US1925350A - Electric vibrator - Google Patents

Description

Sept. 5, 1933. w. H. TUCKER ELECTRIC VIBRATOR Filed July 18, 1931 lVatentedS-epzt. 5, 1931iv l v' i I ELECTRIC vIBRA'roR Application July 18,- 1931. Serial No. 551,676 s'olaims. (cl.,175-338)' The present invention relates to a new and imand .between which cleaning ,air passes on its way proved means for actuating a surface-agitatng to the, fan chamber 2 in the. operation` of the element in a suction cleaner. More specifically cleaner. The supporting wheels for the front the'l invention comprises the provision of a new end of the cleaner are shown' and are indicated by 5 and improved electric vibrator.

Itis an object of the present- 'nvention to promouth and the -fan chamber 2, in that recess vide a new and improved agitator-actuating formed where the nozzle extends upwardly to the meansl for a suction cleaner. A further object is eye of the fan chamber, is positioned thel electhe provision of a newand improved 'electric vitric vibrator Whichcomprises the present invenbrator adapted to actuate a surface-coveringtion. 65. beating means in a suction cleaner. .A still fur- A bottom plate '17' is provided which extends ther object is the provision of an electric vibrafrom the rear lip 14to'the nozzle to the front of tor' for a suction cleaner in which no electrical the fan chamber and provides a suitable base supswitch is present, and inwhich there is no audible port therefor.' Upon this bottom plate 17 is 15 chatter resulting from the contact of metal upon positioned a U-shaped member 22 'which rigidly 70 metal. These and other more speci'c objects supports the wound coil 25 and thelaminated core will appear upon reading the following s pecifica- 26 of the vibrator. The core 26 is provided with tion and claims, and'up on considering in connecarms whchfextend forwardly and partially en tion therewith with the-attached drawing to which lcircle the forward or n'ozzle side of the coil 25,l

.20 they relate. l forming poles. In the drawing in which a preferred embodi- Upon each of the vertical sides of the U-shaped ment of the presen-t invention is disclosed: member 22, andat the sides 'of the vibrator coil,I

Figure 1 is a partial cross section upon a horiare pivoted arms 20, 20, each upon a pivot pin 21. zontal p1ane"thr0ueh a Suction cleaner Showing These arms or unks 2o, 20 are connected forward 25 the present invention embodied therein, and .conof the poles.2,5 by a transversely-extended fmem- 80 nected to surface-agitating means in the cleaner ber 2'7, upon which is mounted a laminated armanozzle; .ture28.`

Figure 2 is a-section at right angles to Figure l In the vibrator constructed in accordance" with and shows a Vertical ONSS-Section through a the vpresent invention each end of the core 26 of v 30 cleaner with an electric vibrator, constructed in the'coil 25 is divided and formstwo pole divisions 85 l accordance with the' present invention, operaof the same polarity and which bear the reference tively connected to `a second'type of surfacecharacters 31 and 3 2 respectively. See Figure 2 aeitatns means in the cleaner nozzle; of thedrawing in particular. The armature 28 is' Figure 3 is a view'in perspective of a member so mounted relative to the poles 3 1 and 32 that it s the reference character '7, 7,. Betweengthe nozzle 30 by which the electricl coil' andfstationary poles is adapted to moveinclose proximity thereto upon, 90

of the vibrator are supported in the cleaner conthe pivotal movement of the arms 2U, 20 labout struction; their pivot points 21, 21. The sides of the poles Figure 4 is a view of a spring support. 31 and 32 which-lie adjacent the path of the arma- An electrical vibrator constructed vin accord-v ture 28 are curved, as is clearly shown. in Figure 40 ance with the present invention ndsusefulness 2, so as to lie closely adjacent the path of arma- 95 in connection with surface-agitating means in a ture, but without interference therewith., suction cleaner and accordingly in the drawing Rearwardlyof the pivot' points 21, 2l and of has been shown in connection therewith. The the coil 25 the arms 20, 20 are secured to springs entire suctionl cleaner has not been shown., but a' 23, 23, which are alsosupported from the bottom sufficient part thereof is illustrated toadequately plate 1'? by means of small U-shaped supports lOl) f indicate the position of the vibrator 'relative to 24, 24. These springs are so designed that in the the remainder of the machine and to the surfaceinoperative relationship ofthe vibrator the arma; agitating elements in connection with, which it ture 28 is supported and held substantially' mid- .nds its usefulness; In'the drawing a cleaner way betweenthe poles 31- and 32 and movement nozzle is found indicated bythe reference charactoward either pole division 31er 32 that is, either l05 ter 1, and the cleaner fan chamber, to which the upwardly or downwardly, results in theplacing of nozzle is interiorly connected, by the character 2, the springs under 4either tension or compression; therebeing a rotatable fan 4 positioned within The arms 20, 2O are also extended forward of the fan chamber. Surface-contacting nozzle lips the armature 28 andy through openings 19, 19 into 13 and-14 'define the nozzle mouth under which the nozzle where they carry suitable surface-agi- 11i) tating elements. In Figure 1 of the drawing a plurality of vibrators are shown each being connected to a rigid beating member 15. In Figure 2, however, the arms 20, 20 of theI vibrator carry not only a rigid beating member 15, but also a brush 15a. The openings 19, 19 to which the arms20, 20 extend into the nozzle are of sufcient dimensions to` permit the movement of the arms 20, 20 under the action of the vibrator.

In the operation of the.described construction the surface covering undergoing cleaning would be lifted against the vnozzle lips 13 and 14 by the action of the suction-creating fan 4 which creates a reduced pressure within the nozzle. The

beater element 15, and in the case of Figure 2, 15'

and 15a, would be slightly raised by the lifted surface covering thereby moving the armature 28 in the direction of the pole division 31 of the core 26. With the coil 25 energized, as it would be in the operative relationship, and with armature 28 slightly displaced toward pole 31, upon the current passing through its maximum value, an alternating current being assumed, armature 28 would be drawn to a position adjacent pole 31, placing springs 23, 23 under tension. Upon the reversal of current and the consequent reduction in ux, the spring 23 at each link 20 would force armature 28 downwardly, thru pivoting the links and the momentum acquired by the armature would carry it in the direction of poles 32 past the mid-point and, as the current again increased to maximum value, armature 28 would be'drawn ,in the direction of pole 32 placing each spring 23 under compression. In the next half cycle of current the operation would be reversed, the armature again being moved to the poles 31 at the opposite ends of the core 26. results in the alternate lifting and forcing downwardly of the beating elementscomprising the rigid beater 15, or beater and brush 15 and 15a, as the case may be. As is evident from the above description both the beating .blow of the agitating elements and the lifting force is effected by the magnetic vibrator. By correctly designing the weight of the moving parts and the strength of the springs 23, 23 it is clear that an extremely efficient' vibrating unit can be produced.

I claim:

1. An electric vibrator comprising spaced staf tionary poles of opposite polarities, an alternating current winding adapted to reverse the polarities of said poles, each of lsaid poles being divided, a movable armature extending between saidn poles and mounted for movement toward and from each division of each pole, and resilient means opposing the movement of said armature on either side of a mid-position between the divisions of each pole and adapted to reverse the direction of travel 'of said armature upon the reversal of polarity of said poles caused by said winding.

2. An electric vibrator comprising al winding, a. stationary core for said winding the ends of'which.

neously reverse their polarities, each 'of said poles This, of course,

form poles of opposite polarity and which are divided, each division. being positioned in the same plane as a division of the opposite pole, a pivoted. armature extended between said poles and adapted to move in a path closelyadjacent said divisions, said armature adapted to be drawn toward a pair of pole divisions of opposite polarity upon the passing of alternating current thru said winding, and means to force said armature from said pair of pole divisions toward the remaining pair of divisions upon the reversal of current in said wind ing and the accompanying decrease in magnetic flux of said poles so that upon the following increase in `iiux strength said armature will be drawn toward said remaining pair of pole divisions.

3. An electric vibrator comprising spaced stationary poles of. opposite polarities, means adapted to vary the strength of said poles and simultabeing divided, an armature extended between pole-divisions of opposite polarities and mounted for movement toward and from divisions of the samepolarity, characterized by the fact that said armature is drawn to a position between a pair of pole-divisions of opposite polarities as the pole strengths are increased to a maximum and is released from that position as the pole strength is decreased to a minimum.

4. An electric vibrator comprising spaced stationary poles of opposite polaritiesla currentcarrying winding adapted to vary the strength of said poles in cycles between a maximum and a minimum value, each of said poles being divided into spaced divisions, an armature extended between pole-divisions of opposite polarities and mounted for movement in a path including positions closely adjacent, but out of contact with,v said pole-divisions, characterized by the fact that said armature is drawn to a position between a pair of pole-divisions of oppositei polarities as the pole strengths are increased toa maximum and is released from that position as the pole strength is decreased to a minimum.-

5. An electric vibrator comprising spaced stationary poles of opposite polarities, an 'alternating-currentcarrying winding adapted to vary the strength of said poles in cycles between a maximum and a minimum value, said poles being divided into spaced divisions, an armature extended between pole-divisions of opposite polarities and mounted for movement in a path including positions closely adjacent, but out of contact with, said pole-divisions, characterized by the fact that said armature is drawn to a posi 10 tion between a pair of pole-divisions of -,opposite polarities as the pole strengths are increased to a maximum and means are provided to reverse the direction of armature travel as said pole strength is decreased to a minimum.

WILMER H. TUCKER.

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