US2372749A - Mounting means for motor fan units of suction cleaners - Google Patents

Description

April 3, 1945. c. H. TAYLOR MOUNTING MEANS FOR MOTOR FAN UNITS OF SUCTION CLEANERS Filed Jan. 19, 1 945 2 Sheets-Sheet l F'lG.1.

INVENTOR CHARLES H-TRYLOR.

A ORNEY WITNESSES:

April 3, 1945. c. H. TAYLOR MOUNTING MEANS FOR MOTOR FAN UNITS OF SUCTION CLEANERS 2 Sheets-Sheet 2 Filed Jan. 19, 1943 FWGhG Fig.5.

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Patented Apr. 3, 1945 MOUNTING MEANS FOR MOTOR FAN UNITS OF SUCTION CLEANERS Charles H. Taylor, Springfield, Mass., assignor to Westinghouse Electric & Manufacturing .Company, East Pittsburgh, Pa., a corporation of Pennsylvania Application January 19, 1943, Serial No. 472,816

12 Claims.

My invention relates to a suction cleaner and it has for its primary object to produce an improved mounting for the suction-creating device, or fan-motor unit, within the casing of the cleaner.

A further object of my invention is to provide a novel mounting of the motor housing within the casing of a suction cleaner whereby the contact brushes or" such motor can be readily adjusted or renewed, without the necessity of any material dismantling of the parts, and while the motor is still mounted in operative position.

A still further object of this invention is to produce a resilient mounting of the fan-motor unit within the casing greatly to reduce w'bration and resonance.

A still further object of this invention is to produce a novel mounting for the fan-motor unit of a cleaner of this character which is of a very simple construction so as to be readily assembled or dismantled, with a minimum of time and effort, to facilitate replacement or repair.

A still further object of this invention is to produce a novel assembly whereby an effective seal is established between the fan chamber of the fan-motor unit and the inside of the casing of the cleaner so as to cause all the air sucked by the fan to flow through or around the motor housing,

- These and other objects are efiected by my invention as will be apparent from the following description and claims taken in accordance with the accompanying drawings, forming a part of this application, in which:

Fig. 1 is a side elevational view of a suction cleaner embodying my invention, a portion of the outer casing being broken away and certain parts being shown in section;

Fig. 2 is a sectional view on line IIII of Fig. l, certain arts being broken away and certain parts being shown in elevation;

Figs. 3, 4, and 5 are, respectively, a top plan View, a side elevation, and an end elevation of a resilient annular member supporting the motor;

Fi -6 is a view partly in side elevation and partly in vertical section, of another type of cleaner provided with a modified form of my invention, certain parts being shown in section and others in elevation, and a part of the casing being broken away;

Fig. 7 is a view taken generally on line VlI-V1I of Fig. 6, certain parts being shown in section and certain parts being shown in elevation, and

i a part of the fan-motor housing being broken away; and,

can be made of other desirable substitutes.

Fig. 8 is, on enlarged scale, a perspective view of a part of the supporting device embodying my invention.

Referring to the drawings for a more detailed description of my invention, l0 designates a suction cleaner provided with a nozzle I2, a dust bag l4, and a fan-motor unit including a motor housing l6 and a fan chamber IS in the usual manner. The suction cleaner is supported by the usual wheels 19 and is provided with the usual propelling handle 20. The casing 10 is preferably made of upper and lower complementary parts 22 and 24 which are suitably clamped together, in a manner not shown, to form a generally elongated cylindrical chamber 25, which encloses the fan-motor unit as clearly seen from Figs. 1 and 2. i

In order to mount the fan chamber in a resilient manner, to counteract vibration and reschance, and in order to produce an airtight seal between the fan chamber I8 and the insideof the cylindrical chamber 25, I use a ring 21, which is preferably made of rubber, but which can be made of any other resilient or flexible soundabsorbing material.

In order to mount the motor housing I6, I use an annular member 29, which is also preferably made of rubber, but which like the member 21 The annular member 29 is provided with laterallyprojecting bosses 30 and 32, which, as will be seen from Figs. 2, 3, and 4, are provided with openings 33 and reduced outer end portions 34. The junction of each of the portions 34 with the body portion of the bosses 30 produces a shoulder 35.

The motor housing I6 is provided with through sleeves 31 which extend through suitable openings in the motor housing and through which brushes 38 are inserted to coast with the motor commutator 39. The brushes 38 are retained in position and adjusted by the usual screws 40 and spring 4|. As will be seen from Fig. 2, the sleeves 31 extend through openings 33 in the bosses 30 and 32 so that the brushes 38 and the brush retaining members 40 and 4| are accessible at all times without disturbing the motor housing assembly. The upper and lower walls 22 and 24 of the cylindrical chamber 25 are provided with openings 42 in which the reduced ends 34 of the bosses 30 and 32 are engaged. The cleaner includes a decorative cover 44 which is easily applied to the casing and easily removed, the same being held in position by any suitable latch (not shown).

Whenit is desired to adjust, renew, or remove In Figs. 6 to 8, inclusive, I show a different forms, it will be obvious to those skilled in the form of cleaner, including a casing l0',- a dust bag M, a motor housing It, and a fan chamber l8. At its inlet end the casing I0 is provided with a hose 45 which carries a cleaning tool, not shown. At its opposite end the casing fll'is provided with an exhaust opening 48 provided in the end cap 41, which is detachably secured to the casing ID as at 49. The exhaust opening 48 is guarded against entry of foreign objects by a foraminous sleeve or a coiled spring arrangement 50. Amotor support is provided withian opening .52, into which the reentrant portion 54 of the end cap 47 is inserted (see Fig. 1). The support 51 is provided with apertures 55 for the screws 56, or, the like, which secure the support 5f to the end cap 1.; r

The support 5! .is also provided with opposite arms or brackets 57 and 58, these arms being provided with openings 59 in which the reduced portions-34' ofthe members 60 and 62 are engaged. The arms, 51 and 58 may,.if desired, be made of spring metal so as to afford a resilient support for the motor. In this construction the annular member 29 is dispensed with and themembers 60 and 52,. except for being separate units, are identicalwith the bosses 30 and 32. The fan chamber I8 is supported by the annular member 2'! which maybe of the cross section shown or of any other desired cross section. The contact brush- -assembly in this construction is identical with-that shown in Fig. 2 and hence need not be further described.

When it is desired to adjust or remove the commutator brushes, the screws 49 and 56 are disengaged. This permits the end cap 41 t be removed and the brushes are now accessible without removing the motor from the support 5L. If it is desired .to remove the motor-tan unit from the casing it is only necessary to disengage,

the screws 49 whereupon the end bell and the motor, carried thereby can be detached from the casing 1| 0 In order to provide temporary support for the motor 16', when the end cap l'l has been detached, the arm 58 of the motor support 5! may be .providedwvitna leg ti adaptedto reston the inner Wall of the casing under the weight of the motor it, When the end cap' l'l is assembled as shown in Fig. 6 the leg 5! is inoperative. i

It will thus beseenthat I have produced'a flexible motor mounting which is inexpensive to make and assemble. It will also be seen that my novel mountingafiords easy access to the commutator brushes without the necessity of remov ing the motor from its housing or-removing the motor andits housing from the. casing of the cleaner, it being merely necessaryto remove the cover 44in Fig. l,'or end cap ll in-Fig. 6, to expose the members 30 and 32 or 6D and 62, These advantages result from my novel construction in which the members 30 .and,32, and 68 and 62, resiliently support themotor aiiord ready access to the commutator brushes and are themselves readily accessible. .WhileI have shown my invention in? several art that it is not so limited, but is susceptible of various other changes and modifications without departing from the spirit thereof, and I desire, therefore, that only such limitations shall be placed thereupon as are specifically set forth in the appended claims.

What Iclaimis: i i

1. In a suction cleaner or the like, the combination of a casing, a motor disposed in said casing and having commutator brushes, and means for mounting saidmotor in said casing, including gaging said members.

resilient members having apertures therein registering with, and affording access to said contact brushes,-'said casing having supporting means en- -2. ma suctioncleaner or the like, the combinationof a casing, a motor disposed in said casing and having commutator brushes, and means for mounting said motor in said casing, comprising resilient members having apertures therein registering with, and affording access to said contact brushes, and resilient supporting means carried by said casing andengaging said members.

3. In a suction cleaner, the combination of a casing, a motor disposed in said casing and having commutator brushes, a means for mounting said motor in said casing, comprising resilient members having openings therein affording ac-, cess to said brushes and having reduced outer portions, andsupporting means carried by said housing and having openings therein engaging said reduced portions.

4. Ina suction cleaner, the combination of a casing, a motor ho'usingin said casing, a motor disposed in said housing and having commutator brush retaining elements accessible through openingsfin said housing, a fan chamber connected to said motor housing, and means for mounting said motor housing and said fan chamber in saidcasing, comprising a resilient annular member surroundingsaid fan chamber and abutting :against the inside of said casing, resilient members carried by said housing and having apertures. therein afiording access to said retaining element, and supporting means carried by said casing and engaging said members.

5. In a suction cleaner, the combination of a casing, a motor housing in said casing, a motor in said housing, said. housing havingapertures for-insertion oi motorvcommutator brushes, and meanseior supporting said motor housing in said casing comprising an annular resilient member surrounding said motor housing, and resilient bossescarried by said annular member and having openings therein affording access to said brushes, and annularsupporting means carried by said casing and engaging said annular memberrand said bosses: Y i 3 -6. In a-suction cleaner, 1 the combination of a casing, a motor housing in said casing, a motor in said'housing, commutator brush retaining elements for said .motor projecting from said housing,and.means for supporting said motor housing in saidCasi ng, comprising resilient members having apertures through which said brush retaining elements vare-accessible, and supporting means carried-by said casing and engaging said members, said -.suppor-ting.means having openings therein registering with said apertures.

'7. Ina suction cleaner, the combination of a casing, amotor-housing in said casing, a motor in said housing, commutator brush holding elements.for-saidmotor-projecting from said housing, and means for mounting said motor housing in said casing comprising resilient members affording access to said brush retaining elements, and brackets carried by said casing and engaging said members, said brackets having openings therein registering with said apertures.

8. In a suction cleaner, the combination of a casing, a motor housing in said casing, a motor disposed in said housing and having commutator brushes accessible through openings in said housing, and means for mounting said motor housing in said casing comprising, supporting means carried by said casing in spaced relation to said motor housing, and resilient and sound insulating members intermediate said housing and said supporting means, there being registering openings in said supporting means and Said resilient members aiiording access to said brushes.

9. In a suction cleaner or the like, the com bination of a casing having motor-supporting portions, an electric motor therein including a motor housing or frame, resilient spacer members between said motor housing and said supporting portions, and brush-holding sleeves extending through registering openings in said spacer members and said motor housing, said sleeves being accessible through registering openings in said supporting portions whereby commutator brushes may be inserted from the exterior of said supporting portions Without removing the motor.

10. In a suction cleaner or the like, the com bination of a casing having motor-supporting portions, an electric motor therein including a motor housing or frame, resil ent space members between said motor housing and said supporting portions, and brush-holding sleeves extending through registering openings provided in said supporting portions, said resilient spacer members and said motor housing, whereby commutator brushes may be inserted in said sleeves from the exterior of said supporting portions Without removing the motor.

In a suction cleaner or the like, the combination of a casing having motor-supporting portions, an electric motor therein including a motor housing or frame, and resilient spacer members between said motor housing and said supporting portions, said motor housing and said spacer members having registering openings therein for receiving commutator brushes for said motor, there being openings in said motor-supporting portions registering with, and affording access to, said first-mentioned openings and said brushes.

12. The structure recited in claim 11 in Which which said spaced members have reduced outer end portions and in Which said reduced outer portions extend through the openings in said motor-supporting portions.

CHARLES 9i. TAYLOR.

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