US3745849A - Crown pinion gear drive for model railroad - Google Patents

Crown pinion gear drive for model railroad Download PDF

Info

Publication number
US3745849A
US3745849A US00128921A US3745849DA US3745849A US 3745849 A US3745849 A US 3745849A US 00128921 A US00128921 A US 00128921A US 3745849D A US3745849D A US 3745849DA US 3745849 A US3745849 A US 3745849A
Authority
US
United States
Prior art keywords
gear
drive
pinion gear
crown
pinion
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
US00128921A
Inventor
R Matte
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3745849A publication Critical patent/US3745849A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16H1/203—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with non-parallel axes
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/1966—Intersecting axes

Definitions

  • 74/416 drives for model railroads $0 to overwme the bucking 511 1111.01. Fl6h 1/12 and locking caused with worn g drive.
  • the device 581 Field of Search 74/416, 412 R, 665 GA comprising a drive Shaft with a pinion gear affixed thereto, the pinion gear engaging a crown gear integral
  • B mes M x gears take off power for transmitting to the wheels of a 2,807,052 9 1957 Longstreet.
  • Another object is to provide a crown pinion gear drive wherein the current draw is minimized by 25 percent, as the friction is not as great as with a worn gear drive that is pulling a heavy load.
  • Yet another object is to provide a crown pinion gear drive wherein motor synchronization is perfect, and which cannot be attained with a worn gear drive when two, three or more locomotives couple together.
  • Yet another object is to provide a crown pinion gear drive which eliminates the need to purchase a high priced transistor throttle with momentum control, with flywheel effect, and the like.
  • Yet another object is to provide a crown pinion gear drive wherein just an ordinary, inexpensive transformer rectifier is adaquate to get the results equivalent to use of a transistor throttle.
  • Yet a further object is to provide a crown pinion gear drive which is also adaptable for diesel equipment model railroading.
  • FIG. 1 is a top view of the invention.
  • FIG. 2 is a side view thereof.
  • FIG. 3 is a front view thereof.
  • the reference numeral 10 represents a crown pinion gear drive for model railroads according to the present invention, wherein there is a pinion shaft 11 having a pinion gear 12 secured thereto, the pinion gear 12 toothingly engaging a crown gear 13 that is integral with a pinion gear 14 as one integral unit along a common axis of a singular shaft.
  • the pinion gear 14 toothingly engages a drive gear 15 which in turn engages an idler gear 16 that engage a drive gear 17.
  • the drive gear engages a drive gear 18 to a wheel of the locomotive.
  • the drive gear 15 also directly engages drive gears 19 and 20 to the wheels 26 of the locomotive.
  • the idler wheel 16 is mounted on shaft 21, while drive wheels l7, l8, l9 and 20 are mounted on shafts 22, 23 24 and 25 respectively, as shown.
  • Drive gear 15 is on a shaft 27 while the crown gear shaft is identified by the reference numeral 28.
  • the pinion gear 12 and the crown gear 13 are l to 4 ratio.
  • the drawing is shown for a six wheel truck construction, but could be adapted for any number of otTsets such as 4, 8 or the like.
  • the invention could be adapted for any gauge of model railroad.
  • a gear drive for a model locomotive comprising a pinion shaft having a pinion gear engaging a crown gear whose axis is transverse to the pinion gear, said crown gear being integral and concentric with a second pinion gear, wherein said second pinion gear engages a main drive gear engaged by several spaced smaller drive gears having axis parallel to said main drive gear, said smaller drive gears actuating several locomotive. wheel units on axis transverse to said drive gears.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

An improvement over the conventional worn gear drives for model railroads so to overcome the bucking and locking caused with worn gear drive, the device comprising a drive shaft with a pinion gear affixed thereto, the pinion gear engaging a crown gear integral and an axial alignment as one unit with a pinion gear engaging a main drive gear from which several drive gears take off power for transmitting to the wheels of a locomotive of a model railroad.

Description

U Umted States Patent 91 [111 3,745,849 Matte July 17, 1973 [54] CROWN-PINION GEAR DRIVE FOR MODEL 2,968,971 1/1961 Beadle et al. 74/421 R X RAILROAD 3,199,372 8/1965 Kugel 74/665 GA 3,163,123 12/1964 Ziroli 74/416 X 1 Inventorr Roger Matte, General y. 3,350,953 11/1967 Stewart 74/412 x Zephyr, Ontario, Canada [22] Filed: Man 29, 1971 Primary Examiner-Leonard H. Gerin [21] Appl. No.: 128,921 [57] ABSTRACT An improvement over the conventional worn gear [52] us. Cl. 74/416 drives for model railroads $0 to overwme the bucking 511 1111.01. Fl6h 1/12 and locking caused with worn g drive. the device 581 Field of Search 74/416, 412 R, 665 GA comprising a drive Shaft with a pinion gear affixed thereto, the pinion gear engaging a crown gear integral [56] References Ci and an axial alignment as one unit with a pinion gear UNITED STATES PATENTS engaging a main drive gear from which several drive 455 54 6/189] B mes M x gears take off power for transmitting to the wheels of a 2,807,052 9 1957 Longstreet. 74 412 X locomot've of mode] 2,871,724 2/1959 Dencc 74/665 GA 1 Claim, 3 Drawing Figures CROWN-PINION GEAR DRIVE FOR MODEL RAILROAD This invention relates generally to drive mechanisms for model railroads.
It is generally well known to those skilled in the art of model railroading than in use of a conventional worn gear drive, there is considerable bucking and locking when the train consists of a heavy load of from 20 to 40 cars and is descending a grade along the track. What occurs is that the motor current is very little, and with the motor magnets also acting as a brake through its pole locks the worn drive. This is a of course objectionable and therefore in want of an improvement.
Accordingly, it is a principle object of the present invention to provide a new type of crown pinion gear drive that overcomes the above objection, because it provides a direct drive instead.
Another object is to provide a crown pinion gear drive wherein the current draw is minimized by 25 percent, as the friction is not as great as with a worn gear drive that is pulling a heavy load.
Yet another object is to provide a crown pinion gear drive wherein motor synchronization is perfect, and which cannot be attained with a worn gear drive when two, three or more locomotives couple together.
Yet another object is to provide a crown pinion gear drive which eliminates the need to purchase a high priced transistor throttle with momentum control, with flywheel effect, and the like.
Yet another object is to provide a crown pinion gear drive wherein just an ordinary, inexpensive transformer rectifier is adaquate to get the results equivalent to use of a transistor throttle.
Yet a further object is to provide a crown pinion gear drive which is also adaptable for diesel equipment model railroading.
Other objects are to provide a CROWN PINION GEAR DRIVE FOR MODEL RAILROADS which is simple in design, inexpensive to manufacture, rugged in construction, easy to use and efficient in operation.
These and other objects will be readily evident upon a study of the following specification and the accompanying drawing wherein:
FIG. 1 is a top view of the invention.
FIG. 2 is a side view thereof.
FIG. 3 is a front view thereof.
Referring now to the drawing in detail, the reference numeral 10 represents a crown pinion gear drive for model railroads according to the present invention, wherein there is a pinion shaft 11 having a pinion gear 12 secured thereto, the pinion gear 12 toothingly engaging a crown gear 13 that is integral with a pinion gear 14 as one integral unit along a common axis of a singular shaft. The pinion gear 14 toothingly engages a drive gear 15 which in turn engages an idler gear 16 that engage a drive gear 17. The drive gear engages a drive gear 18 to a wheel of the locomotive. The drive gear 15 also directly engages drive gears 19 and 20 to the wheels 26 of the locomotive. The idler wheel 16 is mounted on shaft 21, while drive wheels l7, l8, l9 and 20 are mounted on shafts 22, 23 24 and 25 respectively, as shown. Drive gear 15 is on a shaft 27 while the crown gear shaft is identified by the reference numeral 28.
It is to be noted that the pinion gear 12 and the crown gear 13 are l to 4 ratio.
The drawing is shown for a six wheel truck construction, but could be adapted for any number of otTsets such as 4, 8 or the like. The invention could be adapted for any gauge of model railroad.
While various changes may be made in the detail construction, it is to be understood that such changes will be within the spirit and scope of the present invention.
I claim:
1. A gear drive for a model locomotive comprising a pinion shaft having a pinion gear engaging a crown gear whose axis is transverse to the pinion gear, said crown gear being integral and concentric with a second pinion gear, wherein said second pinion gear engages a main drive gear engaged by several spaced smaller drive gears having axis parallel to said main drive gear, said smaller drive gears actuating several locomotive. wheel units on axis transverse to said drive gears.

Claims (1)

1. A gear drive for a model locomotive comprising a pinion shaft having a pinion gear engaging a crown gear whose axis is transverse to the pinion gear, said crown gear being integral and concentric with a second pinion gear, wherein said second pinion gear engages a main drive gear engaged by several spaced smaller drive gears having axis parallel to said main drive gear, said smaller drive gears actuating several locomotive wheel units on axis transverse to said drive gears.
US00128921A 1971-03-29 1971-03-29 Crown pinion gear drive for model railroad Expired - Lifetime US3745849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12892171A 1971-03-29 1971-03-29

Publications (1)

Publication Number Publication Date
US3745849A true US3745849A (en) 1973-07-17

Family

ID=22437623

Family Applications (1)

Application Number Title Priority Date Filing Date
US00128921A Expired - Lifetime US3745849A (en) 1971-03-29 1971-03-29 Crown pinion gear drive for model railroad

Country Status (1)

Country Link
US (1) US3745849A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226136A (en) * 1979-05-24 1980-10-07 Illinois Tool Works Inc. Gear drive assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226136A (en) * 1979-05-24 1980-10-07 Illinois Tool Works Inc. Gear drive assembly
FR2457421A1 (en) * 1979-05-24 1980-12-19 Illinois Tool Works LOW-DIMENSIONAL GEAR CONTROL DEVICE

Similar Documents

Publication Publication Date Title
US3745849A (en) Crown pinion gear drive for model railroad
GB517519A (en) Improvements in hydromechanical power transmission means for vehicles
GB717450A (en) Improvements in change-speed mechanism
GB1120380A (en) Railway truck drive system
GB1022518A (en) Hydrostatic transmission
GB489396A (en) Improvements in driving arrangements for vehicles
GB950816A (en) Improvements in reversible transmissions
GB793263A (en) Variable speed power transmission mechanism
GB657264A (en) Improvements in driving gears for the driven axles of vehicles
GB191111138A (en) Improvement in Change Speed Gearing for Tramcars, Rail-cars, Locomotives, and the like, Driven by Internal Combustion Engines.
AT167023B (en) Toy locomotive for mountain routes
GB525230A (en) Improvements in or relating to change speed gearing
GB443550A (en) Improvements in power-driven vehicles, more particularly locomotives and engine-driven carriages
GB522260A (en) Improvements in gear boxes particularly for motor vehicles
GB198126A (en) Improvements in or connected with worm gear
GB144180A (en) Improvements in or relating to power transmission mechanism for motor vehicles, or the like
GB1031810A (en) Driving bogie
GB484021A (en) Improvements in power transmission mechanism
GB244108A (en) Improvements in toothed wheel change speed gears
GB695564A (en) Improvements in or relating to mechanical transmission systems
GB435801A (en) Improvements in and relating to the electric drive of airscrew propelled cars and the like suspended from overhead tracks
GB726448A (en) Improvements relating to planetary-gearing
GB924058A (en) Drive for vehicle or vehicle bogie having two adjacent driving axles
GB190606899A (en) Improvements in Clutch Mechanism.
GB526408A (en) Individual axle drive for a diesel locomotive