Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
1999-06-24
2001-08-14
Osele, Mark A. (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S540000, C156S577000, C156S579000, C118S076000, C118S257000, C242S160400, C242S171000, C242S588600
Reexamination Certificate
active
06273982
ABSTRACT:
The invention relates to a hand-operated appliance for transferring a film from a carrier tape to a substrate according to the preamble of claim
1
.
Hand-operated appliances of the above-mentioned type are primarily used in offices to apply a coloured, opaque or adhesive film from a carrier tape to a substrate such as paper, for example. Hand-operated appliances of this kind enable the user to apply the film very neatly and to a localised point.
DE 36 44 946 C2 discloses a hand-operated appliance for applying an adhesive film to a substrate. The hand-operated appliance consists of a casing containing a supply spool for a carrier tape coated with an adhesive film, a wind-up spool for taking up the carrier tape separated from the adhesive film, a tape guide device and an applicator device which deflects the carrier tape, can spring elastically outwards, projects out of the casing and presents the side of the carrier tape which is coated with the adhesive film to the substrate. A drive connection provided with a slip coupling is disposed between the supply spool and the wind-up spool and, as the supply spool is driven by drawing off the carrier tape, drives the wind-up spool at a rotational speed which is such that the carrier tape always remains tensioned. In order to simplify the entire refilling handling process for the user when changing the tape, the supply spool and the wind-up spool, as well as the applicator device and the tape guide device, are accommodated in an interchangeable cassette. In addition, the drive connection, which is provided entirely within the casing, comprises a so-called input and a so-called output driving pin for mounting the two spools, so that the interchangeable cassette can be positioned accurately in the casing.
The spool changing operation is simplified even further for the user in DE 37 36 357 C2. In the region of the applicator device an additional support-centring pin at the casing and a corresponding holding fixture at the interchangeable cassette ensure that the latter is correctly positioned, and a holder is also provided as a positive locking element to prevent the interchangeable cassette from turning about the support-centring pin.
The applicants' German patent application DE 42 20 712 C2 discloses a hand-operated appliance of a particularly simple and small design. The hand-operated appliance for transferring a film from a carrier tape to a substrate, with a casing, in which a supply spool and a wind-up spool for the carrier tape are rotatably mounted, and an applicator device disposed at the casing, is distinguished by a special type of drive connection between the spools. The drive connection with a slip coupling is formed as a friction drive directly between the two spools.
Starting out from the above prior art, the object of the invention is to provide a hand-operated appliance of the type initially mentioned which enables the spools to be easily replaced while being easy and inexpensive to produce.
This object is achieved by the features of claim
1
. The interchangeable cassette can easily be loaded and the carrier tape tensioned on account of the two-part construction of the applicator device, with the applicator strip being located on the casing and the tape guide device on the interchangeable cassette, and the tape guide device being formed such that it holds a part of the carrier tape ready as a loop into which the applicator strip enters when the interchangeable cassette is loaded into the casing. As the interchangeable cassette is formed in a relatively simple manner on account of the construction according to the invention, it can accordingly be produced easily and inexpensively.
In a development of the invention locking means with seats are provided in the casing of the hand-operated appliance which, when the interchangeable cassette is loaded, secure it in a first position in which the tape guide device protrudes with respect to the applicator strip, so that the applicator strip enters into the loop of the carrier tape, and which, after the interchangeable cassete has been pushed back, secure it in an end position in which the tape guide device is pushed back with respect to the applicator strip, so that the carrier tape of the loop runs over the applicator strip.
Further configurations and developments are the subject of subsequent claims.
REFERENCES:
patent: 5346580 (1994-09-01), Elges et al.
patent: 5430904 (1995-07-01), Ono et al.
patent: 6000455 (1999-12-01), Semmler
patent: 3644946 C2 (1988-05-01), None
patent: 37 36 357 C2 (1988-11-01), None
patent: 42 20 712 A1 (1994-01-01), None
patent: 08059055 A (1996-03-01), None
patent: 08175738 A (1996-07-01), None
BIC Deutschland GmbH & Co.
Osele Mark A.
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