US1981086A - Device for uniting package and bale hoops - Google Patents

Description

Nov. 20. 1934. ,1. BEAUVISAGE 1,981,086

DEVICE FOR UNITING PACKAGE AND BALE HOOPS I Filed July 23. 1932 3 Sheets-Sheet 1 In ven tor;

Nov. 20, 1934. J. BEAUVISAGE 1,981,036

DEVICE FDR UNITING PACKAGE AND BALE HOOPS Filed July 25. 1932 3 Sheets-Sheet 2 Inven Zor:

jazz 7 v fieau va'saye Nqv. 20, 1934. J BEAg |SAGE I 1,981,086

DEVICE FOR UNITING PACKAGE AND BALE HOOPS Filed July 23. 1932 5 Sheets-Sheet 3 Patented Nov. 20, 1934 PATENT OFFICE DEVICE FOR UNITING PACKAGE AND BALE noors I Johann Beauvisage, Cologne, Germany Applicatioii July 23, 1932, Serial No. 624,337

' In Germany May 23, 1932 11 Claims.

My invention relates to a method and device for uniting package and bale bands and the like. In order that the overlapping ends of metal bands for tying light packages and the band-iron binding for heavy cases and bales may be firmly united, it has been customary heretofore to employ devices in the form of pincers or small hand machines, the actual operative members of which, upon being moved forwards against the band and transverse to the longitudinal direction of the band, made embossings in same, after or without previous cutting of incisions therein, the two overlapping layers of band being immovably and inseparably held together by these embossings in a longitudinal direction and also-with or without the assistance of a metal sleeve placed over the jointtransversely to the plane of the band.

Besides effecting the union by means of connected tongues formed by parallel incisions made transversely or longitudinally to the direction of the band, it has also been proposed to bring about the fastening by bending together the overlapping band ends transverse to their longitudinal direction to form a tube, so that they may no longer separate in the transverse direction, and after or simultaneous with the formation of the double tubular member, impressions were made in the walls thereof, to prevent also a longitudinal displacement of the two walls of the tube.

All these well known devices require very considerable forces to make a strong and resistant union, because the deformations necessary to twist the overlapping band portions must be brought about by a single effort directed transverse to the band, or at the best by two of such pressing operations occurring successively. Furthermore, .due to the powerful grip of the tools effecting the union, the strength of the band material at the joint is more or less considerably weakened.

According to the'present invention, the defer mations necessary to bring about the union between the two overlapping band ends, are produced not as heretofore, but successively over the entire length of the joint at once,by arranging that the two tools bringing about the change of shape and which are combined into a common rolling motion, roll along the bands for the length of the desired union. The uniting of the two bands transverse to their length is preferably brought about by folding or creasing them together in their longitudinal direction. The fixing against displacement of the joint in the longitudinal dimotion is preferably brought about by alternately opposite impressions, which give the folded union a form corrugated in a series of short bends.

In applying the process there is the advantage that the resistive eflfort due to the deformations necesssary to make the union are distributed substantially uniformly over a rather long distance, because they are produced successively and by a rolling rotation of the pair of tool members. The maximum compressive forces essential to bring about these changes of shape and which determine the transmission ratio of the requisite lever mechanisms and the strength of the tool members, are considerably less than in the case of tools which bring about corresponding deforma-- tions by operative movements acting perpendicular to each other. Moreover the tools required are relatively simple in form' as they may be developed from the body of a pair of mutually engaging toothed pinions by making suitable excisions therefrom.

The invention will be understood more clearly by reference to the accompanying drawings which show preferred embodiments of the means for carrying out same, as well as other explana tory details.

Fig. 1 shows a side elevation of the invention disclosing the initial position of the two tools for bringing about the deformations by rolling to form the union.

Fig. 2 is a .plan view of the tools with the bale band located therebetween. 1

Fig. 3 gives a section through the pair of tools on line III-III of Fig. 1.

Fig. 4 is an axial longitudinal section on line .IV-IV of Fig. 3.

Fig. 5 shows a front elevation of a device for carrying out the process.

Fig. 6 a plan view in the rest position.

Fig. 7 the same in the working position,

Fig. 8 a section on line VIII-VIII of Fig. 6.

Fig. 9 gives a section on line IXIX of Fig. 6.

Fig. 10 gives a section on line XX of Fig. 6.

Fig. 11 is a partial end view of the device with v the carriage plate swung upwards.

Fig. ,12 shows an enlarged side elevation of the joint of the hoop,

Fig. 13 a plan view corresponding to Fig. 12.

Fig. 14 illustrates another type of binding device in partial plan. 14Fig. 15 gives a section online XV-XV of Fig.

The tools for carrying out the process are preferably in the form of two meshing pinions or small gear wheels 1 and 2, which have their spindles 3, 4 mounted in a slide or carriage plate 110 5, the gear wheels being located to one side of the carriage plate and gear wheel 1 being secured to and rotatable with its spindle 3. The

wheels 1 and 2 each have an annular recess 6, passing through all teeth and running round the greater portion of the periphery of the wheel and near the outer face of same; At mutually opposite places there are also excisions or insertion openings 7 which extend beyond the planes of therecesses 6 and into which the ends of the metal bands 8, 9 to be joined (possibly having turned-over edges 10) may be introduced until they reach the plane of the recesses 6.

As will easily be seen, by a suitable contrary rotation of the two pinions 3, 4 the two insertion openings will move away from each other so that the metal bands will first be engaged by the .bottoms of the recesses 6 and then pressed together in a transverse direction, sothat a com mon'longitudinal folding of the band ends results. In order to ensure the same direction of bending, that is the folding of the end of the inner band into the outer one, the metal band, previously prepared for the purpose is given a slight preparatory bend. When bands with turned-over edges are used, the longitudinal folding generally takes place in the correct manner without any preparatory bending. 4

During the further progress of the rotary motion, the bottoms of the recesses 6, walled at their ends by full depth portions of the pinion teeth, force themselves with rolling pressure laterally from the side into the band material now of four-fold thickness and by forcing same into the spaces between the teeth of the coacting wheel, which are preferably. somewhat widened, make lateral impressions or short corrugations 11 therein. At the same time the outer edges of the outside band end are so forced into the inside band end, that in the union with the transverse fold,-a separating movement towards the open side of the longitudinal fold is also impossible. Due to this and to the alternate lateral impressions, a very resistant union of two ends of the metal band is broughtabout. After completing one whole revolution of the two pinions, the two insertion openings 7 of the two pinions are again opposite each other, so that the finished joint is released.

A device which is suitable for making hoop fastenings by using the above described method, is shown in Figs. 5-11. On the flat base plate 12 of the 'mechanism a guide spindle 14 is mountedin two bearings 13 parallel to the surface of the base plate. The carriage plate 5 carrying the pinion tools 1, 2 is slidably and pivotally mounted on this guidespindle 14. At the side of the carriage plate opposite to that on which the two pinions 1 and 2 are located, a large gear wheel 15 is secured on the spindle 3' of the pinion 1 which spindle is rotatably mounted in the carriage plate. Engagingwith gear Wheel 15, is a small toothed wheel 16, which is secured to a crank-handle spindle mounted perpendicularly in the carriage plate. there is secured a crank-handle 18, by means of which the toothed Wheel 15 and the pinion 1 may be rotated. The second pinion 2 meshing with the pinion 1 is borne freely rotatable by a block 20 and on the carriage is a lug 19 which,

with the carriage in the position shown in Fig. 6, lies clear of the block 20 so that the carriage At the top of the. spindle.

can swing on the spindle 14. When, however,

of a spring 21 on the spindle 14 as in Fig. 7, the lug 19 engages on top of the block 20 so that the carriage cannot swing on its spindle. Thus during the crimping operation the carriage is held from swinging movement.

At a certain distance from the carriage plate when in its rest position at the right-hand side, a fiat rocker 22 is arranged pivotally about a vertical screw 23, upon the base plate. It is held in its rest position by a spring 25, secured to the base plate by means of a screw 24, so that it is urged against a stop pin 26 on the base. Arranged on the upper side of the rocker 22 is the flat body 27 of the bottom blade of the shearing device and this body has its rear end secured to said rocker by the screw 23. The blade 27 is fiat to permit it to be inserted between the band ends 8 and 9 without too greatly separating these ends. Approximately in the middle of its length this bottom blade is traversed .by a pin 28 pro- 1 truding from the rocker, its head serving as a edge of this top blade extends forwardly from its pivot and its opposing cutting edge is formed by the top edge of the narrow, adjacent face of the bottom blade portion situated in front of the protrusion 30. The top blade carries an upwardly directed angle arm 32, which is engaged by a spiral spring 33, Whose rear end engages with a spring support 34 arranged at the rear of the bottom blade member 27. A stop pin 30 provided on the protrusion 30 determines the rest position in which the top blade is held by the spring 33.

At a certain distance from the left-handsupport 13 for the guide spindle 14, a device is mounted on the base plate 12 whose duty it is, before or during the making of the union, to hold and if necessary to tighten the ends of the metal band forming the binding. This device is borne by a bearing lug 35 mounted on the base plate 12 and provided with a hole running horizontally, but perpendicular to the guide spindle 14. Rotatabl'y arranged in this hole is a bush 36 through which runs a horizontal pin 37, which is eccentric to the axis of its outerface. The bushing 36 is provided at its forward end with an integral operating lever 46.

the lever a ratchet wheel 39 is fixed and is engaged by a pawl 40 which is arranged rotatably about the pin 41 at the back face of the ratchet lever and is kept in engagement by a spring 42.

At the front end of the pin 37, a tightening roller 43 is fixed and is' provided at its surface with grooves or serrations running axially.

When the device is to be used, the end 9 of the binding hoop, after mounting the fastening de-.

vice on the package and swinging up the carriage plate 5 by means of the crank handle 18, is placed in the upright position, between the shearing rocker 22 and the front part of the bottom blade 27, and in such a position that the free end 9 of this hoop end, at a certain distancefrom the right-hand rest position of the two pinions 1, 2 over the base plate 12, is carried by a supporting block 45 at a certain height above this base plate. Further the band is passed between the tension roller 43 and the lug 44 of the clamping device. After passing round the package, the end 8 of the band is led over the other end 9 of this band, between the bottom blade 27 and the top blade 31 of the shearing mechanism and then, resting directly on the bottom band portion 9, under the tension roller' 43. In order to permit the insertion of the hoop in the clamping device, it is first necessary, by throwing the clamping lever 46 to the left, so to set the eccentric bush 36 associated with it, that the pin 37 with the tension roller 43 is sufficiently withdrawn from the supporting face of the lug 44. By suitably turning this eccentric bush, which for instance can be brought about by turning 'the clamping lever 46 to the right by hand, the peripheral surface of the tension roller 43 is depressed onto the top band end 8 and thereby clamped together with the bottom band end against the bottom lug 44. When the ratchet lever 38 is thrown to the right, then due to the action of the pawl 40 on the ratchet wheel 39,

the tension roller 43 is rotated in step in clockwise direction taking the top band end 8 to the left with its toothed periphery, whilst the bottom band-end is fixed in its position by the teeth of the stationary lug 44. Due to the movement of the ratchet lever 38, the band binding may be tightened round the package to the desired extent.

In order to facilitate the operation of the clamping device, the ratchet lever 38 is provided with a forwardly directed driving pin 4'7, which "is so arranged that, near the front limit of travel of the ratchet lever with the tension roller raised, it strikes against a projection 48 provided on the flat boss of the clamping lever. During the continuance of this movement it carries the driving pin along until, due to the above-mentioned rotation of the eccentric bush 36, it forces the tightening roller 43 downwards into the clamping position permitting the above described tightening operation. At its base at 49, the clamping lever 46 has a bent portion which is so shaped that the end of the pin 47 during the return movement, can freely pass on this clamping lever, in order to prevent the unintentional release of the clamping device during the execution of the tightening movement by means of the tension lever.

When, after the tightening of the hoop binding by means of the crank handle 38, the carriage plate 5 is swung down forwards, the two pinions 1, 2 pass with their oppositely facing peripheral excisions or insertion openings 7 beyond the two band portions 8 and 9 supported by the block and rest with their front ends on the surface of the base plate, so that the hoop portions 8 and 9 find themselves in the middle of the recesses 6 of these pinion tools.

Now if the crank handle 18 is rotated in clockwise direction, the toothed wheel 15 and the pnion 1 are rotated in opposite directions whilst the pinion 2 is taken round in the same direction of rotation as the crank. Thus as previously described, the two bands are first'folded together in the longitudinal direction and then intimately joined together by mutually alternating impressions as will be seen from Figs. 12 and 13. Due to the rolling movement of the pinion tools 1, 2 on the band portions secured by the binding, the

' tool carriage is pushed to the left against the tenfromFigs. 12 and 13.

sion of the spring 21 on the guide spindle 14. The lug 19 then slides over the surface of the guide block 20 and prevents the carriage plate 5 with the pinion tools from being swung out of their working position when in this intermediate position. At the bottom of the toothed wheel 15 at a suitable place, there is fixed a pin or nib 50 which,

after an appropriate forward movement of thecarriage 5 and a corresponding rotation of the toothed wheel 15, presses against the angle arm 32 of the top blade 31 and so moves this blade downwards so that it just passes over the cutting edge .of the bottom blade 27 and thus cuts off the protruding end of the top band portion 8.

Shortly after this operation, during the further advance of the carriage plate 5, a striking arm 52 secured to the latter hits against the shearing rocker, so that after the pin or nib has passed by the top end of the cranked lever 32, the rocker is swung out to the left about its pivot 23 against the action of the spring 25. The arrangement is so made, that the two operative pinions 1, 2 before completing a whole revolution from the starting position, can pass somewhat beyond the shearing position by virtue of this deflection of the shearing device, so that the folding action of the two pinions continues somewhat beyond the sheared edge 53 of the top metal band '8, as will be seen This prevents the protruding of the top band beyond the joint and eliminates the danger of injury being done to the hand. In the case of the bottom band end 54, this danger is eliminated by it being covered by the upper band 8 of the joint.

situated above it. When a Whole revolution of the two pinions has been completed, the two gaps 7 of same pass into the starting mutually opposite position. Thus the pinions lose their hold on the corrugated fiat portion of the joint, so thatthe carriage plate together with the parts thereon is pushed back again by the spring 21into the starting position at the right hand side.

In order to fix the parts in the proper place in this starting position and also to secure the crank handle 18 in a forward position so that it can serve as a handle for pivoting the carriage plate, there is provided a suitable catch mechanism which, in this position of the crank offers a certain resistance forwards and backwards. For

this purpose a catch 55 is arranged longitudinally forwards, the sharp end of this nib snaps into the notch of the catch 55 and secures the rotatable parts in this position with a certain resistance. By swinging over the carriage plate 5 by means of the hand lever 18, the band joint can be released, so that after the releasing of the band clamp-brought about by throwing over the clamping lever 46the forward parts lying under the binding band are withdrawn and the device can be freed from the finished joint. In order to facilitate the manipulating of the device it isprovided with an upwardly directed, preferably spherical handle at the end of a rear projection on the base plate.

The embodiment of the device shown in Figs. 14 and 15 difiers in its operations from that of the lut device shown in Figs. 5-11 chiefly by the fact that the longitudinal movement of the two pinion tools at the joint of the band ends, instead of taking place through the rolling motion of these tools on the band parts, is brought about by positive means. For this purpose an idler gear wheel 59 is arranged on the underside of the carriage plate behind the pinion l on the axis of the gear wheel 15, and rotates about a pin 58 secured to this carriage plate 5. This idler wheel 59 meshes on one side with the pinion 1 and on the other side with a rack 60, which is secured to the base plate.

As will easily be seen, due to the action of this intermediate wheel on the rack during the rota,- tion of the crank handle 18, the carriage plate 5, and hence the pinion tools. borne'by it, is given a forward movement to the left, so that the rolling action of the working face of the pinions on the band sections in .between, is brought about positively. The crank handle 18 is, as has already been fully described, arranged to drive the shaft 3'through the gears 16 and 15.

I claim:

1. In a device for connecting the overlapping ends of package bindings formed of metal bands, in combination with means for securing and tightening the band ends, a crank handle, two rolling tools arranged adjacent each other with parallel axes, oppositely rotatable by means of the crank handle and having protrusions and cavities ontheir peripheries adapted to longitudinally fold and clench the metal bands.

2. In a device for connecting the overlapping ends of package bindings formed of metal'bands,

in combination with means for securing and tightening the band ends, a crank handle, two rolling tools arranged adjacent each other with parallel axes and driven in opposite directions by means of the crank handle, said tools each being provided with'a peripheral groove or channel and provided at an appropriate peripheral place with an excision greater than the half width of the band, the remaining portion of its circumference having projections and cavities.

3. In a device for connecting the overlapping ends of package bindings formed of metal bands,

' in combination with a base plate, means on the base plate for securing and tightening the ends of a band, a guide spindle supported from the base plate and extending parallel to said base plate, a carriage mounted on the spindle to swing and slide thereon, a pair of coacting toothed rolling tools having shafts extending through the carriage, said tools being located beneath said carriage, gearing on the upper side of the carriage operatively connected tosaid shafts, and a crank operating saidgearing.

4. In a device for connecting the overlapping ends of package bindings formed of metal bands, in combination with means for securing and tighteningthe band ends, a crank handle, two rolling tools arranged adjacent each other with parallel axes and driven in opposite directions by means of the crank handle, the said rolling tools having meshing teeth on their circumferences after the manner of pinions and being provided at appropriate peripheral points, over a portion of their circumferential length, with excisions exceeding the half-width of the binding bands, and with a channel adjoining said excisions, said channel extending around the remaining circumference of each pinion and forming gaps in the teeth of each pinion.

5. In a device for connecting the overlapping ends of package bindings formed of metal bands in combination with a base plate, means on the plate for securing and clamping a pair of overlapping band ends, a pair of coacting crimping rollers supported from said base in spaced relation to the clamping means, crank actuated gearing operatively connected to the rollers to rotate the rollers in opposite directions, and a band end cutting device carried by the base plate between the clamping means and said rollers.

6. In a device for .connecting the overlapping ends of package bindings formed of metal bands in combination with a base plate, means on said base plate for securing and clamping a pair of overlapping band ends, a carriage plate mounted on the base plate for swinging movement toward.

and from the base plate and for movements toward and from the clamping means, a pair of coacting crimping rollers rotatably supported by the carriage plate, crank actuated gearing operatively connected to the crimping rollers to rotate said rollers in opposite directions, and a cutter supported by said base plate between said clamping device and said rollers, said cutters including a flat blade adapted for insertion between the clamped pair of band ends.

7. In a device for connecting the overlapping ends of package bindings in conjunction with means for longitudinally folding and clenching the overlapping ends by means of a pair of rolling tools, a base plate, a bearing boss mounted on said base plate, an eccentric bushing journaled in said boss and having an operating lever at one end, a spindle journaled in said bushing, a ratchet wheel fixed on said spindle, a lever rockingly mounted on said spindle and carrying a pawl engaging the ratchet wheel, and a tension roller fixed on said spindle and having a roughened surface, said base plate having a roughened surface located beneath the tension roller.

8. In a device for connecting the overlapping ends of package bindings formed of metal bands, in combination with means for longitudinally folding and clenching said overlapping ends 'by means of a pair of rolling tools, an eccentric bush, a spindle journaled in said bush, a tension roller mounted on said spindle and having a roughened edge, a ratchet lever rotatable on the tension roller spindle, a driving pin on this ratchet lever, a projection on the eccentric bush situated within the sphere of rotational! this pin and a hand lever on this eccentric bush adapted to release the clamping of the two overlapping band ends.

9. In a device for connecting the overlapping ends of package bindings formed of metal bands, in combination with a base plate, means supported on the base plate for securing and tightening the band ends, acarriage plate, means on the base plate supporting the carriage plate for swinging movement to and from the base plate and for movement longitudinally of the base plate, a pair of rolling tools rotatably mounted on the base plate, a crank connected to one of said tools for rotating the tool, gears connecting said tools, a pin projecting from one of said gears, a shearing device mounted on the base plate to embrace and sever one of said band ends, said shearing device consisting of a relatively fixed and a relatively movable blade, and an actuating arm projecting from the movable blade into thepath of said pin whereby rotation of the.

pin provided gear effects cutting movement of the movable blade. v 10'. In a device for connecting the ends of package bindings formed of metal bands,

in combination with a base plate for securing and overlapping shearing device consisting a relatively fixed and a relatively movable blade, an actuating arm projecting from the movable blade into the path of said pin whereby rotation of the pin provided gear efiects cutting movement of the .movable blade, means connecting said shearing device to the base for lateral swinging movement, a spring urging the iree end or the shearing device towards the carriage, and an actuating member carried by the. carriage and engaging the free end of the shearing device to move it against the action or said spring upon movement 01' the carriage along the base in one direction.

11. In a device for connecting the overlapping ends or package bindings formed of metal bands, in combination a base plate, means on the base plate for securing and tightening the ends of a band, a guide spindle supported from the base plate and extending parallel to said base plate, a carriage mounted on the spindle to swing and slide thereon, a pair of coacting toothed rolling tools having shafts supported by the carriage, said tools being located beneath the said carriage, gearing on the upper side of the carriage operatively connected'to said shafts, a crank operating said gearing, a rack fixed to said base plate parallel to the guide spindle, and an idler gear supported on said carriage and meshing with one or the toothed rollers and with said rack.

JOHANN BEAUVISAGE.

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