US3022958A

US3022958A - Reel

Info

Publication number: US3022958A
Application number: US861509A
Authority: US
Inventors: Charles E Bieber
Original assignee: Monroe Calculating Machine Co
Current assignee: Monroe Calculating Machine Co
Priority date: 1959-12-23
Filing date: 1959-12-23
Publication date: 1962-02-27
Anticipated expiration: 1979-02-27

Description

C. E. BIEBER Feb. 27, 1962 REEL Filed Dec. 23, 1959 INVENTOR. CHARLES E. B/EBER A T TORNE V United States Patent 3,022,958 REEL Charles E. Bieher, Roselle, N.J., assignor to Monroe Calculating Machine Company, Orange, N.J., a corporation of Delaware Filed Dec. 23, 1959, Ser. No. 861,509 9 Claims. (Cl. 242-713) This invention pertains to reels or spools for web material such as inked ribbons.

It is an object of the invention to provide a reel having novel means for securely holding a roll of web material thereon.

It is a further object to provide a reel having gripping means for securely holding a roll of web material.

It is a further object to provide a reel having gripping means for securely holding a roll of web material, said reel including novel means whereby the gripping means can be readily and easily operated to grip or release the roll.

In the illustrative embodiment of the invention dis- EWZZfifiS Patented Feb. 27, 1932 at a narrow integral flange 7 of the stud, which abuts one face of the support member 5. A nut 10 threaded on stud 6 engages the opposite face of the support memher and holds the stud rigidly in place.

The side plate 3 is rigidly secured, as by being spun thereon, to a sleeve-like hub member 11. Journalled for rotation in a-central longitudinal bore 12 of stud 6 is an elongated shaft 13. The hub member 11 is mounted on shaft 13 and is rigidly coupled thereto by a pin 14 which is fast with the shaft and which extends through closely fitting circular openings in the hub member.

Accordingly, it will be seen that shaft 13, hub 11, and plate 3 are rigidly coupled together as a unit for rotation about the axis defined'by the bore 12 of stud 6. Shaft 13' is adapted to be rotatably driven by any suitable means. For example, a cup-shaped pulley ,15

'. may be'rigidly secured to the shaft by a set screw '16 closed herein, the reel comprises a pair of spaced side plates detachably coupled together. means maintains the side plates in coupled relation. Mounted on the outside face of one of the side plates is a pair of levers, disposed on opposite sides of a diametral line of the plate; Each of the levers carries an inwardly extending pin adapted to grip the inside of the roll of web material carried by the reel. Spring means acting on the levers resiliently urge the pins into gripping engagement with the roll. The s'pring'means are also utilized to urge the aforementioned latching means to operated position. Each lever also includes a suitable finger piece which maybe grasped to rock the gripping pins away from engagement with the roll to release the latter. V t

Other objects and advantages of the invention will be readily apparent from the following detailed description when read in connection with the accompanying drawings, in which:

FIG. 1 is a side elevational view of the reel of the present invention.

Asuitable latching FIG. 2 is a sectionalview taken on line of FIG. 1.

FIG. 3 is a sectional view taken on line 33 of FIG. 2. Referring now to the drawing, reference numeral l designates the roll of web material carried by the reel. The type of web material for which the reel of the pres- .ent invention is primarily intended is an inked ribbon havingv a base layer of paper, Mylarf or like material. It will be understood, however, that the reel can be used for any desired type of web material, e.g.,punche d;tape, magnetic tape, motion picture film, etc. The roll 1: in-

upon which the web materialis wound.

The reel or spool of the present invention includes a pair of substantially

identical spacedside plates

3 and 4. The plates are disc-like in form and include the usual

circular cutouts

3a, 4a. mounted on a suitable fixed support means 5. The other plate, 4, which carries the roll of web material, is normally coupled to the fixed plate for rotation therewith. Means is provided whereby the outer plate 4 may easily be removed for mounting thereon a roll of the web material or for removing therefrom the empty core of armed roll, as will be described subsequently.

Plate 3 is mounted as follows. As best seen in FIG.

2 a stud 6 threaded along a portion of its length is screwed through a correspondingly threaded opening in the supporting member 5. Supporting member 5 may be a framing plate of any suitable business machine such as a typewriter, adding-listing machine, or the. like. The

'inner end of the threaded portion of the stud terminates Gne of the plates, 3, is rotatably with pin 14.

and may be driven by a belt 17 actuated by any suitable power source. Undesirable lengthwise movement of the shaft in either direction is prevented by abutment of the inner face of the base of the cup-shaped pulley with one end of stud 6, and abutment of the. side plate 3 with the opposite end'of'thejstud. v

Customarily, the-reel is driven only if it is used as a take-up reel. When it is used as a supply reel, there will usually be no need to provide a special drive means for the reel, since insuch cases pulling the ribbon from the reel to feed the ribbon will rotate the reel.

: Rigidly secured to the removable side plate dis a coaxial inwa'rdly extending collar 20 whose inner diameter is such that it may be slid over the hub 11 .of plate 3.

The collar 20 is provided with two pairs of diametrically opposed slots-21 which extend inwardly from the free end thereof and are'adapted to receive the outer end portions of pin 14 which extend radially beyond the hub 11. This pin and slot arrangement couples the

side plates

3 and 4 together for conjoint rotation. One pair of opposed slots 21 would of course be sufficient but several angularly spaced pairs are provided to facilitate mounting of the side plate by reducing the amount of turning which the operator will have to do to line the slots up The removable side plate-4 is releasably held in as i'sembled relation with plate 3 by means of a latch 22.

Latch 22 comprises a flat strip of material lying against the outside face of plate 3'. A pair of headed pins 23 secured'to plate 3 along a diametral'line thereof are slidably received in aligned elongated slots 24 of the latch Jwhereby'the latter-is allowed limited longitudinal movement. -Adjacent its center, latch 22 is provided with a circular opening 25. As best seen in FIG. 2,--the leftcludes the usual annular core 2 oflcardboard or the like hand end portion of Shaft 13 is provlded Wlth a narrow groove 26. The axial width of this groove is slightly greater than the thickness of latch 22. When the reel is in assembled condition, the free (right) endof collar 26 abuts the'inside face of plate 3 and thereby determines .urge-the latter toward the right in FIG. 1 whereby a portion of the edge of opening 25 enters the groove and engages the base thereof. Accordingly, plate 4 will be held latched against axial movement awayfrorn plate"3 j by the sidewall of the groove.

To release the latch for removal of pltae 4-, a laterally :bent lug 32 provided at the opposite end of the latch from

tongues

30, 31 is grasped and moved radially inwardly toward the center of plate 4' against the tension **of

springs

21 and 28. This will move the edge of open- 3 ing 25 out of groove 26 whereupon plate 4 is free to be slid axially away from plate 3 for disassembly.

The means whereby the roll of web material is releasably held on plate 4 will now be described. Rigidly secured to plate 4 is a number, in the present case four, of identical inwardly extending pins 33. Hereinafter, these pins are referred to as fixed pins meaning that they are fixed relative to plate 4. The centers of the pins lie along a circle whose center coincides with the center of plate 4 and collar 20. The radius of the circle along which the pins lie, and the diameter of the pins themselves is such that the roll 1 may easily be slid over the pins, the core '2 of the roll being loosely supported on the pins. It will be understood that the roll will be introduced first over the free ends of the pins and will then be shifted axially by the operator until one side face of the roll engages the inside face of plate 4. e

. The roll is held securely but releasably on plate 4 by a pair of diametrically opposed

movable pins

34, 35 substantially identical with the fixed pins .33. Eachof the

movable pins

34, 35 is rigidly secured to the longer arm of one of two respective bell cranks 36, .37. The two the two respective movable pins 34-, 35 on core 2 will never be precisely equal, the inside face of the core will bear against a pair of the pins 33, whereby the latter aid in gripping the core and holding it securely relative to plate 4. However, it will be understood that in particular applications, less than four fixed pins may be used and in fact the fixed pins might be dispensed with altogether. This will of course depend on among other things, the rigidity of the core and the need for precisely centering the roll.

Also, only one movable pin could be used in conjunction with one or more fixed pins.

While this specification sets forth in detail the present and preferred construction of the invention, many modifications and variations may be made without departing from the spirit and scope of the invention as defined by the appended claims. his accordingly intended that the disclosure of one specific embodiment of the invention be illustrative only and not limitativc of the claims.

bell cranks are respectively pivotally mounted on side plate 4 by means of pivot pins 40 and 41. The

pins

34, 35 extend axially inwardly in the same direction as pins 33 through apertures 42, 43 of plate 4, the outer edge portions of the apertures serving to limit the outward movement of the pins.

Referring to FIG. 1, it will be seen that the longitudinal of latch 22 lies on a diametral line of plate 4 and the bell cranks are disposed on oppositesides of the latch symmetrically with respect to the same diametral line. Earlier it was mentioned that the latch 22 is urged to latching position by the two springs 27, "28,. These same springs are also utilized to rock the bellcranks abont their respective pivot axes wherebylthe pins .34, 35 cars ried thereby areurged outwardly to gripcore 2 tosecure- .ly hold "the roll -1 on plate ,4. "For this purpose opting '27 is connected to an upstanding lug 44 of bell crank '36 and spring28 issirnilarly connectedto .an upstanding log 45 of bell crank 37. The better to gripthe inside :face of core 2,.all the

pins

33, 34 and 35 are provided with knurling as shown in FIG. 2. 'I-ofacilitate manipulation of the bell cranks, the free-ends of their longer arms are bent laterally to provide

finger pieces

46, 47.

It is believed that the manner of using-themed of the present invention will now'be apparent from the foregoing description. Under .the influence ofsprings 27, 28, the movablepins 34-, 35 will'be urged outwardly to firmlyengage the inside face of core 2 of roll ,1 and :hold it-securely against rotation relative to plate l4. When it .is desired to remove thecore .2 of a depleted roll, latch 22 is disengaged from groove 26 on. shaft=l3 to allow plate 4 to be dismounted. To release the core, the operator grasps

finger pieces

46, 47 andurges them toward each other, rocking bell crank counterclockwise and .bell crank 37 clockwise as viewedin FIG. 1 to disengagepins 34, 35 from the core,- With the. operator holding the bell cranks in these respective positions, the core of the used roll may-be moved and a newroll including a core may be substituted. Thereafter, upon-the operator releasing the bell cranks, springs 27 and 28 will once again move the pins into gripping engaement withthe core of the new'roll. Plate 4 containing the new .roll is then:r.eassembled with plate 3 by placing collar 20 on hub 11,

aligning an opposed pair of the slots 21 with pin 14, and

then shifting the collar toward plate :3 untilit engages I claim:

"1. In a reel for holding a roll of web material, said reel including spaced side plates between which said roll is disposed; means for gripping said roll. to securely hold it on said reel, said gripping means including a gripping member mounted on said reel for movement toward the inner surface of said roll for gripping engagement therewith and away from said roll to release the roll, means for urging said gripping member into gripping engagement with said roll, releasing means for moving said gripping member away from the roll to release the roll, supporting means defining an axis of rotation for said reel and supporting said reel for rotation about said axis, means releasably coupling one of said side plates to the other side plate to allow said one side plate to be removed from said other side plate in a direction away from said supporting means, said gripping member and said releasing' means being carried by said one removable side plate.

, 2; In a reel for holding a roll of web material, said reel including spaced side plates between which said roll is disposed; means for gripping said roll to securely hold it onsaid reel, said gripping means including a gripping member mounted on said reel for movement toward the inner surface of said roll for gripping engagement therewith and away from said roll to release the roll, means or urging said gripping member into gripping engagement with said roll, releasing means for moving said gripping member away from the roll to release the roll, and a lever mounted on said reel, said gripping member including an elongated pin carried by said lever, said pin extending substantially parallel to the longitudinal axis of said reel. 2

3. The combination according to claim 2, wherein said lever is mounted for rotation about an axis parallel to the longitudinal axis of said reel.

4. The combination according to claim 2, wherein said lever is mounted on the outside face of one of the side plates of said reel.

5. The-combination according to claim 2, wherein said lever is mounted on the outside face of one of the side plates of said reel for rotation about an axis parallel to the longitudinal axis of said reel.

6. In a reel for holding a roll of web material, said reel including spaced'side plates between which said roll is disposed; means for gripping said roll to securely hold it on said reel, said gripping means including at least two gripping members mounted on said reel for outward movement away from the center of said reel toward the inner surface of said roll for gripping engagement therewith and for return movement toward the center of said reel to release the roll, means for urging said members into gripping engagement withsaid roll, releasing means for moving said gripping members away from the roll to release the latter, said releasing means comprising a pair of spaced opposed manually engageable members movable toward each other, and means efiective to move said gripping members away from said roll in response to movement of said manually engageable members toward each other.

7. The combination according to claim 6, wherein said means effective to move said gripping members away from said roll comprises a pair of levers, each of said levers having mounted thereon one of said gripping members and one of said manually engageable member 8. In a reel for holding a roll of web material, said reel including spaced side plates between which said roll is disposed; means detachably coupling said side plates together, latching means for maintaining said side plates coupled together, gripping means movable in a given direction to securely hold said roll on said reel, and a single spring connected between said latching means and said gripping means, said spring being efiective to operate said latching and gripping means.

9. The combination according to claim 8 wherein said latching means includes a latching member movably mounted on one of said side plates and said gripping means is mounted on the same said one side plate.

Doney et a1 Nov. 17, 1931 Herr Sept. 11, 1956