JPS6124217Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust removal roll, and more particularly to a dust removal roll configured to reliably peel off an adhesive sheet coated with an adhesive one layer at a time.

A band-shaped adhesive sheet with an adhesive applied to the front side and a release agent applied to the back side is rolled around a core material, and is rotatably attached to a spindle via the core material, allowing it to be used for clothing, etc. Dust removal rolls are known that remove dust adhering to carpets.

If this type of dust removal roll is used for a predetermined period of time, dust will adhere to the adhesive layer, resulting in a loss of adhesive strength, so it is necessary to peel and remove each layer one by one. For this reason, in the past, a part of the adhesive sheet was perforated along the axial direction, or a simple cut was made that reached the outer circumferential surface of the core material, and one end of the adhesive sheet was not coated with adhesive. established,
A dust removal roll has been proposed that is configured to peel off the release paper one layer at a time.

However, even if such a structure is adopted, the adhesive sheet is extremely thin, so even if you try to peel it off one by one from the part where no adhesive is applied, the end face of the perforation or cut formed in the adhesive sheet becomes an upright wall. Therefore, it is difficult to use fingers when peeling off the upper layer one by one, making the peeling process difficult, and conversely, the perforation has the disadvantage that the adhesive sheet may be torn off from a portion other than the cut.

Furthermore, simply using perforations or notches has the disadvantage that when fiber waste adheres beyond the perforations or notches, it becomes difficult to peel off the adhesive sheet at those locations.

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and aims to provide a dust removal roll configured to be able to reliably peel off adhesive sheets one by one from the upper layer.

The details of the present invention will be explained below based on the embodiments shown in the drawings.

The dust removal roll, which is generally indicated by the reference numeral 1 in the figure, is composed of a core material 2 made of cardboard or the like, and an adhesive sheet 3 wound around the surface of the core material 2 in a roll shape. Adhesive sheet 3 rolled into a roll
A slit-shaped groove portion 3a is formed with a predetermined width along the axial direction from the uppermost layer to the surface of the core material 2. The adhesive sheet 3 has a third layer on its surface side.
As shown in the enlarged figure, an adhesive 4 is applied.

On the other hand, the entire surface of the adhesive sheet 3 is embossed to form uneven stripes 5 at a constant pitch along the circumferential direction. In the embodiment shown in FIG. 1, this uneven strip 5 is formed as a linear uneven strip along the axial direction of the dust removal roll 1.

Incidentally, the uneven strips 5 formed by embossing are formed at a constant pitch along the circumferential direction, and the adhesive sheet 3 is attached to the core material 2.
Since it is formed on a continuous sheet in a belt shape in the process before being wrapped around the core material 2, when it is wound around the core material 2, the winding diameter becomes larger as it reaches the outer layer, and the upper and lower uneven strips 5 are formed on the second layer along the circumferential direction. As shown in the enlarged figure, they are slightly shifted, and the uneven strips 5 of the upper and lower adhesive sheets do not overlap. As a result, the upper and lower adhesive sheets are not in close contact with each other and are in a floating state, and are easily separated one by one and peeled off. Therefore, when trying to peel off the adhesive sheet one by one from the upper layer on the side of the portion 3b where no adhesive is applied, the adhesive sheet can be easily pulled onto the fingertip.

In the above embodiment, the uneven portion is the uneven strip 5.
Although the example is shown as being embossed in a state parallel to the axial direction of the dust removal roll 1,
The uneven portion may be, for example, a large number of simple hemispherical uneven portions, or if it is a linear uneven portion, it may be formed obliquely to the axial direction of the roll.
However, in the case of linear uneven stripes, they must not be formed perpendicular to the axial direction of the roll.
This is because if the uneven stripes are formed at a constant pitch along the axial direction and perpendicular to the axis, the uneven strips of the upper and lower adhesive sheets 3 will fit into each other.
This is because the upper and lower adhesive sheets stick together and are difficult to peel off.

In the embodiment shown in FIG. 1, the portion 3b to which no adhesive is applied is formed at both ends of the dust removal roll 1, but it may also be formed only at one end of the dust removal roll. Of course.

On the other hand, a notch 3c is formed in the portion 3b to which no adhesive is applied. This notch 3c is formed in the shape of a mountain with an open edge on the outside, and is formed to include the core material 2 as well. The top portion thereof is continuous with the linear cut groove portion 3a.

If such a notch 3c is provided, the adhesive sheet can be picked up from the part 3b that is not coated with adhesive.
When attempting to peel off one sheet at a time, the adhesive sheet is easily caught on the fingertips, making it easy to perform reliable peeling.

Dust removal roll 1 formed as above
is attached to the handle 6 as shown in FIGS. 4 and 5. As shown in FIG. 5, the handle 6 has an upwardly curved grip 7 that is easy to grip, and a support shaft 8 continuous to the tip thereof, and a mounting frame 9 is rotatably supported on this support shaft 8. There is. The mounting frame 9 is formed into a pincushion shape and has four support frames 9a extending radially.The tip of each support frame 9a is an elastic arm 9b extending along the support shaft 8. The end side also forms a resilient arm 9c extending toward the grip 7. A hook 9d is formed at the end edge of the arm 9c on the rear end side and is bent outward.

Each support frame 9a, including the arms 9b and 9c, is formed in such a manner that its outer edge is slightly curved outward as it reaches the ends of the arms 9b and 9c. Therefore, when the dust removal roll 1 is fitted into the mounting frame 9 through its core material 2, the arms 9b and 9c are elastically deformed and press-fitted into the core material 2, and the hook 9d at the rear end is moved as shown in FIG. As shown, the rear end of the core material 2 is locked to restrict the attachment limit. Since the arms 9b and 9c of the dust removal roll 1 attached to the mounting frame 9 through the core material 2 are pressed against the inner surface of the core material 2 by their elasticity, a large frictional force is generated, and the dust removal roll 1 is attached to the mounting frame 9 through the core material 2. 1 rotates integrally with the mounting frame 9, and no relative rotational movement occurs.

As is clear from the above description, according to the present invention, the adhesive sheet wound into a roll has a linear cut groove extending along the axial direction and reaching the core material.
At least one end of the roll has a part where no adhesive is applied, and uneven stripes are formed at a constant pitch along the circumferential direction over the entire surface of the adhesive sheet, so it cannot be rolled into a roll. This causes the uneven lines created by embossing to shift along the circumferential direction,
The upper and lower adhesive sheets will be slightly floating,
It is easy to touch the fingertips layer by layer, and it is easy to perform the operation during peeling, so that the adhesive sheet of the upper layer that has lost its adhesive strength can be peeled off very easily.

In addition, a notch is formed at the edge of the dust removal roll where no adhesive is applied, so if you insert your fingertip into this notch, the adhesive sheet will be slightly lifted when you peel it off. The edge of the adhesive sheet can be easily caught and the adhesive sheet can be reliably peeled off.

[Brief explanation of the drawing]

Figures 1 to 3 are for explaining one embodiment of the present invention. Figure 1 is a perspective view of a dust removal roll, Figure 2 is a partially enlarged sectional view taken along line A-A in Figure 1, and Figure 3 is a perspective view of a dust removal roll. 1 is a partially enlarged sectional view taken along line B-B in FIG. 1, FIG. 4 is a perspective view of the device attached to the handle, and FIG. 5 is a perspective view of the handle. DESCRIPTION OF SYMBOLS 1... Dust removal roll, 2... Core material, 3... Adhesive sheet, 3a... Groove portion, 3b... Portion to which adhesive is not applied, 4... Adhesive, 5... Uneven strip.

Claims (1)

[Scope of utility model registration request] A pressure-sensitive adhesive sheet 3 coated with an adhesive on the surface and a release agent on the back surface is wound around a cylindrical core material 2 in a roll shape, extending from the top layer of the pressure-sensitive adhesive sheet 3 to the surface of the core material along the axial direction. A cut groove portion 3a is formed over the entire length in the axial direction, a portion 3b to which no adhesive is applied is provided with a predetermined width on at least one end side in the axial direction, and the adhesive sheet 3 is provided with a constant pitch in the circumferential direction over the entire surface. The portion 3b is embossed with uneven stripes 5 and is not coated with the adhesive.
A dust removal roll characterized in that a mountain-shaped notch 3c with an open edge on the outside is provided including the core material 2, and the top of this notch 3c is continuous with the linear cut groove 3a. .