JPS597971Y2 - Masking sheet roll with adhesive tape for curing - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roll of masking sheet with curing adhesive tape used for temporarily covering window glass and the like during construction work.

Conventionally, it is well known that adhesive tape or other adhesive tape is used to attach curing masking sheets such as paper, laminated resin sheets, etc., and in order to make this work easier and more efficient. , the masking sheet is provided with an adhesive tape on one side edge thereof, and this is wound together with the adhesive tape in multiple layers around a hollow core to form a roll. Therefore, it is well known and widely used that the roll is held in the hand and the masking sheet is fed out while being adhered with adhesive tape attached to the side edges.

However, although such a roll of masking sheet with adhesive tape is much more advantageous and progressive in terms of ease of application than a method in which a masking sheet is pasted with a separate adhesive tape, Judging from its row-shaped roll shape,
It is difficult to hold this in the hand and apply it while drawing it out, and it is difficult to say that it is very easy to operate.

Therefore, the present invention has been developed to improve the roll of masking sheet with adhesive tape so that it is easier to hold and operate. The provided adhesive tape is wound along the open end of the hollow core, and the inner periphery of the open end of the hollow core around which the adhesive tape is wound is provided with an overhanging flange on which a finger can rest. It's in the fact that it became a thing.

Embodiments of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 and 2, numeral 1 is a curing masking sheet made of paper, plastic sheet, etc., which is long and has a suitable width (for example, 45 cm wide).

On one side edge of the longitudinal side of this masking sheet 1, a tacky adhesive layer is applied to one side of a paste tape sheet made of paper, cloth, resin, etc. having a suitable narrow width (for example, 1 to 3 cnn width). An adhesive tape 2 is provided.

This masking sheet 1 with adhesive tape is placed around a thin hollow core 3 having a circular cylindrical cross section and made of paper or the like and having a length corresponding to its width and an appropriate diameter (for example, 3 cm diameter). Next, the adhesive tape 2 is wound into a roll so that the adhesive layer side thereof is inside and the adhesive tape 2 is wound continuously in multiple layers to form a roll.

In this roll, an adhesive tape 2 provided on one side edge of a masking sheet 1 is wound along an open end on one end side of a hollow core 3, and a hollow core 3 around which this adhesive tape 2 is wound is wound. An overhanging flange 4 on which a finger can rest is provided on the inner periphery of the opening end.

Here, the flange 4 has an outer diameter that matches the inner diameter of the hollow winding core 3, an appropriate wall thickness (for example, about 2 to 3 mm), and a very short length (for example, 1.5 to 3 mm). 2
The annular body is made of strong paper or the like and has a circular cylindrical cross section, and is fitted and fixed into the opening at the end of the hollow winding core 3.

However, according to the roll with the structure of the lever, masking sheet 1
As shown in Figure 2, as shown in Fig. 2, the end of the hollow core 3 around which the adhesive tape 2 is wrapped is By inserting a finger into the opening of the part and hooking the fingertip on the overhanging flange 4, the part can be easily and securely held with one hand. While holding the second part of the adhesive tape on the masking sheet 1 and applying it, move the hand holding the roll as described above.With the fingertip still caught on the flange 4, use this finger as the axis. As the roll rotates, the adhesive tape 2 is unwound, and the masking sheet 1 is unwound.In this way, one worker can easily and efficiently assemble the masking sheet. It is possible to perform the work of pasting while unrolling the tape.

Next, FIG. 3 shows a modified embodiment of the above embodiment, in which the hollow winding core 3 is not made into a cylindrical shape having a length spanning the entire width of the masking sheet 1, but instead is made from such a cylindrical shape. , the adhesive tape 2 with an overhanging flange 4 provided on the inner periphery is left in its cylindrical shape only near the wrapped end, and most of the other sides are split vertically in half, or at a higher ratio. It has a shape similar to that cut out, but the overall length is slightly shorter.

In such a structure, the winding core 3 is, for example, a single cylindrical piece with a length corresponding to the width of the masking sheet, and is cut vertically and diagonally from near one end to near the other end. By dividing the winding core into two rolls, it is possible to produce two rolls, which is advantageous in reducing manufacturing costs by saving the amount of core material. This is useful for improving operability.

With this structure, compared to a case where the entire winding core is cylindrical in length corresponding to the full width of the masking sheet, there is a slight weakness in the shape retention of the wrapped state of the masking sheet, but the winding core Since the shape retention property in the longitudinal direction depends on the length of the masking sheet, it can be applied to almost any type of masking sheet, even if it is a fairly thin and flexible masking sheet with poor rigidity. It is.

Next, FIG. 4 shows a further modified embodiment, in which the hollow winding core 3 is made extremely short to form a ring-shaped body with the same width as the adhesive tape, and this is attached only to the area where the adhesive tape 2 is wound. As a result, the winding core and the overhanging flange are indistinguishably one and the same, and the winding core 3 itself constitutes the overhanging flange 4.

This structure is more advantageous in terms of saving core material and reducing weight.

However, with this structure, the shape retention of the rolled state of the masking sheet 1 is considerably poor, so if the masking sheet 1 is relatively rigid like paper, it is difficult to maintain the shape of the rolled shape by itself. It is preferable to apply this method when it has a good quality.

In this case, it goes without saying that the length of the winding core 3 may be made equal to the width of the adhesive tape 2, or may be made somewhat longer or shorter than that, as appropriate.

As described above, according to the masking sheet roll with adhesive tape for curing of the present invention, the adhesive tape provided on one side edge of the masking sheet is wound along the open end of the hollow core, and the adhesive By providing a protruding flange on the inner periphery of the open end of the hollow core around which the tape is wound, the part where the adhesive tape is wound can be easily and securely handled with one hand by placing the finger on the flange. This makes it extremely easy and efficient to apply the masking sheet while it is being fed out, solving the problem of difficulty in operability when applying conventional rolls of this type. It is what was done.

[Brief Description of the Drawings] Fig. 1 is a partial perspective view showing one embodiment of the masking sheet roll according to the present invention, Fig. 2 is a longitudinal cross-sectional view thereof, and Fig. 3 shows another embodiment. FIG. 4 is a vertical cross-sectional view showing still another embodiment. 1... Masking sheet, 2... Adhesive tape, 3... Hollow winding core, 4... Overhanging flange.

Claims (3)

[Scope of utility model registration request] (1) Masking with adhesive tape for curing, in which a masking sheet for curing with adhesive tape on one side edge is wound together with the adhesive tape in a multi-layered manner around a hollow core. In the sheet roll, the adhesive tape is wound along the open end of the hollow core,
A masking sheet roll with adhesive tape for curing, characterized in that a protruding flange on which a finger can rest is provided on the inner periphery of the open end of a hollow core around which the adhesive tape is wound. (2) The masking sheet roll with adhesive tape for curing according to claim 1, wherein the hollow core has a shape in which a part of the side surface of a cylinder is cut off. (3) The utility model registration claim 1, wherein the hollow winding core is an annular body existing only in the winding portion of the adhesive tape, and is itself the overhanging flange. Masking sheet roll with adhesive tape for curing.