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Publication numberUS3875811 A
Publication typeGrant
Publication dateApr 8, 1975
Filing dateAug 21, 1973
Priority dateAug 21, 1973
Publication numberUS 3875811 A, US 3875811A, US-A-3875811, US3875811 A, US3875811A
InventorsFuller Oliver C
Original AssigneeEvans Products Company Transpo
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Multiple-way vibrator
US 3875811 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

I United States Patent 1 H 1 3,875,811

Fuller Apr. 8, 1975 1 MULTIPLE-WAY VlBRATOR 3.269.193 8/1966 Tsuchiya et al mm 3. 9 74 [75] Inventor: Oliver C. Fuller, Woodstock. Ill. 966 68 Bodme FOREIGN PATENTS ()R APPLICATIONS [73] Assigneez Evans Products Company,

Transporation sy [)ivisions hill) l r i i r r Des Plaines. Ill. Primur Examiner-Wesley S. Ratliff. Jr [22] Filed; Aug. 21, I973 A'Imrney, Agent, or Firm-Bede" and Burgess [21] Appl. No.1 390,190

[57] ABSTRACT 52 us. Cl. 74/61 A vibrator mechanism is prvvided which y be used 51 Int. Cl. Fl6h 33/00 for y P p Such 88 Screening aggregates driv- [58] Field of Search. 74/61 87 ing P Casings actuating trenching plows More particularly the mechanism contemplates changing the [56] References Ci directions of the vibratory oscillations from a straight UNITED STATES PATENTS line reciprocation to a figure eight" motion, and also changing the plane in which these motions occur. 2,516.335 7/[950 Ncvln, Sr. et al 74/61 3000.278 9/]961 Kaltcncgger 74/6] 3 Claims, 3 Drawing Figures MULTIPLE-WAY VIBRATOR SUMMARY OF THE INVENTION A typical construction of the mechanism involves paralled shafts geared to each other and mounting individual eccentric weights, the weight or weights on at least one shaft being shiftable axially relative to the weight or weights or the other shaft, and the shafts being adjustable angularly with respect to each other by disengaging and reingaging their gears.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a framing or base plate mounting the vibratory elements.

FIG. 2 is a fragmentary top view corresponding to a portion of FIG. 1 but with the parts shifted to provide a different vibratory movement.

FIG. 3 is a section on line 33 of FIG. 1.

DETAILED DESCRIPTION The base 1 mounts pairs of bearings 2, 2 and 4, 4 for parallel shafts 6. 7 respectively carrying interengaged equal gears 9, l keyed to the left-hand ends of the shafts. A pulley II on the other end of shaft 6 is driven by a motor (not shown). An eccentric weight comprising weight members 13 spaced apart longitudinally of shaft 6 is keyed to shaft 6, and an eccentric weitht 14 is keyed to shaft 7.

Rotation of pulley ll rotates the shafts and weights to set up reciprocal thrusts in base 1 which are transmitted as vibrations to the plow or other equipment upon which it is mounted. Gear 9 is pressed by spring 18 against a collar 17 on the left-hand end of shaft 6 where it meshes with gear and rotates the latter and the weights mounted thereon.

By compressing spring 18. gear 9 may be shifted to disengage gear [0 and may be rotated angularly any de sired amount to vary the angular relation of weight l3, l4 to each other and when the gear is released spring 18 thrusts gear 9 into mesh with gear 10 in the new angular relation.

Weight 14 is shiftable lengthwise of shaft 7 and may be positioned as desired so as to be in centered relation to weights 13 or to be positioned closer to one of bearings 4.

A shaft 19 is rotatably mounted in bearings 2 on the base plate and threaded through yoke 15, the termininals 16 of which embrace weight 14 and are apertured to slidably receive shaft 7, thus providing for ready adjustment of weights l4 longitudinally of shaft 7 and relative to weights 13. To facilitate rotation of shaft 19 it is provided at its ends with knurled knobs 20.

With the weights disposed as shown it is a simple matter to vary the vibratory thrust of the mechanism or to vary the vibration from a straight line reciprocation or to introduce stipulated increments of figure eight movements in the plane of the base plate.

I claim:

1. A vibrating mechanism comprising a base memher, two shafts side by side with individual spaced jourmals on said base member, interengaged gears on said shafts, eccentric weights carried on said shafts, the gear on one shaft being movable axially of that shaft to disengage the gears to provide for relative rotation of the shafts whereby the weight on one shaft is shiftable angularly about the axis thereofirrespective of the weight on the other shaft. and yielding means for reengaging the shafts after their simultaneous rotation.

2. A vibrating mechanism as described in claim I in which the weight on one shaft comprises separate weight members spaced apart lengthwise of the shaft and the weight on the other shaft is positioned between said separate weight members and is shiftable in opposite directions longitudinally of the shaft relative to the spaced weight members on the first shaft.

3. A vibrating mechanism as described in claim 2 including a threaded shaft rotatably journaled on said base member parallel to said other shaft. a yoke threadably mounted on said threaded shaft and having term inals embracing said weight on said other shaft for shifting said weight longitudinally of said other shaft responsive to rotation of said threaded shaft.

* l l l=

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2516335 *Mar 25, 1947Jul 25, 1950Glenn L Martin CoVariable force vibrator
US3000278 *Nov 21, 1958Sep 19, 1961Bomag Bopparder Maschb Ges M BMovable device for rolling road surfaces and the like
US3269198 *May 5, 1965Aug 30, 1966Gen Mills IncVariable thrust oscillator
US3417966 *Jan 3, 1967Dec 24, 1968Albert G. BodineAdjustment of orbiting mass oscillator driving resonant sonic vibration system for optimum system stability
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4087982 *Sep 23, 1976May 9, 1978J. I. Case CompanyVibratory plow
US4165655 *Aug 18, 1977Aug 28, 1979El-Jay, Inc.Vibrating screen apparatus having dual function eccentric weights
US5123292 *Dec 31, 1990Jun 23, 1992Woltering Howard MMotivational generator
US7117758Sep 27, 2002Oct 10, 2006Wacker Construction Equipment A.G..Vibration generator for a soil compacting device
US7171866Aug 3, 2001Feb 6, 2007Wacker Construction Equipment AgControllable vibration generator
WO2002011906A1 *Aug 3, 2001Feb 14, 2002Wolfgang FerversControllable vibration generator
WO2003028905A1 *Sep 27, 2002Apr 10, 2003Riedl FranzVibration generator for a soil compacting device
Classifications
U.S. Classification74/61
International ClassificationB06B1/16, B06B1/10
Cooperative ClassificationB06B1/166
European ClassificationB06B1/16B4
Legal Events
DateCodeEventDescription
Jul 5, 1988ASAssignment
Owner name: COLE TAYLOR BANK/MAIN
Free format text: SECURITY INTEREST;ASSIGNOR:RAIL HOLDINGS, INC., A DE CORP.;REEL/FRAME:004905/0804
Effective date: 19880427
Jun 10, 1988ASAssignment
Owner name: RAIL HOLDINGS, INC., CORPORATION TRUST CENTER, 120
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EVANS ENGINEERED PRODUCTS COMPANY;REEL/FRAME:004886/0619
Effective date: 19880511
May 13, 1988ASAssignment
Owner name: RAIL HOLDINGS, INC., CORPORATION TRUST CENTER, 120
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EVANS ENGINEERED PRODUCTS COMPANY;REEL/FRAME:004889/0519
Effective date: 19880511
Owner name: RAIL HOLDINGS, INC., A CORP. OF DE, DELAWARE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EVANS ENGINEERED PRODUCTS COMPANY;REEL/FRAME:004889/0519
Feb 29, 1988ASAssignment
Owner name: EVANS ENGINEERED PRODUCTS COMPANY, CORPORATION TRU
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GROSSMAN S INC.;REEL/FRAME:004836/0849
Effective date: 19880224
Owner name: EVANS ENGINEERED PRODUCTS COMPANY, A CORP. OF DE,
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GROSSMAN S INC.;REEL/FRAME:004836/0849