EP1071628B1 - Device for transferring a film from a carrier band onto a substrate - Google Patents

Description

The invention relates to a device for transferring a film from a carrier tape on a substrate, with a housing in which a supply coil for a carrier tape coated with the film, a take-up reel for taking up the carrier tape separated from the film and one which deflects the carrier tape Application device are arranged, the application device with its one, the deflecting end of the carrier tape protrudes from the housing and around the longitudinal direction of the carrier tape led out of the housing is pivotable.

Handheld devices for transferring a film from a carrier tape to a substrate are known in various designs. The can on the film-like carrier tape attached film an adhesive film or a masking compound to cover up faulty paper Characters.

A device of the type mentioned at the outset is known from EP 0 656 308 B1. In two coils rotating in opposite directions during operation are arranged in a housing, one of which is the supply spool and the other the take-up spool forms. The carrier tape coated with the film is wound on the supply reel, the film being attached to the outside of the carrier tape. This runs from the supply spool arranged in the rear part of the housing Carrier tape over a pin-like tape guide to the application device and is redirected there via a wedge-shaped tapered application bar. Will the job bar on a substrate, e.g. B. paper, pressed and at the same time in the plane of Moves substrate, so the film detaches from the carrier tape and remains on the Stick substrate.

After the deflection of the carrier tape on the application bar, the tape is led back into the case and runs over another pen-like Tape guide on the spool core of the take-up spool, which is in the front Area of the housing is arranged.

The first mentioned tape guide for the fresh, not yet used Carrier tape is required because the supply spool is in the rear Area of the housing and the take-up reel in the front area of the Housing and two coils and the application device are arranged approximately in a straight line one behind the other. If after a larger amount of used carrier foil after a certain operating time has accumulated on the take-up spool and that on the supply spool existing share of carrier tape has become significantly lower, is due to the mentioned tape guide avoided that the unused carrier tape on returning used carrier tape and on the winding of the take-up reel scrubs and in this way damage to the film on the carrier tape as well as premature detachment of the film from the tape occurs. This is especially important with the so-called correction rollers, because there is It is necessary for the correct functioning that the faulty Character covering film completely without cracks or gaps on the Bring substrate to cover the area to be corrected completely.

A disadvantage of the known adhesive roller is the need for tape guides in the area between the unwinding point of the supply reel and the application device provided. The carrier tape is in the area of the tape guides namely, relatively kinked, with part of the film coming from the carrier film can solve.

In conventional, with a non-swiveling application device equipped devices, this disadvantage does not make itself felt in practice or only not noticeably noticeable since the film is not exposed to any further stress is. However, if, as in the case of the device according to EP 0 656 308 B1, the application device around its longitudinal axis at a relatively large angle, which can be pivoted up to 180 °, this leads to a appropriate twisting of the coated carrier tape in the area between the first tape guide and the application device. The double Strain on the film due to the tape guide and twisting to cracks in the film layer and premature detachment of parts of the Guide the film from the carrier film.

Furthermore, the publication WO-A-9712828 is a tape applicator with a pivotable application device known. This device is the Application device about an axis of rotation which is transverse to the longitudinal direction of the from the Housing out led carrier tape is pivoted to convenient use with both left and right hands enable.

From the document EP-A-0695645 is also a device for transmitting a Described film from a carrier tape on a substrate, which, however, a has non-swiveling application roll.

The invention is therefore based on the object at the beginning of a device mentioned type largely exclude the risk that the on the carrier tape applied film is damaged or prematurely removed from the carrier tape replaces.

This object is achieved by the device mentioned at the outset by Features of claim 1 solved.

According to the invention on tape guide elements for the between Supply reel and coated carrier tape running the application device waived. A kinking of the carrier tape with the described disadvantageous Consequences due to a tape guide element no longer take place. The when the application device is pivoted, twisting of the Carrier tape alone is not enough to damage the film or prematurely replace.

If the supply spool and the take-up spool are arranged one behind the other, it is further proposed that the supply spool be closer than the take-up spool is due to the order facility. In this way there is a multitude possible arrangements in which the carrier tape is self-supporting from the Supply spool to the order facility runs because it is not possible that unused carrier tape in contact with the winding of the take-up reel comes.

A particularly slim and handy version of the invention Device is reached when the two coils and the application device in the essentially lie in a line and the supply spool between the take-up spool and the application device is arranged.

Furthermore, in the mentioned embodiment, in which the supply spool and the Take-up spool are arranged one behind the other and the supply spool closer than the take-up spool is on the applicator, suggested that the film on the inside of the carrier tape wound on the supply reel is arranged and that both coils rotate in opposite directions during operation. On in this way it is completely excluded that the film of the unused Carrier tape with the used, returning into the housing Carrier tape come into contact. The opposite rotation of the coils in the Operation is found in many common designs of such handheld devices, in which the coils are directly coupled to each other, e.g. B. means Gears or a friction clutch.

But it is also possible to use gears with an intermediate gear to be provided so that both coils rotate in the same direction. In this case it does not matter which side of the carrier tape the film is attached to.

Because here is a contact of the forward and return carrier tape Coils arranged one behind the other are not possible under any circumstances. Therefore, in one Another advantageous embodiment of the invention proposed that both Coils rotate in the same direction during operation.

Another protection of the film applied to the carrier tape is reached when the unwinding point of the carrier tape from the supply reel in lies essentially on the pivot axis of the application device. In this case the unused carrier tape is only due to the indispensable twisting of the Swiveling the application device claimed, but not additionally the change of direction from the unsupported area to the area within the Applicator.

The device according to the invention can be used as a disposable device or as a refillable device Be designed device. In the latter case, it is suggested that everyone Coil is assigned to a gear that the gears for driving the connection Coils are in engagement with each other and arranged within the housing and that an interchangeable cassette can be inserted into the housing, which contains the two coils and the application device. Such a removable cassette is particularly environmentally friendly because of the amount of consumables is kept low. It is also possible with the same case too Carrier tapes of different widths and with different film material too use.

Although the device according to the invention pivots the application device by very large angles without damaging the on the carrier tape applied film is possible should have extremely large swivel angles can be avoided since the correspondingly strong twisting of the carrier tape increases could damage the film. It is therefore proposed that the application device at least one with a corresponding stop part interacting stop part to limit the swivel angle having. The swivel angle should be at least 90 °, in particular 135 ° and very particularly preferably 180 °.

To prevent the film from being accidentally placed on an unwanted one Substrate, e.g. B. the user's clothing, is preferably an in At least two positions movable part is provided, which in the first Position covers the extreme end of the application device and in the second Position of this extreme end releases. When the device is not in use, the movable part can be brought into the first position. To use the The second position is provided for the device.

The movable part preferably has a further function. It is in this Case designed as an operating element and is in rotary connection with the Application device for pivoting them about the pivot axis.

In a particularly preferred embodiment, the movable part is tubular trained, and it at least partially surrounds the application device.

Figur 1

eine perspektivische Ansicht eines erfindungsgemäßen Gerätes in Explosionsdarstellung,

Figur 2

die Ansicht nach Figur 1 aus einem anderen Blickwinkel,

Figur 3A

eine perspektivische Ansicht der Auftragseinrichtung und des Bedienungselementes des Gerätes nach den Figuren 1 und 2, wobei das Bedienungselement das äußerste Ende der Auftragseinrichtung überdeckt,

Figur 3B

eine Ansicht entsprechend Figur 3A in der Betriebsstellung des Gerätes, bei der das äußerste Ende der Auftragseinrichtung aus dem Bedienungselement herausragt,

Figur 4

eine perspektivische Detailansicht der Auftragseinrichtung und des Bedienungselementes in teilweise montiertem Zustand,

Figur 5A

das Gerät in perspektivischer Ansicht und in Ruhestellung,

Figur 5B

eine Ansicht entsprechend Figur 5A aus einem anderen Blickwinkel,

Figur 6A

eine perspektivische Ansicht des Gerätes während des Gebrauches mit der rechten Benutzerhand, wobei die am äußersten Ende der Auftragseinrichtung befindliche Auftragsleiste im rechten Winkel zu den Spulenachsen steht,

Figur 6B

eine Ansicht entsprechend Figur 6A, wobei die Auftragsleiste parallel zu den Spulenachsen ausgerichtet ist und

Figur 6C

eine Ansicht entsprechend Figur 6A, wobei die Auftragsleiste jedoch um 180° gegenüber Figur 6A verschwenkt ist und das Gerät mit der linken Hand bedient wird.

An embodiment of the invention is explained below with reference to drawings. Show it

Figure 1

2 shows a perspective view of a device according to the invention in an exploded view,

Figure 2

1 from a different perspective,

Figure 3A

2 shows a perspective view of the application device and the operating element of the device according to FIGS. 1 and 2, the operating element covering the outermost end of the application device,

Figure 3B

3A in the operating position of the device, in which the outermost end of the application device protrudes from the operating element,

Figure 4

a detailed perspective view of the application device and the control element in a partially assembled state,

Figure 5A

the device in perspective view and at rest,

Figure 5B

5A is a view corresponding to FIG. 5A from a different point of view,

Figure 6A

3 shows a perspective view of the device during use with the right hand of the user, the application bar located at the extreme end of the application device being at right angles to the coil axes,

Figure 6B

a view corresponding to Figure 6A, the application bar is aligned parallel to the coil axes and

Figure 6C

a view corresponding to Figure 6A, but the application bar is pivoted by 180 ° compared to Figure 6A and the device is operated with the left hand.

In all drawings, the same reference numerals have the same meaning and may therefore only be explained once.

The device 1 shown in Figures 1 and 2, the parts of which in this example consist of plastic, has a housing 33 with a first housing half 22, a second housing half 23, one partially protruding from the housing Application device 6, the outstanding part of the application device 6 partially assembled within an operating element 26 is arranged.

Within the two housing halves 22, 23 are a supply spool 2 and one Winding spool 3 arranged for a carrier tape 5. It's on the supply spool not yet used carrier tape 5 and on the take-up reel 3 that used Carrier tape 5 wound up. The carrier tape 5 is, for example, with coated with a correction film and is from the supply reel 2 from the Housing deflected around the application device 6, the film 4 on a substrate 32 (Figures 6A to 6C) is dispensed, and finally returned to the housing to the take-up reel 3.

The supply spool 2 consists of an annular coil core 13 with a Side wall 12. The annular coil core 13 is made of an elastically flexible Pins 17 existing hub 16 is placed and the pins 17th held frictionally. The pins 17 form the part of a gear 18, which with its hub 16 is rotatably placed on a ring 20, which of the Inner wall of the first housing half 22 projects into the interior of the housing 33 and is integrally connected to the first housing half 22.

The take-up spool 3 also consists of an annular spool core 15 with a side wall 14 which, in contrast to the side wall 12 of the supply spool 2 is designed as a gear 19. The coil core 15 of the take-up reel 3 is rotatably arranged on a ring 21, which is also integral with the first housing half 22 is connected and from the inner wall inwards the housing 33 protrudes.

In the assembled state, the gears 18, 19 are arranged such that their Interlock teeth. If by unwinding the carrier tape 5 of the supply reel 2 rotates the gear 18, therefore the take-up reel 3 rotated so that the used carrier tape 5 at a corresponding The tape guide is wound on the take-up reel 3.

During use, the diameter of the wrap on the Supply spool 2 smaller and the diameter of the roll on the take-up spool 3 bigger. So that the carrier tape 5 always remains taut without a strong tape tension occurs, it is necessary that the ratio of the speeds of Supply reel 2 and take-up reel 3 reversed as the ratio of the respective Winding diameter is. For this purpose there is a between the coils 2 and 3 known slip clutch attached. It exists in the present Example from the clamp connection between the inside of the annular Coil core 13 and the elastically flexible pins 17 of the hub 16th

The application device 6 protrudes from the housing 33 through an opening 34 out and consists of a flat intermediate piece 7 with a band guide, which ends on a job bar 8 with a sharp edge. The intermediate piece 7 is arranged within a half hollow cylinder 9 and firmly with it connected. On the outside of the half hollow cylinder 9 are annular circumferential, projecting webs 10 arranged in the assembled state of the Insert device 1 into grooves 11 on the inside of opening 34 and are freely movable relative to these grooves 11. In this way, the Application device 6 relative to the housing 33 about the pivot axis A-A (Figures 1 and 2) are pivoted. The axis A-A runs essentially in the direction of movement of the carrier tape 5 in the area between the Supply spool and the order bar 8 and in the area between the order bar 8 and the take-up reel 3.

The pivoting movement of the application device 6 about the axis A-A is in both directions by stop parts 39 (Figures 2 and 4) on the inside of the two housing halves 22, 23 and one on the outside of the half Hollow cylinder 9 attached, corresponding to the stop parts 39 Projection 40 (Figures 2, 3A and 3B) limited. Here is the angular distance chosen between the two stop parts 39 so large that the pivot angle for the application device 6 can be more than 90 °. In the present Embodiment are the stop parts 39 diametrically opposite, so that the Application device 6 is even pivotable through an angle of 180 ° and the film 4 applied to the carrier tape 5 in opposite directions the substrate 32 can be transferred.

It is within the scope of the invention that the application device 6 rotates freely is mounted within the opening 34 of the housing 33. The order bar 8 the application device 6 then automatically adjusts itself to the position of the Substrate 32 on. However, it is also possible to apply the application device 6 in this way to clamp the opening 34 so that when the application device 6 rotates compared to the housing 33 frictional forces must be overcome. To For this purpose, it is advantageous to use one that interacts with the application device 6 Provide control element 26. The control element 26 has at one end of a half hollow cylinder 27, which with half Hollow cylinder 9 of the application device 6 in the assembled state Solid cylinder forms and in this way the drive connection between the Control element 26 and the application device 6 produces, in particular 3A and 3B. The control element 26 is hollow and has on the other side an opening 28 through which in assembled state, the order bar 8 of the order device 6 can protrude. With the help of the ring-shaped, with ribbed handle part 29, the control element 26 and thus the application device 6 is easily rotated into the desired position become.

The half hollow cylinder 27 of the operating element 26 has axially extending ones Cut surfaces 41 recesses 42, in the assembled State engage on one side bevelled projections 43, which extend from the axially Cut surfaces 44 of the half hollow cylinder 9 of the application device 6 stick out. The cut surfaces 41 of the operating element 26 are on the Tapered ends so that the control element 26 easily into the opening 34th of the housing 33 can be pushed, the beveled ends of the Cut surfaces 41 over the bevelled projections 43 of the application device 6 slide until the projections 43 snap into the recesses 42. Since the Recesses 42 in the axial direction are longer than the projections 43, that is Operating element 26 is axially displaceable relative to the application device 6. Therefore, the control element 26 from the operating position, in which it is pushed into the housing 33 (FIGS. 3B and 4) and the application bar 8 of the application device 6 protrudes from the opening 28 in the direction of Arrow symbol 38 (Figure 3B) to the outside in the rest position (Figures 3A, 5A and 5B) move axially, in which the application bar 8 is completely within of the control element 26 is located. In this state it serves Operating element 26 as a protective cap for the application bar 8 Application device 6 when the device 1 is not in use. It will prevents the adhesive or correction film 4 from being accidentally removed from the Carrier tape 5 on an unwanted substrate, e.g. B. the clothes of the User, is transferred.

The installation of the device is explained below. For this, the supply spool 2 placed on the gear 18 and clamped with the hub 16. The Carrier tape 5 is guided around the application device 6. The supply spool 2 together with the gear 18 and the take-up reel 3 are on their respective rings 20, 21 forming the axes of rotation within the first Half of the housing 22 is attached, and the application device 6 is in the opening 34 laid. The carrier tape 5 is between the unwinding point Supply spool 2 and the intermediate piece 7 of the application device 6 are self-supporting, while the carrier tape 5 between the applicator 6 and the Winding reel 3 is guided over a tape guide pin 35. Eventually the second equipped with projecting pins 24 on the inside Housing half 23 placed on the first housing half 22 and thereby clamped that the pins 24 inserted into corresponding openings 25 and be clamped. Finally, the control element 26 on the Application device 6 pushed into the opening 34 of the housing 33.

Both housing halves 22, 23 each have a recess 31 for the Thumb 36 of the (left- or right-handed) user. The second Housing half 23 also has a through opening 30 through which the User can see how much coated carrier tape 5 is left is present on the supply spool 2.

The point at which the carrier tape 5 is unwound from the supply spool (the "unwinding point") is essentially colinear with the pivot axis A-A the application device 6. Between the supply reel 2 and the application device 6 is dispensed with a tape guide according to the invention, so that the Application device 6 is pivotable over a large angle. In the present Embodiment can order device 6 without difficulty be pivoted about 180 ° so that the device 1 in two opposite Directions, namely to the right (Figure 6A) and to the left (Figure 6C) used can be and therefore for both the right-handed and the left-handed Use is suitable. The device 1 can also in between these two layers lying position are used, as z. B. in Figure 6B is shown.

In the present embodiment, the carrier tape 5 is with a correction film 4 coated with which handwritten or printed characters 37 can be covered.

The danger that the carrier tape on an exceptionally not tightly tensioned 5 applied film 4 on parts mounted inside the housing 33 scrubs and is damaged in this way is in this embodiment characterized in that on the one hand the supply spool 2 very close to the Application device 6 is attached and on the other hand, the carrier tape 5 such is wound on the supply spool 2, so that the film 4 to the core 13 of the Supply spool 2 is directed.

The invention is of course not limited to this embodiment. So can within the scope of the invention, the two coils 2, 3 and the application device 6 parts of an inserted and replaceable in the housing 33 Be a cassette. In this case, the gears 18, 19 can be fixed in one of the Halves of the housing 33 may be attached. Furthermore, the two Coils 2, 3 not - as in the exemplary embodiment - one behind the other, but next to one another to be appropriate.

LIST OF REFERENCE NUMBERS

1

device

2

supply spool

3

up reel

4

(Glue or correction) film

5

carrier tape

6

applicator

7

Intermediate piece with tape guide

8th

applicator strip

9

half hollow cylinder (of 6)

10

Stege

11

groove

12

Drop side (of 2)

13

annular coil core (of 2)

14

Dropside (of 3)

15

annular coil core (of 3)

16

hub

17

pen

18

gear

19

gear

20

ring

21

ring

22

first housing half

23

second housing half

24

pen

25

opening

26

Control element, part

27

half hollow cylinder (of 26)

28

opening

29

handle part

30

continuous opening

31

recess

32

substratum

33

casing

34

Opening (in housing 33)

35

Tape guide post

36

thumb

37

character

38

arrow icon

39

stop part

40

head Start

41

axially running cutting surface (of 27)

42

recess

43

Projection, beveled

44

axial cutting surface (of 9)

A-A

swivel axis

Claims (10)

1. Device (1) for the transfer of a film (4) from a carrier strip (5) to a substrate (32), comprising a housing (33), in which a storage spool (2) for a carrier strip (5) coated with the film (4), a winding-up spool (3) for receiving the carrier strip (5) separated from the film (4) and an applicator device (6) deflecting the carrier strip (5) are arranged, wherein the applicator device (6) projects by an end (8) thereof, which deflects the carrier strip (5), out of the housing (33) and is pivotable on a pivot axis (A-A) about the longitudinal direction of the carrier strip (5) led out of the housing (33), wherein the storage spool (2) and the winding-up spool (3) are arranged one behind the other, characterised in that the storage spool (2) lies closer to the applicator device (6) than the winding-up spool (3), that the point of unwinding of the carrier strip (5) from the storage spool (2) lies substantially on the pivot axis (A-A) of the applicator device (6) and that the carrier strip (5) runs in unsupported manner from the storage spool (2) to the applicator device (6).
2. Device according to claim 1, characterised in that the two spools (2, 3) and the applicator device (6) lie substantially on a line and the storage spool (2) is arranged between the winding-up spool (3) and the applicator device (6).
3. Device according to claim 1 or 2, characterised in that the film (4) is arranged at the inner side of the carrier strip (5) wound up on the storage spool (2) and that the two spools (2, 3) rotate in opposite sense in operation.
4. Device according to claim 1 or 2, characterised in that the two spools (2, 3) rotate in the same sense in operation.
5. Device according to one of the preceding claims, characterised in that a gearwheel (18, 19) is associated with each spool (2, 3), that the gearwheels (18, 19) are disposed in engagement with one another for drive connection of the spools (2, 3) and are arranged within the housing (33) and that an exchange cassette, which is insertable into the housing (33) and which contains the two spools (2, 3) and the applicator device (6), is provided.
6. Device according to one of the preceding claims, characterised in that the applicator device (6) comprises at least one abutment part (40), which co-operates with a corresponding abutment part (39), for limitation of the pivot angle.
7. Device according to the preceding claim, characterised in that the pivot angle is limited to a value of at least 90°, particularly 135° and more particularly preferably 180°.
8. Device according to one of the preceding claims, characterised in that a part (26) movable into at least two positions is provided, which part in the first position covers the outermost end of the applicator device (6) and in the second position frees this outermost end.
9. Device according to the preceding claim, characterised in that the movable part (26) is constructed as a control element and is disposed in rotational connection with the applicator device (6) for pivotation thereof about the pivot axis (A-A).
10. Device according to claim 8 or 9, characterised in that the movable part (26) is formed to be tubular and at least partially encloses the applicator device (6).

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