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Publication numberUS3100089 A
Publication typeGrant
Publication dateAug 6, 1963
Filing dateFeb 12, 1962
Priority dateFeb 12, 1962
Publication numberUS 3100089 A, US 3100089A, US-A-3100089, US3100089 A, US3100089A
InventorsNorrholm Paul H
Original AssigneeNorrholm Paul H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Winding apparatus and tensioning means therefor
US 3100089 A
Abstract  available in
Images(4)
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Claims  available in
Description  (OCR text may contain errors)

Aug. 6, 1963 P. H. NORRHOLM WINDING APPARATUS AND TENSIONING MEANS THEREFOR 4 Sheets-Sheet 1 Filed Feb. 12, 1962 FIG.

6, 1963 P. H. NORRHOLM 3,100,089

WINDING APPARATUS AND TENSIONING MEANS THEREFOR Filed Feb. 12, 1962 4 Sheets-Sheet 2 I NVEN TOR. P4114 d WORK/904M BY M0 WINDING APPARATUS AND TENSIONING MEANS THEREFOR 4 Sheets-Sheet 3 Filed Feb. 12, 1962 6, 1963 P. H. NORRHOLM 3,100,089

WINDING APPARATUS AND TENSIONING MEANS THEREFOR Filed Feb. 12, 1962 4 Sheets-Sheet 4- FIG. 4

74 l i 50 8/ ii 62 INVENTOR.

BY M

3,100,089 WlNDlNG APPARATUS AND TENSIONING MEANS THEREFOR Paul H. Norrholm, 91 Midland Blvd., Lake Ronkonkoma, N.Y. Filed Feb. 12, 1962, Ser. No. 172,473 6 Claims. (Cl. 2426) This invention relates to a winding apparatus and more particularly to a winding apparatus for applying a covering to coils and the like.

An object of the invention is to provide a winding apparatus with a tensioning device by means of which a covering in the form of a strip of material is tightly wound on the coil with the convolutions thereof disposed in equally arranged relation.

Another object of the invention is to provide a winding apparatus for continuously winding a strip of material in covering relation on a coil from a rotatably mounted shuttle on which the strip of material is arranged in folded back and forth manner and with the coil mounted for movement in timed relation with the movement of the shuttle and through which the shuttle moves with the rotation thereof. Another object of the invention is to provide a winding apparatus of said character in which the tensioning device maintains a tension on the strip as the same is fed from the shuttle and wound onto the coil.

Still another object of the invention is to provide a tensioning device which alternately engages and releases the strip as the same is unwound from the shuttle.

Still another object of the invention is to provide a winding apparatus with a rotatably mounted tensioning device having pivotally mounted pins biased for movement into the path of travel of the strip as the same is unwound from the shuttle with the rotation thereof for alternately disposing the strip in and out of engagement with the pins for tensioning the strip.

With the foregoing and other objects in view, reference is now made to the following specification and accompanying drawings in which the preferred embodiment of the invention is illustrated.

In the drawings:

FIG. 1 is a view in elevation of a winding apparatus constructed in accordance with the invention.

FIG. 2 is a rear view thereof.

FIG. 3 is a top plan view of the apparatus with the front thereof on the left.

FIG. 4 is an enlarged side view of the tensioning device.

FIG. 5 is an end view taken along the line 55 of FIG. 4.

FIG. 6 is a sectional view taken approximately along the line 6-6 of FIG. 4.

Referring to the drawings, the winding apparatus includes a shuttle 1! of annular formation which is mounted for rotation in clockwise direction as viewed in FIG. 1 of the drawings. The shuttle extends through the axial opening in a coil C and the like for applying a strip S of material in covering relation on the coil. The coil is tates Patent 0 mounted for rotation in a horizontal plane in synchronism with the movement of the shuttle so that a lap is applied 3,1fl0y089 Patented Aug. 6, 1963 "Ice retain the sectors in complete annular formation. strip S is wound upon the sector 11 with the ends of the folds thereof located adjacent the ends of said sector and with a slot '15 in the bottom wall thereof adjacent the hinged connection 13 through which the strip is drawn with the rotation of the shuttle.

The shuttle is supported by and mounted for turning movement between flanged rollers 17, 18, 19 and 20 about which an endless belt 21 is trained with the inner course of the belt disposed in frictional engagement with the flanges of the shuttle. The pulleys 17, 18 and 19 are a-djustably supported by a stand 22 aifixed in upright relation on a base 23 to provide the proper tension to the belt 21. The pulley 20 is affixed to a drive shaft 24 journaled for rotation in pillow blocks 25 and 26 mounted on the base 23. A drive pulley 27 is affixed to said drive shaft and over which drive pulley is trained an endless belt 28 operatively connected with drive means for turning the pulley 20' in counter-clockwise direction to thereby rotate the shuttle in clockwise direction as hereinbefore described. The pulleys 17 and 18 are rotatably mounted on stub shafts 29 and 30 carried by split blocks 31 and 32 respectively which are slidably and adj-ustably arranged on a horizontal bar 33. The said bar is adjustable horizon-tally in a split block 34 which block is adjustable vertically on the stand 22. The pulley 19 is mounted for turning movement on a stub shaft 35 carried by a split block 36 which is mounted for vertical adjustment on the stand 22.

The coil C is mounted for rotation between rollers 38, 39 and 40, the rollers 38 and 39 being freely rotatable on vertical shafts 42 and 4-3 respectively which are affixed in upright relation to flat bars '44 and- 45. The said bars are supported on a plate 46 aflixed to a supporting post 47 which is secured in upright relation on the forward portion of the base 23. The bars 44 and are slotted for adjustably receiving threaded studs 48 for tightening the bars in any desired adjusted position on the plate 46 to dispose the peripheries of the rollers 38 and 39 in engagement with the periphery of the coil. The roller 40 is affixed to the upper end of a vertical shaft 49 journaled for rotation in a swing arm 50 which is mounted for swinging movement on the post 47. The shaft 49 is operatively connected with driving means for imparting step by step turning movement to the coil in timed relation with the rotation of the shuttle 10.

The plate 46 is centrally recessed as at 52 and the coil is supported on the flanges 51 of the rollers 38 and 39 to dispose the coil above said recessed portion. This provides means by which the shuttle moves through the axial opening in the coil and through the recessed portion of the plate with the feeding of the strip S therefrom.

The coil C is advanced with each rotation of the shuttle to thereby apply a wrap or convolution about the coil with each wrap or convolution overlapping the previous wrap or convolution. For this purpose, the shaft 49' is operatively connected with the drive shaft 24 by means of pivotally mounted levers 53 and 54 having a pivotally mounted. slide and slot connection 55 with the levers 53 provided with a cam follower in the form of a wheel 56 journaled on the pin '57 and biased by a spring 58 into engagement with a cam wheel 59* mounted on the drive shaft 24. The lever 54 is pivotally mounted on a vertical pin 60 to an arm 61 swingably mounted on the shaft 49 and with a coil spring spring 62 surrounding said shaft Theto thereby effect arcuate swinging of the arm 61 to alternately tighten and loosen the spring 62 on the shaft 49. Thus, when the outer end of the lever 53 is swung in one direction, the lever 54 will be moved so as to tighten the spring 62 on the shaft i9 and thereby rotate the shaft 49 sufliciently to impart a step movement to the coil C. With the movement of the lever 53 in the opposite direction the lever 54 is swung so as to loosen the spring 62 on the shaft 49 for relative sliding movement therewith. The roller 40 is biased against the coil C by a coil spring 67 arranged on the post 47 and affixed at its ends to said post and the swing arm 50.

In order to maintain the strip S in tensioned relation as the same is wound about the coil C with the rotation of the shuttle, a tensioning device 70 is provided which is mounted :for rotation on a stub shaft 71 extending axially of the shuttle substantially at the center thereof. The stub shaft 71 is mounted on an angularly arranged bar 72 with the upper end of said bar adjustably secured on the stand 22 by means of a split block 73. The tensioning device includes a hub 74 which is rotatably mounted on the stub shaft 71 and has parallel arms 75 and 75' arranged for rotation with the hub in a vertical plane at one side of the plane of the shuttle. The arms are mounted in parallel openings in the hub on opposite sides of the stub shaft for limited turning movement and are provided with pins 77 which are pivotally mounted on the outer ends thereof on pivot pins 78- for movement of said pins from projecting relation laterally of the arms and in the path of movement of the strip S as the same is fed from the shuttle and to outwardly extending relation in prolongation of the arms respectively. The arms are biased to normally dispose the pins in said laterally projecting relation by coil springs 79 arranged on said arms and affixed at their inner ends to the hub and at their outer end to collars 80 mounted on said arms respectively. The arms and the hub are provided with stop lugs 81 and 82' to limit the turning of the arms with reference to said hub and to dispose the pins in said laterally projecting relation. The pins are biased into said laterally projecting relation by coil springs 83 which are affixed at their ends to the arms and pins respectively.

With each rotation of the shuttle one of the pins 77 is engaged by the strip S to form a loop L therein as shown in FIG. 1 of the drawings. The tensioning device is biased against too free turning movement by a coil spring 84 freely mounted on the stub shaft '71 between collars 85 and 86. The collar 85 is aifixed to the shaft 71 while the collar 86 is slidably mounted thereon and is keyed thereto by a pin 87 anchored in the shaft and extending freely into a slot 88in the collar 86 whereby the collar rotates with the shaft but is moveable longitudinally thereof toward and away from the hub 74 of the tensioning device. The spring 84 biases the collar 86 against the hub 74 and for this purpose the collar 86 has a large flat face which bears against a side face of the hub. Thus, as each loop L engages one of the pins 77 the tensioning device is rotated in a clockwise direction. When the tension on the loop L exceeds the tension of the spring 84, the loop L will rotate the arm with reference to the hub against the bias of the spring 79 and the pin 77 will be turned in prolongation of the arm against the bias of its spring 83 to thereby free the loop from the pin. This takes place when the pin is moved into adjacent relation with the coil C and the arm is in a substantially horizontal position. When in this position the tensioning device ceasesto rotate. With the continued rotation of the shuttle the strip S being fed therefrom engages the pin remotely arranged with reference to the coil C so as to form another loop 'L in the strip and effect rotation of the tensioning device as hereinbefore described.

The endless belt 28 operating over the drive pulley 27 is trained about a pulley mounted on a motor driven shaft (not shown) adapted to be connected with a source of current supply. The motor and shaft is located below the base 23 and the same is cut out as at 86 through which the endless belt 28 extends.

With the rotation of the drive shaft 24, the cam follower 56 and cam wheel 59 functions to positively move the outer end of the lever 53 back and forth about the pivot 67 to thereby effect partial turning of the shaft 49 and coil C in timed relation with the rotation of the shuttle. The lever 53 is pivoted by the pin 67 to dispose the same for swinging movement in a horizontal plane above the base 23 and to position the cam follower 56 in engagement with the cam wheel 59 below the drive shaft 24.

The swinging arm 50 is adapted to be swung out of engagement with the coil C by means of an eccentric cam lever 88 pivoted for swinging movement on the pivot 89 and having a handle member 90 for manually swinging the lever against the bias of the spring 67.

It will be understood that the hinge section 12 of the shuttle is swung inwardly to dispose the shuttle in the axial opening in the coil and when so disposed the section 12 is moved into latched engagement with the section 11 thereof to retain the sections in annular formation during rotation.

The strip material S of any desired character such as waxed paper, insulating tape and the like and the same may be wound on the coil to provide any desired number of layers thereon.

When the motor driven means is placed in operation the shuttle and coil will be continuously rotated to wind the strip material onto the coil, the tensioning device functioning with each rotation of the shuttle to move the strip material into engagement with one of the fingers 77 to form a loop L therein which decreases in size as the finger approaches the coil with the turning of the tensioning device. This shortening of the loop overcomes the means biasing the finger and arm whereby the same are rotated to free the loop therefrom. This discontinues the turning of the tensioning device until another loop is formed about the finger oppositely disposed from the one previously engaged by the loop.

While the preferred form of the invention has been shown and described herein, it is to be understood that the same shall not be so limited but shall cover and include any and all modifications of the invention which fall within the purview thereof.

What is claimed is:

1. In a device of the character described, an annular shuttle adapted to hold a supply of strip material which is fed therefrom through the bottom thereof, a base, means mounting said shuttle on said base for rotation, power means operatively' engaging said shuttle for rotating the same, a support carried by said base for rotatably mounting a coil thereon in a plane in angular relation to the plane of said shuttle and through the axial opening of which coil the shuttle moves in its rotation for winding the strip material in covering relation on the periphery of the coil, a rotatably mounted tensioning means, biasing means exerting a pressure on said tensioning means retaining said tensioning means against too free rotation, said tensioning means including spaced elements mounted thereon for turning movement into and out of the path of movement of said strip material as the same is vfed from said shuttle with the rotation thereof to thereby form in said strip material loops extending about said elements respectively between the shuttle and the attachment of said strip material to said coil, means biasing said elements to normally dispose the same in the path of movement of said strip material whereby the loops formed about said elements respectively function to rotate the tensioning means a partial rotation and producing by said biasing of said tensioning means against too free rotation a tautness in the loops as the same are wound on said coil, and whereby each-loop rotates the element about which it engages out of the path of movement of said strip material with the movement of said element into adjacent relation with the coil to thereby free the loop therefrom and discontinue turning of said tensioning means until a subsequent loop is formed in the strip material.

2. In a device of the character described, an annular shuttle adapted to hold a supply of strip material which is fed therefrom through an opening in the bottom thereof, a base, means mounting said shuttle on said base for rotation in an upright plane, power means operatively engaging said shnttle for rotating the same, a support carried by said base for rotatably mounting a coil thereon in a plane in angular relation to the plane of said shuttle and through the axial opening of which coil the shuttle moves in its rotation for winding the strip material in covering relation on the periphery of the coil, tensioning means, means mounting said tensioning means for rotation in an upright plane adjacent the plane of said shuttle, biasing means exerting a pressure on said tensioning means retainting said tensioning means against too free rotation, said tensioning means including parallel arms mounted for turning movement relative to said tensioning means, elemerits at the ends of said arms respectively, means biasing said arms and said elements to normally dispose the elements in the path of movement of said strip material as the same is fed from said shuttle with the rotation thereof to thereby form loops in said strip material extending about said elements respectively between the shuttle and the attachment of said strip material to said coil whereby the loops formed about said elements respectively function with the rotation of the shuttle to rotate the tensioning means a partial rotation and producing by said biasing of said tensioning means against too free rotation a tautness in said loops as the same are wound on said coil, and whereby each loop rotates the element about which it engages out of the path of movement of said strip material with the movement of said element into adjacent relation with the coil to thereby free the loop therefrom and discontinue turning of said tensioning means until a subsequent loop is formed in the strip material.

3. In a device of the character described, an annular shuttle adapted to hold a supply of strip material in folded back and forth relation thereon which is fed therefrom through an opening in the bottom of said shuttle, a base, means mounting said shuttle on said base for rotation in an upright plane, power means operatively engaging said shuttle for rotating the same, a support carried by said base for rotat-ably mounting a coil thereon in a plane disposed in substantially right angular relation to the plane of said shuttle and through the axial opening of which coil the shuttle moves in its rotation for winding the strip material in covering relation on the periphery of the coil, tensioning means, means carried by said base mounting said tensioning means for rotation in an upright plane adjacent the plane of said shuttle, biasing means exerting a pressure on said tensioning means retaining said tensioning means against too free rotation, said tensioning means including parallel arms mounted for turning movement thereon about the longitudinal axes of said arms respectively, elements mounted on the outer ends of said arms respectively for turning movement into and out of laterally projecting relation from said arms and into and out of the path of movement of said strip material as the same is fed from said shuttle with the rotation thereof, means biasing said arms and said elements to normally dispose the elements in said laterally projecting relation in said path of movement of said strip material to thereby form loops in said strip material extending about said elements respectively between the shuttle and the attachment of said strip material to said coil whereby the loops formed about said elements respectively function with the rotation of the shuttle to rotate said tensioning means a partial rota-tion and producing by said biasing of said tensioning means against too free rotation a tautness in said loops respectively as the strip material in each loop is wound about said coil with the rotation of the shuttle, and whereby each loop rotates the element about which 6 it engages out of the path of movement of said strip material with the movement of said element into adjacent relation with the coil with the rotation of the tensioning means to thereby free the loop therefrom and discontinue turning of said tensioning means until the formation of a subsequent loop in the strip material.

4. In a tensioning device for tensioning the winding of strip material about a coil from an annular shuttle on which the strip material is wound and with the coil and shuttle mounted for rotation on a support with the shuttle extending through the axial opening of the coil, power means operatively engaging said shuttle for rotating the same, biasing means engaging said tensioning device retaining the same against too free rotation, said tensioning device including parallel arms, means mounting said arms on said support for rotation in a plane adjacent the plane of said shuttle, elements mounted on said arms for turning movement therewith, means mounting said elements on said arms for turning movement into and out of the path of movement of the strip material as the same is fed from said shuttle to said coil with the rotation of the shuttle, and means biasing said elements to normally dispose the same in said path of movement of said strip material to thereby engage said strip material and form loops therein extending about said elements respectively between the shuttle and said ooil whereby the loops function with the rotation of the shuttle to rotate said arms a partial rotation and producing by said biasing of said tensioning device against too free rotation a tautness in the strip material between the coil and shuttle, and whereby each loop rotates the element about which it engages out of the path of movement of said strip material with the movement of said element into adjacent relation with the coil with the rotation of the arms to thereby free the loop therefrom and discontinue turning of said arms until the formation of a subsequent loop in the strip material.

5. In a tensioning device for tensioning the Winding of strip material about a coil from an annular shuttle on which the strip material is wound in a back and forth manner and with the coil and shuttle mounted for rotation on a support with the shuttle extending through the axial opening of the coil, power means operatively engaging said shuttle for rotating the same, said tensioning device including parallel arms, means mounting said tensioning device on said support for rotation in a plane adjacent said shuttle, biasing means carried by said mounting means biasing said tensioning means against too free rotation, means mounting said arms on said tensioning device for independent rotation respectively, elements mounted on the outer ends of said arms for movement with said arms, means carried by said arms mounting said elements on said arms for turning movement into and out of the path of movement of the strip material as the same is fed from said shuttle to said coil with the rotation of the shuttle, means carried by said arms biasing said elements to normally dispose the same in said path of movement of said strip material to thereby engage said strip material and form loops therein extending about said elements respectively between the shuttle and said coil whereby the loops function with the rotation of the shuttle to rotate said arms a partial rotation and producing by said biasing of said tensioning means against too free rotation a tautness in the strip material between the coil and the shuttle and whereby each loop rotates the element about which it engages out of the path of movement of said strip material with the movement of said element into adjacent relation with the coil with the rotation of the arms to thereby free the loop therefrom and discontinue turning of said arms until the formation of a subsequent loop in the strip material.

6. In a tensioning device for tensioning the winding of strip material about a coil from an annular shuttle on which the strip material is wound in a back and forth manner and with the coil and shuttle mounted for rotation on a support with the shuttle extending through the axial opening of the coil and the strip material being fed from the shuttle through a radial opening in the'annular wall thereof, power means operatively engaging said shuttle for rotating the same, said tensioning device including parallel arms, means mounting said tensioning device on said support for rotation in a plane adjacent to and parallel with the plane of said shuttle, biasing means carried by said tensioning device biasing said tensioning device against too free rotation, means mounting said arms on said tensioning device for independent turning movement respectively, elements mounted on the outer ends of said arms for rotation therewith and for turning movement into the plane of the shuttle and into and out of the path of movement of the strip material as the same is fed from said shuttle to said coil with the rotation of the shuttle, means carried by said arms biasing said elements to normally dispose the same in said path of movement of said strip material to thereby engage said strip material and form loops therein extending about said 7 free rotation a tautness in the strip material between the coil and the shuttle and whereby each loop rotates the element about which it engages out of the path of movement of said strip material with the movement of said element into adjacent relation with the coil with the rotation of the arms to thereby free the loop therefrom and discontinue turning,- of said arms until the formation of a subsequent loop in the strip material.

References Cited in the file of this patent UNITED STATES PATENTS 2,254,934 Brown Sept. 2, 1941 2,367,489 Dowd Jan. 16, 1945 2,726,817 Barrows Dec. 13, 1955 2,793,818 Clarke et al May 28, 1957

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2254934 *Aug 2, 1940Sep 2, 1941Edward H AngierStrip-dispensing mechanism for coil-wrapping machines
US2367489 *Aug 10, 1943Jan 16, 1945Western Electric CoWinding apparatus
US2726817 *Jun 28, 1952Dec 13, 1955John BarrowsWinding machine
US2793818 *Feb 17, 1954May 28, 1957Boesch Mfg CompanyApparatus for winding coils
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6098913 *Mar 9, 1999Aug 8, 2000Tek-Rap, Inc.Machine for applying a protective material onto a pipe
US6688076 *May 30, 2002Feb 10, 2004Victor M. Rivera, Jr.Apparatus for wrapping articles in film material
WO2000053351A1 *Mar 8, 2000Sep 14, 2000Tek Rap IncMachine for applying a protective material onto a pipe
Classifications
U.S. Classification242/434.2, 100/12, 53/204, 242/411, 53/409
International ClassificationB65B25/00, B65H81/00, B65H23/00, B65H81/02, B65B25/24
Cooperative ClassificationB65H23/00, B65B25/24, B65H81/02
European ClassificationB65B25/24, B65H23/00, B65H81/02