US2655214A

US2655214A - Tape cutting device

Info

Publication number: US2655214A
Application number: US135767A
Authority: US
Inventors: Paul Van Cleef
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-12-29
Filing date: 1949-12-29
Publication date: 1953-10-13
Anticipated expiration: 1970-10-13

Description

Oct. 13, 1953 P. VAN CLEEF TAPE CUTTING DEVICE Filed Dec. 29, 1949 Patented Get. 13,

UNITED PATEL-N11 *QFFICEL sclaimsz (61.164-845) Th se t in enti n relates ne a 9 c? 'i 1 ti l? e i f t v l and h vices for cutting ta pe'; M91?" particularly the; p'e pect it'ie s} (ff-1a; taifiecuttin'g' flevic en n rele ee t hat e Qt dev. .e W. i ilh 1% em o i fi n: ecifi al de i ne i9; wi h tar)? in r ls. 'q i t h fii the i i Qr e a e hat L tweer Fi i 'l'll' "a -l6 a l f tape; round a f w re and has 7 @lfidI illustrating" the l h ur a e a coa in 9515MB senslye F 7. efin d e Q l t .9.1 P t-9 thfdevi'ebp'ft t t. T .l9- at Mb I 9 5 'l i le Of @1 hat i isslid'ab ther mund ilr ig un ies i qr'epr d mi e f r' d en th i ape ses an ute p t e iyl n n a eme t w l} t-he'outermost tabenonvolut'icii and ainjnner pert e", fq fiectively'; tcp and bot- Of al ijaL-p' cuttin device Y t o'f theinvntibn; n in sliding en ag ment wit he'rinner 6 i @F i l sl i i l ce' of of t e e, a id emb'oldise 9. 1 9 3 a t ,g-

in l fi 'h rbllfilape; f transversely gm semeqpr m m-meme e 'ur m re n es" flop n edge whereby the inner or attached t'crn fie p'ectiiie W g'f a. tape ciitting' device un ng m jeicl t #9 3 V r e lfif l o n nr d V of the tape in ro11'fr1'n'er01 ind'th I iire'9f' is a} sige View illu'st'rting the device One object of the invention 1s to N Of Flgli S' 7' m cijeritiv relation with a, t g e ce hish' cwhi i my??? e aiv'e t 1 ri f e' H ent up n a iast r ai ad a tag 0Y6? l v. Whlbhls w lpFigufeS '1 d 3 previously designed; gi evicesjcrthg ga nnfpurggge Q? the dr Wifig ce'ri titiites" one fbr'm of the"iIi'-' and is characterizedby the fact that the Sitter veriticgi, 151 hdthtedfbfuse in connecticn'with n inner parts therebfa l onne t" he? 59 9 ,ITIPSETWS'EELS'Q medium forum by elastic means in order th" the puter ,partis f e y 'w l 'sbf tape trom the roll and automatically pulled or grawfn tbwgrggthgjnngr cd i'fs istsj of Hit three" elements, namely} an cuter part as the size of the r911 prpgregsively decreases p'f f 1 i 'l r D afid an elastic con in connection with'removgtl offlen th t I Ii'e gfi elemenv l4 ptweenthecuter and inner Another object oftjn in nt R QY e 1 S; l hetepe rc :u'emb'odi sen ennhler corea tape cutting device of the las't'men ne d fsfifi cbinpfetivqythick cardboard or other acterinwhich the ela sp mezinsii nolding m1 l iitb1eme namne nie tape u is wound in connecting the outer and inner perte tggethef 9 1 for a; the ccr el fiend has on' its is in the form of' an'ordinar'y rubber and hit-hf l h' w-c atiile0f pr suresensitive per has its side porticns operetil M "ccnnecte p e v V a i A tz'ai bkfiiihefstvsl When it is ple'sire'ct to of the parts'and itsrounded enq'pqrt ns ppergremove-=2; length cf tape frcm the rcll the outer endo'f the thine i s grespd erig' pulled'a'vtajy from the'fcbi'eyalrid at the "a" e"time'thero11 is'dot'ated length; pf tape is lirjl'wou'fid; 'her' crat't sched end of' the un ut from the reifiainder" of the pert -o'f the ron l0; as weu' uncf the device of Figures 1-,2 eharcterand preferably ihz rrietil stmnine and consists a an n .11% ect ti ti" 0; th 1. t9 wa w a t lil-lfiafidia r 'w cutting device willb eepparent jrpfgn giccn qe'rg; device s s operative pbitio'n tion of the fc11cwingfdetgi1egfgl ciiptio d v 'e i ftr part' li is' in lid The inventicncongigis he sev A i n g" gliliggdg ill lf l 1 h? Qli r' cbniic'hit'icnhf ture which are hereinafte seti fprth'e, g the tjp'e Hin order 'tht it i c15ab1ecf being m r r i la lyisl fiilfid b it the z se s r itculn ere l with new t t r6 clusion hereof. The qytcf'partfi iethe s i rr'g e \z'liii'tf-l et's the In t in 'w ich" e the c terpart'isnea a part of this specificgt io; tang-li-ler aii fl'at'ahd hesut cehti'etpbr'ticndewhich like numera s of "reference ote tlon. The front wall I! of the outer part I 2 is connected to, and extends downwards and forwards from, the front margin of the top wall [6. The lower margin of the front wall is bent outwards so as to fit slidably against the subjacent portion of the outermost convolution of the tape. It is shaped to provide a serrated or tooth-equipped cutting edge 20 which extends transversely across the tape and serves as a severing medium or instrumentality for the inner end of the unwound length of tape. The rear wall 18 of the outer part I2 is connected to, and extends downwards and rearwards from, the rear ans-dais margin of the top wall 16 and is the same in height as the front wall. the rear wall is bent outwards so as to fit slidably against the subjacent portion of the outer convolution of the tape.

The inner part I3 of the device of and 3 is adapted to extend transversely across and to engage slidably the inner periphery of the core 15. It is preferably formed of a one-piece sheet metal stamping and consists of an elongated flat strip 2|, the ends of which are bent downwards and inwards to form a pair of opposed inwardly extending books 22.

The elastic element 44 serves yieldingly to connect the outer and inner parts l2 and I3 of the device of Figures 1, 2 and 3. It is in the form of an ordinary rubber band and consists of side portions 23 and curved or rounded end portions 24. The intermediate parts of the side portions 23 fit within, and extend lengthwise of, the channel is in the central portion of the top wall l6 and the end parts of said side portions extend inwards across the sides of the tape roll H! as shown in Figure 3. The curved end portions 24 of the rubber band that constitutes the elastic element [4 are looped around the hooks 22 on the ends of the strip 2 I. The length of the rubber band is such that the band, when connected in place, is under tension and hence serves to draw or pull together the outer and inner parts. When a length of tape is removed from the roll 10 as hereinbefore described the device of Figures 1, 2 and 3 slides around the roll due to the action of the tape leaving the roll. After the desired length of tape has been removed the outer part [2 is pressed firmly against the roll and the unwound length of tape is then pulled to one side so that its inner or attached end is cut by the serrated or tooth-equipped edge of the lower margin of the front wall H. The elastic element It operates automatically to pull or draw the outer part 12 towards the inner part 13 as the size or diameter of the roll l0 progressively decreases in connection with removal of lengths of tape (see dotted lines in Figure 3). The intermediate parts of the side portions 23 of the elastic element rest on the bottom of the channel l9 and are held against lateral displacement with respect to the outer part 12 as a result of engagement with the channel sides. By confining the intermediate parts of the side portions of the elastic element in the channel the element as a whole operates to cause the inner part 13 to slide conjointly with the outer part when the outer part is moved circumferentially with respect to the roll in connection with removal of a length of tape from the roll.

The device of Figures 2 and 3 effectively a efficiently fulfills it intended purpose and, due to its construction, may be manufactured or produced at an extremely low cost. It may be applied or mounted in place with facility and is The lower margin of Figures 1, 2

4 characterized by the fact that the elastic element l4 serves automatically to draw the outer part l2 toward he inner part as the roll of tape diminishes in diameter. After the tape of the roll I0 is exhausted the device may be applied to another roll merely by unhooking one of the end portions 24 of the elastic element from its hook. This releases the outer and inner parts so that they may be withdrawn from the roll and then applied to another roll. Application of the device to a new roll of tape is effected by placing the outer part 12 against the outer convolution of the tape and the inner part against the inner peripheryof the core and then looping over the hooks 22 the end portions of the rubber band that constitutes the elastic element l4.

' The device which is shown in Figures 4, 5 and 6 of the drawing constitutes a second embodiment of the invention and is illustrated in connection with a tape roll 25. It serves the same purpose as, and functions similarly to, the tape cutting device of Figures 1, 2 and 3. The roll 25 is the same as the roll H3 and comprises an annular core and an elongated strip of tape which is wound spirally around the core and has on its inner surface a coating of pressure sensitive, permanently tacky adhesive. The device of Figures 4, 5 and 6, like the device of Figures 1, 2 and 3, consists of an outer part, an inner part and an elastic element. The latter are designated in the drawings, respectively, by the

reference numerals

26, 21 and 28.

The outer part 25 is preferably in the form of a sheet metal stamping and consists of a bottom wall 29, a front wall 30 and a back wall 31. The bottom wall is fiat and rectangular and engages slidably the outermost convolution of the tape forming a part of the roll 25. It is the same in width as the tape and has its central portion upwardly deformed in order to provide a hollow, full width rib 32. The latter is of inverted U-shaped cross section, has open ends and is disposed midway between the front and rear margins of the bottom wall 23. The front wall 30 of the outer part 26 is connected to, and extends upwards and rearwards from, the front margin of the bottom wall 29. It is disposed at approximately a 60 angle with respect to the bottom wall and has its upper margin shaped to form a serrated or tooth-equipped cutting edge 33 which extends transversely of the roll and is located an appreciable distance above the outermost convolution of the tape. The rear wall 3| of the upper part 26 is connected to, and

extends upwards and forwards from, the rear margin of the bottom wall 29. It is disposed at substantially a 60 angle with respect to said bottom wall and has at its upper margin a downwardly and forwardly extending integral extension 34 which is disposed directly behind and serves to reenforce the front wall 30 against flexure in a rearward direction. When a length of tape is unwound or withdrawn from the roll 25 and then swung or folded rearwards so that its inner end extends across the serrated cutting edge 33 and the upper margin of the front wall 30 of the upper part 26 sidewise pulling of the tape will result in its inner or attached end bein cut by said edge. By having the cutting edge 33 disposed at an appreciable distance from the outermost tape convolution the outer end of the tape on the roll 25, i. e., the tape end that remains after unwinding and cutting of a length of tape, extends upwards across the front wall 30 and hence forms a tab which may be readily rasped in connection with unwinding and cutting the next length of tape from the'roll. The upstanding rib 32 on the central portion of the bottom wall 2-9 defines with the lower margin of the front wall an opentop and ended full width channel and forms with the lower margin of the rear wall 3| an open top and ended full width channel 36.

The inner part 2! of the tape cutting device of Figures 4, 5 and 6 extends across and engages sl-idably the inner periphery of the core of the roll 2-5 and is the same in design and construction as the innerpart {3 cfthe tape cutting de vice of Figures 1, 2 and 3;. It is preferably in the form of a one-piece-sheet metal stamping and comprises an elongated, flat, rectangular strip 31, the ends of which are bent downwards and inwards to form a pair of opposed hooks 38.

The end-less elastic element 28 serves yieldingly to connect together the outer and

inner parts

26 and 21. It is in the form of an ordinary rubber band and consists of' a pair of side portions- 39 and a pair of curved or roundedend portion 40. The central parts of the side portions 39 are disposed within, and extend lengthwise of, the channels 35 and 36' on opposite sides of the upstanding rib' 32- and the endparts of the side portions 39 extend inwards across the sides of the roll 25, as shown in Figure 6 of the drawing. The

curved or rounded end portions 40 of the rubber band constituting the element 28 are looped or hooked around the hooks 38 at the ends of the strip 37'. The element 28 functions in the same manner as the elastic element [4 of the cutting device of Figures 1, 2 and 3 and serves to connect the outer and

inner parts

26 and 21 together for conjoint sliding movement circumferentiall y with respect to the roll and also automatically to draw or pull the outer part towards the inner part as the roll of tape decreases in size or diameter in connection with removal of lengths of tape therefrom. The tape cutting device of' Figures 4, 5 and 6 has the same advantages and characteristics as the device of Figures 1, 2 and 3 and is the same as the last mentioned device except for the form or design of the outer part 26.

The cutting device which is shown in Figures '7, 8 and 9 constitutes a third embodiment of the invention. It is illustrated in connection with a conventional tape roll 4|, functions in the same man er as he devi e oi E eur s 1. 2 a d and the e ice of u s 5 a d. 6. a con is s of an outer part 42, an inner part 43 and an endless elastic element 44. The outer part 42 is preferably in the form of a one-piece sheet metal stamping and comprises a flat, rectangular plate 45 which when the device is in its operative position engages slidably the outermost convolution of the tape of the roll 4|. The width of the plate is substantially the same as the tape. The front margin of the plate 45 is shaped to form a serrated or tooth-equipped cutting edge 46 which extends transversely across the tape and serves the same purpose as the cutting edge 20 of the cutting device of Figures 1, 2 and 3. The ends of the side margins of the plate 45 are bent upwards and inwards in order to form four inwardly extending hooks 41 at'the corners of the plate. The intermediate portions of the side margins of the plate 45 are bent downwards to form depending flanges 48 which are in straddled relation with the sides of the roll of tape and serve to guide the plate in connection with movement circumferentially of the roll and also to hold the '6 plate against lateral or sidewise displacement with respect to the rolh' The inner part 43 extends transversely across and engages slidablythe inner periphery of the core of the tape roll 4fl. It is preferably in the form of a one-piece sheet metal stamping and consists of a rectangular plate 49, the central portion of which is downwardly bent or deformed to form a full width, depending rib 5B. The front andrear margins of the plate 48- are bent downwards and define with the sides ofthe rib 50 two spaced apart, open ended channels 5|. The latter face downwards and have open bottoms.

The elastic element 44 is the form or an ordinary rubber bandand consists of side portions 5t and end portions 52'. The intermediate parts of the side portions 51 are disposed within, and extend lengthwise of, the channels 50* and the end parts. or the side portions 5| extend outwards across the sides of the tape roll 4|. The end portions of the elastic element 44 extend. lengthwise of the side. margins of the plate 45 constituting the outer part 42- and are arranged; in hooked or looped relation'wi-th the upwardly and inwardly extending hooks 4-1 at the corners of the plate 425. The-elastic element 44 serves. the same purpose as the elastic element I4 01" the device of Figures 1, 2 and 3 and the elastic element 28 of the tape cutting device of Figures 4, 5 and 6. It serves operativel y to connect the outer and

inner parts

42 and 43 for conjoint sliding movement around the roll of tape and also automatically to draw or pull the outer part toward the inner part in connection with progressive decrease in the size or diameter of the roll 4| due to removal oi lengths of tape from the roll.

The device of Figures 8 and 9, as heretofore indicated, functions in the same manner as the device of Figures l, 2 and 3 and the device of Figures 4, 5- and -G. In addition, it possesses the same advantages and characteristics.

The invention is not to be understood as irestri'cted to the details set forth since these may be modified within the scope of the appended claims without departing from the spirit and scope of the invention.-

Having thus described the invention what I claim as new and desire to secure by Letters Patent is:

' 1. As a new article ofmanufacture, a device designed for use in connection with an open center rollof tape, adapted when a length of tape is unwound from the roll and properly manipulated with respect to the device to cut the inner end of the length, and comprising an outer part extending across, and circumferentially and bodily slidable on, the outermost convolution of the tape and provided with a tape cutting edge, an inner part extending across, and circumferentially and bodily slidable on, the inner periphery of the roll, one of the parts having an open ended channel formation formed therein and extending completely thereacross and from one side of the roll to the other, and the other of said parts being provided adjacent the sides of the roll with opposed hooks and elastic means extending between the two parts, arranged to connect said parts together for conjoint sliding movement relatively to the roll and also automatically to pull or draw the outer part towards the inner part as the roll decreases in size due to removal of lengths of tape therefrom, and consisting of a single rubber band embodying side portions and end portions between the ends of the side portions and having the intermediate parts of its side portions disposed within, extending lengthwise through, and in laterally interlocked relation with, the channel formation of the one part, the end parts of said side portions extending substantially radially across the sides of the roll, and its end portions looped around, and detachably connected to, the hooks of said other part.

2. As a new article of manufacture, a device designed for use in connection with an open center roll of tape, adapted when a length of tape is unwound from the roll and properly manipulated with respect to the device to sever the inner end of the length, and comprising an outer part extending transversely across, and circumferentially and bodily slidable on, the outermost convolution of the tape, provided with a tape cutting edge at its front portion, and having formed therein an open ended, full width channel formation, an'inner part extending across, and circumferentially and bodily slidable on, the inner periphery of the roll and provided adjacent the sides of the roll with opposed hooks, and elastic means extending between the two parts, arranged to connect said parts together for conjoint sliding movement relatively to the roll and also automatically to pull or draw the outer part towards the inner part as the roll decreases in size due to removal of lengths of tape therefrom, and consisting of a single rubber band having the intermediate parts of its side portions disposed in, extending longitudinally through, and laterally interlocked with, said channel formation in the outer part, the end parts of said side portions extending radially inwards across the sides of the roll, and its end portions looped around the hooks on the inner part.

3. As a new article of manufacture, a device designed for use in connection with an open center roll of tape, adapted when a length of tape is unwound from the roll and properly manipulated with respect to the device to sever the inner end of the length, and comprising an outer part extending across, and circumferentially and bodily slidable on, the outermost convolution of the tape and embodying a top wall spaced from said outermost convolution and having formed therein a depending, open ended,

full width channel, a front wall connected to, and extending downwards and forwards from, the front margin of the top wall and provided at its lower margin with a tape cutting edge, and a rear wall connected to, and extending downwards and rearwards from, the rear margin of the top wall, an inner part extending across, and circumferentially and bodily slidable on, the inner periphery of the roll and provided adjacent the sides of the roll with opposed, inwardly extending hooks, and elastic means extending between the two parts, arranged to connect said parts together for conjoint sliding movement relatively to the roll and also automatically to pull or draw the'outer part towards the inner part as the roll decreases in size due to removal of lengths of tape therefrom, and consisting of a rubber band having the intermediate parts of its side portions disposed within, and extending lengthwise through, the channel, the end parts of said side portions extending inwards across the sides of the roll and its end portions looped around, and detachably connected to, the hooks on the inner part.

4. A new article of manufacture as defined in claim 1 wherein the outer part is provided with a bottom wall positioned in sliding engagement with the outermost convolution, which wall has said open ended channel formation therein and extending completely thereacross, a front wall connected to, and extending upwards and rearwards from, the front margin of the bottom :all and provided at its upper margin with a tape cutting edge, and a back wall connected to and extending upwards from, the rear margin of the bottom wall and wherein the inner part is provided adjacent the sides of the roll with opposed inwardly extending hooks.

5. A new article of manufacture as described in claim 1 wherein the outer part comprises a substantially flat plate positioned tangentially with respect to the roll, which plate is provided with upwardly and inwardly extending hooks located adjacent to its side margins, and wherein the inner part is provided with said open ended channel formation formed therein and extending thereacross from one side of the roll to the other.

PAUL VAN CLEEF.

References Cited in the file of this patent UNITED STATES PATENTS 0 Number Name Date 251,871 Hale Jan. 3, 1882 353,627 Devore Nov. 30, 1886 947,997 Riley Feb. 1, 1910