CA1258844A - Means for pulling tape from a reel - Google Patents

Means for pulling tape from a reel

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Publication number
CA1258844A
CA1258844A CA000483959A CA483959A CA1258844A CA 1258844 A CA1258844 A CA 1258844A CA 000483959 A CA000483959 A CA 000483959A CA 483959 A CA483959 A CA 483959A CA 1258844 A CA1258844 A CA 1258844A
Authority
CA
Canada
Prior art keywords
take
leader
tape
reel
aperture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000483959A
Other languages
French (fr)
Inventor
Friedrich R. Hertrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Digital Equipment Corp
Original Assignee
Digital Equipment Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Digital Equipment Corp filed Critical Digital Equipment Corp
Priority to CA000483959A priority Critical patent/CA1258844A/en
Application granted granted Critical
Publication of CA1258844A publication Critical patent/CA1258844A/en
Expired legal-status Critical Current

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  • Adhesive Tape Dispensing Devices (AREA)

Abstract

Means for Pulling Tape from a Reel Abstract of the Disclosure The present arrangement includes a first tape leader which can be readily and automatically coupled to a second tape leader. In a preferred embodiment the first tape leader is connected to be wound on a take up reel while the second tape leader is connected to a tape to be pulled from a supply reel. The first tape leader has one end formed into a mushroom like tab with a supporting stem. The second tape leader has a locking aperture at one end thereof which is proportioned so that a wide section thereof can fit over said mushroom like tab while d narrow section thereof will accept the stem but block passage of the mushroom tab therethrough. Accordingly when the tab is passed through the wide section and the leader is moved (pulled) toward the narrow section of the locking aperture, the tab and part of the stem become locked in the narrow section. Hence the leaders are locked, or buckled, to enable the first tape leader to pull the second leader. The first and second tape leaders each have a smoothing aperture therein which provides d means to accept the bumps created by buckling the tab into the locking aperture so that the wrapped around leaders are in a smooth configuration when pulling a tape.

Description

:~25~38~
Background In tape handling devices it is necessary to have a reel which ;s "taking up," or winding, the tape which i5 being pulled from a supply reel.
Yery often, in the prior art, the take up reel and the supply reel are lnterchangeable, depending on whieh way the tape is being driven. In such an arrangement both reels are often located in one housing, a cassette, and there is no need to "start," or load, a tape onto a take up reel.
However there are some applications in the prior art where the supply reel is provided as an entity unto itself and the tape thereon is pulled therefrom by an "empty" take up reel. A film on a motion picture projector is a typical example of the last mentioned prior art arrangement. Other æa~

'` ;lZ~S~ 4 uses of this kind are well known. In the prior art, with such arrangements, there has always been a certain amount of human factor involveci. For instance in a movie projector arrangement, the film is threaded along a group of sprocketed drivers and idlers.
In some other arrangements the tape is pulled from the supply reel and "grabbed" by a vacuum port on the -take up reel. In another arrangement the tape is pulled from the supply reel and hand loaded into a take up reel whereat there is a sheath, which, in response to movement of the take up reel, operates to squeeze the tape and hold it in position while the tape winds on itself.
The present arrangement provides two tape leaders which are designed to be automatically~ and readily, locked, or buckled, together. In my United States Patent No. 4,662,049, issued on May 5, 1987, I teach and claim a mechanism to be used with the two tape leaders described and claimed in the present patent application.
Summaxy According to one aspect of the present invention there is provided means for enabling a take up reel to pull tape from a supply tape reel comprising in combination: take up leader means to be coupled to said take up reel, said take up leader means having first and second ends and formed to have an enlarged section supported by a relatively narrow stem section at said first end, said take up leader means further formed to have a first smoothing aperture therein which first smoothing aperture lies between sald first end and said second end such that when B said take up leader means is wrapped around said take up reel said stem section lies substan-tially in said first smoothing aperture ~25~ 4 and said take up leader further formed to have a locatiny aperture disposed in close proximity to said first end whereby in response to a tool being inserted in said locating aperture said enlarged section can be held in position to be passed through a locking aperture and said take up leader further Eormed to have a securing aperture located in close proxirnity to said second end whereby said take up leader can be readily secured to said take up reel;
supply tape leader means to be connected to tape on said supply tape reel, said supply tape leader means having first and second ends and formed to have a locking aperture at said first end, said supply tape leader means further formed to have securing means at said second end to be secured to said tape on said supply tape reel, said locking aperture formed to have a first section which is wide enough to pass over said enlarged section while being further formed to have a narrow section which can accept said stem section while blocking passage of said enlarged section there-through whereby in response to passing said enlarged section : through said first section of said locking aperture and moving said enlarged section toward said narrow section, said stem : 20 section and said enlarged section become loc]ced with said narrow section, said supply tape leader means further formed to have a second smoothing aperture therein disposed between said locking aperture and said second end of said supply tape leader means whereby when said supply tape leader means is wrapped on said take up reel around said take up leader means said enlarged section lies substantial]y in said second smoothing aperture to effect a smooth wrapping of said supply tape leader means and said talce up leader means when tape is pulled from said supply tape reel onto said take up reel..

; - 3 ..

~l2S8~4 According to another aspec-t of the present lnvent.ion there is provided means or enabling a take up reel to pull tape along a path from a supply tape reel, comprising in combination:
a take up leader means to be coupled to said take up reel; said take up leader having first and second ends; an enlarged section supported by a relatively narrow stem section formed on said fi.rst end of said take up leader means; securing means on said take up leader means positioned pro~imate to said second end of said take up leader means whereby said take up leader méans can be secured to said take up reel; supply tape leader means to be connected to said tape on said supply tape reel; said supply tape leader ; having first and second ends; means for securing said second end of said supply tape leader means to said tape on said supply tape reel; a lockiny aperture formed in the first end of said supply tape leader means; said locking aperture having a first portion adapted to permit the passage of said enlarged section there-through and having a second portion adapted to accept said stem section while preventing passage of said enlarged section there-through such that, upon passage of said enlarged section through said first portion of said locking aperture and then upon movement of take up leader means relative to said supply tape leader means to move said enlarged section and stem section toward said second portion, said stem section and said enlarged section become locked with said second portion; and locating means whereby, in response to means for positioning, said supply tape leader means and said take up leader means are oriented substantially along said predetermined portion such that said enlarged section of said take up leader means passes through said locking aperture upon - 3a~

:

~ 34~

relative movement of said supply tape leader means with said take up leader means.
~ he objects and features of the presen-t invention can be better understood ln view of the following description taken in conjunction with the drawings, wherein:
Figure 1 depicts the enlarged tab of the first leader being initially moved through the wide section of the locking aperture;
Figure 2 shows the relationship of the enlarged tab as it moves to be locked by the narrow section;
Figure 3 shows the enlarged tab in the locked position in the narrow section of the locking aperture; and Figure ~ is a side, partially cross-sectioned, view of the two leaders wrapped on a take up reel.
Consider Figure 1. In Figure 1 there is shown a tape leader 11 which is broken into sections to simplify the drawing.
~: Actually the leader 11 is one continuous piece of material from the enlarged tab 13 to the end 15.

'~;
,~ ~!., ' - 3b -~ 2S1~
As can be seen in Figure 1, one end of the tape leader 11 is for~ed into an enlarged tab 13 which is supported by a stem portion 17. The enlarged tab in a preferred embodiment is shaped to closely resemble a mushroom. Other shapes could be used.
In close proximity to the enlarged tab 13 there is formed a locating aperture 19. The locating aperture 19 is used to enable a tool (such as the type mentioned in my corresponding application, above) to be inserted therein so that the enlarged tab 13 can be moved into a position to be readily (and automatically) pushed through the locking aperture 21 of the supply reel leader 23. Also within the take up reel leader 11 there is formed a first smoothing aperture 25. ~hen the enlarged tab 13 is in the locked position, as shown in Figure 3, the stem 17 bulges out from the supply reel tape leader 23. ~he bump resulting from the above described bulging occurs in the region 27 (Figure 3) of the tape leader 23, but away from viewer looking at Figure 3. In addition when the enlarged tab 13 is in the locked position, as shown in Figure 3, the enlarged tab 13 extends out from locking aperture 21, toward the viewer looking at Figure 3. The bump resulting at section 27 fits into the smoothing aperture 25 ~hen the take up reel leader 11 is wrapped around the take up reel.
Finally there is formed a securing aperture 29 formed in close proximity to the second end 15 of the tape leader 11. The securing aperture 29 per~its the leader 11 to be fastened to the take up reel so that the tape leader 11 moves with the take up reel.
As can be further gleaned from Figure 1 the locking aperture 21 is formed to have a wide section through which the enlarged tab 13 can pass.
In addition the locking aperture 21 has a narrow section 31. The narrow section 31 is wide enough to permit the stem 17 to pass therethrough but is narrow enough to block the enlarged tab 13 from passing therethrough. In the tape leader 23 there is also formed a smoothing aperture 33. ~s mentioned above the enlarged tab 13 extends away ~rom locking aperture when ~L~S~
the two leaders are locked as ~hown in Figure 3. The smoothing aperture 33 , ~ ~ , accepts the enlarged tab 13 when the two leaders are wrapped around the take up reel. The foregoing is better appreciated from Figure 4 which will be discussed hereinafter.
If we examine Figures 1, 2 and 3 the lock up procedure can be readily understood. In Figure 1 the initial position is shown where the enlarged tab 13 is located opposite the wide portion of the locking aperture 21.
The enlarged tab 13 is pushed (by a cam or otherwise) well into the locking aperture 21. Thereafter, as shown in Figure 2, the take up reel leader is pulled in the direction of roitation of the take up reel. To say it another way the tab 13 is moved toward the narrow section 31. In this intermediate step the extensions 35 and 37 slide over the sides of the locking aperture near the narrow section 31 and hence the tab 13 becomes locked in. As the tape leader 11 is moved further in the dirèction of rotation of the take up reel the tab 13 becomes firmly locked with the leader 23 as depicted in Figure 3.
Figure 4 shows a side view, partially sectionalized, of the two leaders wrapped around the take up reel 39. In Figure 4 the aperture 29 is shown secured to a finger 41. If the leader 11 is followed around the wrapped position the smoothing aperture 25 can be seen. As can be recognized in Figure 4 the bump created by the stem 17 (as described above) is shown fit~ing into the smoothing aperture 25. If the tape leader 11 is followed around the second layer, the extension of the tab 13 into the locking aperture 21 becomes apparent. If the leader 23 is followed around becoming layer 3 the smoothing aperture 33 is recognized. As can be seen in Figure 4, the extension, or bump, formed by the tab 13 fits into the smoothing aperture 33. As can be gleaned from Figure 4 the tw~ leaders 11 and 23 are wrapped around the take up reel 39 in a smooth fashion.
As can be further gleaned from Figure 4 the tape to be pulled, tape 43 is secured to the leader 23 by adhesive material such as rubberized ~ 3~3~4 ~ esive or the like. Oth~r forms of adhesive or other forms of securing the tape 43 to the leader 23 can be used.
The present arrangemene of the two tape leaders, for~ed as described abave enables a means to pull a tape to be automatically coupled to a tape to be pulled. In a preferred embodiment the tape leaders are fabricated from a polyester material and are approximately .004 to .O10 mils thick.
Other materials and thicknesses may be used.

Claims (5)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Means for enabling a take up reel to pull tape from a supply tape reel comprising in combination: take up leader means to be coupled to said take up reel, said take up leader means having first and second ends and formed to have an enlarged section supported by a relatively narrow stem section at said first end, said take up leader means further formed to have a first smoothing aperture therein which first smoothing aperture lies between said first end and said second end such that when said take up leader means is wrapped around said take up reel said stem secton lies substantially in said first smoothing aperture and said take up leader further formed to have a locating aperture disposed in close proximity to said first end whereby in response to a tool being inserted in said locating aperture said enlarged section can be held in position to be passed through a locking aperture and said take up leader further formed to have a securing aperture located in close proximity to said second end whereby said take up leader can be readily secured to said take up reel; supply tape leader means to be connected to tape on said supply tape reel, said supply tape leader means having first and second ends and formed to have a locking aperture at said first end, said supply tape leader means further formed to have securing means at said second end to be secured to said tape on said supply tape reel, said locking aperture formed to have a first section which is wide enough to pass over said enlarged section while being further formed to have a narrow section which can accept said stem section while blocking passage of said enlarged section therethrough whereby in response to passing said enlarged section through said first section of said locking aperture and moving said enlarged section toward said narrow section, said stem section and said enlarged section become locked with said narrow section, said supply tape leader means further formed to have a second smoothing aperture therein disposed between said locking aperture and said second end of said supply tape leader means whereby when said supply tape leader means is wrapped on said take up reel around said take up leader means said enlarged section lies substantially in said second smoothing aperture to effect a smooth wrapping of said supply tape leader means and said take up leader means when tape is pulled from said supply tape reel onto said take up reel.
2. Means for enabling a take up reel to pull tape along a path from a supply tape reel, comprising in combination: a take up leader means to be coupled to said take up reel; said take up leader having first and second ends; an enlarged section sup-ported by a relatively narrow stem section formed on said first end of said take up leader means; securing means on said take up leader means positioned proximate to said second end of said take up leader means whereby said take up leader means can be secured to said take up reel; supply tape leader means to be connected to said tape on said supply tape reel; said supply tape leader having first and second ends; means for securing said second end of said supply tape leader means to said tape on said supply tape reel;
a locking aperture formed in the first end of said supply tape leader means; said locking aperture having a first portion adapted to permit the passage of said enlarged section therethrough and having a second portion adapted to accept said stem section while preventing passage of said enlarged section therethrough such that, upon passage of said enlarged section through said first portion of said locking aperture and then upon movement of take up leader means relative to said supply tape leader means to move said enlarged section and stem section toward said second portion, said stem section and said enlarged section become locked with said second portion; and locating means whereby, in response to means for positioning, said supply tape leader means and said take up leader means are oriented substantially along said predetermined portion such that said enlarged section of said take up leader means passes through said locking aperture upon relative movement of said supply tape leader means with said take up leader means.
3. Means for pulling tape according to claim 2, wherein said locating means and said positioning means cooperate to push said enlarged section through said first portion.
4. Means for pulling tape according to claim 3, wherein said locating means is a locating aperture on said take up leader means and said positioning means is a tool adapted for insertion into said locating aperture.
5. Means for pulling tape according to claim 4, further comprising: a first smoothing aperture in said take up leader means such that when said take up leader means is wrapped around said take up reel said stem section lies within said first smoothing aperture; and a second smoothing aperture in said supply leader means such that when said supply leader means is wrapped on said take up reel following said take up leader means said enlarged section of said take up leader means lies substantially in said second smoothing aperture, whereby said first and second smoothing apertures permit a smooth wrapping of said tape, said leader supply tape means and said take up leader means on said take up reel when said supply tape leader means and said take up leader means are locked together and said tape is pulled from said supply tape reel onto said take up reel.
CA000483959A 1985-06-14 1985-06-14 Means for pulling tape from a reel Expired CA1258844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000483959A CA1258844A (en) 1985-06-14 1985-06-14 Means for pulling tape from a reel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000483959A CA1258844A (en) 1985-06-14 1985-06-14 Means for pulling tape from a reel

Publications (1)

Publication Number Publication Date
CA1258844A true CA1258844A (en) 1989-08-29

Family

ID=4130705

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000483959A Expired CA1258844A (en) 1985-06-14 1985-06-14 Means for pulling tape from a reel

Country Status (1)

Country Link
CA (1) CA1258844A (en)

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