US3744592A

US3744592A - Mechanical rotary device

Info

Publication number: US3744592A
Application number: US00236880A
Authority: US
Inventors: A Neuman
Original assignee: Individual
Current assignee: Individual
Priority date: 1972-03-22
Filing date: 1972-03-22
Publication date: 1973-07-10
Anticipated expiration: 1990-07-10

Abstract

A mechanism for producing a low power output and which is accordingly adaptable for moving relatively light weight objects, the mechanism consisting of a base upon which a pair of spaced apart pedestals are mounted, the pedestals supporting a stationary shaft to which a housing assembly positioned between the pedestals is secured, the housing containing a sprocket mounted freely rotatable on the shaft but being attached thereto by means of spiral leaf spring, the sprocket driving a second sprocket on a spindal mounted on an eccentric part of the housing so to rotate around the shaft, the spindal having a first gear fastened thereto which through an idle gear engages a gear mounted rotatably free on the shaft and which is integral with a cylindrical hub provided with openings there around that are selectively engageable by a pin slidable supported upon the pedestal.

Description

United States Patent 1 Neuman [1111 3,744,592 1 July 10, 1973 1 MECHANICAL ROTARY DEVICE [76] inventor: Albert ll. Neuman, 1089 (andlcwood Road. Elgin. 111. 601 20 [22] Filed: Mar. 22, 1972 [21] Appl. No.: 236,880

[52] US. Cl. 185/37, 74/78l R, 185/39 [51] Int. Cl. F03g 1/00 [58] Field of Search 185/37, 39;

[56] References Cited UNITED STATES PATENTS 1,723,484 8/1929 Krepps 185/37 297,725 4/1884 Stansbury.'.. 185/39 702,243 6/1902 Parcells 74/781 R 836,853 11/1906 Anderson... 185/37 X 1,681,393 8/1928 Burton 185/37 Primary Examiner-Allan D. l-lerrmann [57] ABSTRACT A mechanism for producing a low power output and which is accordingly adaptable for moving relatively light weight objects, the mechanism consisting of a base upon which a pair of spaced apart pedestals are mounted, the pedestals supporting a stationary shaft to which a housing assembly positioned between the pedestals is secured, the housing containing a sprocket mounted freely rotatable on the shaft but being attached thereto by means of spiral leaf spring, the sprocket driving a second sprocket on a spindal mounted on an eccentric part of the housing so to rotate around the shaft, the spindal having a first gear fastened thereto which through an idle gear engages a gear mounted rotatably free on the shaft and which is integral with a cylindrical hub provided with openings there around that are selectively engageable by a pin slidable supported upon the pedestal.

3 Claims, 5 Drawing Figures MECHANICAL ROTARY DEVICE This invention relates generally to drive mechanisms.

A principal object of the present invention is to provide a mechanical rotary device for producing a low power output.

Another object of the present invention is to provide a mechanical rotary device for producing a low power output that may be used for movable light weight objects.

Still another object of the present invention is to provide a mechanical device which accordingly would be suitable for incorporating into constructions such as are used in movable advertising wherein parts made of cardboard or paper are moved so to attract the attention of a prospective purchaser.

Still another purpose of the present invention is to provide a mechanical rotary device in which no external source of energy is required, other than the necessity of a person winding up a clock main spring.

Still another purpose of the present invention is to provide a mechanical rotary device wherein the clock main spring will not unwind once it is wound up.

Other objects of the present invention are to provide a mechanical rotary device 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 side elevation view of the present invention.

FIG. 2 is an end view taken in the direction 2-2 of FIG. 1.

FIG. 3 is a cross sectional view of the spring mechanism as viewed on line 3--3 of FIG. 1.

FIG. 4 is an end view taken on line 44 of FIG. 1.

FIG. 5 is a schematic diagram shown in perspective and illustrating the operating components of the present invention.

Referring now the drawings in detail, the reference numeral represents a mechanical rotary device according to the present invention wherein there is a face 11 upon which there are a pair of spaced apart pedestals l2 and 13 secured thereto by means of mounting bolts 14.

A stationary shaft 15 is mounted upon the pedestals l2 and 13, and is stationarily secured thereto by means of set screws 16. The stationary shaft 15 extends accross a space 17 between the pedestals 12 and 13, andacylindricalconfigurated housing 18 with a circular housing cover 19 secured thereto are mounted rotatable free upon the shaft 15, the housing and housing cover being located within the space 17 between the pedestal. Accordingly the housing cover 19 is secured to the housing by means of screws 20 located around the edge area of the housing cover and housing. Accordingly the housing assembly in order to be rotatable on the stationary shaft 15 include a ball bearing 21 in the housing and a ball bearing 22 in the housing cover.

At an eccentric part of the housing unit, there is a transverse extending spindal 22 supported at one end in a ball bearing 23 in the housing, and at its other end supported in a ball bearing 24 in the'housing cover. Accordingly the spindal 22 abridges a central space 25 within the interior of the housing unit.

A spiral leaf spring 26 is fitted around the stationary shaft 15, an inner end of the spring 26 being secured by means of pin 27 to the stationary shaft 15, and the outer end of the spring 26 being attached by means of pin 28 to the inner side of a cylindrical spring case 29 and which is attached on one end wall 30 to a first sprocket 31 that is mounted rotatably free upon the stationary shaft 15. A roller chain 32 is passed around the first sprocket 31 and a second sprocket 31' that is stationarily mounted on the spindal v22 by means of a set screw 32' in a hub of the second sprocket 31.

A first gear 33 is stationarily mounted on the spindal 22 by means of a set screw 34 in the hub of the first gear. The first gear 33 toothingly engages an idler gear 35 which toothingly engages a last. gear 36 mounted rotatably free on the stationary shaft 15. The idler gear 35 is mounted upon an adjustable spindal 37 in a suitable bushing 38 supported in a slot 39, of the housing cover.

The last gear 36 is integral with a hub 40 that extends through the ball bearing 22 and outwardly of the housing cover, and the outer end of the hub 40 is provided with a plurality of pin openings 41 around the side thereof, the pin openings 41 being selectively engageable with a locking pin 42 supported upon a block 43 which is mounted upon the pedestal 12.

A pinion gear 44 is integral with a flange 45, the pinion gear and flange having a central opening there through so that the stationary shaft 15 extends there through, and the flange 45 is secured to the housing 18 by means of screws 46. The pinion gear 44 toothingly engages a large gear 47 fastened on an output shaft 48 supported rotatably free in ball bearings 49 of the pedestal 13.

In operative use, with pin 42 engaged in one of the openings 41., the mechanism is wound up by rotating the housing unit around the stationary shaft so that the spring 26 becomes wound up. The mechanism thus en ergized is adaptable to provide a low power output to the output shaft 48 so that it may be used for moving light weight objects such as advertising matter made up of cardboard or paper. The extending end of shaft 15 optionally can be used for another complete housing unit for increased power, if so desired.

What I now claim is:

1. In a mechanical rotary device, the combination of a base, a pair of spaced apart pedestals mounted upon said base, said base supporting a stationary shaft secured to said pedestals by means of said screws, and a housing unit positioned between said pedestals being mounted rotatable free upon said stationary shaft, said housing unit including a cylindrical housing and a circular housing cover secured thereto so to form a housing chamber therewithin, said chamber containing a spring driven mechanism, said spring driven mechanism comprising a leaf spiral spring fitted around said stationary shaft, an inner end of said spiral spring being secured to said stationary shaft, an outer end of said spring being secured to a housing around said spring and which is firmly secured to a side of a first sprocket mounted rotatably free upon said stationary shaft, said first sprocket by means of an endless roller ch'ain driving a second sprocket secured upon a spindle extending transversely through an eccentric part of said housing unit, said spindle being supported rotatably free in bearings of said housing unit, and said spindle having a first gear secured thereto, said first gear toothingly engaging an idler gear which tootlhingly engages a last gear mounted rotatably free upon said stationary shaft.

3. The combination as set forth in claim 2 wherein a pinion gear integral with a flange has a clearance open-' ing there through for said stationary shaft and is mounted to a side of said housing unit, said pinion gear ing pin supported slideably free on a block secured to 5 engaging a large gear mounted on an output shaft.

Claims

1. In a mechanical rotary device, the combination of a base, a pair of spaced apart pedestals mounted upon said base, said base supporting a stationary shaft secured to said pedestals by means of said screws, and a housing unit positioned between said pedestals being mounted rotatable free upon said stationary shaft, said housing unit including a cylindrical housing and a circular housing cover secured thereto so to form a housing chamber therewithin, said chamber containing a spring driven mechanism, said spring driven mechanism comprising a leaf spiral spring fitted around said stationary shaft, an inner end of said spiral spring being secured to said stationary shaft, an outer end of said spring being secured to a housing around said spring and which is firmly secured to a side of a first sprocket mounted rotatably free upon said stationary shaft, said first sprocket by means of an endless roller chain driving a second sprocket secured upon a spindle extending transversely through an eccentric part of said housing unit, said spindle being supported rotatably free in bearings of said housing unit, and said spindle having a first gear secured thereto, said first gear toothingly engaging an idler gear which toothingly engages a last gear Mounted rotatably free upon said stationary shaft.

2. The combination as set forth in claim 1 wherein said last gear has a hub extending outwardly of said housing unit, said hub having a plurality of pin openings around the side thereof for selectively engaging a locking pin supported slideably free on a block secured to one of said pedestals.

3. The combination as set forth in claim 2 wherein a pinion gear integral with a flange has a clearance opening there through for said stationary shaft and is mounted to a side of said housing unit, said pinion gear engaging a large gear mounted on an output shaft.