US2222422A

US2222422A - Vibrator

Info

Publication number: US2222422A
Application number: US309989A
Authority: US
Inventors: Nels A Nelson
Original assignee: RAYMOND T MOLONEY
Current assignee: RAYMOND T MOLONEY
Priority date: 1939-12-19
Filing date: 1939-12-19
Publication date: 1940-11-19
Anticipated expiration: 1957-11-19

Description

Nov. 1.9, 1940o N. A. NELSON I 2,222,422

vIBRA'ToR Filed Dec. 19, 1939 Patented Nov. 19, 1940 UNITED STATES VIBRATOR Nels A. Nelson, Chicago., Ill., assigner to Raymond T. Moloney, Chicago, Ill.

Application December 19, 1939, Serial No. 309,989

5 Claims.

The invention relates to a vibrator of the type having a platform upon which a person stands to receive a vibratory treatment. More particularly the invention relates to new and improved means for causing the platform to be vibrated so that a rapid shaking motion is properly transmitted to the person standing thereon.

The improved vibrator includes a housing for' the operating mechanism which in practice is preferably coin released, the vibrating platform having an exposed position outside the housing and conveniently placed to enable a person to step thereonto for treatment.

The main object of the invention is to provide an improved vibrator for the purposes stated.

Another object is to provide such a vibrator of unusually compact construction whereby a minimum of space will be occupied thereby. v

Still another object is to provide a novel, compact and foolproof power drive mechanism for rapidly vibrating the platform in the most effective manner.

Other important objects will no doubt become apparent to those versed in this art as the disclosure is more fully made. v

Briefly, the new vibrator embodies a base carrying a yieldably supported horizontal platform upon which a person is to stand. Said plat-,

form is associated with a suitable upright housing, the platform having rigidly connected to it, a bracket which extends into the housing, where it carries a bearing to journal a vertical shaft. Fast on this shaft is a disk or wheel carrying an eccentric or off-center weight. The shaft mentioned is flexibly connected to the shaft of an electric motor rigidly supported on the inside of the housing. When the motor operates the shaft and weighted wheel rotate very rapidly so that through the bracket a vigorous vibratory movement is imparted to the platform and the person standing thereon.

In the drawing, showing a practicable embodiment of the invention:

Figure l is a horizontal sectional view through the vibrator, taken along the line I-I of Figure 2, looking in the direction of the arrows;

Figure 2 is a vertical sectional View through the vibrator structure; and

Figure 3 is an enlarged elevational view, partly in section.

The improved vibrator embodies a suitable hase I0, including an appropriate, upright housn ries suitable rubber blocks I2 to support yieldably, a suitable substantially horizontal platform I3, one end of which is formed with a vertical ange i4. v

Adjacent said flange I4, the wall of the -hous ing i I is provided with an opening I5 and bolted securely and rigidly to said ange by bolts iii, is a bracket El. This bracket is passed into the housing II through the opening I5. The bracket also passes through an opening I3 formed in the lower end of a vertical wall or standard portion formed in the housing II, as shown.

Inside the housing II the bracket Il is horizontally disposed as shown, and carries a re-l movably positioned ball bearing 2i! of any suitable kind to support and journal a vertical shaft 2i. This shaft has secured to it, by a set screw 22V a horizontal wheel or disk 23 provided with an eccentric or off-center weight 24. This disk is positioned immediately above the bracket il. The shaft ZI extends above the disk 23 and is flexibly and drivingly connected by a rubber sleeve coupling 25 to the vertical shaft 26 of an electric motor 2 rigidly `secured within the housing II by bolts 28 to the wall or support I9, as shown. The motor is supported independently of the bracket Il. The base III is open as at 229 to give easy access to the interior parts described withinvthe housing II.

In use it will be understood that the motor 2l is connected to a usual source of commercial electric current and that the starting switch therefor may be operated by a conventional coin released means. Once started the motor can, in practice, be timed to run for any desired period of time.

In operation, a person desiring vibratory treatment stands on the platform I3. When the motor 2l is started the shaft 2I is rapidly driven at motor speed through the flexible cou- 40 pling 25 from the motor shaft 26. As a result the disk 23 is rapidly rotated at the same high speed. The off-center weight 24 sets up a rapid vibratory motion which through the shaft part 2| is directly communicated to the bracket I'I and platform I3 in an obvious manner. The rubber block supports I2, of course, permit said platform I3 so Vto vibrate. Because of the vertical axis of the shaft 2l it is found that a lateral vibration predominates in the platformv I3 which is desirable as it is not so easily transmitted upwardly through the spine of the person treated. 'I'he treatment is especially useful in relieving tired, aching feet.

It is the intention to cover all changes and modifications of the example shown for purposes of the disclosure Which do not in material respects constitute departures from the spirit and scope of the invention.

What is claimed is:

1. In la vibrator, a horizontal base, an upright housing at one end thereof, a yieldably supported platform carried at the other end of the base outside the housing, a bracket rigidly secured to the platform and extending into the housing through an opening formed therein, an upright shaft journaled on the bracket within the housing, an electric motor having a shaft, meansI rigidly supporting the motor above the bracket within the housing and in-` dependently of the bracket, means flexibly connecting the two shafts, and a disk secured to y the first shaft and provided with an off-center upright shaft journaled n the bracket within the housing, an electric motor having a shaft, means rigidly supporting the motor above the bracket within the housing and independently of the bracket, a flexible coupling drivingly connecting the two shafts, an off-center Weighted member secured to the first shaft whereby rotation of the shafts by the motor imparts vi- `bratory movement to the platform through the l bracket, said base formed with an opening to make the drive parts within the housing accessible.

3. In a vibrator, a horizontal base, an upright housing positioned at one end thereof, a yieldably supported platform carried at the other end of the base outside the housing, said platform having a rigid extension bracket portion protruding through an opening in the housing and into the housing, an electric motor positioned rigidly in the housing on a vertical axis and independent of the bracket portion, said motor having a vertical shaft, a vertical shaft journaled on the bracket portion, means flexibly and drivingly coupling said shafts, and an offcenter weight means rotatable with the shaft carried by the bracket portion whereby when the motor is operated a preponderantly lateral vibr'atory motion will be transmitted to the platform.

4. In a vibrator, a horizontal base, an upright housing positioned at one end thereof, a yieldably supported platform carried at the other end of the base outside the housing, said platform having a rigid extension bracket portion protruding through an opening in the housing and into the housing, an electric motor positioned rigidly in the housing on a vertical axis and independent of the bracket portion, said motor having a vertical ,shaftand eccentric means supported by Said bracket portion and drivingly and flexibly connected to the motor shaft to transmit a preponderantly lateral vibratory motion to the platform'when the motor operates.

5. Inv a vibrator, a horizontal base, a substantially horizontal platform yieldably mount,

ed thereon, an electric motor, a support on the base including means for rigidly mounting the motor in a raised position above the base with its motor shaft extending vertically downwardly,

said platform having ank extension bracket portion extending substantially horizontally below the motor shaft, a shaft journaled in the bracket portion in substantial coaxial alinement with the motor shaft, a drive coupling fleidbly connecting the two shafts, and an eccentric weight member made fast on the second shaft.

NELS A. NELSON.