JP2009286630A - Safety adhesive tape cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent pain and wound on a human body due to hitting of fingers, etc. of a user on a tape cutting blade by mounting a guard having a function to be no hindrance of cutting when cutting an adhesive tape on an adhesive tape cutter. <P>SOLUTION: This safety adhesive tape cutter is provided with a tape roll support part 12 for rotatably supporting an adhesive tape roll 21, and a pair of screw propellers 31 which are horizontally, rotatably and pivotally provided in the vicinities of both right and left ends of a tape cutting blade part 14 of an adhesive tape cutter body 11 constituted of a tape holding part 13 and the tape cutting blade part 14 to have twisting inclination directions of inclination downward to the left and inclination downward to the right on a right side and a left side, respectively, from the viewpoint of the front of the tape cutter body 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

    The present invention is an adhesive tape cutter that rotatably supports an adhesive tape roll, pulls out the adhesive tape from the adhesive tape roll, and can be cut to an arbitrary length by a tape cutting blade provided at the front part. The present invention relates to a safety adhesive tape cutter that is attached to an upper portion of a tape cutting blade portion so that a finger or the like is not damaged by the tape cutting blade.

    Conventional adhesive tape cutters are composed of a part that rotatably supports an adhesive tape roll on the main body, a part that holds the adhesive tape drawn to the front upper part thereof, and a cutting blade part that cuts the adhesive tape on the upper part of the front surface of the main body.

    Conventionally, the adhesive tape cutter has a tape cutting blade portion at the upper part of the front surface of the main body, and the cutting blade is exposed, so that there is a risk that the user or the surrounding people may injure a finger or the like due to carelessness or other reasons.

Therefore, in recent years, an adhesive tape cutter guard has been introduced as a safety measure for the cutting blade portion of the adhesive tape cutter. Patent Documents 1, 2, and 3 can be listed as known techniques related to the present invention.
JP 2006-290572 A JP 2007-145576 A JP 2008-195465 A

  The "tape cutter" described in Patent Document 1 is provided with a pair of arm-shaped blade edge guards that are provided so that a tape anchoring part separate from the blade can be slid up and down, and that opens and closes in conjunction with the anchoring part. Is provided on both sides of the anchoring portion, and a plate-shaped blade edge guard that moves up and down with the anchoring portion is provided in front of the blade.

    Since the above-mentioned “tape cutter” has a complicated mechanism inside the main body, the manufacturing cost is high and there is a possibility that it becomes an obstacle to popularization.

  The “tape cutting structure” described in Patent Document 2 is characterized in that a guard portion provided adjacent to the cutting blade is provided so that the tape can be pushed and retracted when the tape is cut.

  In the above-mentioned “tape cutting structure”, the guard portion provided so that the tape can be pushed and retracted at the time of cutting always opposes the upper side by the rubber ring. There is a possibility of sticking to the part and the adhesive tape may be difficult to cut.

    The “safety tape cutter” described in Patent Document 3 is characterized in that a protective device having a substantially semi-cylindrical cutout that is flexible and elastic and covers the cutting blade safely is attached.

    The above-mentioned “safety tape cutter” has a possibility that the same tape as the “tape cutting structure” described in Patent Document 2 may stick to the protective equipment, or the adhesive tape may be difficult to cut.

    In addition, Patent Documents 1, 2, and 3 are common in that the movement of a finger or the like from the front and rear direction of the main body can be protected, but the finger or the like from the upper left and right of the main body It appears that the ability to protect against movement from the cutting blade is weak.

    The present invention has been made in view of these points. The purpose of the conventional adhesive tape cutter is that the cutting edge of the tape is at the top of the front of the main unit, and the cutting edge is exposed. However, the adhesive tape does not stick to the guard or the adhesive tape is difficult to cut, and it protects against the cutting blade against the movement of the finger etc. from all directions of the front and back, left and right of the user and surrounding people There is to be able to do.

    A tape roll support portion 12 that rotatably supports the adhesive tape roll 21 and a tape holding portion 13 A tape cutting blade portion 14 of the adhesive tape cutter main body 11 that is composed of a tape cutting blade portion 14 is horizontally pivoted in the vicinity of both left and right ends. In addition, a pair of screw propellers 31 are provided in which the direction of twist-down is lower left when viewed from the front of the tape cutter body 11 and lower left.

    It is the above-mentioned adhesive tape cutter, and can be used detachably to the adhesive tape cutter as an independent instrument combined with a pair of screw propellers 31.

    As described above, the adhesive tape cutter is often used by children such as infants and elementary school students, but there is a high risk of damaging a finger or the like because the cutting edge portion 14 is exposed. However, according to the present invention, since the screw propeller 31 covers the cutting edge portion 14, the finger or the like from the upper side, and the finger propeller 31 from the horizontal direction by the tip of the screw propeller 31, Without sticking to the cutting edge part 14, it becomes possible to use the adhesive tape cutter, which is a convenient daily life item, safely and safely in various scenes of life such as work education, office work, and housework.

    Further, the present invention can be provided at low cost because of a simple structure with few components.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

    FIG. 1 is a perspective view of a safety adhesive tape cutter according to an embodiment of the present invention. 2 to 4 are perspective views illustrating the use of the present invention, the operation of the user's finger, and the behavior of the adhesive tape. FIG. 5 is an exploded perspective view of the safety adhesive tape cutter. FIG. 6 shows an adhesive tape cutter attachment according to the second embodiment of the present invention. 7 to 9 are plan views of the relationship between the adhesive tape and the screw propeller.

    As shown in FIG. 1, the adhesive tape cutter guard of the present invention includes a tape roll support portion 12 that rotatably supports an adhesive tape roll 21, and a tape holding portion 13 and a tape cutting blade portion 14 at the front upper portion of the adhesive tape cutter body 11. A pair of tape cutting blades 14 which are pivotally pivoted horizontally in the vicinity of both left and right ends, with the direction of twisting down as viewed from the front of the tape cutter main body 11 with the right side downward and the left side downward. A screw propeller 31 is provided.

  2, 3, 4, 5, 6, 7, 8, and 9, in the following order, a series of operations when using the present invention, the function of the screw propeller 31, the blade 32, and the adhesion The behavior of the tape 22 will be described.

    As shown in FIG. 2, the adhesive tape 22 is picked up by the user's thumb 41 and index finger 42, pulled out above the tape cutter body 11, and stretched to a necessary length. At this time, the adhesive tape 22 is attached to a part of the high position of the blade 32 of the screw propeller 31, and the screw propeller 31 is pivoted by being pulled out. When dragged, the right screw propeller 31 is rotated counterclockwise and the left screw propeller 31 is rotated slightly clockwise as viewed from above the tape cutter body 11. At this time, the pressure-sensitive adhesive tape 22 is slightly lowered in accordance with the twisting of the blade 32 by the rotation of the screw propeller 31, and the next blade 32 that is turned by the rotation of the screw propeller 31 is then covered on the pressure-sensitive adhesive tape 22.

    As shown in FIG. 3, the adhesive tape 22 is pulled down to cut it. At this time, the adhesive tape 22 descends according to the torsion, and then drops off from the rear end of the blade 32 of the screw propeller 31 and adheres to the tape holding part 13 and the tape cutting edge part 14 under the two screw propellers 31.

    As shown in FIG. 4, the adhesive tape 22 is cut by the tape cutting edge portion 14 as it continues to be pulled down for cutting.

    As shown in FIG. 5, the shape of the screw propeller 31 is not a reduction of the shape of the “propeller”, which is a device for converting the output of the aircraft engine into propulsive force, but promotes the output of the ship engine. A “screw propeller”, which is a device for converting to force, has a reduced shape. The reason for this is that there is less risk of pain or damage when the user's finger or the like hits, and that the screw propeller 31 is smoothly applied when the adhesive tape 22 is pulled out. The screw propeller 31 can be attached with a slight offset to the front so that the adhesive tape 22 can be easily pulled out as shown in the figure.

    FIG. 6 shows an adhesive tape cutter guard attachment 33 that is detachably attached to an adhesive tape cutter as an independent instrument combined with a pair of screw propellers 31.

    FIG. 7 shows a state where the adhesive tape 22 is pulled out and is on the screw propeller 31.

    In FIG. 8, the adhesive tape 22 is attached to a part of the screw propeller 31 at a high position of the blade 32 and pulled out as it is, so that the screw propeller 31 is pivotally pivoted. Dragged by the applied force, the right screw propeller 31 as viewed from above the tape cutter main body 11 rotates counterclockwise, and the left screw propeller 31 rotates slightly as shown by the arrow in the figure. At this time, the position of the adhesive tape 22 is slightly lowered according to the lowering of the blade 32 by the rotation of the screw propeller 31. This shows a state in which the next blade 32 that is rotated by the rotation of the screw propeller 31 covers the adhesive tape 22.

    FIG. 9 shows a state in which the adhesive tape 22 has been pulled out from the blades 32 of the screw propeller 31 due to the rotation of the screw propeller 31 as indicated by the arrow in the drawing as shown in FIG.

    When the tape dispenser body has a width of 40 mm, a height of 100 mm, a length of 220 mm, and a tape cutting blade portion having a width of 35 mm, the diameter of the screw propeller 31 is about 25 mm. The thickness of the blade of the screw propeller 31 is about 0.5 to 1.0 mm. The number of blades of the screw propeller 31 is six.

It is an external appearance perspective view of the adhesive tape cutter guard which concerns on embodiment of this invention. It is the use explanation perspective view showing the operation of the present invention at the beginning of a series of operation at the time of use of the present invention, and the behavior of an adhesive tape. It is the 2nd use explanation perspective view similarly. It is a 3rd usage explanation perspective view similarly. It is an appearance perspective exploded view of an adhesive tape cutter guard concerning an embodiment of the invention. It is an adhesive tape cutter guard attachment which concerns on the 2nd Embodiment of this invention. It is a 1st relationship top view of an adhesive tape and a screw propeller. It is a 2nd relationship top view of an adhesive tape and a screw propeller. It is a 3rd relationship top view of an adhesive tape and a screw propeller.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Adhesive tape dispenser main body 12 Tape roll support part 13 Tape holding part 14 Tape cutting blade part 21 Adhesive tape roll 22 Adhesive tape
31 Screw propeller 32 Blade 41 Adhesive tape guard attachment

Claims (2)

    Tape cutting edge part (14) of an adhesive tape cutter body (11) comprising a tape roll supporting part (12) for rotatably supporting the adhesive tape roll (21) and a tape holding part (13) tape cutting edge part (14). A pair of screw propellers (31) that are pivoted horizontally in the vicinity of both left and right ends of the tape cutter, and the direction of twisting down is the left-handed downward and the left-handed downward as viewed from the front of the tape cutter body (11). The safety adhesive tape cutter characterized by having provided.     It is the safety adhesive tape cutter according to claim 1, and can be used detachably as an independent instrument combined with a pair of screw propellers (31) according to claim 1. Adhesive tape cutter guard attachment.

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