Vibrator

Application filed April 9, 1928. Serial No. 268,609.

Fig. 1 is a side view partly in section illustrating my device ;

Fig. 2 is a view looking upwardly at Fig. 1 with the massage implement removed; and big. 3 is a section on thdline 3—3 of Fig. 1 Referring now in detail to the drawing my vibrator consists of the electro-magnet having, the core 5 made up of a series of laminations as illustrated ip Fig. 3 which core is provided with a plurality of polar projections 6,7, and 8 all of which have their end portions lying in substantially the same plane. The energizing coil 9 is wound about the central projection 7 and may be connected to a suitable source of current by means of the conductors 10 and 11 through a circuit closing and opening device indicated generally by the numeral 12 and operable bv means of the lever 13. .

Movable armature 14 extends across the ' end faces of the projections 6, 7, and 8 and is secured to the core 5 by means of the flat spnng 15 which is riveted to the armature or otherwise suitably secured as indicated at 16 and then is bent upwardly as at 17 to extend ' along the side of the projection 8 a substantial distance from the end face thereof and then is bent inwardly as at 18 so as to lie directly against the core.

Bolts 19 and 20 or other suitable securing 80 means serve to rigidly secure the end of the spring to the side of the core.

From the above description it wi’l be seen that the armature 14 is resiliently supported m a very simple manner by means of the 85 ----—_{Ιΐυιι;ι} spring 15 so as to permit vibration of the means tor resihently supporting the movable armature toward and away from the elee. tro-magnet. This mounting also permits the use of a heavy flat spring to support the armature and this spring having compara^a^ motion relative to the movement ot the tree end of the armature 14 will last tor a much longer time than would be the case if it were necessary to use light springs or springs having the same degree of movement as the armature.

, armature has at 21 a projecting shaft to which a massaging device indicated at 22 may be secured. As indicated in Fig. 1 this massaging device is screw threaded mto the

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1,832,437 shaft 21 so that one massaging device may be replaced readily with another of a different character when desired.

The entire electro-magnet is enclosed by ₆ means of a container consisting of the back piece 24 which as indicated in Figs. 1 and 3 is rigidly secured to the core of the magnet by means of screws indicated at 25 and 26 screw threaded into the core, and a pair of 2Q side pieces 27 and 28 which extend down over the sides of the projections 6, 7, and 8 and are outwardly bulged or bent to accommodate the core 9. These bulges are indicated more clearly at 29 and 30 in Fig. 2. At 25 the opposite ends of the side pieces 27 and 28 they are bent toward each other as indicated at 31 and 32 to enclose the ends of the electro-magnet. The side pieces are held in place by means of screws such as indicated at 33 20 and 34 and 35 so that they may be readily detached from the core and removed to permit access to the interior of the device. '

The bottom of the container formed by the back piece and side pieces just described is 25 left open to permit free action of the vibrating armature 14 which extends substantially the full length of this open side and serves to substantially complete the enclosure of the electro-magnet. It is obvious, however, that 30 the armature need not be as wide as shown merely to form the closure, but this makes a very simple and easily constructed manner of so enclosing the electro-magnet as to protect it from the accumulation of foreign mat35 ter therein. The back piece 24 is extended as indicated at 38 and has the sides thereof extended downwardly and bent toward each other as indicated at 36 and 37 in Fig. 2 to form an inclosure for the switch element here40 inbefore referred to. ,

The container formed by the aforementioned elements serves not only to enclose the electro-magnet but in view of its relatively small size and convenient shape, it is used 45 as the handle by which the device may be held and, by the use of the container as a handle it is unnecessary to provide the usual extended handles found on devices of this character. This body portion which may be 50 gripped by the hand of the operator makes a much better handle than the extended handle since it is practically impossible for the vibrator to twist or shake itself out of proper position in the hand.

⁵⁵ By having the weight distributed lengthwise of the casing and having the vibrator carried by the armature adjacent the front end of the casing so as to have the work pressure and maximum reaction at the one end of ⁶⁰ the casing in order to cause a turning movement in a plane lengthwise of the casing, the vibration at the other end is materially lessened. By having the tail piece in a generally diagonally opposite position with respect t© the place of pressure application, the turn ing movement can be opposed by the smaller fingers of the operator’s hand with but little of the tiring pounding or vibration upon them.

The heavy core of the armature together ₇₀with ’the winding and the housing makes a heavy mass that is not subject to an objectionable reaction due to the vibration of the light armature 14 and the massage tool carried thereby. Furthermore, in view of the ₇g manner in which the armature is mounted, heavier pressure on the massaging device brings the armature closer to the electro-magnet and thus increases’ the magnetic pull so that the degree of vibiation obtained is sub- go stantially increased at will without adjustment.