US2586270A

US2586270A - Hold-down clip for idler rolls

Info

Publication number: US2586270A
Application number: US121577A
Authority: US
Inventors: Samuel J Spurgeon
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-10-15
Filing date: 1949-10-15
Publication date: 1952-02-19
Anticipated expiration: 1969-02-19

Description

Feb. "19, 1952 s. J. SPURGEON 2,586,270-

HOLD-DOWN CLIP FOR IDLER ROLLS Filed Oct. 15, 1949 imvzsmoz; Jam/4 u. JPukG PEI-5 ATTORNE Y5 Patented Feb. 19, 1952 UN STATES 2 586,27-.0 HQLD {DOW-N CLIP FOR IDLE R ROLLS s mu tlipiir Birmin ha Applicatipnzgoctqbcr 15, 194 9, SerialNo. 1215517 6 Claims. 1 My present invention relatesto meansiorsecuring idler rolls against vertical displacement relat o' he su po tin f ame t e eto Qne type of idler roll for belt conveyors and the like embodies ,a central shaft or axle sup" ported at each .end in upwardly opening slots provided in suitable brackets. -When placedin alignment transversely of the belt to form a troughing supportgtherefor, the ends of the axles of adjacent rolls are supported ,in brackets dis- I posed angularly to each other, the slots-for receiving the axles being provided in the upper ends of such brackets, In shipping such an assembly and after it is installed it is necessary to employ some form of readily detachable means for'holding'the axles against upward movement in the slots. One prior means to accomplish this result has consisted of clips engaging the ends of the axles and pins or the like passing through the upper ends of the supporting frame. Such meansis difiicult to install and remove and generally is not entirely satisfactory.

An object of my invention is to provide a clip for holding the ends of a pair of angularly disposed axles against relative vertical movement whereby the axles are both held within the grooves of their supporting brackets. An object is to provide a hold-down clip for the adjacent ends 0fidler roll axles which is so constructed that when placed about the axle it cooperates with the supporting brackets to hold the axles seated in the slots.

My invention contemplates a simplelJ-shaped clip one leg of which is narrower than the other leg whereby when engaged over the axles between the angularly disposed brackets the clip is held against-upward movement by the brackets and inturn holds the axles against upward movement and firmly seated in the bottoms of'the slots.

Another object is to-provide a clip ofthe character designated which shall be held against movement laterally of the axles and brackets by means of a pin passing through the legs of the clip itself, there being no physical connection between the clip and roll supporting brackets.

A further object is to provide an improved form of clip for the outer ends of the axles .of the outer rolls which shall be efiective, in combination with the clip at the inner ends .of the axles, to hold the rolls in place in .the supporting stander framework therefor.

My improved hold down clips are illustrated e acc pa thisapn qat nin which;

form a trough drawing forming a part of 2 Fig. 1 is a transverse elevational -view-of -a-ro l l stand showing my improved-clips for holding the axles of the rolls inplace therein;-and- ;iar tjljy in section; 1

Fig. 2 is anenlargediragmental detailedview of the-supporting brackets for adjacent-ends of a pair of roll axles withaclip in place-therebetween;

Fig. 3 is a detail sectional view taken-generally along line III-III of Fig. 2;

Fig. 4 is an isometricflview of the U shape d clip down in Figs. -lto 3 inclnsive;

Fig. 5 is a develcpedplan view at the clip shown inIig. 4; a

Fig. 6 is a detail sectional-view taken generally along line -VI-Vl of Fig. 2; Y

Fig. "l a fragrnental end elevaticnal "view showing my improved form of clip for use gait the outer ends Ofthe axles or the outer-rolls;

and

*Fig. 8 isa detail sectionalviewtaken generally along line VIIIV;II I of 7. I Referring now'to the drawings; and more 'p articularly to Figs. 1 to 6 inclusivef-I show at-fl'fl and. II a pair of end s pporting-brackets or Standards a t d .sunnq fith oute 19. 15 '5'? and I3 of an idler roll assembl (Theinterr ediate roll 14 ;-together withtherolls l Z and; l 3 ns UPP iQ ineu perfi sht;, i of a conveyor belt. I h standards are crqssbraced by a suitable member |'1, and the upper ends of the standards It and II are inwardly bent as indicated. Each of-the-rolls l2, 1:3 and 'lfie nbodias a ce ntrally disposed axle 13. The rolls lproper are m e o n abl bearin s, .notsh wn. intern supported on theaxlesql 8. The endso-f theaxles r c ou a l o t le d -g the 9 and the inner ends of the axles for the rolls l2 and Hi may be headed as indicated at 19. ;I .gi kewise, both ends of theaxles l8 of the roll -l4 rnay"be provided withtheheads l9.

In the-manner well understood'the'adjacent inner ends of the axlesior-the rolls 14-13 and l-4 |2 are supported in -Y-shaped'brackts 20 secured in asuitable -manner to the-cross member H. one leg tl of the brackets-20 may be formed integrally with the portions secured-to thecross member H. We1ded-0r otherwise sa cured to a side of the bracket? -is-;the leg 22 thereof and. which .is inwardly directed-with taspect to theleg 21 wherebyrzthe legsulienormal toethe axes of the: axle's'efor the rolls .l-2 and-=13, namely, parallel to :the: inwardly direoted upper ends ofitheubracketsgglflandilalfl The upperxends ste m 3 of the legs 2| and 22 are provided with upwardly openings slots 26. Likewise, the upper ends of the standards 10 and ii are provided with upwardly opening slots 21. The axles for the rolls are placed in these slots, and rest in the bottoms thereof.

The above described construction is old in the art, and as such forms no part of my invention. My invention consists in part in the provision of the U-shaped clip indicated generally at 28 adapted to be placed over the projecting ends of the axles between the legs of the brackets 20. With a clip 28 placed over the ends of the axles the axles are restrained against relative vertical movement. Consequently, if one axle moves upwardly the other moves in unison therewith. Under these conditions the ends thereof contact after a small amount of vertical movement due to the increase in the angle between the axes thereof, thus preventing further movement. The clip 28 may be made of a piece of flat steel stock. In the preferred embodiment I so shape the clip 28 that it wedges between the legs of the bracket 20 after a slight upward movement of the ends of the axles. To this end, the stock is so cut that there is a section 29 at one end which is narrower in width than the section 3| at the opposite end. The sections 23 and 3| are joined by a tapering section 32. With a piece of steel out as shown in Fig. 5 I then bend the same to U- shape as shown in Fig. 4, thus to provide a clip in which the upper leg 29 is narrower than the lower leg 3|, and in which the legs are joined by the tapering section 32, which latter section forms the base of the U. In each leg I provide a hole 33 for receiving a cotter pin 34 or the like.

In use, it will be seen that when the clips are inserted between the legs 2! and 22 the upper leg 29 contacts the upper portion of the faces of the brackets and the lower leg 3i contacts the faces of the brackets at a lower point. The rolls are thus held effectively against upward movement, since the edges of the clip are in contact with the converging sides of the legs of the bracket. The section 32 of the clip evenly contacts the surfaces of the legs 2] and 22 due to the gradually increasing width thereof commencing at the inner end of the leg 29 and proceeding downwardly. The bracket is held against lateral displacement of the ends of the axles by means of the cotter pin 34, the cotter pin being of such a size as not to'pass between the headed ends [9 of adjacent roll axles.

It will be apparent that the clip prevents the axles and rolls from moving upwardly out of the slots 26, and further that due to the shape thereof the clips cannot rotate about the axles. This is due to the fact that the legs and portion 32 are in contact with the faces of the legs 2! and 22 when the legs ofthe clip are substantially horizontal.

My invention further consists of the clip now to be described. At the outer end of the axles of the rolls l2 and I3 I provide a ring type clip 36 having an extension 31 thereon. The upper or ring portion of the clip fits over the headed end of the axle I8, and the clip is held to the end standards I0 and II by means of set screws 38. With the combination of the

clips

28 and 36 it will be apparent that the axles of the rolls are effectively prevented from becoming displaced upwardly out of the

slots

26 and 21.

From theforegoing it will be apparent that I have devised clips for holding the axles of conveyor rolls and the like in place within the supporting framework therefor. From a consideration of the drawings and the disclosure herewith, it will be apparent that the clips may be readily removed by withdrawing the cotter pins 34, or by removing the screws 38. It will be further apparent that with the exception of the screw 38 for the clips 36 there is no physical attachment of the clips to the supporting framework for the rolls. This is particularly advantageous at the brackets 20 due to the difficulty of gaining access to screws, bolts or the like placed at that point. In actual practice I have found that both the

clips

28 and 36 are extremely satisfactory, and economical of production. While in the preferred form the clips are constructed and arranged for the edges thereof to contact the adjacent faces of the legs of the bracket 20, it will be seen that a clip 28 of a width only suflicient to prevent relative vertical movement of the axle ends is an effective hold down device. My invention therefore contemplates the provision of such a clip although as stated I prefer to utilize the wedging effect described herein.

While I have shown my invention in but two forms, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various 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 I claim is:

1. In a troughing idler roll assembly of the type having centrally disposed roll axles and converging brackets having upwardly opening slots in which the ends of the axles are placed to extend past the brackets, a unitary U-shaped clip straddling the extending ends of the axles and having an upper leg narrower than the lower leg, a tapering base section connecting the legs, said legs and base section being of a width for the edges of the clip to engage the adjacent faces of said brackets, anda removable member joinin the legs on the side of said axles opposite the base of the clip.

2. For use in holding the ends of the axles of troughing idler rolls seated in the bottoms of upwardly opening slots provided in adjacent upwardly converging brackets and wherein the ends of said axles project through said slots, a clip straddling the projecting ends of said axles comprising a U-shaped strip of metal having an upper narrow leg and a lower leg wider than the upper leg, and a base section tapering widthwise and joining said legs.

3. For use in holding the ends of idler roll axles seated in the bottoms of upwardly opening slots provided in adjacent upwardly converging brackets and wherein the ends of said axles project through said slots, a U-shaped metal clip disposed to straddle the projecting ends of said axles, the upper and lower legs of the clip being of a width for the edges thereof to simultaneously engage the faces of said brackets, the base portion of the clip being tapered in width whereby its edges simultaneously engage the faces of the brackets, and a removable member connectin the legs of the clip on the side of the axles opposite the base.

4. For use in holding the ends of idler roll axles seated in the bottoms of upwardly opening slots provided in adjacent upwardly converging supporting brackets and wherein the ends of said axles project through said slots, a U-shaped metal clip of a size to straddl the ends of said axles and having legs longer than the diameter of said axles, one of said legs being narrower than the other and the base of the clip being tapered in width and connecting said legs, the respective width of the legs and base being such that the edges of the same simultaneously contact the adjacent faces of the supporting brackets when the clip is in place about the ends of said axles, and a removable member passing through the legs of said clip and holding the same against movement laterally of the axles.

5. The combination with an idler roll having an axle supported at each end in upwardly opening slots provided in supporting brackets one of which comprises a pair of inwardly converging legs and wherein the ends of said axles project through the brackets, of a U-shaped clip surrounding the projecting ends of said axles between the inwardly converging legs of said bracket, said clip being constructed and arranged when in place to wedge against the adjacent faces of said legs thereby to restrain theassociated end of the axle against upward movement, a removable member cross connecting the legs of said 6 clips on the side of the axles opposite the base of the clip, a second clip surrounding the opposite projecting end of the axle, and means to removably fasten the second clip to its associated bracket.

6. Apparatus as defined in claim 5 in which said second clip embodies a ring portion and an extension portion, and in which the means to fasten the same cOmprises a Screw passing through the extension portion and tapped into the bracket.

SAMUEL J. SPURGEON.

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

UNITED STATES PATENTS Number Name Date 1,574,511 Philips Feb. 23, 1926 2,127,643 Glossmann Aug. 23, 1938 2,312,610 Weiss et a1 Mar. 2, 1943