US3134490A - Apparatus for assembling and accumulating fillers - Google Patents

Description

E. E. OLSON May 26, 1964 4 Sheets-Sheet 1 Filed Oct. 1, 1962 J! R j 0 5 9 7 1 a Q 1% d r w 7, M w I L .FLF .L fl 4 5 J E A 6 I J 3 x J w q! 25 1 GM 5 5 G T 6 F4 w F A Z 7 x A. My a m a 3 L flaw/ 2 5 w m L. 1 g; 4 F 9 1 0 1 6 H w AN 1 4 fl ATT y 26, 1954 E. E. OLSON 3,134,490

APPARATUS FGR ASSENEBLING AND ACCUMULATING FILLERS 4 Sheets-Sheet 2 Filed Oct. 1, 1962 g] 5 fi 1 70 x l n K W I g k f3. 75 x 77 79 6' 75 94 g p 55 117 i/a V 55 142- 50 l GP Q I r 1 J az Lyzz 145 157 J4 14 5 INVENTOR [L MFR 13 0150 BY ngk ATTORNEY y 1964 E. E OLSON 3,134,490

APPARATUS FOR ASSEMBLING AND ACCUMULATING FILLERS Filed Oct. 1, 1962 4 Sheets-Sheet 4 INVENTOR LMER f. Ozsozv ATTORNEY United States Patent 3,134,410 AFFARATUS FGR ASSERBLENG AND ACQUMULAT G FILLERS Elmer E. @lson, Ru binsdale, Minn, assignor to Minnesota Filler Company, Minneapolis, Minn, a corporation of Minnesota Filed Get. 1, 1962, Ser. No. 227,511 Claims. (Cl. 2147) This invention relates to an improvement in apparatus for assembling and accumulating fillers of the type normally employed to divide an area into a multiplicity of individual cells.

Fillers are commonly employed for dividing a rectangular area into a plurality of individual cells, each designed to contain an article. For example, egg cases are usually provided with fillers which include intersect ng strips of paperboard designed to divide a number of cells, each of which is suitable for containing an egg. These fillers are usually produced on automatic machines which attach the intersecting strips in intersecting relation to provide a generally rectangular cellular structure. When fillers of this type are produced for sale, the fillers are usually collapsed by folding the intersecting strips of paperboard into substantial face contact and a predetermined number of these flattened fillers are tied or otherwise attached to gether and placed in a suitable shipping container. This operation requires the collapsing of the fillers from their rectangular outline form to a generally flat form, and counting out the required numbers of the flattened fillers before the bundling operation. Di ficulty is caused if the proper number of fillers are not bundled together, as the number of fillers in a bundle is usually the number of fillers required in an egg case containing thirty dozen eggs, or in a multiple of this number. Furt errnore, as the fillers are formed at a relatively high rate of speed, considerable labor is required to flatten the individual fillers, to accumulate a predetermined number of flattened fillers, and then to bundle the fillers.

An object of the present invention resides in the provision of a simple and effective apparatus for automatically folding the fillers from their rectangular outline shape to flat form, and for automatically accumulating a predetermined number of the flattened fillers. As a result, a single operator can take each bunch of accumulated fillers, tie this group of fillers into a bundle, and place the fillers in a container while the next group of fillers are being flattened and accumulated, thus materially reducing the labor necessary to accomplish the desired result.

A feature of the present invention resides in the provision of a conveyor which conveys the formed fillers in their normal rectangular form against a transversely extending conveyor which engages one end of the filler structure. The lateral movement of this transverse conveyor acts to move one end of the filler structure laterally relative to the other end, thus starting the collapsin operation of the conveyor. 'As the filler collapses, it is guided between spaced rollers which complete the collapse of the filler from rectangular form into substantially fiat form.

A further feature of the present invention resides in the provision of plunger means for individually moving each collapsed filler into an accumulator which accumulates a predetermined number of the fillers. When the desired number has been accumulated, means are provided for moving the accumulated fillers in a group to bundling position, where the accumulated group of fillers may be tied or otherwise secured together and placed in a suitable conveyor.

A further feature of the present invention resides in the provision of a novel and effective means of holding the 3,134,490 Patented May 26, 1964 collapsed fillers in upright position as they are accumulated. The fillers are forced along a suitable platform and between the platform and a frictional support which engages the upper surfaces of the fillers to hold them normally in an upright position.

A further feature of the present invention resides in the provision of a means for sequentially operating the various parts of the apparatus to produce the des red result.

These and other objects and novel features of the present invention will be more clearly and fully set forth in the following specification and claims.

In the drawings forming a part of the specification:

FIGURE 1 is a top plan view of the apparatus showing the general arrangement of parts therein.

FlGURE 2 is a sectional view through a portion of the apparatus, the position of the section being indicated by the line 22 of FIGURE 1.

FEGURE 3 is an elevational View of the apparatus for discharging the collapsed fillers when a predetermined number of fillers has been accumulated.

FIGURE 4 is a diagrammatic side elevational view of a portion of the apparatus in one position of operation.

FIGURE 5 is a view similar to FIGURE 2 showing the parts in a difierent position of operation.

FIGURE 6 is a side elevational view of the major portion of the apparatus.

FIGURE 7 is an elevation view of the infeed end of the apparatus, showing the arrangement of parts therein.

FIGURE 8 is a diagrammatic view of the electrical Wiring and pneumatic connections of the apparatus.

As is indicated in FIGURE 6 of the drawings, the apparatus A normally comprises a portable unit including a base frame 19 supported at one end by spaced parallel wheels ll (see also FIGURE 1) and at the other end by adjustment screws 12 having bearing plates 13 at the lower ends thereof. The adjustment screws 12 provide a means of leveling the apparatus in use.

Uprights such as 14 secured to the base frame 1!) act to support a subframe assembly 15 generally parallel to the base frame 1%. At one side of the frame, a pair of angle members 16 project in spaced parallel relation toward the outlet of the filler forming apparatus, not illustrated in the drawings. Braces 17 assist in holding the angle member 1% in proper relation.

A'pair of parallel conveyor drums 19 and 20 are supported by the arms 16 through the use of bearings 21 supported in spaced relation by the arms 16. The drums l9 and 2% include supporting shafts 22 and 23 respectively which are supported in the bearings 21. A conveyor belt 24 is supported between the drums 19 and 20, the belt 24- being adjacent to the discharge of the filler forming machine to receive fillers formed thereby.

A drive motor 25 is mounted upon the frame of the apparatus and includes a ve tical drive shaft 26. A pulley upon the drive shaft 26 is connected by the belt 27 to the shaft 29 of a gear box 39. The driven shaft 31 of the gear box 3% supports a sprocket 32 or a pulley which is connected to a cooperable sprocket or pulley 33 on the shaft 22 by a chain or belt 34. In this way, the motor 25 drives the conveyor belt 24.

A table or dead plate 35 is supponed by the frame of the appmatus at the delivery end of the conveyor belt 24. A pair of vertical shafts 36 and 37 are supported in suitable bearings 39 to the frame of the apparatus, as indicated in FIGURE 7 of the drawings. A pulley 44? is supported upon the shaft 37 and is connected to the motor drive shaft 27 by means of a belt 41 which encircles a suitable pulley 42 on the drive shaft. Vertically spaced pulleys are mounted upon the vertical shaft 37, and similar vertically spaced pulleys 4d are mounted upon the shaft 36. Belts 45 connect the pulleys 43 and the pulleys Q4. The belts 45 are above the level of the dead plate 35 and are in the path of movement of the fillers B which are forced over the dead plate by the belt 24. 7

An arcuate guide 46 overlies the dead plate 35, and along one side of the conveyor belt 24. The ends of the guide 46 are curved toward the periphery of the pulleys 44. Idler pulley 47 is pivotally supported at 49 to a pair of arms 50 pivotally supported to the frame at 51. A spring 52 connects the arms 50 with a fixed point on the frame, the spring tending to urge the idle roller 47 toward the pulleys 44. A fixed guide 53 is provided on the apparatus frame which is substantially aligned with one reach of the belts 45, but is offset slightly therefrom.

The apparatus described comprises the means for collapsing the fillers B from the rectangular form in which they are made to a substantially flat form in which the intersecting paper strips are in face contact. The fillers B are deposited upon the conveyor belt 24 from the outlet of the filler forming machine, which is not shown in the drawings. The belt 24 drives the fillers B across the dead plate 35 until the leading edges of the fillers engage the belts 45. Movement of the belts 45 causes the leading edge of the fillers to be moved to the left as viewed in FIGURE 1 of the drawings. The guide 46 prevents the entire filler from being moved laterally, and guides the leading edge of the filler between the pulleys 44 and the idle pulley 47. The filler is then engaged between the pulleys and the roller and are forced laterally over the end edge 54 of the dead plate 33 and against the guide 53.

i As indicated in FIGURES 2 and 6 of the drawings, a pair of angular arms 56 each having generally vertically extending arm portions 57 and generally horizontally extending portions 59 are pivotally connected to the apparatus frame 14 by a transverse pivot shaft 60. As shown in FIGURE 5, one of the arms 56 is provided with an angularly extending extension 61 which is attached to the arm portion 57, and which pivots with the arm 56. A spring 62 connects the end of the arm 61 to the apparatus frame and acts to bias the arms 56 toward the position indicated in FIGURE 5. The horizontal end 59 of each arm 56 supports a vertical pivot 63 which supports a roller 64. As indicated in FIGURE 1 of the drawings, the rollers 64 are supported forwardly of the guide 63 forming a channel therebetween for accommodation of the collapsed fillers B.

A pair of spaced parallel angle members 66 are supported by the frame 14 at right angular relation to the guide 53. As may be seen in FIGURE 2 of the drawings, these angle members 66 support parallel rails 67 which are designed to support the collapsed fillers B on opposite sides of the center line thereof. A pusher plate 69 is recessed into the guide 53 and is slidable over the rails 67. A pneumatic cylinder 70 is supported on the frame of the apparatus extending with its axis normal to the surface of the pusher plate. A piston rod 71 connects the pusher plate 69 to a piston within the cylinder 70. Upon actuation of the piston within the cylinder 70, the pusher plate operates to force a collapsed filler B from its position between the guide 53 and the roller 64 and an accumulating position shown by the dotted outline 72 in FIGURE 1 of the drawings. During the advancement of the pusher plate 69, the roller supporting arms 56 are pivoted out of the path of the fillers. However, the rollers 64 tend to hold the collapsed fillers in an upright position during the initial movement of the pressure plate.

A pair of parallel spaced arms 73 are attached to one upright frame member 14 and extend in cantilever arrangement-above the rails 69. The'under surfaces of the arms 73 are preferably provided with a yieldable cushioning material 74 which may frictionally engage the upper surfaces of the collapsed fillers B. The rails 69 may also comprise, or be equipped with a cushioning means for frictionally engaging the lower edges of the collapsed fillers. As an example, foam rubber may be employed, and

brush bristles have also been very successfully employed, the free ends of the bristles extending in opposed relation above and below the fillers. The purpose of this arrangement is to hold the fillers in an upright position as they are accumulated.

A means is provided for moving a predetermined number of collapsed fillers from accumulating position to discylinder 75 is pivoted through the operation of a gen- I erally vertical cylinder which is pivotally connected at its lower end as indicated at 81 to a portion of the frame of the apparatus and which is provided with a piston rod 82 pivotally connected at 83 to a bracket 84 secured to the end of the cylinder 75. In raised position of the piston, the cylinder 75 is elevated to the position shown in FIGURE 4. When the piston in the cylinder 80 is lowcred, a cylinder 75 assumes the position shown in FIG- URE 5.

The piston rod 77 is normally in its extended position which is illustrated in FIGURES 1 and 5 of the drawings; When in this position, the pusher plate 79 is rearwardly of the accumulator position 72, shown in dotted outlines in FIGURE 1. The cylinder 75 remains in this position during the accumulation of a predetermined number of collapsed fillers B in this accumulating position. However, when the proper number. of fillers are accumulated, the cylinder 80 is actuated, raising the piston rod 82 and tilting the cylinder 75 into the position shown in FIGURE 4. Means is then provided for actuating the cylinder 75 to retract the piston rod 79, the action causing the pusher plate 79 to move the accumulated fillers into the discharge position shown in FIGURE 5. A pair of rollers 85 are pivotally connected to the ends of arms 86 which are pivoted at 87 to the arms 73. The movement of the collapsed fillers by the pusher plate 79 swings the arms 86 in a clockwise direction as viewed in FIGURES 4 and 5, the rollers 85 rolling over the upper edges of the fillers and dropping down rearwardly of the group of fillers as indicated in FIGURE 5 as the fillers reach discharge position. Carriages 89 are supported by rollers 90 from movement longitudinally of the angle members 66 and these carriages 89 support a transverse angular abutment 91 against which the fillers engage during their movement from the accumulating position to discharge position. The carriages 89 are preferably returned to starting position when the fillers B had been manually removed from discharge position by the flexible tape 92 which is supported upon'a spring urged reel 93, as shown in FIGURE 5.

The mechanism for controlling the discharge from the accumulator is illustrated in FIGURE 3 of the drawings. A bracket 96 extends rearwardly from one of the frame members 14 and supports a pivot 97 rotatably supporting the ratchet wheel 99. The pivot 97 also pivotally supports an arm 100 to which a ratchet dog 101 is pivoted. A push rod 102 is pivotally connected to the arm 100 at 103 and slides through a loose bearing 104 on the frame member 14. The pusher plate 69 is provided with a downwardly projecting tongue 105 which engages the push rod 102 when the pusher plate moves into retracted position. A spring 106 is connected to the arm 100 and to the frame and tends to pivot the arm 100 in a counterclockwise direction when the pusher plate 69 is projected. As a result of this arrangement, each time the pusher plate 69 is projected to urge a flattened filler into accumulating An elongated '3 position, the return of the pusher plate acts to advance the ratchet wheel one notch by means of the dog 161.

A limit switch M7 is mounted upon the frame and is provided with a pivoted arm 189 having a cam projection 1143 thereupon which is engaged by a projection 111 on the ratchet wheel 99. Thus as the ratchet wheel coinpletes each cycle of operation, the micro switch 1427 is actuated to operate the cylinder 89.

A micro switch 112 is also mounted upon the frame and is actuated by an arm 113 connected to the cylinder 89. As the piston rod 82 of the cylinder 89 moves toward projected position, the cylinder 39 tilts to a limited extent and the arm 113 operates the micro switch 112. The manner in which the arm 113 engages the switch 12 is shown in FIGURE 4 of the drawings.

A micro switch 114 is supported at the outer end of the guide 53 and includes an operating arm 115 which is in the path of the end of the collapsed filler as it is moved forwardly of the pusher plate 69 An additional micro switch 116 is mounted upon the frame as shown in FIGURE 5, and is actuated by a pin or projection 117 on one of the arms 56 when the arms as are in normal position as shown in FIGURE 6.

With reference now to FIGURE 8 of the drawings, the motor is connected to the line wires 12% and 121 through a control switch 122 to drive the conveyor belt 24 and the transfer belt 45 continuously during the operation of the apparatus. The line wire 121 is connected through a main control switch 123 to a conductor 124 leading to one terminal of the switch 114. The other terminal of the switch 114 is connected by a conductor 125 to one terminal of a valve solenoid 125, the other terminal of which is connected by a conductor 127 to the line wire 12%.

The conductor 124 is also connected to one terminal of the switch 116, the other terminal of which is connected by a conductor 129 to the valve solenoid 126, which, as was stated, has its other terminal connected to the line wire 12!).

The conductor 124 is also connected by a conductor 13%] to one terminal of the switch 197, the other terminal of which is connected by conductor 131 to the valve solenoid 132. The other terminal of the solenoid 132 is connected by a conductor 133 to the line wire 12% to complete the circuit.

The conductor 124 is also connected to one terminal of the switch 112, the other terminal of which is connected by a conductor 13- to the valve solenoid 135, the other terminal of which is connected by conductor 136 to the line wire 12%.

The valve solenoid 126 operates a four-way valve 137 which controls the flow of air from the compressor 139 through the conduits 14-3 and 1 5?. to the cylinder, ill.

The valve solenoid 132 controls the flow of fluid from the compressor 139 through the line 149 to the threeway valve 142 which controls the flow of fluid to the cylinder 8% The valve solenoid 135 controls a four-way valve 143 which controls the flow of fluid through the line 144 to the cylinder 75.

In operation, the switch 122 is closed to start the conveyor belt 24 and transfer belts 45 and the main switch 125 is controlled through the air circuit. A filler is formed by the forming apparatus and deposited upon the conveyor belt 24. This belt urges the filler against the transfer belts 45 which operate in the manner previously described to flatten the filler and move it laterally to a position forwardly of the pusher plate 69. At this point, the end of the collapsed filler strikes the operating arm 115 of the switch 114 which closes the circuit from the line wire 121 through the switch 114 and conductor 125 to the valve solenoid 126. Operation of the solenoid 126 shifts the valve 137 and starts reciprocation of the piston rod 71 bearing the pusher plate 69.

As the flattened filler is moved toward accumulating position, the arms 56 are pivoted, disengaging the projection 117 from the normally open switch 116 enclosing this switch. This operation closes an alternate circuit through conductor 129 to the valve solenoid 126 and maintains the valve solenoid in position to complete the outward reciprocation of the pusher plate 69; Obviously, as soon as the end of the filler is disengaged from the switch arm 115, the switch 114 is opened and the alternate circuit is required to complete the reciprocation. At the end of the reciprocation, the piston in the cylinder 116 automatically returns to starting position, restoring the circuit to its original form.

Reciprocation of the piston within the cylinder 70 continues until a suficient number of fillers are accumulated. At this point, the ratchet wheel 99 closes the switch 107, closing a circuit from the conductor 124 through the conclusters 13% and 131 as well as through the switch 107 to the valve solenoid 132, the other terminal of which is connected to the line wire 12% through the conductor 133. Actuation of the solenoid 132 operates the valve 142 to ur e the piston in the cylinder hi5 upwardly. This action raises the pusher plate 7% upwardly rearwardly of the fillers.

As the cylinder 75 is swung upwardly, the cylinder tilts slightly, actuating the switch 112 enclosing the circuit from the conductor 124 through the switch 112 and the conductor 134 to the valve solenoid 135, the other terminal of which is connected to line Wire 1249' through the conductor 13 This operates the valve 143 to retract the piston rod 77 into the cylinder 75, the pusher plate 79 drawing the fillers from accumulated position to discharge position. As soon as the next filler is pushed into accu mulated position, the ratchet wheel 99 is rotated, opening the switch 167 and allowing the piston in the cylinder 84) to move downwardly, thus moving the cylinder 75 in the tilted position shown in FiGURE 3.

This operation opens the switch 12, opening the circuit to the solenoid and returning the valve 143 to its normal position, and urging the piston rod 77 and the pusher plate 79 toward projected position.

Due to the fact that the ends of the fillers in collapsed form project on opposite sides of the supporting rail, or the supporting angle members, it is possible for the operator to tie the ends of the bundle of accumulated and discharged fillers, and to place them in a suitable receptacle. Due to the fact that in collapsed form the center portion of the filler is substantially thicker than the end portions thereof, as the center portion includes more thicknesses of paperboard, the bundle of fillers has convex outer surfaces, permitting the ends of the bundles to be readily tied or banded together.

Thus it will be seen that much of the labor previously required to accomplish the filler packaging operation, the apparatus serves a very useful purpose. In the past, the rectangular fillers leaving the filler forming machines were usually manually flattened as they were formed. As the fillers usually leave the forming machine at regularly timed intervals, the task of flattening the fillers normally requires the full time of one operator. As a result, a second operator was required to tie or band the fillers. Either one or the other of the operators was required to count the fillers so that each bundle contained the same number. By automatically flattening and accumulating predetermined numbers of fillers, one of the two operators may be eliminated.

In accordance with the patent statutes, I have described the principles of construction and operation of my improvement in apparatus for assembling and accumulating fillers, and while I have endeavored to set forth the best embodiment thereof, I desire to have it understood that changes may be made within the scope of the following claims without departing from the spirit of my invention.

I claim:

1. A filler collapsing apparatus for use with fillers comprising intersecting strips of paperboard foldable from open right angular relation to closed collapsed relation, the apparatus including'means for moving the filler in open position, conveyor means in the path of movement of the open filler and movable in a direction at generally right angles to the direction of movement of said moving means, said conveyor means engaging the leading edge of said fillers and moving the same laterally, and means restraining the trailing edges of the fillers from lateral movement and guiding the fillers into (101-.

lapsed form.

2. The structure of claim 1 and in which said restraining means comprises a curved guide engaging the side of the fillerand extending toward said conveyormeans.

' 3. The structure of claim 1 and including a roller adjacent the outlet end of said conveyor means, said fillers in collapsed form moving between said roller and said conveyor means.

4. A filler accumulating means for use with fillers comprising intersecting strips of paperboard foldable from open'position with the intersecting strips in right angular relation to collapsed position with said intersecting strips in substantially face contact, means for moving said open'fillers in a direction parallel to certain of said strips, a conveyor mounted in the path of movement of the leading edge of said fillers and in a direction substantially parallel to the others of said strips, said conveyor being engageable with the leading edges of said certain strips to move these leading edges laterally of the first direction of movement, means engageable with an edge of said remaining strips to guide said filler to collapsed form, and plunger means engageable with said collapsedfillers to move said collapsed fillers in a direction generally parallel to the direction of movement of said filler moving means into side by side relation in face contact. I

5. The structure of claim 4 and including means frictionally engaging said fillers to hold them' in generally parallel face contact.

6. The structure of claim 4 and in which said fillers are supported with said strips in substantially vertical planes throughout said movements.

7. A filler accumulating means for use with fillers comprising intersecting strips of paperboard foldable from open position with the intersecting strips in right angular relation to collapsed position with said intersecting strips in substantially face contact, means for moving said open fillers in a direction parallel tocertain of said strips, said moving means supporting said strips with the surfaces of said strips in substantially vertical planes, a conveyor in the path of movement of said fillers and engageable with the leading edges of said certain strips, said conveyor being movable in a direction generally parallel to the remaining strips of said fillers, guide means engageable wtih the end edges of certain of said remaining strips to guide said filler to said collapsed position as the leading edges of said certain strips are moved laterally, and means engageable with each said flattened filler to move the same in a direction generally parallel to the direction of movement ofsaid moving means.

8. The structure of claim 7 and including means frictionally engaging the upper and lower edges of said collapsed fillers upon movement of said means engageable therewith to hold said collapsed fillers with said strips in generally vertical planes.

9. The structure of claim 7 and including means hold-' ing said collapsed fillers in contacting side by side relation, and means operable to move a plurality of side by side collapsed fillers into discharge position simultaneously.

10. The structure of claim 7 and including control means operable upon movement of each collapsed filler to a predetermined position to actuate said engageable means. i

11. A filler accumulating means for use with fillers comprising intersecting strips of paperboard foldable from open position with the intersecting strips in right angular relation to collapsed position with said intersecting strips in substantially face contact, means for moving said open fillers in a direction parallel to certain of said strips, said moving means supporting said strips withthe surfaces of said strips in substantially vertical planes, a conveyor in the path of movement of said fillers and engageable withthe leading edges of said certain strips, said conveyor being movable in a direction generally parallel to the remaining strips of said fillers, guide means engageable With the end edges of certain of said remaining strips to guide said filler to said collapsed position as the leading edges of said certain strips are moved laterally, and plunger means engageable with each flattened filler and movable in a direction substantially normal to the flattened filler, and means for supporting said fillers moved by said plunger in substantially face contact.

12. The structure of claim 11 and including control means actuated by movement of each flattened filler adjacent said plunger to reciprocate said plunger.

13. The structure of claim 11 and including discharge means engageable with said flattened fillers in said supporting means and operable to simultaneously move the same from said supporting means.

14. The structure of claim 11 and including a second plunger means operable to simultaneously remove a plurality of flattened fillers from said supporting means.

15. The structure of claim 14 and including control means operable upon reciprocation of said first named plunger means to actuate said second plunger means.

References Cited in the file of this patent UNITED STATES PATENTS 2,381,620 Russell Aug. 7, 1945 2,660,949 Russell Dec. 1, 1953 2,671,385 Johenning et al. Mar. 9, 1954

Claims (1)

1. A FILLER COLLAPSING APPARATUS FOR USE WITH FILLERS COMPRISING INTERSECTING STRIPS OF PAPERBOARD FOLDABLE FROM OPEN RIGHT ANGULAR RELATION TO CLOSED COLLAPSED RELATION, THE APPARATUS INCLUDING MEANS FOR MOVING THE FILLER IN OPEN POSITION, CONVEYOR MEANS IN THE PATH OF MOVEMENT OF THE OPEN FILLER AND MOVABLE IN A DIRECTION AT GENERALLY RIGHT ANGLES TO THE DIRECTION OF MOVEMENT OF SAID MOVING MEANS, SAID CONVEYOR MEANS ENGAGING THE LEADING EDGE OF SAID FILLERS AND MOVING THE SAME LATERALLY, AND MEANS RESTRAINING THE TRAILING EDGES OF THE FILLERS

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