US2833898A - Vibrator mount - Google Patents

Description

May 6, 1958 A. A. DE LlssE VIBRATOR MOUNT Filed Nov. 2, 1954 I N V EN TOR. 4A/mow f4. fZ/ssf Arme/VW 'VIBRATOR MOUNT Dubilier Electric Corporation, South Planiield, -N. J., a corporation of Delaware ,iApplicatiomNovemhenLf 1954,.Serial.No.`z 466,273

3 Claims. Ik(CLl 200-5-168) @This:invention'relates to vibratorassemblies and particularly to a mounting for such .type assemblies .wherein .ani undesired transmission `of mechanical and. acoustical .vibrations .is` greatlyl reduced.

fElectrical vibrator .i assemblies arewell-knownv in the art vand are commonly yused in powery :supplies .for .battery operated radios andother electrical. apparatus. utilizing i a low. voltage .direct currentsourcefastheprimary source .of operatingpower. Units of this. general type employ. a

' vibrator. reed than .periodically interrupts. 'thefidirect curf-:rent-producedvby tlief low `voltage .source.in.,.a.-,manner Y:welll` known. ins the art. However, the necessary f .operaare oftentimes ytransmitted through .the :vibrator assembly mounti'fto the associated components lof the-apparatus in which the *vibrator assembly is incorporated. wThe. ,pres- "This invention'may be brieilydescribedasan improved mount for .electrical vibrator ,assemblies ,.wh'ereby v `unt desired transmission ofv mechanical andiacoustical vibra- 'ltons resultingtherefroin is.y greatly reduced.

The-object-of this -inventionis theiprovision of an irn- J`proved mount for electrical vibrator i assemblies.

Otherobjects and advantages ,ofy :the inventionwill be inadeapparent in thek followingrdescription and, claims e `and illustrated 1in l the accompanying drawings which disclose, by Way of example, the principles..underlying the invention and the presently preferred embodiments of the vibrator assemblyrmiount incorporating those prin ciples.

,Referring to the drawings: i

{'Fg. l, is a side elevational vieu/,f partially inl section, of a vibrator assembly and mountvtherefor embodying the lprinciples of this invention;

Fig. 2 is a plan view of the unit illustrated in Fig. l as viewed from the line 2-2 in Fig. l;

Fig. 3 is a section ltaken on the line 3 3 of Fig. 2 and showing only the vibrator assembly mount; and

Fig. 4 is a sectional view of an alternative construction for a vibrator assembly mount.

Referring to the drawings and particularly to Figs. l through 3, there is shown a vibrator assembly employing the novel mount that forms the subject matter of this invention. The vibrator unit proper forms no part of this invention and any suitable type of vibrator unit may be used. For the puiposes of illustration, however, the vibrator unit may include an elongated frame niember having one end 12 thereof deformed into a U-shape with the downwardly dependent arm portion 1 3 thereof serving as an armature for and supporting a coil 14. Disposed beneath the end of the dependent arm portion 13 is a vibrating reed 16 having a pair of contact members 18 and 20 mounted thereon and adapted to engage, upon displacement of the reed 16, fixed contact members 22 and 24, respectively. The frame 10, reed United States Patent tion of thefvibra'tingvmemberitherein results infundesirable vibratory effects, I.bothl lmechanical.` and; acoustical, which Hce f16,- andcontact members 18, 20, 22 and--24` are conventionally, mounted together with# suitable interposed; in-

sulating vmembers to for-m a base member generally designated as 26. The entirevibrator unit is adaptedf to beienclosed in the novel Amount generallyfdesignated'30.

The configuration of the novel mount-30 isbest -i1lus trated in Fig. 3. As there -shown,the mount 30 is adapted to be molded in one piece of suitableresilient.material,

vpreferably a rubberofv high purity, tolform anl integral unit of the shape shown. As-illustrated,-tlie-mount1-30 Iincludes a cylindrical vibrator unit-receiving sleeve-329i `substantially uniform diameter sized-to-'c1osely encompass the entire vibrator unitfand-to-position-the-san1e therewithin as bestshownin-Fig.v 1. Theupperfendofjthe vibrator unit `receiving sleeve-32 is Iprovided withan integral and horizontally disposed partialcap 34 sized to cover the horizontally disposedportion toffthe U-sliaped end of the frame member10 and thereby vouter skirt portion 42 extendsl beyond'the end of the-inner skirt portion 38 and terminates in aL horizontallydisposed iiange portion 44 molded aroundy andy enclosing a pressure ring 46.

In-assembly, the vibrator unit receiving sleevei32 is expanded and the vibrator unit proper is ins erted'ther ein so-that the upper surface-36 of 'theframe member" 10 abuts the horizontally disposed cap"34 andthe basesection -26 is contained Withinthe' lower portions of the dependent inner ski-rt. .fThe sleeve 32 `is thenpermitted to contract around and thereby firmly engage the vibrator unitfdisposed therein. Thefmount llfands the enclosed `vibrator unit are then insertedin a conve nt ionalfmetallic vibrator can 50 with the flanged portion 44 containing the pressure ring'46beingidisposed immediately beneath an `inwardly directed beadf52. A terminal'contairiing base-plate 54 having the terrninalsithereof connected by suitable leads tothe vibrator elements' isv then placed under pressuieagainst the underside of the anged, por tion 44 and is secured in position by rolling thedependent edge S6 of the can thereover asjillustrated in 'Fig.x1. WThe pressure ringj46 disposed withinthef'anged"portion44 serves to prevent the mount'tlfrom being-displaced 'up- Wardly past theV bead 52 by the action of the base plate 54 during assembly of the unit, and the disposition of the ring 46 intermediate the bead 52 and the base plate 54 after assembly serves to position the mount 30 containing the vibrator unit within the can 50.

In the assembled unit, as illustrated in Fig. l, the entire vibrator unit proper is supported by and within the vibrator unit containing sleeve 32 and is thereby suspended freely within the can 50. The only path of contact with the can 50, apart from the leads, occurs unit and position the same therewithin.

can 50 and thereby results in a vibrator assembly of improved quality.

Fig. 4 illustrates another configuration for a vibrator mount adapted to be molded in one piece from suitable resilient material, preferably a rubber of high purity.

vIn this embodiment the mount includes a cylindrical vibrator unit receiving sleeve 60 of substantially uniform diameter sized to closely encompass the entire vibrator The upper end of the vibrator unit receiving sleeve 60 is provided with an integral and horizontally disposed partial cap 62 sized to cover the horizontally disposed portion 36 of the U-shaped end of the frame member I0. The lower portion of the receiving sleeve 60 terminates in a dependent inner skirt portion 64 adapted to encompass the base section 26 of the vibrator unit proper. The mid portion 66 of the sleeve 60 is of increased thickness so as to provide a supporting structure integral with the sleeve 6i) for an elongated dependent outer skirt portion 68. The dependent outer skirt portion 63 extends beyond the end of the inner skirt portion 64 and terminates in a horizontally disposed flange portion 70 molded around and enclosing a pressure ring 72. The mid section 66 of increased thickness also serves to provide a support for a second integral and upwardly extending skirt portion 74 terminating in a anged portion 76.

In assembly, the vibrator unit receiving sleeve 60 is vexpanded and the vibrator unit proper is inserted therein so that the upper surface 36 of the frame member 10 abuts the horizontally disposed cap 62 and the base section 26 is contained within the lower portions of the dependent inner skirt 64. The sleeve 60 is then permitted to contract around and thereby firmly engage the vibrator unit disposed therein. The mount and the enclosed vibrator unit is then inserted in a conventional metallic vibrator can and is assembled in a manner similar to that described above in conjunction with the embodiment of Figs. 1 to 3.

In the assembled unit, the ilange 76 of the outer skirt portion 74 is adapted to peripherally engage the can adjacent the junction of the top and side walls thereof and to thereby provide an additional support for the assembled unit. In this mount the entire vibrator unit proper is supported by and within the vibrator unit containing sleeve 60 and is thereby suspended freely within the can 50 and is positioned against sidewise displacement thereof by the engagement of the flanges 70 and 76 of the outer skirt portions 68 and 74 respectively within the metallic can.

In accordance with the provisions of the patent statutes, I have herein described the principle of operation of this invention, together with the elements which I now consider to constitute a workable embodiment thereof, but I desire to have it understood that the structure disclosed is only illustrative and the invention can be carried out by other means. Also, while it is designed to use the various features and elements in the combinations and relations described, some of these may be altered and modiied without interfering with the more general results outlined.

Having thus described my invention I claim:

l. A one piece moldable mount for vibrator units formed of resilient material comprising a vibrator unit receiving sleeve sized to closely and compressively contain a vibrator unit therewithin, a dependent outer skirt portion integral with said sleeve adjacent the mid length thereof and extending beyond the end of said sleeve, and an outwardly extending flange portion on the dependent end of said outer skirt portion for positioning said vibrator containing mount in a completed vibrator assembly with a vibrator unit contained within said sleeve freely suspended therewithin. j

2. A one piece moldable mount for vibrator units formed of resilient material comprising a vibrator unit receiving sleeve sized to closely and compressively contain a vibrator unit therewithin and having a vibrator unit positioning cap at one end thereof and a dependent 4skirt portion at the other end thereof, a dependent outer skirt portion integral with said sleeve adjacent the mid length thereof and extending beyond the extremity of said dependent skirt portion of said sleeve, and an outwardly extending flange portion on the dependent end of said outer skirt portion for positioning said vibrator unit containing mount in a completed vibrator assembly with the vibrator unit freely supported therewithin.

3. A one piece moldable mount for vibrator units formed of resilient material comprising a vibratorv unit receiving sleeve sized to closely and compressively contain a vibrator unit therewithin and having a vibrator unit positioning cap at one end thereof and a dependent skirt portion at the other end thereof, a first dependent outer skirt portion integral with said sleeve adjacent the mid length thereof and extending beyond the extremity of said dependent skirt portion of said sleeve, a second outer skirt portion integral with said sleeve adjacent the mid length thereof and extending beyond said partial cap, and an outwardly extending flange portion on the dependent end of said first outer skirt portion for positioning said vibrator containing mount in a completed vibrator assembly.

References Cited in the file of this patent UNITED STATES PATENTS

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