US2192391A - Plate spring - Google Patents

Description

Marchs, 1940. T RWEBER 2,192,391

PLATE SPRING Filed May 17, 1959 BV A ORNEY Patented Mar. 5, '1940 `PLATE SPRING Theodore R. Weber, '-Latrobe, Pa., assignor to American .Locomotive Company, New York, N. Y., a corporationof New York Application May 17, 1939, serial No. 274,157

l 2 claims. (c1. 267-54) The present invention relates to plate springs and more particularly .to spring endl clips therefor. j

An object of the present 'invention is to provide a spring end clip for a spring hanger which may be assembled with and disassembled from `a spring without lin any way vdisturbing the plate assemblage. i t,

A further object is to provide, yin a'clip as aforesaid, means preventing the los'sfrom the spring of the end portion of the main plate or of one of the other plates associated withthe clip, if such end portion should break off in service.

lA further object is to provide a clip having a I liner or wear'platev for supporting the spring` hanger. e v

vOther and further objects of and advantages achieved by the present invention will be ,ap-y parent from the following description of anap-y pended hereto'.

. Referring to the drawing forming a part of proved embodiment thereof,'and the claims apf this application, Figure 1 is a side elevation of a Ila() 2. Each of the plates is speared at its ends. The

main plate 3 has an elongated orifice 4 in each of its end portions, each Aof the orifices 4being spaced from the adjacent end of the spring.

The second platef has a similar but slightly longer elongated oriiice 6 disposed in alignment with each of the oriiices 4, and the'third lplate I has a shorter orifice 8 in alignment with each of the orifices 6. Each set of `three aligned orifices forms a receptacle 9 for a purpose later to be described. l v

A spring end clip IIJ is carried by the spring at each of its end portions. Each clip consists of a body portion II having a curved outer face l2 andl a flat inner facey I3. Two longitudinally spaced flanges I4 extend outwardly from the body portion II, each having a groove I 5, the grooves being opposed to each other. liner or Wear plate I6 is disposed on the face I2 and'- is held thereon against Vertical and longi-v tudinal displacement movementv by the grooves l5, in each of which an end of the liner I6 ts.

' tacle 9 and the inner face I3 is opposed to the the part 22 and a cotter pin 2li, disposed therein, fprevents vertical -displacement movement of the y lfaces 26 and 21.

A curved The liner is held against transverse displacement movement by the hanger (not shown) when the clip is in use. When the liner becomes worn, it may be replaced simplyby sliding out the old liner and sliding in anew one.

A lug I'l'pr'ojects inwardly from the face I3.

It includes an elongated major part I8 and a smaller part I9 of the same width as the part I8. The cornerformed by the junctionof lthe y lug with lthe inner face I3 is rounded out by a 10:

.y fracture-resisting groove n extending completely p around the lug. When the clip is assembled withv the spring, the lug is disposed within the recepouter face 2D :of the main plate. A resilient sheet of material 2| is disposed between the faces I3 and`20 so that there is no hard steel connection between the clip and'main plate.

The major part I8 has working clearance in the orifice Land-its elongation prevents turning 20 of the lclip relative to lthe spring. The part I8 i hasv greaterlclearance in the orifice t, which allows free flexing of the springv without danger of the clip interfering therewith; The part I9 is disposed in the o'rce `8 and has apart 22 projecting. therefrom beyond the inner face of the plate 1, which plate extends at either end beyond the ends of the adjacent plate inward therefrom in the usual manner. An orice 23 is formed in clip relative to the spring.

, Each clip further comprises two lugs 25 projecting from the inner face i3, one from each of the corners of theclip', which, when the clip is assembled` with the spring, are adjacent an end thereof.l The lugs 25 are shown projecting substantially the thickness of two plates. Each lugis' triangular in shape and has a longitudinal Y, face 26 in line with a longitudinal'edge of the clip, a transverse face 2l in line with a transverse edge `of the clip and an-inclined face 28 connecting the faces 2S and"2'i, the corners 4being rounded at the junctions of thev face 28 with` the AThe ends of the vspring plates are speared, as

e aforesaid, providing at the end of each plate, a

pair of inclined edges 2S. The main and second v plates of the spring are the same length and their edgesZS coincide. When the lclipv is assembled with the spring, a lug 25 isdisposed on either 50 side of the speared ends adjacent thereto ofthe main and second plates, with the faces 428 adjacent respectively the edges 29 of the main and second plates.` s

The'purposeof the lugs 25 is as follows:` Although the present clip is `designed so that it Will not injure the spring end due-to the load transmitted from, the clipto the spring, there will be ,times whena main platewill break-across its orifice 4. If there were no lugs 25 present, the l broken portion would be free to move outward untilit dropped from the spring. This would result in the clip tilting and only being partially harm'results from thebreaking of the mainplate. This feature of the presentinvention allows the use of a spring having a brokenmain plate end until it is convenient to replace the' mainplate, A

of furtherv injury to the springv` without danger or clip.l

Thebroken portion is, of.' course, held against lateral` displacement by the lugs-.and from dropf ping vertically downward by the second plate 5 adjacent it. If the second platefend shouldbreak it wi11-a1so be held in place b ykt1ie 1ugs 25 and the third plate 'I' adjacent thereto.

The speared spring ends and lugs 25 afford Ia convenient combination for accomplishing the aforesaid feature ofthe invention. However.,

various other means may beemployed to accom- C For instance, iftheplate plish the same results. ends were square, a ange projecting from the edge of the clip so that it overlapped the edge of the. mainplate,l would prevent outward longitudinal movement. of a broken end portion. lThis langecould also be employedin the case of a speared main plate if desired.

While there hasbeen hereinbefore described an approved embodiment of. this invention, it.

However; breakage ordinarily only occurs in the main plate..

2,192,391" v y will be understood that many and various changes and modifications inform, arrangement of parts and details of construction thereof may be Amade without departing from the spirit of the -invenv tion yand that all such changes and modifications as fall Withinthe scope rvof the appended claimsy vare contemplated as a part vof this invention.

The invention claimed and desired to be secured byLetters Patent is;

l. A plate spring' having ya pluralityy of con, secutive plates including an outer plate,l prtn'l'ided each ata corresponding end portion with an opening, said openings being combined to form a receptacle having amouth open to the exterior at the outer face of jsaid outer plate, said outerv plate,v being-Tout away at its corners providing clip-abutting edges; a clip having a body provided withfan-outerfa'cea'nd. an inner face, a lug prof.` vlecting ,from said inner face', said body inner.

face being. disposedy lopposite said outer plate/ outer face andsaidlug extending into and hav- 1 inga part projecting beyond said receptacle, said lug being insertible in and removable from said receptacle through saidgmouth, and a pair of.'

lugs projecting from said inner faceA at opposite said outer plate theretoward; and means coacting with saidfpart to secure said clipto said spring.v

2.' A plate spring having a plurality 'of' conj secutive` platesy including an outerv and] a spring hangerclip carried bysaid spring at.v an end thereof, having` kan outer race, `and :anV inner face-in engagement with said outer plate,

and a Wear plate disposedcn said outer. face, said -cliphaving longitudinally y'spacedfflanges vengag:-` v Aing opposite ends vof said wear plate and holding l said wear plate against displacement, said wear i plate being removable from said clip for replace-, -l ment by sliding transverse movement.

25 sides of said clip, one'adjaceht each of saidv edges,v 'n 1 preventingmovernent of the` adjacent' portion .of

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