US3339422A - Electric motor driven vibrator and adjusting device therefor - Google Patents
Electric motor driven vibrator and adjusting device therefor Download PDFInfo
- Publication number
- US3339422A US3339422A US440798A US44079865A US3339422A US 3339422 A US3339422 A US 3339422A US 440798 A US440798 A US 440798A US 44079865 A US44079865 A US 44079865A US 3339422 A US3339422 A US 3339422A
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- United States
- Prior art keywords
- weights
- shaft
- rotor
- fixed
- electric motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
- B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
- B06B1/162—Making use of masses with adjustable amount of eccentricity
- B06B1/163—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being only adjustable when the system is stationary
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18544—Rotary to gyratory
- Y10T74/18552—Unbalanced weight
Definitions
- This invention relates to an electric motor driven vibrator of the type constituting a rotor having a shaft extended thereto and a pair of fixed eccentric weights mounted on the shaft on opposite sides of the rotor, and contemplates the use of an additional pair of adjustable weights on the shaft, together with means for varying the position of adjustment of the movable weights relative to the fixed weights, so that the degree of eccentricity of the combined weights may be varied resulting in an increase or decrease in the vibratory effect of the device.
- a further object of the invention is the provision of an arrangement of this nature whereby the relative position of the movable weights may be adjusted by turning a dial at either end of the shaft, and contemplates means for fixing the adjusted dial in a selected position of adjustment, so that a predetermined degree of eccentricity of the weight at one end may be duplicated in the weight at the other end.
- a still further object of the invention is the provision of a device of this sort including novel means for connecting the components thereof.
- a further object of the invention is the provision of a device of this nature wherein the weights may be readily adjusted without disassembly of the apparatus and from the exterior of the device.
- a further object of the invention is the provision of a device of this character which is sturdy and durable in construction, reliable and eflicient in operation, and relatively simple and inexpensive to manufacture, assemble and utilize.
- FIGURE 1 is a side elevational view of one form of apparatus constructed in accordance with the instant invention.
- FIGURE 2 is an enlarged end elevational view thereof, taken substantially along the line 22 of FIGURE 1, certain concealed portions thereof being indicated in dotted lines.
- FIGURE 3 is an enlarged view of the interior assembly, showing the rotor, the drive shaft, and the fixed and movable weights associated therewith.
- FIGURE 4 is a sectional view taken substantially along the line 4-4 of FIGURE 3 as viewed in the direction indicated by the arrows, and
- FIGURE 5 is a fragmentary sectional view showing a detail of construction.
- a vibrator housing which is generally cylindrical in configuration and includes a base 11.
- the housing contains an electric motor including a rotor 12 and a shaft 13, the ends of the latter extending through suitable bushings 14 carried by end plates 15 on opposite sides of the casing.
- the plates are held in position by bolts 16, and electricity is supplied to the motor through a conduit 17 and an inlet box 18.
- a pair of fixed weights 19 are eccentrically mounted on opposite sides of rotor 12 on the shaft 13, the fixed weights being permanently aligned, and the alignment being assured by means of a locking pin 20 extending through the rotor and into the fixed weights 19 on opposite sides of the device.
- Each portion 23 has a bore 24 therein which is seated an adjusting pin 25, the latter in turn having an external transverse bore 26 through which extends one end 27 of an L-shaped connecting rod, the other leg 29 of which seats in a groove 30 cut in the side of the end portion of shaft 13.
- leg 29 is flattened as at 31 and extends through a corresponding rectangular opening 32 in an adjustment dial 33.
- Each dial 33 has a bore 34 therein, one end of which is reduced as at 35, and the other end of which is closed by a threaded plug 36.
- An adjustment locking pin 37 extends through the reduced portion 35, and is spring biased towards extended position by means of a compression spring 38 extended between a plate 39 carried by the pin 37 and a plate 40 at the inner edge of the bushing.
- the opposite end of the pin 37 extends through an opening 41 in bushing 36 and terminates in an operating head 42.
- Each end of shaft 13 is provided with a semicircular series of pin-receiving openings 45 which are concentric with the flattened end 31 of leg 29 of the L-shaped rod.
- the pin 37 is then allowed to seat in a selected opening 45, and the weight is thus permanently maintained in a selected position of eccentricity on the shaft 13.
- the vibrator in operation will afford greater or less vibratory effect in accordance with the relative angularity of the mounting of weights 21 to the eccentricity of weights 19.
- An electric vibrator including a housing, a rotor in said housing, a rotor shaft extending concentrically axially through said rotor, a fixed weight concentrically mounted on said shaft at each end of said rotor, said fixed weights being aligned, rotatably movable eccentric weights mounted on said shaft adjacent said fixed weights, means for varying the eccentricity of said movable weights relative to said fixed weights, and means for securing said movable weights in a selected position of adjustment, said last mentioned means being accessible from the exterior of said casing.
- the other end of said L-shaped member is secured to said rotatably movable weight, and means, comprising the means for varying the eccentricity of said movable weight are provided for rotating said one leg in said groove.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
Sept. 5, 1967 f F. PETRIN 3,339,422
ELECTRIC MOTOR DRIVEN VIBRATOR AND ADJUSTING DEVICE THEREFOR Filed March 18, 1.965
, Z n 76 f INVENTOR FQA/VK Pf new BY W 42 United States Patent O 3,339,422 ELECTRIC MOTOR DRIVEN VIBRATOR AND ADJUSTING DEVICE THEREFOR Frank Petrin, 41-10 Judge St., Elmhurst, N.Y. 11373 Filed Mar. 18, 1965, Ser. No. 440,798 4 Claims. (CI. 7487) ABSTRACT OF THE DISCLOSURE An electric motor driven vibrator of the type having a shaft with fixed and movable eccentric weights mounted thereon, and means for varying the position of the movable weights in relation to the fixed weights.
This invention relates to an electric motor driven vibrator of the type constituting a rotor having a shaft extended thereto and a pair of fixed eccentric weights mounted on the shaft on opposite sides of the rotor, and contemplates the use of an additional pair of adjustable weights on the shaft, together with means for varying the position of adjustment of the movable weights relative to the fixed weights, so that the degree of eccentricity of the combined weights may be varied resulting in an increase or decrease in the vibratory effect of the device.
A further object of the invention is the provision of an arrangement of this nature whereby the relative position of the movable weights may be adjusted by turning a dial at either end of the shaft, and contemplates means for fixing the adjusted dial in a selected position of adjustment, so that a predetermined degree of eccentricity of the weight at one end may be duplicated in the weight at the other end.
A still further object of the invention is the provision of a device of this sort including novel means for connecting the components thereof.
A further object of the invention is the provision of a device of this nature wherein the weights may be readily adjusted without disassembly of the apparatus and from the exterior of the device.
A further object of the invention is the provision of a device of this character which is sturdy and durable in construction, reliable and eflicient in operation, and relatively simple and inexpensive to manufacture, assemble and utilize.
Still other objects will in part be obvious and in part be pointed out as the description of the invention proceeds, and shown in the accompanying drawing wherein there is disclosed a preferred embodiment of this inventive concept.
In the drawing:
FIGURE 1 is a side elevational view of one form of apparatus constructed in accordance with the instant invention.
FIGURE 2 is an enlarged end elevational view thereof, taken substantially along the line 22 of FIGURE 1, certain concealed portions thereof being indicated in dotted lines.
FIGURE 3 is an enlarged view of the interior assembly, showing the rotor, the drive shaft, and the fixed and movable weights associated therewith.
FIGURE 4 is a sectional view taken substantially along the line 4-4 of FIGURE 3 as viewed in the direction indicated by the arrows, and
FIGURE 5 is a fragmentary sectional view showing a detail of construction.
Similar reference characters refer to similar parts throughout the several views of the drawing.
Having reference now to the drawing in detail, there is generally indicated at 10 a vibrator housing, which is generally cylindrical in configuration and includes a base 11. The housing contains an electric motor including a rotor 12 and a shaft 13, the ends of the latter extending through suitable bushings 14 carried by end plates 15 on opposite sides of the casing. The plates are held in position by bolts 16, and electricity is supplied to the motor through a conduit 17 and an inlet box 18. In accordance with the instant invention, a pair of fixed weights 19 are eccentrically mounted on opposite sides of rotor 12 on the shaft 13, the fixed weights being permanently aligned, and the alignment being assured by means of a locking pin 20 extending through the rotor and into the fixed weights 19 on opposite sides of the device. Mounted on the shaft 13 at opposite ends thereof and exteriorly of the fixed weights 19 are a pair of movable weights 21, each of which includes, as best shown in FIGURE 4, a cylindrical collar 22 which encircles the shaft 13, and a wedge-shaped eccentrically mounted weight portion 23.
Each portion 23 has a bore 24 therein which is seated an adjusting pin 25, the latter in turn having an external transverse bore 26 through which extends one end 27 of an L-shaped connecting rod, the other leg 29 of which seats in a groove 30 cut in the side of the end portion of shaft 13.
The outer end of leg 29 is flattened as at 31 and extends through a corresponding rectangular opening 32 in an adjustment dial 33. Each dial 33 has a bore 34 therein, one end of which is reduced as at 35, and the other end of which is closed by a threaded plug 36. An adjustment locking pin 37 extends through the reduced portion 35, and is spring biased towards extended position by means of a compression spring 38 extended between a plate 39 carried by the pin 37 and a plate 40 at the inner edge of the bushing. The opposite end of the pin 37 extends through an opening 41 in bushing 36 and terminates in an operating head 42.
Each end of shaft 13 is provided with a semicircular series of pin-receiving openings 45 which are concentric with the flattened end 31 of leg 29 of the L-shaped rod.
The arrangement is thus obviously such that as the dial 33 is rotated, assuming that the pin 37 is raised by means of knob 42 so as not to engage in any opening 45, the weight 23 is swung to a different position of adjustment relative to the shaft by the engagement of leg 29 with pin 25. By engaging pin 37 with a selected opening 45, the degree of eccentricity of each of weights 21 may be fixed with respect to weights 19. It is essential to the proper operation of the device that the adjustment of each of the weights 21 be the same at the opposite ends of the device.
From the foregoing the use and operation of the device should now be readily understandable. It will be seen that in order to adjust the relative position of weights 21 with respect to fixed weights 19, it is merely necessary to remove the cap or bushing 14 from its associated end plate 15 at each end of the device, and by releasing the pin 37 through head 42, adjust dial 33 until the desired degree of eccentricity of each weight 23 has been obtained.
The pin 37 is then allowed to seat in a selected opening 45, and the weight is thus permanently maintained in a selected position of eccentricity on the shaft 13. The vibrator in operation will afford greater or less vibratory effect in accordance with the relative angularity of the mounting of weights 21 to the eccentricity of weights 19.
It will now be seen that there is herein provided an improved vibratory device having adjustable weights, which accomplishes all of the objects of this invention,
and others, including many advantages of great practical utility and commercial importance.
As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrated, and not in a limiting sense.
What is claimed is:
1. An electric vibrator including a housing, a rotor in said housing, a rotor shaft extending concentrically axially through said rotor, a fixed weight concentrically mounted on said shaft at each end of said rotor, said fixed weights being aligned, rotatably movable eccentric weights mounted on said shaft adjacent said fixed weights, means for varying the eccentricity of said movable weights relative to said fixed weights, and means for securing said movable weights in a selected position of adjustment, said last mentioned means being accessible from the exterior of said casing.
2. The structure of claim 1 wherein a groove is provided in the surface of said shaft at each end, one leg of an L-shaped member is rotatably seated in said groove,
the other end of said L-shaped member is secured to said rotatably movable weight, and means, comprising the means for varying the eccentricity of said movable weight are provided for rotating said one leg in said groove.
3. The structure of claim 2 wherin said last mentioned means comprises a dial secured to the end of said one leg adjacent that end of said shaft.
4. The structure of claim 3 wherein the ends of said shaft are provided with openings and the dial carries a spring pin engageable with a selected opening, comprising the means for securing the movable weights in a selected position of adjustment.
References Cited FOREIGN PATENTS 528,087 4/ 1954 Belgium. 1,202,229 7/ 1959 France. 1,103,658 3/ 1961 Germany.
20 FRED c. MATTERN, JR., Primary Examiner.
W. S. RATLIFF, Assistant Examiner.
Claims (1)
1. AN ELECTRIC VIBRATOR INCLUDING A HOUSING, A ROTOR IN SAID HOUSING, A ROTOR SHAFT EXTENDING CONCENTRICALLY AXIALLY THROUGH SAID ROTOR, A FIXED WEIGHT CONCENTRICALLY MOUNTED ON SAID SHAFT AT EACH END OF SAID ROTOR, SAID FIXED WEIGHTS BEING ALIGNED, ROTATABLY MOVABLE ECCENTRIC WEIGHTS MOUNTED ON SAID SHAFT ADJACENT SAID FIXED WEIGHTS, MEANS FOR VARYING THE ECCENTRICITY OF SAID MOVABLE WEIGHTS RELATIVE TO SAID FIXED WEIGHTS, AND MEANS FOR SECURING SAID MOVABLE WEIGHTS IN A SELECTED POSITION OF ADJUSTMENT, SAID LAST MENTIONED MEANS BEING ACCESSIBLE FROM THE EXTERIOR OF SAID CASING.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440798A US3339422A (en) | 1965-03-18 | 1965-03-18 | Electric motor driven vibrator and adjusting device therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440798A US3339422A (en) | 1965-03-18 | 1965-03-18 | Electric motor driven vibrator and adjusting device therefor |
Publications (1)
Publication Number | Publication Date |
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US3339422A true US3339422A (en) | 1967-09-05 |
Family
ID=23750224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US440798A Expired - Lifetime US3339422A (en) | 1965-03-18 | 1965-03-18 | Electric motor driven vibrator and adjusting device therefor |
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US (1) | US3339422A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3435564A (en) * | 1965-10-22 | 1969-04-01 | Roto Finish Co | Vibratory motor assembly for finishing machine or the like having adjustable eccentric weights |
US3479806A (en) * | 1965-08-30 | 1969-11-25 | Int Harvester Co | Inertia shaker construction |
US3750484A (en) * | 1971-06-16 | 1973-08-07 | P Benjamin | Centrifugal thrust motor |
FR2382950A1 (en) * | 1977-03-10 | 1978-10-06 | Wacker Werke Kg | BALOURD OSCILLATION GENERATOR |
US4291490A (en) * | 1978-09-20 | 1981-09-29 | Tomy Kogyo Co., Inc. | Moving toys |
US4454780A (en) * | 1981-07-06 | 1984-06-19 | Ingersoll-Rand Company | Vibratory mechanism |
US4978011A (en) * | 1987-05-19 | 1990-12-18 | Buhler Gmbh | Sorting machine for grained products |
US5005439A (en) * | 1989-07-14 | 1991-04-09 | Barry Wright Corporation | Inertia force generating device |
USRE35073E (en) * | 1989-01-18 | 1995-10-31 | Gary N. Martin | Apparatus and method for removing oil spots from a surface |
US20040168531A1 (en) * | 2003-02-24 | 2004-09-02 | Sakai Heavy Industries, Ltd. | Vibratory mechanism and vibratory roller |
US10344439B2 (en) * | 2017-09-13 | 2019-07-09 | Wacker Neuson Produktion GmbH & Co. KG | Soil compacting device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE528087A (en) * | 1953-04-24 | 1957-01-18 | ||
FR1202229A (en) * | 1958-03-01 | 1960-01-08 | Improvements to rotary vibration generators | |
DE1103658B (en) * | 1960-03-19 | 1961-03-30 | Frankenwerk Maschinenfabrik Ge | Device on Ruettlergehaeusen |
-
1965
- 1965-03-18 US US440798A patent/US3339422A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE528087A (en) * | 1953-04-24 | 1957-01-18 | ||
FR1202229A (en) * | 1958-03-01 | 1960-01-08 | Improvements to rotary vibration generators | |
DE1103658B (en) * | 1960-03-19 | 1961-03-30 | Frankenwerk Maschinenfabrik Ge | Device on Ruettlergehaeusen |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3479806A (en) * | 1965-08-30 | 1969-11-25 | Int Harvester Co | Inertia shaker construction |
US3435564A (en) * | 1965-10-22 | 1969-04-01 | Roto Finish Co | Vibratory motor assembly for finishing machine or the like having adjustable eccentric weights |
US3750484A (en) * | 1971-06-16 | 1973-08-07 | P Benjamin | Centrifugal thrust motor |
FR2382950A1 (en) * | 1977-03-10 | 1978-10-06 | Wacker Werke Kg | BALOURD OSCILLATION GENERATOR |
US4236417A (en) * | 1977-03-10 | 1980-12-02 | Wacker Werke Gmbh & Co. Kg | Unbalance oscillation generator |
US4291490A (en) * | 1978-09-20 | 1981-09-29 | Tomy Kogyo Co., Inc. | Moving toys |
US4454780A (en) * | 1981-07-06 | 1984-06-19 | Ingersoll-Rand Company | Vibratory mechanism |
US4978011A (en) * | 1987-05-19 | 1990-12-18 | Buhler Gmbh | Sorting machine for grained products |
USRE35073E (en) * | 1989-01-18 | 1995-10-31 | Gary N. Martin | Apparatus and method for removing oil spots from a surface |
US5005439A (en) * | 1989-07-14 | 1991-04-09 | Barry Wright Corporation | Inertia force generating device |
US20040168531A1 (en) * | 2003-02-24 | 2004-09-02 | Sakai Heavy Industries, Ltd. | Vibratory mechanism and vibratory roller |
US7213479B2 (en) * | 2003-02-24 | 2007-05-08 | Sakai Heavy Industries, Ltd. | Vibratory mechanism and vibratory roller |
US10344439B2 (en) * | 2017-09-13 | 2019-07-09 | Wacker Neuson Produktion GmbH & Co. KG | Soil compacting device |
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