JP2005298204A - Pressure sensitive adhesive tape cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive tape cuter, unwinding a pressure sensitive adhesive double coated tape with released paper to a required length and cutting the same. <P>SOLUTION: In this cutter, a tape reel 8 in which the pressure sensitive adhesive tape 3 is wound in a multi-layer is held on a tape holder 6 to be unwound, on the unwinding side of the pressure sensitive adhesive tape 3, tape guide rollers 1, 2 provided with the peripheral surface to which the pressure sensitive adhesive surface of the unwound pressure sensitive adhesive tape is stuck, are disposed to rotate following up with the movement in the short width direction of the pressure sensitive adhesive tape 3, and further on the moving forward side of the pressure sensitive adhesive tape 3, a cutter blade 5 cutting into the thickness surface of the tape 3 in the state where the tape adheres to the peripheral surfaces of the tape guide rollers 1, 2 is disposed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an adhesive tape cutter that unwinds and cuts an adhesive tape typified by a double-sided adhesive tape with release paper to a required length.

  Conventionally, there has been known a tape reel in which a double-sided pressure-sensitive adhesive tape with release paper bonded to one side is wrapped in a roll to protect the adhesive surface and adhesive strength of the adhesive tape and to facilitate unwinding during use. When using the tape, unwind the adhesive tape from the tape reel by hand, cut the required length with scissors, adhere the adhesive surface without the release paper attached to the adhesive surface, and then peel the release paper. However, it takes time and effort to perform a series of operations such as tape unwinding, cutting with scissors, adhesion, and peeling of the peeling tape. Although it is convenient if there is an appropriate adhesive tape cutter, the double-sided adhesive tape has a thickness, and it is difficult to apply a conventional single-sided adhesive tape cutter, and its development is desired.

  The present invention provides an adhesive tape cutter that drastically improves the above problems. This cutter holds a tape reel in which adhesive tapes are wound in a tape holder in a tape holder so that the tape reel can be unwound, and has a peripheral surface on which the adhesive surface of the unwinding adhesive tape adheres on the side wound with the adhesive tape. A cutter blade that has a tape guide roller that rotates following the movement in the short width direction, and further cuts into the thickness side of the tape under the adhesion of the tape to the circumferential surface of the tape guide roller on the moving advance side of the adhesive tape It has the composition which arranged.

  One adhesive surface of the adhesive tape is adhered to the peripheral surface of the guide roller and can be cut and cut into the cutter blade while stabilizing the cutting posture with respect to the cutter blade, making it easy to work with a thick double-sided adhesive tape with good workability Can be cut. It can also be applied as a thin adhesive tape cutter and enjoy the same effect.

  An embodiment of an adhesive tape cutter according to the present invention will be described in detail with reference to FIGS. As shown in FIG. 1, the tape holder (6) has a reel (8) on which the adhesive tape (3) is rewound so as to be unwound. For separation, a reel (8) in which a tape having a release paper (3a) bonded to one side of a double-sided pressure-sensitive adhesive tape is multiply wound is held. A cutter blade (5) is provided near the front end of the tape holder (6) in the unwinding direction, and the blade edge (4) is arranged upward. A guide roller (1) (2) that rotates freely just above the cutter blade (5) is juxtaposed at a slight distance so that the guide roller (1) (2) is supported rotatably as shown in FIG. An annular groove (9) is formed in the outer peripheral surface of the cutter blade, and the cutting edge (4) of the cutter blade is received in the annular groove (9). The annular groove (9) facilitates the movement of the adhesive tape in the short direction. As shown in FIG. 3A, a stopper (7) for applying pressure braking is provided on the inner surface of the tape reel (8).

Hereinafter, the operation will be described in order to clarify the configuration.
As shown in FIG. 2, the guide roller (1) is twisted while twisting the adhesive tape (3) approximately 90 ° in the short direction, that is, twisting to a posture that is substantially perpendicular to the line connecting the centers of the rollers (1) and (2). ) Unwind directly above (2). As shown in FIG. 3, a cantilevered support piece (10) that can be elastically displaced inward and outward is formed by a part of an inner ring (10) provided in a holder to which a tape reel (8) is externally fitted. A stopper (7) is provided integrally with the stopper (7), and the protrusion (11) of the stopper (7) protrudes outward from the free end of the support piece (10). When the stopper (7) is pressed from the inside to the outside, the protrusion (11) is pressed and brought into contact with the inner peripheral surface of the tape reel (8) to brake the rotation of the reel (8).

  After the tape is unwound, the next cutting operation is performed while braking the unwinding by the stopper (7). That is, as shown in FIG. 3, the rotation of the reel (8) of the adhesive tape unwound directly above the guide rollers (1) and (2) is pressed and braked by the stopper (7) in the direction of the arrow, and the adhesive tape (3) is It is introduced by hand between the peripheral surfaces of the guide rollers (1) and (2) from the short side direction, and the tape (3) while stabilizing the posture by adhering one adhesive surface of the tape to the peripheral surface of the roller (1) Is sandwiched between the rollers (1) and (2), and the rollers (1) and (2) are rotated toward the cutting edge (4) of the cutter blade (5) while rotating following the tape movement. As shown in FIG. 4, the tape (3) is further lowered and cut into the cutting edge (4) of the cutter blade (5) while continuing to adhere to the guide roller (1). As shown in FIG. 5, the guide rollers (1) and (2) are passed to complete the cutting.

  As shown in FIG. 7, even in the case of one guide roller (1), it can be cut by the same operation as described above. That is, one adhesive surface of the adhesive tape (3) moves in the direction of the arrow while adhering to the guide roller (1) on the circumferential surface, and can be cut and cut into the cutter blade (4) of the guide blade (5). The cutter is effective as a cutter for a double-sided pressure-sensitive adhesive tape with release paper in which the release paper is bonded to one side of the double-sided pressure-sensitive adhesive tape, but can also be used for a single-sided pressure-sensitive adhesive tape having no release paper.

  A pair of struts (12) are erected in parallel at the front end of the holder in the tape unwinding direction, and the rollers (1) and (2) are pivotally attached to the upper ends of the struts (12). A blade mounting base (5 ') is provided integrally with the support column (12) below the rollers (1) and (2). The blade mounting base (5') is shaped like an inverted V, and the cutter blade (5) is inserted and fixed. Moreover, it has a slope (13) on the boundary of the shoreline which becomes a watershed, and the tape (3) after cutting is made smooth by this slope (13). Alternatively, immediately after the tape is cut into the cutter blade (5), the cut of the tape (3 ') that has not been cut is guided by the slope (13), and the blade (5) is cut while the cut is opened. To improve cutting performance.

    It is the front view, side view, and bottom view of a partly missing tape cutter according to the present invention.     It is an adhesive tape unwinding partial cross section, a front view A, and a partially enlarged view B.     It is tape cutting initial stage partial sectional view A and a partial enlarged view B which show an Example.     It is the partial sectional view A and the partial enlarged view B which show the adhesive tape cutting middle.     It is the partial sectional view A and the partial enlarged view B which show completion of adhesive tape cutting.     It is a partially expanded sectional view of the upper part of a cutter blade, and a side view.     It is a partially expanded view which shows an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guide roller 2 Guide roller 3 Adhesive tape 3 'Adhesive tape 3a Release paper 4 Blade edge 5 Cutter blade 5' Blade mounting base 6 Tape holder 7 Stopper 8 Reel 9 Guide roller annular groove 10 Inner ring 11 Protrusion 12 Strut 13 Slope

Claims (3)

  A tape reel in which multiple adhesive tapes are wound in a tape holder is held so that it can be unwound, and the adhesive surface of the unwinding adhesive tape has an adhesive peripheral surface on the adhesive tape unwinding side, and in the width direction of the adhesive tape. A tape guide roller that rotates following the movement of the tape is arranged, and a cutter blade that cuts into the thickness surface of the tape under the adhesion to the tape guide roller peripheral surface of the tape is arranged on the movement progress side of the adhesive tape. Adhesive tape cutter characterized by.   2. The pressure-sensitive adhesive tape according to claim 1, wherein two tape guide rollers are arranged side by side, and the pressure-sensitive adhesive tape adheres to one peripheral surface of the tape guide roller and is cut by the cutter blade. Cutting device.   2. The pressure-sensitive adhesive tape cutter according to claim 1, further comprising means for pressing and contacting the inner surface of the tape reel to brake the rotation.

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