US1812960A - Electric massage machine vibrator - Google Patents

Description

July 7, 1931. c, w. T 1,812,960

ELECTRIC MASSAGE MACHINE VIBRATOR Filed Jan. 21, 1929 Patented July 7, 1931 PiA- T E NT OFFICE GHARLES w. KENT, or PEORIA, ILLINOIS ELECTRIC zivmssaen MACHINE VI BRATOR .Appl ication filed January 21, 1929. Serial 110.333,?67.

invention relates more particularly to the vibrators used in the.comparatively'small electric massage machines which are primarily adapted to be held inthe hand of the Buser, and are usually operated by one or more of thesma'll' types ofdry batteries which are slipped into thehandleportion of the machine" and furnish the operating current, though my invention is not necessarily lim- 10 ited to this typeof machine or to this use.

One object of my invention is the provision ofian adjustable'vibrator provided with a relatively heavy shield or guard whereby the delicate parts of the vibrator are protected 1 from 'i'njury. I

Another object of my invention is to con struct and-arrange the guard so'that it forms a part of the electrical circuit from the battery to the. primary coil, thuscombining the 'functions of protectionto the parts and establishingcontact with the battery.

Other objects of my inventionwill appear 7 and be. described in the specification.

. The novelty of my invention will be herein aftermore fully set forth and specifically pointed out in the claim.

In the accompanying drawings, in which the parts are shown approximately twice full s1ze: 301 "Fi'g.:1'is--a .central 'sectional side elevation ofthe major portion of an electric massage machine showing my vibrator and associated parts in their proper arrangement and position. 35 1 Fig.2 is an end view of the vibrator parts with the "guard removed;

Fig. 3 is a view corresponding to Fig. 2 but with the guard in position.

Fig. 4 is a side view of Fig. 3.

. i The same numerals of reference are used to indicate identical parts in all the figures.

As showing one form of device embodying my invention, though without limiting my- .self to the precise details of construction and arrangement of parts, but availing myself of all changes and modifications which may be made within the scope of the appended claim, I have shown a device comprising a handle portion 5 which is usually a metallic 5Q*tube which forms one of the terminals of both the primary and secondary currents, this tube being usually provided at its upper end with a plug or cap 6, either of insulating material or insulated from the handle portion 5 and usually carrying a roller or other suitable, terminal for the secondary current, the connection to which will be described later.

The plug 6 usually carries a rod or tube of insulating material 7, to the lower end of which the primary coil 8is attached, the lower end of this coil carrying a disc 9. preferably of bakelite or other suitable insulatingmaterial, the disc 9 carrying the parts of the vibrator and its guard.

' On the under side of the disc 9 the vibrator proper 10 is mounted as by screws 11, the vibrator being provided with an armature 12 and a contact 13. One terminal of the primary coil as shown at 14, passes through the disc 9 and is connected to the vibrator 10.

A second member 15 is secured to the disc 9 and is formed as shown in Fig. 2 and is bent over to bring its contact 16 into alignment with the contact 13, this member 15 being adapted to be adjusted by means of the screw 17, the screws 18 serving to hold it in position upon the disc. This member 15 has an extended portion 19 (Fig. 2) upon which one side of the guard rests when the guard is in position. i

The guard20 is shaped'as shown in Figs. 3 and 4 so that its two ends rest upon the disc upon one side and the extension 19 upon the other, the guard being secured to the disc by I screws 21, while its center portion is formed as a housing to protect the parts of the vibrator-and as shown in Fig. 2, the central terminal 22 of the battery 23 rests against this guard and forms the electrical connection betweenthe battery and the rest of the device.

In that form of device shown in Fig. 1, the

secondary coil 24 is mounted within the handle to slide therein and is moved by a button 25 projecting through a slot in the handle.

A spring contact 26 is carried by the secondary coil and has one of its ends bent to form a contact withthe handle 5, while its other end 27 forms a contact with a conductor 28 which extends from the disc 9 acrossthe coil 8 and part way up the tube 7, then passes whereuponthe armature andvibrator move v through an opening in this tube to the inside thereof and is held in place by a plug 29. One terminal of the secondary coil is connected to the contact spring 26 and the second terminal 30 Or n; primary coil 8 is connected to the conductor 28. r

A second conductor 31 extends from the disc 9 to a point about opposite the point to which the conductor 28 passes within the tube 7, where it also passes within this tube and is likewise held by the plug 29, this conductor extending up through'the plug or cap 6 and is connected to the roller or other secondary terminal of the device. A spring contact32 is carried bythe secondary coil 24 and is connected to the other terminal of this coil and establishes a contact with the conductor 31. v r V I have described these parts of the device so that the electrical connections will appear complete which they do with the exception of the lower portion of the handle, which, as

is usual in thesedevices carries a removable battery may consist of one or more cells, the.

other terminal of the battery 22 being in contact with the guard which in turn is in contact with the member 15, the latter carrying the contact point 16 normally resting in;

contact with 'thecontact 13 carried by the vibrator 10. The lead lt extends from the vibrator 10' to one terminal of the primary coil, the other terminal being connected to the conductor 28, upon which the spring contact 27 rides when the secondary coil is in the position shown in Fig. 1, this contact 27 being part of the spring 26 which is in contact with the handle 5 completes the primary electrical circuit. In the construction shown the secondary coil is moved upward, the contact 27 moves past the exposed portion ofthe conductorv 28 and opens the circuitf 7 During the flow of current, when the secondary coil is, in a position where its contact 27 is upon the conductor 28, the'coil 8 is energized and 'itspole pulls the armature 12 and the vibrator 1O upward thus open ing the circuit between the contacts 13 and 16 which results in demagnetizing the pol-e back into contact in theordinary way.

Owing to the comparative-smallness and delicacy of the parts and to the further fact that these parts have only a very small range of movement it is advisable that means'for nroperlysetting the posi-tionof the contacts screw 17 is employed, this screw acting to not only adjust the position of the member 15 and its contact 16 but to provide a movement limit for the downward movement of the member 15, or in other words to dampen its movement in one direction while at the same time permittingthis member to vibrate at its outer end though'tnot as freely as it would without the screw 17 This portion of the device constitutes an adjustable vibrator and, by meansof this adjustment the distance between the arma- -ture 12 and thepole of the coil 8 may be varied while at the same time the other construction is'such, that while in operation, the parts are acting yieldingly, thereby producing a vibrator which stands up well in service and one which consists of very few simple parts which, when mounted as shown and protected by the member 2 0 are not subject to derangement in use even though the device may accidentally fall and strike in such way that the Weight of the battery would come upon the guard 20. v i g i It is to be noted that the operating parts of the vibrator are "mounted'on the disc 9 so that even if the guard 20 should be sprung or bent accidentally, no disturbance of the setting of the parts would occur, unless of course the guard were to collapse to an extent which should bring it in contact with the parts of the vibrator, which condition, owing to the substantial character otthe guard20 is extremely remote. 7

Having thus fully described my invention, I claim: f

In a massage machine vibrator the combination of a handle portion, a primary coil.

I carried by the disc and cooperating with the springmounting for'the vibrator, means for adjusting thecontact member, a guard car ried by the disc andsubstantially'inclosing the vibrator parts and in electrical connection with one thereof, and a battery within the handle and in electrical contact with the guard. V

7 CHARLES W. KENT.

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