USRE22418E - - Google Patents

Description

JUL 11, 1944. i.. l.. SALFISBERG R 22,418

l GUMMED TAPE DISPENSER AND APPLIER Original Filed April 9, 1942 2 Sheets-Shet l 551531550 32 27 26 E?! 6' 3 2 gj, B

j' E M9 y uw leroy L. bzlfizsbergl Jan. 11, 1944. 1 1 sALFlsBl-:RG Re. 22,418

GUMMED TAPE DISPENSER AND PPLIER Original Filed April 9, 1942l 2 Sheets-Sheet 2 ma Y Re E E M MF1/Mn Na T |5. .T A lm .wm/ (6 t@ KL f A zn' Reissued Jan. 11, 1944 22,4118 GUMMED TAPE nrsrn-Nssn AND Arrrmn Leroy L. Saifisberg, South Orange, N. J., assigner, hy mesne assignments, to Minnesota Mining and Manufacturing Company, St. Paul, Minn., a corporation of Delaware Original No. 2,317,943, dated April 27, 1943, Serial No. 438,267, April 9, 1942.

Application vfor reissue Novemher'13, 1943, Serial No. 510,097

(Cl. 21S-29) 16 Claims.

This invention relates to a machine for dispensing and for applying to an article such as a package, adhesive strips or sheets, for example, normally tacky or pressure-sensitive adhesive tape sold under the trade-mark Scotch.

Prime objects of the invention are to provide a machine which shall embody novel and improved means for dispensing pieces of tape of predetermined length into a predetermined position to be engaged by a portion of an article, such as a package, upon movement of the latter in one direction, and means operable by and upon said movement of said article for applying said piece of tape to the article; and to provide such a machine wherein the last-named means shall also actuate the means for dispensing the tape, whereby the machine shall be simple and inexpensive in. construction and operation and shall be reliable and durable.

Another object is to .provide such a machine in which all of the motive power necessary to operate it in normal use is supplied by the movement of the articles that are taped or sealed.

Another object is to provide a machine of this character which can be manually operated by a relatively unskilled operator and with a minimum of attention and physical effort.

A further object is to provide in a machine of the general character described novel and improved means for withdrawing in succession predetermined lengths of tape from a roll or strip, ior severing pieces of the tape from the roll or strip, and for projecting and holding the severed pieces in position to be engaged by an article to which the piece of ltape is yto be applied.

Other objects, advantages and results of the invention will be brought out by the following description in conjunction with the accompanying drawings in which Figure 1 is a top plan view of a gummed tape applicator embodying my invention, with portions broken away and shown in section for clearness in illiistration. l

Figure 2 is a Vertical sectional view on the line 2 2 of Figure 1.

Figure 3 is a transverse vertical sectional View one end of a package or box having a piece of adhesive tape applied thereto, showing the man-l ner in which themachine of the invention applies a piece of adhesive tape.

Specifically describing the illustrated embodiment of the invention, the gummed tape applier includes a. case A that may be mounted on any suitable support in any suitable manner, but is shown as set into a hole I in the top of a table or like support B. The casing has a top Wall 2 disposed slightly above the top side of the support B and having an opening 3 through which the tape to be applied is projected and an applier forthe tape is operated.

Within the casing are suitable supports, in the present instance rollers 4, for a roll C of adhesive tape, the rollers being `shown as mounted on cap screws secured in bosses 5 in the casing, the heads 6 of the cap screws serving to hold the roll of tape on the rollers between said heads and the ends of thebosses.

One type of adhesive tape with which my applier may be utilized is what is known as Scotch tape which generally comprises a strip of crepe paper, Cellophane, or the like to one side of which is applied a normally tacky or pressure-sensitive adhesive. Tape can be vunwound from the roll Without transfer or oisetting of the adhesive and the adhesive may be caused to adhere to a surface by simple application of pressure and Without activation of the adhesive as by water, solvents or heat. The strip 'I of adhesive material is unwound from the roll C and passes downwardly and then upwardly around a guide roller 8 and between a guide spring 9 and a block I0, whereby the tape may be guided and pulled upwardly through the opening 3 in the top wall of the casing. "The roller 8 is mounted on afstid II and is held thereon by a cap screw I2. The spring 9 is mounted on a stud I3 and the block IIJ is mounted on an angle bracket I4 which is secured byfscrews I5 to one wall of the casing. Within the casing is also arranged a means generally designated D for feeding the strip 1 of adhesive material so as to locate the free end portion thereof in a predetermined position to be engaged by an article such as a package or box E upon movement of the latter in one direction as shown by the arrow in Figure 2. Cooperating with the feeding means D is a means F for severing a piece of the adhesive material from the strip, and means Galso is provided for applying the severed piece of adhesive material to the box E. As shown, preferably this means G also servesmas the actuator for the feeding means D.

The feeding means comprises a carrier I 6 which is in the form of a flat bar and has a longitudinal slot I1 through which passes the stud I I so that the carrier is slidably reciprocable. Oe

end of the carrier has a head I3 which at its lower limit of movement is pressed into adhesive contact with the strip 1 at the side thereoi' opposite the block I0 and during its upward movement pulls the strip from the roll C. At its upper limit oi' movement the head i3 holds the free end of the strip 1 in position to be engaged by the box E.

The means for actuating the carrier I5 includes a gear I9 mounted on a stud 20 in the casing and rigidly connected to a crank arm 2| which is pivotally connected at 22 to the carrier I6. Meshing with the gear I3 isv a gear segment 23 which rotates about a stud '24 and is rigidly connected to the hub 23 of a bifurcated presser lever 23 between the arms of which is a presser' roller 21. The lever 23 normally is influenced by a spiral spring 23 so as to locate the roller 21`in juxtaposition to and at the side of the free end ofthe strip 1 opposite that against which the box E is moved. A stop stud 23 limits the movement of the lever 28 under the influence of the spring 28.

applied along the top of the casing A in the direction of the arrow as shown by solid lines in Figure 2 whereupon the adhesive tape is pressed between the roller 21 and the end of the box so that the tape is adheslvely attached to the box. Then the operator continues to move the box in the same direction against the influence of the spring 23 which pulls the piece of. tape oil' the head I8 o! the carrier and causes the roller 21 to be moved by and with the box until the roller is forced downwardly through the opening 3 as shown by dot and dash lines in Figure 2. At the same time, the roller rolls over the piece of adhesive tape so as to securely attach the latter to the box.

During this operation, the carrier i6 has been the lever 3i! is held against movement by engagement of a roller 31 on the lever 33 with a stop block 38 on the carrier, but when the carrier reaches its lower limit o! movement, the block 3B is moved out of abutting relation to the roller 31 so that the rolle'.` may swing above the block and permit movement of the lever 30 under the influence or the spring 3l in such a manner as to withdraw the knife blade from the cutting block and the strip as shown by dot and dash lines in Figure 2. Movement of the knife lever is limited by engagement with the stud I3. Then upon movement of the carrier upwardly, the lever 30 is held in its inoperative position by engagement of the roller 31 with the opposite side of the stop block 33 until the carrier has reached its uppermost or normal-position, whereat the block is out of abutting relation to the roller 31 so that the knife lever 33 may be swung by the spring 35 into operative position with the blade 32 entering the slot of the block 33 so as to cut the strip and sever a piece of predetermined length therefrom as shown by solid lines in Figure 2.

Having thus described my invention, what I claim is:

l. A machine of the character described comprising means for feeding a piece of adhesivetape into a predetermined position to be engaged by an article upon movement of the latter thereagainst, means for applying said piece ci' tape to said article upon said movement, and mechanical driving means connecting said feeding means and said applying means whereby operation of the latter produces a further` operation of the feeding means to automatically position a further piece of tape.

2. A machine of the character described comprising means for feeding a piece of adhesive tape into a predetermined position to bee'ngaged by an article upon movement of the latter thereagainst, means movable in response to pressure of the article thereagainst for applying said piece of tape to said article upon said movement of moved downwardly by the gear segment 23, gear I9 and crank arm 2| so as to bring the head I8 of the carrier into contact with the tape at the side of the tape opposite the block Ill. The tape thus is adhesively attached to the carrier.

Preferably the block Il) is of rubber to facilitate the operation.

When the box is lifted by the operator, the lever 23 will be swung in the other direction under the lever 30 has a lateral arm 34 that is.connected by a spring 35to an arm 33 on the carrier IB, said springserving to actuate the lever 30 in each direction as the carrier i6 moves to itsy respective Vlimits of movement.

More 'particularly the knife blade normally is in cutting relation to the block 33 so as to sever the strip as shown in Figure 2. As the strip is applied to the box E and the carrier I8 is lowered.

the article, and a mechanicaldriving mechanism connected between said feeding means and said applying means for actuating said feeding means such that the latter is powered by the said movement of the article to feed a furtherV pieceoi' adhesive tape.

3. A machine of the character described com- Drising means for feeding a stripof adhesive material longitudinally to locate its free end portion in a predetermined position to be engaged by an article upon movement of the latter in one direction, said feedingmeans including'a movable carrier which at onev limit of its movement picks up said Vstrip ofadhesive material and at the other limit locates the free end of said strip ln said predetermined position, means for severing a piece of said strip at said free end portion, means for applying? said piece of material to said article including a, presser normally disposed at the side oi' said piece of material opposite said article so .that said piece of adhesive material will be pressed between said article and said presser and thus adhesively attached to the article upon movement of said article in said direction, said presser being movable by andV with said article `during continuation of said movement of the article, means for actuating said presser in the other direction into normal position. and an operative connection between said presser and said feeding`- means for actuating said carrierv from the first-mentioned y sans limit of-its imovement to ,the second-mentioned limit as said presser is moved by said article.

, 4. An automatic pressure-sensitive adhesive tape dispenser and applier comprising adispensing mechanism for Vwithdrawing pressure-sensitive adhesive tape fromA a roll Vand feeding successivetpieces into a predetermined applying position ready for engagement `by an article upon movement of the latter toward and against the tacky side of a positioned piece of tape, means for applying the positioned `piece of tape to the article including a movable presser normally disposed at the back of the piece of tape and adaptdriving said dispensing mechanism to automatically feed a further piece of tape to lapplying position following application of the preceding niece of tape', movement of the articles providing the source ofpower for operating the dispenser in normal use.

5. A machine of the character described, `comprising means for guiding a strip of tape, means for feeding said strip longitudinally including a carrier movable longitudinally ofsaid strip and .i having a head which at one limit of its move- "ment-picks upsaid strip and. at the other' limit locates Ithe free -end of the strip at a predeterminedV point, means for severing apiece from said strip at .the side 'of Said head Lopposite the free end of the strip when said head is at the second-mentioned limit of .itsmovement, and an yoperative connection between said carrier and said severing means for'actuatiy'ng the latter. I 6. A machine of the character described, com-l prising means for guiding a strip of tape, mea-ns l for feeding saniV strip longitudinally iniuding a carrier movable longitudinally of" said", strip and .having-a head which at. one limit offits movement picks up said strip and at the other limit locates the. free end of the strip at a predetermined. point, means for severing a piegce from said strip at the side of said head opposite the free end of thestrip when said vhead is t the second-mentioned limit of its movement, said severing means including a movable blade, and a tension spring connecting said carrier and I said blade so -that'as said carrier moves from the first-mentioned to the second-mentioned limit and from the second-mentioned to the firstmentioned limit, said spring tends to actuate said blade into operative and inoperative positions, respectively, and cooperating means on said carrier and said blade to restrain the blade against movement during said movements of said carrier and `to release said blade for movement when said carrier is at its respective limits of movement;

'7.` A machine of the character described, comprising means for guiding a strip of tape, means for feeding. said strip longitudinally including a carrier movable longitudinally of said strip and having a head which at one limit of its movement picks up said strip and at the other limit locates thel free end of ythe strip at a predetermined point, means for severing a piece from said strip at the side of said head opposite thei'ree end of the strip when said head is at the second-mentioned limit of its movement, said severing means including a movable blade, and a tension spring connecting said carrier and said bladesothat as said carrier moves from the Iirst- .mentioned toV the second-mentioned limit and from the second-mentioned to the first-mentioned limit said spring tends to actuate said blade into operative and inoperative positions.'

. respectively, and cooperating members on said carrier and said blade normally abutting each.

other to restrain movement of vsaid blade during said movements of said carrier, said member on the carrier being movedV out of abutment with said member on said bla-de, to releasethe blade for movement when the carrier is at its re-v spective limits of movement;

8. A machine of the character described comprising means for guiding a strip of adhesive tape having a pressure-sensitive adhesive on one side exposed, a carrier movable longitudinally of thestrip and having a head which at one limit of its movement is pressed into adhesive contact with said strip and during movement to its other limit feeds said strip to locate its free end in a predetermined position to be engaged at its adhesive side by an article upon movement of the latter in one direction, means for actuating said carrier, meansfor severing a piece-of material from saidstrip, i and means for applying said piece of material to said article including a presser normally disposed at the side of saidpiece of material -`opposite saidarticle so that `saidpiece of adhesive material will be pressed between said article and said presser and thus adhesively attached tothe articleupon movement of 'said article in said direction, vsaid presser being movable by and with said article during continuation of said movement oi the article, means for actuating `saidpresser in y' the other direction into-normal position, and an f operative connection between said presser and said severing means for actuating the latter.

9,The machinesetfforth in claim 2 whereinsaidpre'sser is-pivotally mounted and said loper-- ative connection between said presser and said `feeding means includes a gear segment rotatable;` by said presser and coaxiallywith said pivotal connection, a second gear, and a crank connecj: tion between said second gear and said feeding ,means l0, The 'machine set forth in claim 3 wherein said presser is pivotally mounted and said operative connection between said presser and said feeding means includes a gear segment rotatable by said presser and coaxially with said vpivotal connection, a second gear, and a crank connection between said second gearand said carrier of the feeding means.

l1. A machine of the character described comprising means for feeding a strip of adhesive material to 4locateits free lend portion in a predetermined position to be engagedby an article upon movement thereof in one direction, means for severing a piece of material at the free end portion of.' said strip, means for applying said piece of material to said article including a presser normally disposed at the side of said piece of material opposite said article so that said piece of adhesive material will be pressed between said article and said presser and thus adhesively attached to the article upon movement of said article in said direction,said presser being movable by and with said article during continuation of said movement of the article, means for actuating said presser in the other direction into normal position, and an operativeconnection between said presser and said severing means for actuating the latter.

4 i sans l 12. A'machine oi' the character described comprising means i'or feeding a strip oi adhesive material to locate its free end portion in a predetermined position to be engaged by an article upon movement thereof in one direction, including a carrier movable longitudinally of said strip and having a. head which at onel limit otits movement picks up said strip and at the other limit locates the free end of the strip at a predetermined point, means for severing a piece from said strip at the side of said head opposite the free end of the strip when said head is at the secondmentioned limit of its movement, said severing means including a movable blade, means for applying said piece of material to said article including a presser normally disposed at the side of said piece of material opposite said article so that said piece of adhesive material willv be pressed between said article and said presser and thus adhesively attached to the article upon movement of said article in said direction, said presser being movable by and with said article during continuation of said movement o1 the article, means for actuating said presser in the other direction into normal position, an operative connection between said presser and said carrier for actuating the carrier, and an operative connection between said carrier and said blade for actuating the latter.

13. A machine of the character described comprising a support, means for feeding a strip of material to locate its free end portion in apredetermined position, including a movable carrier `having a head which at one limit of its movemen't picks up said strip and at .the other limit locates the free end of the strip at a predetermined point, means for severing said strip at the side of said head opposite the free end of the strip when said head is at the second-mentioned limit of its movement, means for actuating said carrier including a lever pivotally mounted on said support and an operative connection between said lever and said carrier for moving the latter to one limit of its movement as said lever swings in one direction and to move said carrier to the other limit o f its movement as said lever moves in the other direction.

14. The machine set forth in claim 13` wherein said severing means includes a movable blade and with the addition of Aan operative connection between said blade and said carrier for actuating the blade, i

15. A machine of the character described comprising means for guiding a strip of adhesive tape having a pressure-sensitive adhesive on one side exposed, a reciprocable carrier having a head which at one limit of its movement is pressed into adhesive contact with'said .strip and during movement to its other limit feeds said-strip to locate its free end in apredetermined position to lbe engaged at its adhesive side by an article upon movement ot the latter in one direction,

means lor severing said strip at the side or said head opposite said free end of the strip so that the end portion or the strip thus separated from the strip will be held by said head of the carrier, l0 and means for applying said piece o1' material to i said article including a presser normally disposed at the side of said piece of material opposite said article so that said piece oi' adhesivematerial will be pressed/between said article and said presser 15 and thus adhesively attached to the article` and pulled from said head o1 the carrier upon movement of said article in said direction, said presser /being movable by and with said article duri "g continuation oi' said movement of the articl means for actuating said presser in the other dlrection into normal position, and means operatively connecting said presser, said carrier and said severing means for actuating said carrier and said severing means by and upon movement of said presser. Y

16. A machine of the character described comprising means for guiding a strip of adhesive tape having a pressure-sensitive adhesive on one side exposed, a reciprocable carrier having a head which at one limit of its movement is pressed into adhesive contact with said strip and during movement to its other limitl feeds said strip to locate its free end in a predetermined p'ositpn to be engaged at its adhesive side by an article upon movement of the latter in one direction,

means for severing said strip at the side of said head opposite said free end of the strip so that the end portion of the strip thus separated from the strip will be held by said head of. the carrier,

40 and means for applying said piece of material to said article including a presser normally disposed at the side of said piece of materialA opposite said article so that said piece of adhesive material will be pressed between said article and said presser and thus adhesively attached to the article and pulled from said head of the carrier upon movement of said article in said direction, said presser being movable by and with said article during continuation of said movement of the article, means for actuating said presser in means for actuating said severing means.

LEROY L. SALFISBERG.

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