US2478829A - Combined motor support and fan guard mounting - Google Patents

Description

g- 1949- J. A. LECHTENBERIG 2,478,829

COMBINED MOTOR SUPPORT AND FAN GUARD MOUNTING Filed June 10, 1946 IN VEN TOR.

Patented Aug. 9, 1949 STATES consummate SUPPORT Ami GUARD Moonr se Joseph A. Lechtenbei'g, Kansas City, Mo.

Application June 10, 1946, Serial No. 675,772

This invention relates to article supports in the nature of those designed to carry electric motors forming a part of a fan assembly and the primary aim is the provision of such a support that is equipped with means for carrying the guard for the fan blades in such fashion as to prevent imparting vibrations to the guard because of the action of the motor and blades that are mounted upon the shaft thereof.

One of the most important objects of this invention is the provision of a combined motor support and guard mounting that is capable of adjustabiy carryin the motor of a fan assembly where the blades of the fan are protected by a guard wholly and solely carried by the mounting without attachment of any nature whatsoever directly to the motor.

Other aims of the invention are to provide a mounting of the aforementioned character wherein the body thereof is formed to adjustably receive the motor for independent movement with its supported blades to dispose said blades in proper operative relation to the guard.

Further aims of the invention will appear during the course of the following specification referring to the accompanying drawing, wherein:

Fig. 1 is a perspective view of a combined motor support and fan guard mounting made in accordance with the present invention; and

Fig. 2 is a rear elevational view thereof.

In the form of the invention chosen for illustration, the mounting is shown associated with a conventional electric motor Ill having the usual shaft l2 and fan blades 14 associated therewith.

It is this type of equipment that my mounting is designed to accommodate and as illustrated in Fig. 1, the motor I and conventional guard it are carried by a substantially L-shaped body broadly designated by the numeral l8. This body is referably cast from some light material such as aluminum and one leg of body l8 has a mounting bracket 22 integral therewith and depending from the normally lower face thereof. Leg 20 of body I8 is slotted as at 24 to receive conventional anchoring bolts that hold motor H) in a desired position when the unit is assembled for operation.

A switch 25 is conveniently mounted on the bottom of leg 20 of body I8 through the medium of the said mounting bracket 22 and it is this switch that controls the flow of current to motor I0.

A standard 28 enters between the component portions of mounting bracket 22 as shown in Fig. 2 and a bolt or the like 30 operably intercon- 3 Claims. (Cl. 230-273) nects bracket 22 and standard 28. The other leg 32 of body 18 has an opening 34 provided therein to clear motor shaft 12 and the diameter of this opening 34 is substantially greater than the outside diameter of shaft I2 to insure a clearance therebetween. Strengthening fillets 36 between legs 29 and 32 of body I8 are employed and arms 38 are removably Secured to these fillets by bolts or the like 40. Additional arms 42 radiate from the upper end of leg 32 and the outer extremities of all of these arms 38 and 42 are hooked to engage a portion of guard Hi. When the guard is in place, blades l4 are well protected and the guard is secured in the operative condition with respect to said blades without contact with motor Hi, all of which insures that vibrations incident to the running of said motor III will not be imparted to guard It or any of the parts thereof.

Such construction as has been above described, eliminates the problems that have heretofore presented themselves with regard to destruction of the guard H5 or its supporting arms because of motor vibration. Not only is the original assembly rendered less expensive and expedited, but the cost of maintaining large fans that are now commonly used, is reduced to a tremendous degree. The combined motor support and fan guard mounting shown and specified has been actually employed to a point where advantages claimed therefor are proved. The particular form of the mounting illustrated may be altered without departing from the spirit" of the invention or scope of the appended claims.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent is:

1. A combined motor support and fan guard mounting comprising a substantially L-shaped body; a mounting bracket on one of the legs of the body; and a number of V-shaped members carried by the other leg of the body for mounting said fan guard, said first mentioned leg of the body having means for anchoring a motor thereto, the said other leg of the body being provided with an opening for the passage of the motor shaft.

2. A combined motor support and fan guard mounting comprising a substantially L-shaped body; a mounting bracket on one of the legs of the body; and a number of V-shaped members carried by the other leg of the body for mounting said fan guard, said members having hooks on ends thereof remote from the body for receiving the fan guard, said first mentioned leg of the 3 4 body being slotted to permit anchoring the motor UNITED STATES PATENTS thereto at desired distances from the other leg.

3. In combination with a motor having a shaft, 46 gggz a1 fan blades on the shaft and a guard for the 1442467 Chemesky 1923 blades, of a unitary body formed to support the 5 1'972654 Heath 1934 motor and the said guard independently of each 2'030993 L ang Egg 5E Feb 1936 other, said body including a flat wall having a 2129933 Huegnn 1938 plurality of arms extending outwardly from its periphery and in ii. plane through one face of said OTHER REFERENCES wall for mounting said guard. 10 Pa 1 u n ge 3 of catalogue of Charavay, Exhaust JOSEPH momma Ventilating Fans and Blowers, Hartzell Propeller REFERENCES CITED Fan Co., Piqua, Ohio, of April 1929.

The following references are of record in the file of this patent:

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