US2151326A

US2151326A - Oscillating fan

Info

Publication number: US2151326A
Application number: US144631A
Authority: US
Inventors: Gustav H Koch
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1937-05-25
Filing date: 1937-05-25
Publication date: 1939-03-21
Anticipated expiration: 1956-03-21

Description

March 21, 1939. H KOCH 1 2,151,326

OSCILLATING FAN Filed May 25, 1937 WITNESSES: lNVENTOR w Gustav H [6 7 Patented Mar. 21, 1939 PATENT OFFICE OSCILLATING FAN Gustav H. Koch, Springfield, Mass., assignor to Westinghouse Electric 8; Manufacturing Company, East Pittsburgh, Pa., a corporation of Pennsylvania Application May 25, 1937, Serial No. 144,631

9 Claims.

My invention relates to oscillating fans and more particularly to the method of driving the oscillating mechanism of such fans.

An object of my invention is to provide an in- 5 expensive flexible coupling between the motor and oscillating mechanism which will be eflicient and silent in the operation thereof.

A further object or" my invention is to provide a motor resiliently mounted Within a housing and 10 flexibly coupled with the oscillating mechanism so that the vibrations of such motor cannot be transmitted to the housing, fan support, or oscil lating mechanism.

A further object of my invention is to provide 15 a housing which may enclose and support the oscillating mechanism, flexible coupling and driving motor, and which will be modern and artistic in general outward appearance.

Other objects of my invention will be either 20 pointed out specifically in the course of the following description of a device embodying my invention or will be apparent from such description.

In the accompanying drawing:

Figure 1 is a partial elevational and sectional view of a device embodying my invention;

Fig. 2 is a partial plan View of the device shown in Fig. 1 and,

Fig. 3 is a sectional view taken along the line IIL-III of Fig. l.

30, Referring to the accompanying drawing, I show a fan housing II, a motor I5 resiliently mounted therein, an oscillating mechanism 25, and a flexible coupling device 35 operatively associated with the motor I5 and the oscillating mechanism 25. 5 The housing I I may be substantially ellipsoidal in shape as shown, and may comprise a removable upper section I2 and a stationary bottom section I3. The upper section I2 may be rigidly attached to the bottom section I3 in any suitable manner 40 (not shown).

The motor I5 may be of any type desired and may be resiliently attached to the lower portion I3 of the housing II and located therein. The motor I5 may have a rotor shaft I9, one end 2! 4,5 of which may extend outside the motor housing, and upon which the fan blades may be attached. The other end of rotor shaft I9 may be located within the housing II and may have a threaded aperture 29 within the end thereof. The motor 5 I may be resiliently and rotatably mounted at one end by a pedestal I1 and cap I8, and along the bottom portion thereof by means of suitable resilient mounting bushings I6 which may be of rubber. The oscillating mechanism 25 is located within the housing II and it is preferred to have the housing therefor attached to the lower portion I3. Such oscillating mechanism 25 comprises an adjusting knob 29, an oscillating crank 2?, drive shaft 28, and suitable gearing 29 to change the 5 horizontal rotational energy of shaft 28 to the vertical rotational energy of oscillating crank 21. The gears 29 may be located Within a well 33, which may have a removable plate 34 rigidly attached to the top thereof. The crank 21 is 10 provided with a crank pin 2'! that is connected to a connecting rod 21a, the latter being pivotally carried by a suitable stationary portion of the fan structure such as, for example, a bracket 212). As is well understood, the fan motor housing ll is pivotally carried by the bracket so that it may oscillate.

The flexible coupling 35 may comprise a ventilating fan 30, a link 39 swingably attached thereto and a crank 36 operatively associated with the motor I5 and rotatably associated with the link 39. The ventilating fan 30 may be rigidly attached to drive shaft 28 by means of a set screw 3! and may have a plurality of fins or blades 32 located upon one surface substantially close to the periphery thereof and an aperture 4i located therein. The link 39 may be composed of any suitable material; however, it is preferred that such link be composed of a fibrous material or of leather. The link 39 may be swingably 30 attached to the plane surface of ventilating fan 39 by means of a suitable rivet 40'. The crank 36 may have one leg 31 thereof threaded to cooperate with the threaded aperture 20 of the motor I9. The other leg 38 of crank 35 may be 35 inserted through the aperture 4! located within ventilating fan 30 and may be rotatably attached to the free end of link 39 in any suitable manner.

It is, therefore, obvious that as the crank 36 is rotated about the leg 31 as an axis, leg 38 will pull 40 link 39, and due to such link being rotatably attached to leg 38 and swingably attached to ventilating fan 30, it will cause the ventilating fan 39 to rotate with shaft 28 about the axis thereof. Due to the leg 38 of the crank 36 being inserted 4.5 through aperture 4| and rotatably associated with link 39, it is obvious that such leg and the operatively associated link 39 may move relative to the ventilating fan 39.

In operating a device as hereinabove described, the motor I5 may be connected to the power supply by any suitable switching device (not shown).

As the rotor shaft I9 in motor I5 begins to rotate, the stator of the motor I5 will move or vibrate in relation to the shaft 29 of the oscillating mechanism 25 and the housing H. However, due to the flexible coupling 35 being interposed between and operatively associated with rotor shaft I9 and shaft 28 and the presence of the resilient bushings l6 between the motor and housing I I, the relative movement of the motor IE will not be transmitted to the oscillating mechanism or housing ll.

As the rotor shaft l9 rotates, crank which is operatively associated therewith, likewise rotates about such shaft as an axis. Since the leg 38 of crank 36 is operatively associated with link 39 and ventilating fan 30, such ventilating fan will likewise rotate. However, since the leg 38 and the free end of link 39 operatively associated therewith may move relative to the ventilating fan 30, the relative transverse and longitudinal movements of the motor l5, rotor shaft l9 and leg 31 of crank 36 will not be transmitted to the ventilating fan 39. It is, therefore, to be understood that, regardless of the relative movement of the leg 38 of crank 36 in respect of the fan 30, such leg, through link 39 and rivet 40, will transmit the rotational energy of the rotor shaft IQ of motor I5 to the ventilating fan 30 and operatively associated oscillating mechanism 25 void of all vibrations or undesirable movements of such motor and crank. The rotational energy of fan 30 is then transmitted to the oscillating crank 2'! through the operatively associated gears 29 where such energy may be used to oscillate the fan housing in any pre-described fashion, free from all the undesirable movements of the motor and crank.

It is, therefore, obvious that the resiliently mounted motor will operate any desirable fan located upon the shaft end 2| and will oscillate such fan and the housing in a pre-described orbit without transmitting the operating vibrations thereof directly to the housing I I and the suitable support therefor or to the oscillating mechanism 25 and oscillating crank 21. It is likewise obvious that, due to such resilient mounting of the motor l5 within the housing I l and the presence of link 39 between the crank and the oscillating mechanism, such device will be silent in the operation thereof.

Various modifications may be made in the device embodying my invention without departing from the spirit and scope thereof, and I desire that only such limitations shall be placed thereon as are imposed by the prior art and the appended claims.

I claim as my invention:

1. In combination, a housing, a motor resiliently mounted therein and an oscillating mechanism fixed thereto, and means comprising a crank enclosed by the housing for flexibly coupling the motor to said oscillating mechanism, said resilient mounting and flexible coupling serving to prevent transmission of motor vibrations to said mechanism.

2. In combination, a housing, a motor resiliently mounted therein, an oscillating mechanism comprising a ventilating fan attached to and located within said housing, and means comprising a crank and the ventilating fan for flexibly coupling the motor to said oscillating mechanism.

3. In combination, a housing, a motor resiliently mounted therein, an oscillating mechanism attached to and located within said housing, and means comprising a crank and a fibrous link for flexibly coupling the motor to said oscillating mechanism.

4. In combination, a housing, a motor resiliently mounted therein, an oscillating mechanism comprising a ventilating fan and a fibrous link swingably mounted thereon, and means comprising the ventilating fan, fibrous link and a crank operatively associated with the motor and rotatably attached to said link for flexibly couping the motor to said oscillating mechanism.

5. An oscillating fan-driving mechanism comprising a housing, a motor resiliently mounted within the housing having a rotor shaft one end of which terminates within the housing, a threaded aperture located therein, a threaded crank operatively associated therewith, an oscillating mechanism including a ventilating fan, a link swingably attached to said fan and rotatably attached to the free end of said crank, and means including said crank, link and ventilating fan for flexibly coupling the motor to said oscillating mechanism.

6. An oscillating fan-driving mechanism com prising a housing having an upper and lower section, a motor resiliently mounted within the lower section of the housing having a rotor shaft one end of which terminates within the housing, a threaded aperture located therein, a threaded crank operatively associated therewith, an oscillating mechanism including a ventilating fan, a link swingably attached to said fan and rotatably attached to the free end of said crank, means including said crank, link and ventilating fan for flexibly coupling the motor to said oscillating mechanism, and means including the upper section of said housing for enclosing the motor, oscillating mechanism and coupling means.

7. An oscillating fan-driving mechanism comprising a housing having an upper and lower section, a motor resiliently mounted within the lower section of the housing having a rotor shaft one end of which terminates within the housing, a threaded aperture located therein, a threaded crank operatively associated therewith, an oscillating mechanism including a drive shaft, the axis of which is substantially in line with the axis of the rotor, a ventilating fan removably attached to said shaft, a link swingably attached to said fan and rotatably attached to the free end of said crank, means including said crank, link and ventilating fan for flexibly coupling the motor to said oscillating mechanism, and means.

including the upper section of said housing for enclosing the motor, oscillating mechanism and coupling means.

8. In combination, a motor having a housing therefor, means for resiliently supporting the motor within the housing, an oscillating mechanism including a ventilating fan attached to said housing, and means comprising a structure rotatable with the motor shaft and said fan for flexibly coupling said motor to said oscillating mechanism, said last-mentioned means being enclosed by the housing and preventing the transmission of vibrations between the motor and the oscillating mechanism.

9. In combination, a housing, a motor resiliently carried by the housing and having a rotatable shaft, a fan carried by the motor shaft, means for oscillating the motor and fan, said oscillating means including a driven shaft, and means including a crank interposed between said shafts for effecting a driving connection therebetween, whereby shifting of the axes of one shaft relative to the other shaft is afforded.

GUSTAV H. KOCH.