Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Reexamination Certificate
2002-09-24
2004-04-13
Crispino, Richard (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
C156S552000, C156S556000, C156S567000, C271S091000, C271S094000, C271S196000, C198S471100, C198S803500
Reexamination Certificate
active
06719031
ABSTRACT:
DETAILED DESCRIPTION OF THE INVENTION
1. Technical Field of the Invention
The present invention relates to a device for cutting out an article from a long tape and adhering the article on an adhesive tape. Further the present invention relates to a device for cutting and adhering pads having a variety of shapes, in particular, to a compact device for cutting and adhering capable of mass production of a pad without occupying a large area or volume for setting. The device of the present invention for cutting and adhering a pad is, in particular, suitable for cutting and adhering a pads for dressing, adhesive bandage and the like.
2. Prior Art
Conventionally a process of cutting out an article from a long tape and a process of adhering the article to an adhesive tape are separately carried out using different devices. Respective processes are intermittently carried out, intermittent actions are recurred rapidly, which limits the transfer rate and also a number of cum mechanisms and the like recurring intermittent action are used and mechanical vibrations and noises are unavoidable, large mechanical stresses are loaded on members of frameworks, distortion is apt to occur and a lot of works are unavoidable for check-out, maintenance and repair works. A variety of continuous production systems have been devised to eliminate such defects associated with intermittent processes. For example, a production device of adhesive bandage sequentially producing adhesive bandage by combining a number of rolls (Laid-Open Patent No. 255061/1988), a continuous production device of adhesive bandage including a process of cutting a pad and a process of sequentially adhering the pad at predetermined intervals (Laid-Open Patent No. 97453/1989), a continuous production device of adhesive bandage including a process of cutting an adhesive bandage using a rotary die cutter and a process of sequentially delivering the cut adhesive bandage to a transfer machine while holding the adhesive bandage by suction (Laid-Open Patent No. 97454/1989), a continuous method and device for adhering a pad to an adhesive film including processes comprising receiving a pad which has been cut in predetermined dimensions at a pad receiving position and broadening a spacing between adjacent pads by continuously accelerating transferring rate during continuous transfer of the pad aligned in a predetermined orientation (Laid-Open Patent No. 98557/1989), a continuous method and device for adhering pad to adhesive film including processes comprising receiving a pad which has been cut in a predetermined dimension at a pad receiving position and continuously transferring a pad at a constant rate and adhering the pad to an adhesive surface of a long adhesive tape which moves faster than the pad transfer speed (Laid-Open Patent No. 98557/1989), a continuous method and device for adhering a pad to a long adhesive film including processes comprising transferring a pad which has been cut at predetermined dimensions at a constant rate while holding the pad by sucking arranged at a spacing corresponding to a distance between adjacent pad adhering position on an adhesive film, approaching the pad to an adhesive surface of the long adhesive film moving at nearly the same rate as that of the pad, and stopping suction of the pad at the approaching position (Laid-Open Patent No. 144486/1989) and an adhesive dressing pad production module and an adhesive dressing pad production method comprising a module-type apparatus of which each module is freely detachable and maintenance is easy wherein the pad is accurately and quickly cut out and transferred to the adhesive surface of the dressing (Laid-Open Patent No. 2001-204758) are known.
Further in conventional production of dressings and adhesive bandages, to avoid complication of processes and to use materials economically, adhesive bandages were produced by adhering a long pad material tape having a width several times shorter than that of a long adhesive tape which is manufactured by coating an adhesive on a base sheet of a long tape to a central part of the long adhesive tape in a longitudinal direction of the long adhesive tape, cutting the long tape in the shape of the adhesive bandage so that the pad is positioned at a central part, or by making a pad by simply cutting a long tape and adhering the pad on adhesive surface of the adhesive bandage. Former type of the pad is known as “whole width pad”, latter method is called “cut and place method”, in this method it is possible to make the whole width pad however by making the pad width narrower than that of the adhesive tape, the pad can be surrounded by the adhesive layer. This type of pad is known as “island pad”.
PROBLEMS THIS INVENTION SEEKS TO SOLVE
The whole width pad is simple in structure and easy to manufacture and widely used in related industrial world, however contamination of pad from outside or leak of permeated body fluid from wounded part to outside is apt to occur because there is no adhesive layer in lateral sides of the pad. The island pad can be formed in various design products, however it takes comparatively long time for production and arrangement of the pad is apt to be inaccurate. On the other hand, when a pad is formed by simply cutting a long tape with a linear blade, the pad shape for mass production is limited to square or rectangle, and in the case of shapes such as round or oval shape, disposal of waste part is unavoidable, a specific blade for cutting is necessary, which increases production costs and more accuracy is needed in production processes than conventional methods, a yield ratio becomes low, a severer production process control than conventional one is demanded so that the waste does not get mixed in final product, contaminate or stick to an adhesive surface of a product, which causes the product comparatively expensive. Also because cutting of an article and adhesion of the article to an adhesive surface of an long adhesive tape are usually carried out by different devices, two or more devices must be installed and they occupy a large area or volume, and a lot of works for checkout and maintenance and also for adjustment between those devices such as timing or positioning are unavoidable. Consequently development of a device which performs both cutting of an article and adhering of the article to an adhesive surface of a long adhesive tape is desired without decreasing production efficiency when producing various shapes of article.
MEANS FOR SOLVING THE PROBLEMS
The present invention relates to a device for cutting out an article from a long tape and adhering the article to an adhesive tape comprising: a cutting roll having blade molds on the roll surface for cutting out an article by holding and pressing a long tape between the roll and an adhering roll; the adhering roll having anvils of which shapes correspond to those of the mold blades of the cutting roll and cylinders each having a shaft capable of piston action having suction mouth protrudable from the roll surface wherein the cylinder is disposed in each anvil shape; and a transfer device for an adhesive tape to which the articles are adhered, wherein the shaft is contained in the cylinder before sucking the article and when reaching predetermined position on the adhesive tape to which the article is adhered the cylinder adheres the article to the adhesive tape in protruding state while sucking the article. And also the present invention relates to a device for cutting out a pad from a long tape and adhering the pad to an adhesive tape comprising: a cutting roll having blade molds on the roll surface for cutting out a pad by holding and pressing a long tape between the cutting roll and an adhering roll; the adhering roll having a number of cylinders on the roll surface wherein respective cylinders have shafts protrudable from the roll surface and having a suction mouth for sucking the pad wherein each cylinder is disposed corresponding to each shape of the pad to be cut; and a transfer device of an adhesive tape on which the pad is adhered, wh
Crispino Richard
Hawkins Cheryl N.
Johnson & Johnson Kabushiki Kaisha
LandOfFree
Device for cutting out an article from a long tape and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for cutting out an article from a long tape and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for cutting out an article from a long tape and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3196835