US2249441A - Spring motor - Google Patents

Spring motor Download PDF

Info

Publication number
US2249441A
US2249441A US30030439A US2249441A US 2249441 A US2249441 A US 2249441A US 30030439 A US30030439 A US 30030439A US 2249441 A US2249441 A US 2249441A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
gear
shaft
internal
housing
portion
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
Inventor
William S Sussman
Original Assignee
William S Sussman
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
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/28Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B26B19/32Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive providing for mechanical drive, e.g. installation of a spring motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G1/00Spring-motor

Description

`July 15;` 1941. w. s. sussMm 2,249,441

SPRING MOTOR Filed o ot. 20, 1939 Patented July 15, 1941 UNETED STATES PATENT @FHS/E. 2,249,441 n SPRNG MOTOR William S. Sussman, New York, N. Y. Application October 20, 1939, Serial No. 360,304

(Cl. 18S- 37) 4 claims.

This invention relates to new and useful improvements in spring motors and relates more particularly to an improved compact motor which, while so designed as to occupy a minimum amount of space, will nevertheless store a considerable amount of energy and will deliver a far greater amount of power than existing devices of this character. y

One of the principal objects of the present invention is the provision of a small unitary prime mover adapted to be driven by a spring, the device ,being particularly adapted for driving a razor with a moving blade, the various operative parts being so arranged as to be entirely enclosed with a relatively small housing of such size as to be conveniently held in the hand of the user during the shavingoperation.

Another object:of thejinvention is the provision of a novel `spring motor of small dimensions and having a novel arrangement of gears adapted to rotate a drive shaft at considerably higher speeds than presently known spring motors, and to operate without appreciable loss from friction. L

Yet another object YofY the invention is the provision of a` relatively high speed` spring motor having a train of speed increasing gears housed within a small area and supported by a novel frame-structure having a minimum of weight.

Whereas the'present invention is illustrated as being used inV connection with a mechanical shavenit nevertheless will have a variety of uses such as for driving a small current generator in a ashlight and for many other uses.

A still further object of the invention is the provision of an improved spring motor with aA train of gears all enclosed within a relatively small, elongated casing, such casing havingassociated therewith novel spring winding meansv free vfrom any projecting partsrsuch as cranks or the like. v l

Other objects of the invention will be hereafter specifically pointed out or will appear obvious as the specification proceeds.

Fig. 1 is a longitudinal, vertical section taken through a preferred embodiment of the present invention;4 i

Fig. 2- is a top plan view thereof;

Fig-Sis a transverse, horizontal on Vline S--S of Fig. l; l

Fig. 4 is a transverse, horizontal section taken on line Ill-I of Fig. l; Y

Fig. 5 is a side elevation, partially in section, of one of the internal gear structures; and

section taken Fig. Gis a transverse vertical section. taken through one of the support means for such internal gear structures. Y

`The preferred embodiment of theginvention includes a plurality of springs H53 contained within a cylindrical housing IH, such housing being provided with an integrally formed lower wall |-|2. The springs are also secured at their inner terminals ||3 to a central vertical shaft H4 provided with a reduced-portion H5 at its upper end, such reduced portion being journalled within a recess H16 formed in av mainV drive shaft H8. f

A rotatable cylindrical housing H9 is formed integrally with such shaft Il, such vhousing enclosing the springs H0, the outer terminals |23 of which are secured to the inner wall of such housing. After the springs have been wound, the inner terminalsthereof are held immovable, since the shaft H4 is itself immovable except when the springs are being wound. The outer terminals of the springs, however, impartv rotative movement to the housing |9- carried by the drive shaft HB. A closure disc |23 is carried at the lower end of housing H9, the disc having a central aperture throughwhich the lower end of shaft M passes,` the shaft also passinglthrough a central aperture |24 in the lower wall |l2 of housing At its llower "end, the shaft is i, threaded as shown at |25 andthis threaded portion is received in a threaded aperture |25 in an enlarged portion |21 of the base wall |28 of a base cap |29. This cap is carried on the exterior of housing and it will be seen lthat as this cap is manually turned, the vsprings ||ll are wound. Unwinding of the spring is prevented byV means of a ratchet wheel I3! secured to the threaded portion |25 of shaftY IA, such ratchet wheel being engaged vby aconventional pawl |32 `,which is pivotally mounted-on the lower surface of base wall l I2. Y

The upper end of housing i|| is internally threaded as shown at |35 and is secured to an externally threaded fportion of a base |36 of a frame structure which supports a train of gears, now to be described. A gear |50 having internal teeth MI is keyed to the upper end of main drive*V shaft H3 by meansof a set screw |43. This gear H0 is supported -in an annular recessed portion of frame structure |36 and the internal teeth of this gear engage a smaller gear |45 pivotally mounted at |41 on the lower surface of a stationary supporting structure |50, shown in detail in' Fig. 6. This structure is desirably formed in one piece and includes an annular portion |5| having a lower reduced annular portion |52, an internal annular seat |53 being formed substantially midway between A plurality of these supporting structures |50 are placed one upon the other, the lower reduced portion |52 being received within the upper portion of the next upper supporting structure and resting upon seat |53. The reduced portion |52 of lowermost support I 50 is received within a recess at the upper end of frame structure |36, the external diameter of annular portion |5| being the same as the external diameter of the upper extension of frame |36. The support is further formed with vertical apertures |55 on opposite sides thereof, elongated bolts |51 passing through the aligned apertures in the several supports 50, such bolts being threaded at their lower terminals and being positioned within threaded apertures |59 in base structure |36.

Support |50 is further formed with a lower base portion |56 having a central aperture |58. It will thus be apparent that as internal gear |40 mounted on main drive shaft I8 rotates, it imparts rotation to smaller gear |46, which gear meshes with a gear |65 mounted at the lower end of gear structure I 6'2 (Fig. 5) having internal gear teeth |63, a hollow bushing |64 connecting small gear 65 with the main portion of structure |62. A4 central vertical shaft |61 freely journalled at its lower end in a central aperture |68 in the lowermost internal gear |40 passes through a central aperture |69 in gear structure |62, the latter being freely journalled on such shaft and accordingly such gear structure is driven more rapidly than gear |40, depending upon the ratio between such internal gear and gear |65,

The central aperture |58 in support |50 is of sufficient diameter to receive small gear |65 and the gear structure |62 is supported on the lower base portion 56 of support 50. The number of such speed increasing structures is dependent upon the speed desired, five being illustrated in the drawing. The uppermost internal gear structure, designated as |62', is received in a support |10 of greater depth than the other supports |50, a seat portion |1| near the upper end thereof receiving a journal member |13 having a central aperture |14 in a depressed porion |15 thereof. This aperture acts as the upper bearing for shaft |61 and such aperture has a reduced portion |16 which forms the lower bearing for a drive shaft |18. This shaft carries a gear |19 at the lower end thereof, such gear engaging a gear |80 pivotally mounted on a shaft |8| which is carried on the lower surface of a circular, upper frame.

member |82. This latter gear |80 is rotated by engagement with the teeth of upper internal gear structure |62 and an aperture |84 is formed in journal member |13 to receive this gear. Thus rotative movement is transmitted from uppermost internal gear |62' to gear |80, and to gear |19 keyed to shaft |18.

Upper frame member |82 is secured in place by means of nuts |81 carried at the upper-end of bolts |51 and this frame is provided with integrally formed, upwardly extending portions |88 which merge into threaded collar portion |89. These portions are curved, although such curvature is not apparent in Fig. l.

A governor controls the speed of shaft |18, such governor being similar to that shown in the preferred embodiment and includes a fixed cup |9| mounted on the upper surface of frame the upper and lower ends of portion.

|82 and a rotatable cup |92 having a collar |93 75 secured to shaft |18, the latter cup enclosing the former. Arms are pivotally mounted at |96 within rotatable cup |92 as in the preferred embodiment. Likewise, a lever |91 centrally pivoted at |98 is urged against cup |92 by means of spring |99, the opposite end of such lever carrying a finger depressing portion 200 positioned within a suitable aperture in a tapered cylindrical gear housing 20|.

This embodiment of the invention may be used for a variety of purposes and in the present instance it is shown as furnishing power for a mechanical razor having a head portion 284, supported by a nut 205 carried on the threaded portion of collar |89. In this instance, power for the moving cutter designated as 206 is furnished through the center shaft |18 and the shaving head is shown as being centrally positioned on the supporting nut 205.

In the event, however, that it is desired to connect a drive shaft to one or both ends of the moving element within the shaving head instead of to the center thereof, the power may be taken olf at the side, as from the gear |80. In the arrangement shown, however, the motor may also be used to operate a small power drill or screwdriver, or it may be used to operate a rotatable toothbrush. The foregoing are only a few of the many possible uses to which the motor may be put. If the motor is to be run for any considerable length of time, the heat which Vmay generate in the gear train may well be insulated from the outer housing 20| by filling the annular'recess between the superimposed supporting members |50 and such housing with suitable insulating material such as mineral wool.

It will also be apparent that this embodiment of the invention may be modified considerably without departing from the spirit of the invention, as dened by the appended claims.

What I claim is:

1. A spring motor comprising a substantially cylindrical housing, a coiled spring positioned within the housing and being secured thereto at its outer terminal, a winding shaft journalled in the center of the housing, the inner end of thespring being secured to said shaft, exteriorly disposed winding means secured to such shaft, a drive shaft carried by the housing, a driven shaft spaced from but in axial alignment with the drive shaft, and a plurality of trains of speed multiplying gears positioned in superimposed relationship between the two shafts to impart higher speed of rotation to the latter than the former, each train comprising an internal gear structure, the lowermost of said structure beingl carried by the drive shaft, a central driven gear carried by and spaced below each successive internal gear, and an idler gear between the internal gear and the driven gear carried by the next successive internal gear.

2. A spring motor comprising a substantially cylindrical housing formed with an end wall, a fiat, 'coiled spring positioned within the housing and being secured thereto at its outer terminal, a winding shaft journalled in the center of the housing, the inner end of the spring being secured to said shaft, exteriorly disposed winding means including a winding cap secured to such shaft, a drive shaft formed on the end wall of the housing, a driven shaft spaced from but in axial alignment with the drive shaft, a governor carried by the driven shaft, and a plurality of trains of speed multiplying gears positionedl in superirnposed relationship between the two shafts tn impart higher speed of rotation to the latter than the former, each train comprising an internal driving gear structure and a central driven gear carried by and spaced below each internal gear, an idler gear between the internal gear and the driven gear carried by the next successive internal gear, the lowermost internal gear being 'carried by the drive shaft, the gears in the several trains having aligned apertures therein, and a supporting shaft passing through such apertures.

3. A spring motor comprising a substantially cylindrical housing, a flat, coiled spring positioned within the housing and being secured thereto at its outer terminal, a winding shaft journalled in the center of the housing, the inner end of the spring being secured to said shaft, and exterior- 1y disposed winding means secured to such shaft, a drive shaft carried by the housing, a driven shaft spaced from but in axial alignment with the drive shaft, and a plurality of frame structures positioned in superimposed relationship between the two shafts and a train of speed multiplying gears supported by each frame structure for imparting higher speed of rotation to the latter shaft than the former, each train comprising an internal driving gear structure, the lowermost of said structure being carried by the drive shaft, and a substantially small central driven gear formed integrally with and spaced below the internal gear, and an idler gear journalled on each outer terminal,- a winding shaft journalledin the'V` center of the housing, the inner end of the spring being secured to said shaft, a frame structure including a portion extending below the housing, a Y

spring pressed pawl carried thereon and a ratchet wheel carried on the shaft, a winding cap secured l at the lower end of the shaft, a drive shaft secured to the upper wall of the housing, a driven shaft spaced from but in axial alignment with the drive shaft, a governor carried by the driven shaft, and a plurality of trains of speed multiplying gears positioned in superimposed relationship between the two shafts to impart higher speed of rotation to the latter than the former, each train comprising an internal driving gear structure and a central driven gear carried by and spaced below each internal gear, an idler gear between the internal gear and the driven gear carried'by the next successive internal gear, the lowermost internal gear being carried by the drive shaft, the gears in the several trains having aligned apertures-therein, and a supporting shaft passing through such apertures. y,

WILLIAM S. SUSSMA1\I.

US2249441A 1939-10-20 1939-10-20 Spring motor Expired - Lifetime US2249441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2249441A US2249441A (en) 1939-10-20 1939-10-20 Spring motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2249441A US2249441A (en) 1939-10-20 1939-10-20 Spring motor

Publications (1)

Publication Number Publication Date
US2249441A true US2249441A (en) 1941-07-15

Family

ID=23158541

Family Applications (1)

Application Number Title Priority Date Filing Date
US2249441A Expired - Lifetime US2249441A (en) 1939-10-20 1939-10-20 Spring motor

Country Status (1)

Country Link
US (1) US2249441A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759374A (en) * 1954-02-01 1956-08-21 Westinghouse Air Brake Co Crawler transmission
US3252354A (en) * 1962-10-22 1966-05-24 Henry E Roedter Multiple speed power transmission
US3290962A (en) * 1962-10-17 1966-12-13 Giddings & Lewis Planetary transmission
US3422704A (en) * 1967-01-31 1969-01-21 Roto Swing Door Co Inc Automatic door operator
US7310844B1 (en) * 2005-07-13 2007-12-25 Rehco Llc Toothbrush with manual powered movable brush head
USD791581S1 (en) 2015-12-04 2017-07-11 Whole Space Industries Ltd Spring motor housing for a window covering

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759374A (en) * 1954-02-01 1956-08-21 Westinghouse Air Brake Co Crawler transmission
US3290962A (en) * 1962-10-17 1966-12-13 Giddings & Lewis Planetary transmission
US3252354A (en) * 1962-10-22 1966-05-24 Henry E Roedter Multiple speed power transmission
US3422704A (en) * 1967-01-31 1969-01-21 Roto Swing Door Co Inc Automatic door operator
US7310844B1 (en) * 2005-07-13 2007-12-25 Rehco Llc Toothbrush with manual powered movable brush head
USD791581S1 (en) 2015-12-04 2017-07-11 Whole Space Industries Ltd Spring motor housing for a window covering

Similar Documents

Publication Publication Date Title
US3573479A (en) Generator flashlight
US3685080A (en) Mechanically powered toothbrush
US4438343A (en) Wave power generator
US4845796A (en) Rotating flexible stem tooth brush
US3734207A (en) Battery powered orthopedic cutting tool
US2278365A (en) Electrically actuated apparatus
US3229133A (en) Direct current homopolar generators
US5035020A (en) Rotary toothbrush
US3202378A (en) Motor driven reel for kites
US3168834A (en) Motion converting mechanism
US3735964A (en) Powered mechanical shaker device
US3160902A (en) Mechanical toothbrush
US4397055A (en) Reversable shaft with rotary and selective oscillating motion
US5209692A (en) Combination, a novelty toy and a candy holding device
US1767060A (en) Electric motor-driven desk fan
US2822781A (en) Electric pencil sharpener
US3115652A (en) Rotary toothbrush
US3822432A (en) Dental hygiene appliance
US3018092A (en) Paint-can shaker
US4287428A (en) Automatic spring powered battery charging device
GB1180384A (en) Improvements in and relating to Toys Activated by Oscillating or Rotating Weights
US2319205A (en) Electrically operated toothbrush
GB899618A (en) Vibratory tooth brushes
US4062608A (en) Telephone handset cord storage apparatus
US4031420A (en) Flywheel drive system