US1569089A - Friction hinge - Google Patents

Description

J. J. FRICTIOH Hmm Filed May 5, 1924 Patented Jan. 12, 1926.

UNITED STATES PATENT OFFICE.

JOSEPI'I J. JANCA, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE EMERSON ELECTRIC MFG. C0., OF ST. LOUIS, MTSSOURI, A CORPORATION OF MISSOURI.

FRICTION HINGE.

Application `filed May 5,

To aZZ witam it 'may Gomera Be it known that Josnrrr J. JANCA, a citizen of the United States, rcsiding at St. Louis, `viissouri, have invented a new and useful Friction Hinge` of which vthe foilowing is a specification.

This invention relates to improvements in friction hinges, and consists in the novel construction hereinafter disclosed.

An object of the invention is to provide a friction hinge particularly adapted for joining a stationary base section. of an electric fan with the motor housing, whereby the angularity of the motor housing may be zu'ljustedv without loosening the clamping means of the hinge.

Additional advantages of the invention will be. apparent from the following detailed description thereof taken in conection with the accompanying drawings, in which F ig. l is a rear elevation of a fan embodying the inventon.

Fig. 2 is a Vertical section through the hinge construction.

Fig. 3 is a Vertical section taken at right angles to Fig. 2.

Fig. at is a detailed view of the clamping plate. i

Particularly in the construction of electric fans, comprising a stationary base and a movable upper se:tion composed of the motor housing, and the fan shaft and fan carried thereby, diificulty has been experienced in providing a suitable hinge joint of simple construction and yet efiic'ient to hold the upper section of the fan in different angular adjustments without loosening' the clamping' means of the hinge. The. rocking of the upper section of the fan on the pintle of the hingerin the former constructions has resulted in a loosening of the retaining means so that each time the upper section was adjusted the clamping means of the hinge ordinarily would have to be reset. This diffic'ulty has been overcome by the present vention.

In the embodiment of the present invention illustrated .in the drawing the hinge construction is shown as incorporated in an electric fan comprising a base section which includes a conical pedestal 1 having a bifurcated extremity composed of spaced fianges and 3 constitnting the stationary part of the hinge. The fiange 2 has a threaded opening t through a thckness thereof and the 1994. Serial No. 711,290.

fiange 3 has an opening 5 of relatively larger diameter than the opening' 4, said two openings being in aXial alinelnent.

Depending from the motor housing` 6 is an extension 7 constituting the movable hlnge portion of the hinge joint. The width of the extension 7 is slightly less than the width of the space between the inner faces of the fianges 2 and 3, thereby provding av space between one side :face of the member 7 and the inner face of the fiange 3 for the reception of a relatively thin clamping plate B. The plate 8 has av horizontal lower edge that fits against the base of the opening between the inner faces of the flanges 2 and 3, preventing turning of the plate, and the upper edge of the plate is rounded to conform to the general Contour of the upper edges of the fianges 2 and 8. The plate 8 is provided with an opening 9 so spacefd that when assembled the opening 9 will be in axial alinement with the openings Lland 5, and the member 7 has an opening 10 which in assembled relation registers with the opening 9. The opening 9 is in the form of a circular hole of less diameter than the circular opening 5 in the flange 8.

The. pintle of the hinge comprises`l a wing screw having a cylindrical portion 11 the extremity of which is threaded for screw engagement with the threaded opening i in the flange 2. The inner portion of the. cylindrical section of the screw in assembled rela tion lies Within the opening 10 in the member 7 and is of a diameter slightlj7 less than the opening 10, permitting the mo'vement of the movable portion of the hinge thereon. The plate 8 is fitted in the space between one face of the member 7 and the inner face of the flange 3, the portion ll of the Wing screw passing through the opening 9 in the plate 8. The screw is further provided with an enlarged cylindrical portion 12 and a Wing' section 13 for manual manipulation. The diameter of the portion 12 is relatively larger than the opening 9 in the plate 8 and slightly less than the opening 5 in the flange.

The plate 8 is preferably stamped out of sheet steel and the matching face of the member 7 therewith is preferably faced off' so that asliding engagement between the two results.

The clai'nping action of the hinge results by tightening the wing screw into the threaded opening 4, drawingfithe shoulder formed by the edge of the section lagainst the marginal edges of the opening 9 in the plate 8? the plate in turn impinging against the face of the mei'nber 7. The frieiional engagement thus accomplished between the plate 8 meinbei T is sufiieient to retain the movable s ,cfion of the fan in set angular adjustment-s. The moveinent of the upper section of the n w not looseu the clamping serew,` as seren' free to nn'n'e'in the opening 10 'neniizer 'M andno 'frictional yeng'age-- i to the sercu' as the member i'oelzed on its pivot. i

Will be ui'idcrsfood tli-it the'housing 'i supports he fan shaft l-l on the forward 'l of which is mouul'ed the fan blades a l if desii'ed, a fan guard 16.

l'hile 1 have described the embodimentf of 1the si'ricture as pai''icularly adapted for use in connection with a fan of the 'type diselosed, it is clear that other and further uses of the structure may be made.

do not limit myself, therefore, to the exact construction or to the preferred embodiment of the invention, but `what I claim and (lesire to secure by Letters Patent is:-

l. A friction hinge comprising a statonary member composed 'of rigid spaced flanges one of which has a threaded hole and the other of'whic'hihas a holeV of'la'rger diameter and in alinement With the threadedhole.

a inovable 'member'between:said fiangea a plate between 'the' fiange having-'thelargerv hole' and said 'movable1niember, -said movable member and said plate'vhaving holes in aliney mentl With theholeslin said flanges; and

and the side face of the' said plate being arranged' to make contact with the movable `-member substantially throughout the area of the plate, a clamping screw. passing through said larger hole and through the holes in said plate .'and the movable member and engaging the hole in the other flange and forming a pivot upon which said movable member turns, and an enlarged"cylindricalportion on said sorew in said larger hole arranged to press against the plate and to' impinge the same against the side Wall of the movable member.

2. A friotion hinge con'iprising a stationar),Y member having rigid spaoedv flanges and a horizonfal Wall atthe base of the' fi'anges intermediate lhe same, and one of zsaid llauges having a threaded h'ole 'and the other having ahole of larger diameter Iinalinement with the threaded hole, af-.movable member'between said fianges,` ap'late disposed between the movable'fmember- 'and one of'the'flanges, said plate having ahorizontal lower'edge arranged to seat agamst the horizon'tal Wall of the' Vstationary Vmember cal portion which. passes through'thelarger' hole m one of sald fianges, said cylindrical portion being arranged to press againstfthe plate and to elamp `vsaldjplate against the vside Wall of said movablefmember substan- *tially throughout the area of the plate,

Whereby the movable memberiis frctionally held against displacement.

JosnPH J. JANGA.

Images