB2332724A (en) 1997-12-24 1998-11-05 Power transmitting device for a golf trolley

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9824297A Withdrawn GB2332724A (en) 1997-12-24 1998-11-05 Power transmitting device for a golf trolley

Country Status (1)

Country Link
GB (2) GB2332723A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006061032A1 (en) * 2004-12-06 2006-06-15 Stefan Haas Foldable golf caddie
DE102005011507A1 (en) * 2005-03-12 2006-09-21 Pomutz, Manfred, Dipl.-Ing. Electromotive drive device
US9869999B2 (en) 2015-10-16 2018-01-16 Lemmings, Llc Robotic golf caddy
US10649451B2 (en) 2015-10-16 2020-05-12 Lemmings, Llc Robotic golf caddy

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB413281A (en) * 1933-01-10 1934-07-10 Asea Ab Improvements in toothed gearing or toothed geared motors
GB515861A (en) * 1937-06-29 1939-12-15 Suzanne Rosalie Jourjan Improvements in speed reducing gear particularly applicable to the drive of motion picture cameras
US3941198A (en) * 1974-08-29 1976-03-02 Kappas Chris S Detachable power unit for a golf bag cart
GB2076928A (en) * 1980-06-03 1981-12-09 Mitsubishi Electric Corp Reducing gear vibration in elevator apparatus
GB2123362A (en) * 1982-04-08 1984-02-01 Wheelpower Limited A self-propelling hub unit
GB2126315A (en) * 1982-09-03 1984-03-21 Mitsubishi Electric Corp Traction machine for an elevator
GB2224984A (en) * 1988-10-01 1990-05-23 Francis Vause Wheel with self-contained drive assembly, eg. for carts or golf trolleys
GB2318104A (en) * 1996-10-11 1998-04-15 Wu Jung Cheng Electrically-drivable golf trolley

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB413281A (en) * 1933-01-10 1934-07-10 Asea Ab Improvements in toothed gearing or toothed geared motors
GB515861A (en) * 1937-06-29 1939-12-15 Suzanne Rosalie Jourjan Improvements in speed reducing gear particularly applicable to the drive of motion picture cameras
US3941198A (en) * 1974-08-29 1976-03-02 Kappas Chris S Detachable power unit for a golf bag cart
GB2076928A (en) * 1980-06-03 1981-12-09 Mitsubishi Electric Corp Reducing gear vibration in elevator apparatus
GB2123362A (en) * 1982-04-08 1984-02-01 Wheelpower Limited A self-propelling hub unit
GB2126315A (en) * 1982-09-03 1984-03-21 Mitsubishi Electric Corp Traction machine for an elevator
GB2224984A (en) * 1988-10-01 1990-05-23 Francis Vause Wheel with self-contained drive assembly, eg. for carts or golf trolleys
GB2318104A (en) * 1996-10-11 1998-04-15 Wu Jung Cheng Electrically-drivable golf trolley

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006061032A1 (en) * 2004-12-06 2006-06-15 Stefan Haas Foldable golf caddie
DE102005011507A1 (en) * 2005-03-12 2006-09-21 Pomutz, Manfred, Dipl.-Ing. Electromotive drive device
DE102005011507B4 (en) * 2005-03-12 2007-04-19 Pomutz, Manfred, Dipl.-Ing. Electromotive drive device for a golf bag
US9869999B2 (en) 2015-10-16 2018-01-16 Lemmings, Llc Robotic golf caddy
US10649451B2 (en) 2015-10-16 2020-05-12 Lemmings, Llc Robotic golf caddy
US10962971B2 (en) 2015-10-16 2021-03-30 Lemmings, Llc Robotic vehicle
US11733695B2 (en) 2015-10-16 2023-08-22 Lemmings, Llc Robotic vehicle

Also Published As

Publication number Publication date
GB2332724A (en) 1999-06-30
GB9727269D0 (en) 1998-02-25
GB9824297D0 (en) 1998-12-30

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)