US3665774A — Driving assembly

Claim 1

Independent Claim 260 words

A driving assembly for mechanical toys and other low power consumers, said assembly comprising in combination: a housing; drive means; a first and a second input gear, said gears being selectively mountable on said housing for driving the selected gear by said drive means; a first shaft rotatably supported by said housing; a first transmission means including a gear and a pinion secured to each other and fixedly seated on said shaft, said gear being engageable with the first input gear for driving the shaft via said gear by the drive means; a second transmission means including a gear and a pinion fixedly secured to each other and freely rotatable on said shaft, said gear of the second transmission means being engageable with the second input gear for driving the said second input gear by the drive means; the diameters of the gears of the first and second transmission means being different from each other; a second shaft rotatably supported by the housing; a third transmission means including a gear and a pinion secured to each other and seated freely rotatable on the second shaft, the gear of the third transmission means being in mesh with the pinion of the second transmission means; a rotatably mounted output gear, said output gear being in mesh with the pinion of the first transmission means and the pinion of the third transmission means, whereby the rotational speed of the output gear is variable by selecting either the first or the second input gear for driving the output gear via the selected input gear.

Claim 2

Dependent Claim 260 words

A driving assembly for mechanical toys and other low power consumers, said assembly comprising in combination: a housing; drive means; a first and a second input gear, said gears being selectively mountable on said housing for driving the selected gear by said drive means; a first shaft rotatably supported by said housing; a first transmission means including a gear and a pinion secured to each other and fixedly seated on said shaft, said gear being engageable with the first input gear for driving the shaft via said gear by the drive means; a second transmission means including a gear and a pinion fixedly secured to each other and freely rotatable on said shaft, said gear of the second transmission means being engageable with the second input gear for driving the said second input gear by the drive means; the diameters of the gears of the first and second transmission means being different from each other; a second shaft rotatably supported by the housing; a third transmission means including a gear and a pinion secured to each other and seated freely rotatable on the second shaft, the gear of the third transmission means being in mesh with the pinion of the second transmission means; a rotatably mounted output gear, said output gear being in mesh with the pinion of the first transmission means and the pinion of the third transmission means, whereby the rotational speed of the output gear is variable by selecting either the first or the second input gear for driving the output gear via the selected input gear.

Claim 3

Dependent Claim 32 words

The driving assembly according to claim 1 whereiN said first and second input gears have different diameters thereby varying the ratio of transmission between the selected input gear and the output gear.

Claim 4

Dependent Claim 49 words

The driving assembly according to claim 1 wherein said drive means comprises an electric motor having a drive shaft protruding at opposite ends of the motor, one of said input gears being mounted on one protruding shaft end, and the second input gear on the other protruding shaft end.

Claim 5

Dependent Claim 21 words

The driving assembly according to claim 1 and comprising a driven axle, said axle being drivingly coupled with said output gear.

Claim 6

Dependent Claim 24 words

The driving assembly according to claim 4 and comprising a second driven axle, said second axle being also drivingly coupled with the output gear.

Claim 7

Dependent Claim 37 words

The driving assembly according to claim 1 wherein said drive means comprises an electric motor and said housing having on its outside a seat for supporting the motor and locating the same with reference to the housing.

Claim 8

Dependent Claim 45 words

The driving assembly according to claim 6 wherein said seat is formed by a side wall portion of the housing and a lug protruding from the outer wall of the housing, said motor fitting in the space defined by said side wall and said lug.

Claim 9

Dependent Claim 33 words

The driving assembly according to claim 7 wherein said housing comprises an extension, said lug being provided at the free end of said extension, said extension constituting a support base for the motor.

Claim 10

Dependent Claim 44 words

The driving assembly according to claim 7 wherein the motor comprises a casing having two opposite substantially parallel side walls, said side walls being in abutment with said side wall of said housing and the lug when the motor is fitted in said space.

Claim 11

Dependent Claim 25 words

The driving assembly according to claim 9 wherein the motor casing has a recess in the outer wall, said lug being engageable with said recess.

Claim 12

Dependent Claim 29 words

The driving assembly according to claim 9 wherein contact jacks adapted for connection with commutator brushes of the motor are mounted in a side wall of the motor casing.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-05-30	1975-11-29	1976-05-30	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-05-30	1979-11-29	1980-05-30	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-05-30	1983-11-29	1984-05-30	$7700.00	Window Closed / Lapsed

Driving assembly

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