JPH11226894A - Cutter for adhesive sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent paste of an adhesive sheet from sticking to a fixed blade and rotary blade in the case of cutting the adhesive sheet, so as to eliminate necessity for cleaning these blades. SOLUTION: In the case of cutting an adhesive sheet 3 set onto a fixed blade 1 by a rotary blade 2, a groove 4 is formed in a location of the fixed blade 1 corresponding to an edge point 2b in a part 2a of the rotary blade 2 lapped deepest in the fixed blade 1. In this way, when the adhesive sheet 3 is cut, even when its cut surface is positioned in the part 2a deepest lapped with the edge point 2b, since the groove 4 is formed in the fixed blade 1 corresponding to this part, paste of the cut section of the adhesive sheet 3 is prevented from sticking to the fixed blade 1. By providing felt 5 impregnated with oil, the paste can be prevented from also sticking to this slope, since silicon oil is stuck to a tip end part slope 2c of the rotary blade 2 by the felt 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive adhesive sheet cutter suitable for cutting a pressure-sensitive adhesive sheet on which at least one surface of a sheet has adhesive.

[0002]

2. Description of the Related Art As shown in FIG. 10, for example, a label piece 5 is placed on a continuous mount (liner) 52 at a predetermined interval S.
3 is attached to the label 51 at the interval S
A fixed blade 54 as shown in FIG.
When the cutting is performed by the rotary blade 55 reciprocating along the longitudinal direction of the fixed blade 54, the fixed blade 54 and the rotary blade 55 are both glue surfaces 53 inside the label piece 53 in FIG.
Since there is no contact with a, glue does not adhere to them.

However, as shown in FIG. 11, a label 61 in which the surface of the label paper 63 on which the glue 56 is adhered is continuously attached to a continuous backing paper 62 as shown in FIG.
As shown in FIG. 13, linerless labels 70 having only a continuous label paper 71 having an adhesive surface 71a on the inner side and not provided with a mount are shown in FIG. 13 at predetermined intervals as indicated by dashed lines. When cutting is performed by the fixed blade 54 and the rotary blade 55, glue tends to adhere to those blades.

[0004] That is, as shown in FIGS. 13 and 14, glue 56 is applied to the fixed blade 54 on the upper surface 54 a and the side surface 54 b of the portion corresponding to the blade edge of the rotary blade 55 by the arrow A of the rotary blade 55. It is easy to adhere as shown in the figure in the reciprocating direction shown. Further, as shown in FIGS.
5, the glue 56 is likely to adhere to the tip slope 55b near the cutting edge 55a, which is not in contact with the fixed blade 54, over the entire circumference.

[0005]

When glue adheres to a fixed blade or a rotary blade, it becomes impossible to cut an adhesive sheet such as a label or a linerless label due to the glue. Even if the label can be cut, the cut label may be stuck to the fixed blade by the glue and may not drop to a predetermined place. Therefore, conventionally, it was necessary to periodically clean the glue adhered to the fixed blade and the rotary blade, which was troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and cleans a fixed blade and a movable blade (rotary blade) even when cutting an adhesive sheet having an adhesive surface such as a label or a linerless label. The purpose is to eliminate the need for troublesome work.

[0007]

In order to achieve the above object, the present invention comprises a fixed blade and a movable blade, and the movable blade is moved to a position for cutting the adhesive sheet set at a cutting position on the fixed blade. When the movable blade is moved, a relief portion is formed at a portion of the fixed blade corresponding to the edge of the portion where the movable blade wraps deepest with respect to the fixed blade so as to prevent the blade of the movable blade from coming into contact with the movable blade. An oil-impregnated felt for adhering silicone oil is provided at least on the surface near the cutting edge and not in contact with the fixed blade to constitute the adhesive sheet cutter.

In this way, when the adhesive sheet is set at the cutting position on the fixed blade and cut by moving the movable blade, the conventional adhesive sheet cutter fixes the movable blade at the time of cutting. The adhesive sheet adhesive easily adhered to the part of the fixed blade corresponding to the blade edge of the part that wraps the blade deepest, but with this adhesive sheet cutter, the fixed blade part corresponding to the blade edge of the moving blade was Has a relief portion for preventing the blade edge of the movable blade from contacting, so that the adhesive from the adhesive sheet does not adhere to the fixed blade. In addition, since silicone oil is attached to at least the surface of the movable blade that is not in contact with the fixed blade near the cutting edge by the oil impregnated felt, it is possible to prevent the adhesive from being adhered to that surface.

Further, the moving blade is a rotary blade that reciprocates along the fixed blade, and the relief portion of the fixed blade is arranged so that the cutting edge does not contact the fixed blade over the entire moving region of the rotary blade. The groove is formed along the reciprocating direction of the rotary blade, and the oil impregnated felt moves in the reciprocating direction together with the rotary blade and does not contact the fixed blade near the cutting edge of the rotary blade, and the surface in contact with the fixed blade. You should always be in contact with Then, the relief portion formed on the fixed blade may be a simple groove formed over the entire reciprocating region of the rotary blade, so that it can be easily manufactured.

In addition, a fixed blade and a rotary blade reciprocating along the fixed blade are provided, and when the rotary blade is moved to a position where the adhesive sheet set at the cutting position on the fixed blade is cut, the rotation blade is rotated. Prevent the glue adhered to the adhesive surface of the adhesive sheet from adhering to the entire area of the moving area of the rotary blade on the portion of the fixed blade corresponding to the edge of the blade where the blade wraps deepest with respect to the fixed blade. It is preferable to provide an oil-impregnated felt that performs non-adhesive treatment and attaches silicon oil to at least the surface of the rotary blade that does not contact the fixed blade near the blade edge.

In this case, when the pressure-sensitive adhesive sheet set at the cutting position on the fixed blade is cut, the cut surface of the cut pressure-sensitive adhesive sheet has the cutting edge of the portion that wraps the deepest with the fixed blade of the rotary blade. The non-adhesive treatment is applied to the portion of the fixed blade corresponding to that position so that the adhesive adhered to the adhesive surface of the adhesive sheet does not adhere even if it moves to the position corresponding to that position. The glue of the sheet does not adhere to the fixed blade.

Further, there is provided a fixed blade and a rotary blade which reciprocates along the fixed blade, wherein the fixed blade has a part in the circumferential direction of the cutting edge of the rotary blade over the entire reciprocating region of the rotary blade. The fixed blade is disposed so as to protrude outward from the edge in the direction perpendicular to the surface of the adhesive sheet set at the cutting position of the fixed blade, and does not contact the fixed blade near the blade edge of the rotary blade and the fixed blade. An oil-impregnated felt that always comes into contact with the contacting surface and adheres the silicone oil may be provided, and the oil-impregnated felt may be moved together with the rotary blade in the reciprocating direction to constitute the adhesive sheet cutter.

With this configuration, when the adhesive sheet is set at the cutting position on the fixed blade and is cut by moving the rotary blade, the end face of the portion of the adhesive sheet cut by the rotary blade becomes a rotary blade. It is moved to the blade edge portion of the, but since the blade edge portion of the rotary blade protrudes outward from the edge in the direction orthogonal to the surface of the adhesive sheet set at the cutting position of the fixed blade, The glue exposed on the cut surface of the cut adhesive sheet does not adhere to the fixed blade side.

Further, instead of the above oil impregnated felt,
An oil-impregnated felt is provided on the rotating blade, which is always in contact with the surface of the rotating blade that is in contact with the fixed blade, and adheres the silicon oil. A concave portion may be formed over the entire circumference at a position spaced a predetermined distance toward the center of rotation to constitute the adhesive sheet cutter.

With this arrangement, when the adhesive sheet set at the cutting position on the fixed blade is cut by the rotary blade, the adhesive of the adhesive sheet contacts the fixed blade of the rotary blade at that time, and the cutting edge of the rotary blade The oil is likely to adhere to the nearby surface that does not come into contact with the fixed blade. Does not adhere.

On the other hand, on the surface of the latter, which is not in contact with the fixed blade, a recess is formed over the entire circumference at a position spaced a predetermined distance from the cutting edge toward the rotation center of the rotary blade. When the pressure-sensitive adhesive sheet is cut, the cut surface of the pressure-sensitive adhesive sheet is positioned in the recess, so that the glue of the cut surface of the pressure-sensitive adhesive sheet does not adhere to the surface of the rotary blade that does not contact the fixed blade.

Further, the range of reciprocating movement of the rotary blade with respect to the fixed blade is limited in each of the forward and backward directions, and a part of the blade edge of the rotary blade is moved from each end on both sides of the fixed blade in the reciprocating direction. Each of the adhesive sheet cutters described above is configured such that the position of the rotation center of the rotary blade is located inside each end on both sides of the fixed blade at the respective movement limits in the forward direction and the backward direction. Good to do.

In this way, even if the rotary blade reciprocates and cuts the adhesive sheet, the rotary blade is limited in the forward and backward directions, and a part of the blade is fixed blade. The glue of the pressure-sensitive adhesive sheet is deposited on the fixed blade at a position corresponding to each of the forward and backward movement limits of the rotary blade, since the position is always deviated from each end on both sides of the rotary blade in the reciprocating direction. There is no such thing.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a pressure-sensitive adhesive sheet cutter according to an embodiment of the present invention. The adhesive sheet cutter is a fixed blade 1 fixed to a fixed portion or the like of a printing apparatus, and a movable blade guided and moved along a longitudinal direction of the fixed blade 1 in a direction indicated by an arrow A in a direction indicated by an arrow A. And a rotary blade 2.

When the rotary blade 2 is moved to the cutting position of the adhesive sheet 3 set at the cutting position on the fixed blade 1 as shown by the imaginary line in FIG. Escape portion for preventing the blade edge 2b of the rotary blade 2 from contacting the portion of the fixed blade 1 corresponding to the blade edge 2b of the portion (lowest position) 2a where the rotary blade 2 wraps deepest with the fixed blade 1 Is formed over the entire area of the fixed blade 1 in the longitudinal direction. Therefore, the groove 4 is formed in the fixed blade 1 over the entire moving region of the rotary blade 2.

Further, as shown in FIG. 1, a part of the rotary sheet cutter 2 for the pressure-sensitive adhesive sheet is provided with a tip end slope 2c which is at least in contact with the fixed blade 1 near the cutting edge 2b. An oil-impregnated felt 5 to which silicon oil is attached is provided in constant contact with the upper side of the rotary blade 2.

The oil-impregnated felt 5 of this embodiment is composed of two felt members impregnated with silicone oil, and a part of the rotary blade 2 is in contact between the two felt members. By rotating, the rotary blade 2
Always contact the tip slope 2c and the surface 2d in contact with the fixed blade. The oil-impregnated felt 5 moves with the rotary blade 2 in the reciprocating direction indicated by the arrow A.

Thereby, the oil impregnated felt 5
When the rotary blade 2 cuts the adhesive sheet 3, the adhesive adhering to the adhesive surface of the adhesive sheet 3 is prevented from adhering to the rotary blade 2, and when the adhesive adheres, it is wiped off. It works to remove. The oil impregnated felt 5 may be in contact with only the tip slope 2c of the rotary blade 2.

In this adhesive sheet cutter, the adhesive sheet 3 is set at a predetermined cutting position on the fixed blade 1 as shown in FIG. The cut surface of the cut adhesive sheet 3 is located near the cutting edge 2b of the portion 2a of the rotary blade 2 that wraps the deepest with respect to the fixed blade 1.

However, the portion of the fixed blade 1 corresponding to the cutting edge 2b of the rotary blade 2 is provided with the rotary blade 2 as described above.
The cutting surface of the adhesive sheet 3 cut to the position of the deepest wrapping portion 2a as described above is formed on the fixed blade 1 because the groove 4 for preventing the blade edge 2b from contacting is formed. Since there is no contact, the glue exposed on the cut surface of the adhesive sheet 3 does not adhere to the fixed blade 1.
Therefore, the glue exposed on the cut surface of the adhesive sheet 3 at the time of cutting does not adhere to the place of the side surface 54b of the fixed blade 54 unlike the conventional adhesive sheet cutter described with reference to FIG. It is cut while being attached to the adhesive sheet 3 side.

Further, since silicon oil is attached to the inclined surface 2c of the rotary blade 2 at least near the cutting edge 2b by the oil impregnated felt 5, the inclined surface 2c
No glue adheres to the surface. Furthermore, since the groove 4 formed in the fixed blade 1 is a mere groove formed over the entire moving area of the rotary blade 2, it can be easily manufactured.

FIG. 2 is a perspective view similar to FIG. 1 showing another embodiment of the adhesive sheet cutter according to the present invention. The adhesive sheet cutter includes a fixed blade 11 and a fixed blade 1.
And a rotary blade 2 reciprocating in the direction of arrow A along the fixed blade 11. A part of the fixed blade 11 in the circumferential direction of the cutting edge 2 b of the rotary blade 2 (near the lowermost portion) is moved by the rotary blade 2. The lower side from the lower end edge 11a in the direction indicated by the arrow E perpendicular to the surface of the adhesive sheet (not shown, see FIG. 1) set at the cutting position of the fixed blade 11 over the entire area. It is arranged to protrude.

The adhesive sheet cutter always contacts the inclined surface 2c near the cutting edge 2b of the rotary blade 2 and the surface 2d in contact with the fixed blade 11, and the front surface 2e parallel to the surface 2d. Is provided, and the felt 15 is moved together with the rotary blade 2 in the reciprocating direction of arrow A.

According to the adhesive sheet cutter, the adhesive sheet 3 set on the fixed blade 11 by moving the rotary blade 2
When cutting the adhesive sheet 3 (see FIG. 1), the cut surface of the portion cut by the rotary blade 2 of the adhesive sheet 3 is moved to the cutting edge 2b of the rotary blade 2, but at the lowermost portion of the cutting edge 2b of the rotary blade 2. As described above, since the portion to be positioned protrudes downward from the lower edge 11a of the fixed blade 11, the glue exposed on the cut surface of the adhesive sheet 3 may adhere to the fixed blade 11. Absent.

The adhesive sheet cutter according to this embodiment has a portion that wraps the fixed blade 1 of the rotary blade 2 deepest, like the fixed blade 1 of the adhesive sheet cutter described with reference to FIG. Since it is not necessary to form the groove 4 corresponding to 2a, the cost can be reduced as much as the groove 4 need not be processed.

FIG. 3 is a perspective view showing an embodiment of an adhesive sheet cutter in which a part of a fixed blade is subjected to a non-adhesive treatment. FIG. 4 is a sectional view of the adhesive sheet cutter. FIG. 2 is a side view showing the configuration, in which parts corresponding to those in FIG. 1 are denoted by the same reference numerals. This adhesive sheet cutter is
When the rotary blade 2 is moved to the cutting position on the fixed blade 1 'to the cutting position of the adhesive sheet 3 set as shown in FIG. On the other hand, the glue adhered to the adhesive surface of the adhesive sheet 3 is prevented from adhering to the portion of the fixed blade 1 ′ corresponding to the blade edge 2 b of the portion 2 a that wraps deepest over the entire moving area of the rotary blade 2. A non-adhesive processing section 10 that has been subjected to a non-adhesive processing is provided. The non-adhesive processing section 10 is formed by, for example, baking and applying a non-adhesive to the fixed blade 1 ′.

In this embodiment, an oil-impregnated felt 5 for adhering silicone oil to the rotary blade 2 is provided similarly to the adhesive sheet cutter described with reference to FIG. As described above, even when the non-adhesive processing portion 10 is formed on the fixed blade 1 ′ so as to correspond to the cutting edge 2 b of the rotary blade 2,
Adhesive glue exposed on the cut surface of the adhesive sheet 3 cut by the rotary blade 2 and the fixed blade 1 ′ is fixed to the fixed blade 1 ′.
The adhesive sheet 3 does not adhere to the non-adhesive processing section 10 formed on the adhesive sheet 3, so that the adhesive sheet 3 is cut while remaining on the adhesive sheet 3 side because there is no place to attach it.

FIG. 5 is a schematic view showing an example of an oil-impregnated felt having a different shape, with a partial cross section. The oil-impregnated felt 15 ′ is formed in a shape that comes into contact only with the inclined surface 2 c of the tip of the rotary blade 2 and the surface 2 d that comes into contact with the fixed blade 11. Even if the oil impregnated felt 15 'having such a shape is used, the inclined surface 2c and the surface 2d of the tip of the rotary blade 2 are kept wet by the silicon oil by the oil impregnated felt 15' which is always in contact therewith. The glue 56 does not adhere to the adhesive sheet 3 there.

FIG. 6 is a schematic view similar to FIG. 5, showing an embodiment of a pressure-sensitive adhesive sheet cutter using a rotary blade having a different shape. This adhesive sheet cutter is provided with a rotary blade contact surface oil impregnated felt 25 that always contacts only the surface 2d of the rotary blade 2 'in contact with the fixed blade 11 and adheres the silicon oil. The recess 21 is located at a predetermined distance from the cutting edge 2b toward the rotation center O of the rotary blade 2 'on the tip slope 2c not in contact with the fixed blade 11.
Is formed over the entire circumference.

As described above, the inclined surface 2c of the tip of the rotary blade 2 '
When the recess 21 is formed in the rotary blade 2 ′,
The adhesive 56 on the cut surface of the pressure-sensitive adhesive sheet 3 ′ can be prevented from contacting the tip slope 2 c, so that the glue 56 adheres to the tip slope 2 c from the pressure-sensitive adhesive sheet 3 ′. Can be prevented.

Therefore, the glue exposed on the cut surface of the adhesive sheet 3 at the time of cutting, as shown in FIG. 13, is similar to the glue 56 attached to the tip slope 55b of the rotary blade 55 of the conventional adhesive sheet cutter. Does not adhere to
In addition, since the surface 2d of the rotary blade 2 'is coated with the silicone oil by the rotary blade contact surface oil impregnated felt 25 and becomes wet, it is possible to prevent the adhesive of the adhesive sheet 3 from adhering thereto.

FIG. 7 is a schematic view showing an example of a fixed blade having a different shape, with the rotary blade side in section. The fixed blade 31 has an inverted L-shape as viewed from the side as shown in the figure, so that the cutting edge 2b (the lowermost position) 2a of the rotary blade 2 that wraps the fixed blade 31 deepest (the lowest position) 2a) at the position of the fixed blade 31 corresponding to the cutting edge 2 of the rotary blade 2.
An escape portion 32 for preventing b from contacting is formed. Even in this case, similarly to the above-described embodiments, it is possible to prevent the adhesive of the adhesive sheet from adhering to the portion of the fixed blade 31 corresponding to the blade edge 2b of the rotary blade 2.

FIG. 8 is a front view showing still another embodiment of the adhesive sheet cutter according to the present invention. In this adhesive sheet cutter, the moving range of the rotary blade 2 with respect to the fixed blade 11 is the movement limit shown in FIG. 8 in the forward direction of arrow B and the backward direction of arrow C, respectively, and the cutting edge 2b of the rotary blade 2 Are moved from the respective ends 11b and 11c on both sides of the fixed blade 1 in the reciprocating movement direction (outside). In each of the movement limits of the rotary blade 2 in the forward direction of arrow B and the backward direction of arrow C, the rotation center O of the rotary blade 2 is set.
Are located at both ends 11b on both sides of the fixed blade 1 as shown in the figure.
11c.

According to this adhesive sheet cutter, even when the rotary blade 2 cuts the adhesive sheet by reciprocating between the arrows B and C, the rotary blade 2 is moved in the forward direction of the arrow B at that time. At the respective movement limits in the backward direction indicated by arrow C, a part of the cutting edge 2b is formed at each end 11a on both sides of the fixed blade 11 as shown in FIG.
11b is always a position outside of each.

Therefore, as shown in FIG.
When all the cutting edges 2b of the rotary blade 2 are inside the respective ends 11b and 11c on both sides of the fixed blade 11, the movement limit of the rotary blade 2 as shown in FIG. B
The adhesive sheets 6 and 6 as shown in the drawing easily accumulate at positions corresponding to the respective movement limits in the forward direction and the backward direction of arrow C. According to the adhesive sheet cutter described with reference to FIG.
Such accumulation of the glue 6 on the fixed blade 11 can be prevented.

[0041]

As described above, according to the adhesive sheet cutter of the present invention, even if the adhesive sheet having an adhesive surface such as a label or a liner-less label is cut, the adhesive sheet is fixed to the fixed blade or the movable blade. Since glue does not adhere, the trouble of cleaning troublesome fixed blades and moving blades can be saved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an adhesive sheet cutter showing an embodiment of the present invention.

FIG. 2 is a perspective view similar to FIG. 1, showing another embodiment of the adhesive sheet cutter according to the present invention.

FIG. 3 is a perspective view showing an embodiment of an adhesive sheet cutter in which a part of a fixed blade is subjected to a non-adhesive treatment.

FIG. 4 is a side view showing the adhesive sheet cutter in a partially sectional state.

FIG. 5 is a schematic cross-sectional view showing a part of an example of an oil-impregnated felt having a different shape.

FIG. 6 is a schematic view similar to FIG. 5, illustrating an embodiment of a pressure-sensitive adhesive sheet cutter using a rotating blade having a different shape.

FIG. 7 is a schematic view showing an example of a fixed blade having a different shape, with the rotary blade side being a cross section.

FIG. 8 is a front view showing still another embodiment of the adhesive sheet cutter according to the present invention.

FIG. 9 is a front view showing a state in which the adhesive of the adhesive sheet is likely to be deposited at a position corresponding to the movement limit of the rotary blade in the reciprocating direction when the movement limit in the reciprocating direction is inside each end on both sides of the fixed blade. FIG.

FIG. 10 is a front view showing an example of a label in which label pieces are pasted at predetermined intervals on a continuous mount.

FIG. 11 is an enlarged front view showing an example of a label in which label paper is continuously attached on a continuous backing paper.

FIG. 12 is a front view showing an example of continuous label paper having a glue surface inside.

FIG. 13 is a perspective view for explaining how glue easily adheres to the fixed blade and the rotary blade in the case of a conventional adhesive sheet cutter having a rotary blade that moves along the fixed blade.

FIG. 14 is a side view showing the fixed blade with the glue adhered thereto.

FIG. 15 is a side view for explaining how glue adheres to the vicinity of the cutting edge of the rotary blade shown in FIG. 13;

[Explanation of symbols]

 1, 1 ', 11, 31: fixed blade 2, 2': rotary blade (moving blade) 2a: deepest wrap portion 2b: blade edge 2c: tip slope 2d: surface 3, 3 ': adhesive sheet 4: groove (Escape part) 5, 15, 15 ': Oil-impregnated felt 6: Glue 10: Non-adhesive treatment part 11a: Lower edge 11b, 11c: End part 21: Concave part 25: Rotating blade contact surface oil-impregnated felt 32: Escape part

Claims (6)

[Claims] 1. A fixed blade and a movable blade, wherein the movable blade is moved relative to the fixed blade when the movable blade is moved to a position for cutting an adhesive sheet set at a cutting position on the fixed blade. A relief portion is formed at the portion of the fixed blade corresponding to the edge of the deepest wrap to prevent the edge of the movable blade from contacting the fixed blade, and the movable blade contacts at least the fixed blade near the edge of the movable blade. A cutter for an adhesive sheet, wherein an oil-impregnated felt for attaching silicon oil is provided on a surface not to be coated. 2. The movable blade is a rotary blade that reciprocates along a fixed blade, and a relief portion of the fixed blade does not contact the fixed edge with the fixed blade over the entire moving region of the rotary blade. A groove formed along the reciprocating direction of the rotary blade, wherein the oil-impregnated felt moves in the reciprocating direction together with the rotary blade and does not contact the fixed blade near the cutting edge of the rotary blade. 2. The pressure-sensitive adhesive sheet cutter according to claim 1, wherein the cutter is always in contact with the surface in contact with the fixed blade. 3. A fixed blade and a rotary blade reciprocating along the fixed blade, wherein the rotary blade is moved to a position for cutting the adhesive sheet set at a cutting position on the fixed blade. At the portion of the fixed blade corresponding to the cutting edge of the portion where the rotary blade wraps deepest with respect to the fixed blade, the glue adhered to the adhesive surface of the adhesive sheet over the entire moving region of the rotary blade. A cutter for an adhesive sheet, wherein an oil-impregnated felt for applying a silicone oil is provided on at least a surface of the rotary blade that does not come into contact with the fixed blade, which is subjected to a non-adhesive treatment for preventing the adhesion. 4. A fixed blade, and a rotary blade that reciprocates along the fixed blade, wherein the fixed blade has a part of the edge of the rotary blade in a circumferential direction of the entire reciprocating region of the rotary blade. A surface that is disposed so as to protrude outward from an edge in a direction perpendicular to the surface of the adhesive sheet set at the cutting position of the fixed blade over the non-contact with the fixed blade near the cutting edge of the rotary blade And an oil-impregnated felt that is in constant contact with the surface in contact with the fixed blade to adhere the silicon oil thereto, and that the oil-impregnated felt is moved together with the rotary blade in the reciprocating direction. Sheet cutter. 5. The pressure-sensitive adhesive sheet cutter according to claim 2, wherein instead of the oil-impregnated felt, only the surface of the rotary blade that comes into contact with the fixed blade is in contact with the silicon oil. A rotary blade contact surface on which an oil-impregnated felt is provided, and a concave portion is provided on a surface near the blade edge of the rotary blade that is not in contact with the fixed blade, at a position at a predetermined distance from the blade edge toward the rotation center of the rotary blade. Formed over the entire circumference. 6. The reciprocating movement range of the rotary blade with respect to the fixed blade is limited to forward and backward movements, and a part of the blade edge of the rotary blade is moved from each end on both sides of the fixed blade in the reciprocating direction. 3. The moving range which is deviated from each other, and in each of the moving limits in the forward and backward directions, the position of the rotation center of the rotary blade is located inside each end on both sides of the fixed blade. The cutter for an adhesive sheet according to any one of claims 1 to 5.