US1780719A - Motor suspension - Google Patents

Description

Nov 4, 1930. T. w. PRICE: y 1,780,719

'MOTOR SUSPENSION Filed Nov. 6, 1928 Patented Nov. 4, 19.30

yTH()ll.1\l".l.01\`l` W. PRICE, OF NEW BRUNSWICK, NEW JERSEY Moron SUSPENSION Application filed November 6, 1928. Serial No. 817,604.

This invention relates to a motor suspension, and particularly to a motor suspension of the type designed to absorb the vibratory motion and hum of an operating motor or 5 the like.

A particular object of the present invention is to provide a device of this character which is of light construction, neat and attractive appearance, strong and substantial in use, one

which may be manufactured at-small cost, and which will possess a high degree of sound and vibration absorbing quality.

A more detailed object is to provide a mo'- tor suspension including a series of tension springs upon which the motor hangs, and to provide ay simple and eiicient form of resillent supporting means for said springs.`

v A further detailed object is to make up said supporting means as parts of a. simple portable frame work whereby the whole may be readily moved from place to place;

A further detailed object is to make the frame work of such form that the parts thereof constituting the supporting means for the tension springs will be in the form 0f cantilever springs. y

A further detailed object is to so construct the frame work that it will possess a desirable degree of resilience throughout for thereby lending to the resilient support of the tension springs.

Other objects and aims of the invention, more or less specific than those referred to above, will be in part obvious and in part pointed out in the course of the following description of the elements, combinations, arrangements of parts and applications of rinciples constituting the invention; an the scope of protection contemplated will be indicated in the appended claims.

In the accompanying drawing which is to be taken as a part of this specification, and in which I have shown merely a preferred form' of embodiment of the invention, there is shown a perspective view of a motor sup.-

is connected with t port for the suspension device constructed in accordance with the provisions of this invention, the motor device being shown in dotted lines in operative position thereon.v

Referring now to the exemplary structure illustrated in the drawing, the reference characters L, G and H indicate three standards spaced apart equi-distant or otherwise as may be required and connected together by a band or tie member 1 extending about them and be- 55 ing rigidly connected with them at their pomts of mutual contact as at 2, 3 and 4.

This band serves both to hold the standards connected together and to hold them in a substantially vertical osition as shown, and it 00 e standards at a levelintermediate the upper and lower ends of the standards, bein preferably relatively nearer to the lower en s.

.The lower ends of each of the standards are preferably turned to provide foot portions as 5-5, each foot portion having a hole as 6 therein for receiving a suitable screw or bolt by means of which the foot may be fastened down to a :floor or other support whenever 10 desired.

The upper ends of each of the standards are likewise turned or bent to rovide lateral eX-v tensions as 7, 8 and 9 projecting in the general direction of a common centre between the several standards. These extensions are formed with holes l0, or other appropriateV means by which the upper ends of a series of coil springs l1, 12 and 13 may be universally pivotally connected therewith, a convenient so method of attachment consisting of having hooked shaped terminals 14 of said springs engaged through the holes 10 asindicated.

The lower ends of these springs 11, 12 and 13 are connected with the motor platform 15 35 so as to support said platform suspended thereon, the connection between the springs and the platform being of a universally pivotal type, for instance ofthe same general character as thel connection between the wise according to preference or convenience in specific cases.

The points of attachment of the sprlngs 11, 12 and ,13 with the extensionsl'?, 8 and 9 respectively are at or nearthe lnner ends of said extensions and are hence spaced atV one side of the vertical plane of the standards so that any applied weight will tend to bow or bend the standards inwardly of the frame, thus placing said standards always under strain.

The openings 17 in the motor platform for receiving the spring ends 16 are preferably arranged in such relation to the standards thatA the springs extend from said openings in an inclined direction upwardly into connection with the standards, the inclination of the several springs being such that they converge downwardlyfrom the standards to the platform and thus exert a centering tendencyupon the platform suitable to hold the platform normally in a properly centered relationship between the standards while at the same time leaving the platform in a floating condition freely movable laterally in all directions. v

The standards L, G and H are each formed of resilient material, such as sprin steel or the like, so that they are capable o resilient flexing under the tension of springs 11, 12 and 13. Their lower end portions are firmly held by the band 1, as also, if desired, by fastening means through the openings 6 of the 4foot portions 5, so that they constitute can- Furthermore the' tilever or leaf springs. band 1 is preferably formed of a resilient springy material, such as spring steel, stra iron, or the like which although amply sti to hold the standards against any permanent distortion relative to each other is yet caable of a certain, almost imperceptible flexing or vibrating movement suitable to assist in absorbing the vibratory movements and hum of the motor.

Vibratory movement of the motor platform is impressed first upon the tension springs 11, 12 and 13, from these to the cantilever springs, and finally to the main frame element or band 1. The tension springs are relatively highly resilient. The cantilever springs are relatively less resilient, and the main frame element 1 is still less resilient. Vibratory movement of the motor platform is largely absorbed by the tension springs. In greatly reduced strength it is transmitted to the upper ends of the cantilever s rings where it is practically entirely absorbed), very slight movements of the lower portions of these canti-lever springs being permitted by the, resilient quality of the main frame band 1 which thus constitutes a means of absorbing such infinitesimal vibratory movements as reach it.

It will be understood that while the drawing herewith shows the device to include only three standards L, G and H, obviously any number of such standards may be employed grouped about a commbn centre with the motor platform suspended between themy collectively, and said standards being connected by the main frame band 1 and functioning in the same manner as above described.

As many changes could be made in this construction without departing from the scope of the invention as dened in the foJllowing claims, it is intended that all matter contained in the above description, or shown in the accompanying drawings, shall be interpreted as illustrative only and not in a limitin sense.

aving thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A motor suspension comprising a motor platform, a plurality of tension springs by which said motor platform is suspended so as to be freely movable in all lateral directions, and a plurality of substantially vertically disposed leaf springs having upper ends from which the upper ends of said tension springs are suspended, together with supporting-.means for said leaf springs en gaging the lower end portions thereof.

2. A motor suspension comprising a motor platform, a plurality of tension springs by which said motor platform is suspended so as to be freely movable in all lateral directions, and-a plurality of substantially vertically disposed leaf springs having laterally turned upper ends from which the upper ends of said tension springs-are suspended, together with supporting means for said leaf springs comprising a resilient member by which all of said leaf springs are connected together. 1

8. A motor suspension comprising a plurality of resilient standards spaced apart. about a common centre, a frame member extending about said standards being connected thereto at points spaced from the upper ends of said standards serving to hold them spaced in a substantially upright position with the upper ends of said standards left freely flexi le, a plurality of tension springs suspended by their upper ends from the upper end portions of said standards respectlvely, and a motor platform `arranged between said standards and connected with the'lower ends of said tension springs collectively.

4. A motor suspension comprising a motor platform, a plurality of tension springs by which said motor platform is suspended so as als to be freely movable in all lateral directions, and a plurality of substantially vertically'disposed leaf springs arranged about a common center and having their upper end portions 5 turned inwardlly, said tension springs being suspended by tl eir upper ends from the inner ends of said inwardly turned portions, together with supporting means for said'4 leaf springs engaging the lower ends thereof.

lo In testimony whereof I affix my signature.

THORNTON W. PRICE.`

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