Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1992-06-26
1994-07-05
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156530, 156577, 156579, B32B 3100
Patent
active
053264215
DESCRIPTION:
BRIEF SUMMARY
This invention relates to dispensers for adhesive tape.
Various types of dispenser are known for removing lengths of tape from a reel of adhesive tape. Many dispensers hold the tape reel securely whilst the tape is drawn out to a required length. The tape is then pressed against a toothed cutting edge to sever it from the reel. The length of tape is then applied to a surface by hand. In other tape dispensers a cutting mechanism comprising a blade is used to sever the tape. However, this can result in a degraded performance with the passage of time and can cause problems with varying tension in the wound tape.
Adhesive tapes have a wide variety of properties, both in terms of the nature of the adhesive and in terms of the tension with which the tape is wound on the reel. It is an object of the present invention to create a tape dispenser which is suitable for all types of tape and reel, regardless of winding tension.
It is a further object to provide a tape dispenser in which the cutter mechanism is not a hazard to the user.
It is also an object of the invention to provide a dispenser which delivers adhesive tape to a surface and cuts the tape without the need for any manual contact with the tape. Preferably the dispenser can be operated with one hand.
In accordance with the invention there is provided a tape dispenser for adhesive tape, comprising a housing, carriage means within the housing for mounting a reel of tape, an aperture in the housing through which the tape is arranged to be dispensed on to a surface, applicator means within the housing movable to apply the tape to said surface, and cutter means within the housing to sever the tape, wherein the cutter means is retracted when the applicator means applies the tape to said surface, and wherein at the completion of the application the applicator means in its withdrawal causes the tape to be presented under tension to the cutter means to be severed thereby.
Preferably, withdrawal of the applicator means causes the dispensed tape to be partially lifted from the said surface so that the tape is stretched between guide means at the underside of the housing and an entraining device of the applicator means.
The cutter means preferably is arranged to move substantially parallel to the said surface to which the tape is applied.
Preferably, the carriage means which carries the tape reel is displaceable within the housing towards and away from the said surface to which the tape is applied.
The tape cutting means preferably comprises a blade with a serrated edge operating in conjunction with a tape delivery means of a roller which spreads the tape onto the surface over which the dispenser moves. The use of a serrated blade perforates the tape and then splits it, thus giving an improved performance.
One embodiment of tape dispenser in accordance with the invention will now be described by way of example and with reference to the accompanying drawings, in which:
FIG. 1 is a general perspective view of the tape dispenser;
FIG. 2 is a side view of the inside of a removable cover part of the housing;
FIG. 3 is a side view of the interior of the tape dispenser showing the rest position of the tape delivery and cutting mechanism;
FIG. 4 is a view similar to FIG. 3 but showing the position of the tape delivery and cutting mechanism as the tape is applied to a surface;
FIG. 5 is a perspective view of that part of FIG. 3 which is circled;
FIG. 6 is a perspective view of that part of FIG. 4 which is circled; and,
FIGS. 7, 8 and 9 are schematic diagrams illustrating the sequence of movements of the tape delivery and cutting mechanism.
The tape dispenser comprises a two-part housing 1 moulded for example from a suitable plastics material. The two housing parts engage in nesting relationship. The one housing part, shown in FIG. 2, is a removable cover which has a side wall 3 and a peripheral wall 7 which defines the width of the housing. The peripheral wall 7 has a first aperture 9 at the upper front portion of the wall and a second aperture 11 at the forward end of the bo
REFERENCES:
patent: 3523053 (1970-08-01), Zbinden et al.
patent: 4238271 (1980-12-01), Urushizaki
patent: 4345966 (1982-08-01), Iiyama et al.
patent: 4379019 (1983-04-01), Pool
patent: 4486263 (1984-12-01), Monzo Gomez
Engel, Jr. James J.
Simmons David A.
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