JPS6210360Y2 - - Google Patents

Description

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

In the past, masking sheets for curing were generally made of paper, but recently there has been a tendency to use very flexible thin synthetic resin film sheets because they are inexpensive. The present invention is a flexible masking sheet made of a synthetic resin thin film, etc., in which an adhesive tape is attached to one side edge to form a roll. It is intended to be provided as a product, and its main structure is that one end side of a flexible long curing masking sheet made of a thin synthetic resin film, etc.
A core sheet of an appropriate length made of Hatron paper or the like having moderate stiffness and less flexibility than the masking sheet is connected and extended, and one longitudinal edge of the masking sheet and the core sheet are stretched. By attaching an adhesive tape along the winding ring and continuously wrapping the adhesive tape portion around the winding ring from the core sheet side toward the masking sheet side, the core is attached to the inner side. There is a rolled layer of the masking sheet, and a rolled layer of the masking sheet is placed on the outside of the rolled layer of the masking sheet.

The present invention will be described below with reference to the illustrated embodiments.

In FIG. 1, reference numeral 1 is a flexible masking sheet for curing made of a synthetic resin thin film, etc., and is long and has a suitable width (for example, about 45 cm wide). A core sheet 2 having the same width and appropriate length is connected and extended to one end of the masking sheet 1.
The core sheet 2 is flexible and moderately rigid, being less flexible than the masking sheet 1, and is preferably Hatron paper. The masking sheet 1 and the core sheet 2 connected in this way are made of paper, cloth, synthetic resin, etc. with a suitable narrow width (for example, a width of about 1 to 3 cm) along one long side edge of their entire length. An adhesive tape 3 having an adhesive layer on one side of a base tape sheet is attached. Here, the masking sheet 1 and the core sheet 2 may be connected by simply overlapping their one end sides with each other with an appropriate width and being connected by an adhesive tape 3, or the adhesive tape 3 may be Separately, the connection may be made using a connection means such as adhesive or adhesive tape.

Then, with the adhesive tape 3 attached to one longitudinal edge of the masking sheet 1 and the core sheet 2 connected as shown above, with the adhesive side facing inside, apply it to the outer periphery of the wrapping ring 4. , core sheet 2
As shown in FIGS. 2 and 3, by winding the core sheet 2 in continuous layers from the side toward the masking sheet 1 side, there is a wound layer of the core sheet 2 on the inside and a masking layer on the outside. The sheet 1 is rolled into a cylindrical shape in which a layer of winding is present, and in this way an elongated cylindrical roll 5 is obtained.

The wrapping ring 4 is a very short cylindrical ring made of strong paper or the like, and its dimensions are, for example, an outer diameter of 3 to 4 cm, and a wall thickness of 2 to 4 cm.
The length should be approximately 1.5 to 2 cm, and should be suitable for insertion and hooking with a fingertip. Further, the core sheet 2 may be made of Hatron paper, and the number of winding layers may be, for example, about 10 to 20, and the length may be such that this number of winding layers can be obtained.

The masking sheet roll with adhesive tape for curing of the present invention has the structure as described above, and according to this roll 5, the ring 4 is present in the opening on one end side around which the adhesive tape 3 is wound. The core sheet 2 and the masking sheet 1 are wound into a cylindrical shape without a core, and has the following advantages.

That is, according to this roll 5, it is possible to apply the masking sheet 1 to a window glass surface etc. with the adhesive tape 3 attached to one side edge while unrolling the masking sheet 1. ,
As shown in FIG. 3, by inserting and hooking a fingertip into the ring 4 present in the opening on one end side around which the adhesive tape 3 is wrapped, the part can be lightly held with one hand. With the other hand, hold the adhesive tape 3 of the masking sheet 1 that is being fed out and attach it to the desired surface, and then press the roll 5 as described above.
If you move the hand holding the ring 4, you can move the winding body 5 around this finger while keeping it hooked on the ring 4.
As the masking sheet 1 rotates, the masking sheet 1 is fed out, and in this way, it is possible to very easily and efficiently perform the task of feeding and pasting the masking sheet.

In this case, since the masking sheet 1 is a flexible material made of a thin synthetic resin film, the roll 5 is
Assuming that only this flexible masking sheet 1 is wound into a cylindrical shape without a core,
It is soft and bends, making the above-mentioned pasting work very difficult, but especially with this roll 5, there is a rolled layer of core sheet 2 on the inside, and this core sheet 2 is used for masking. By being made of Hatron paper, etc., which is less flexible than the sheet 1 and has moderate rigidity, the winding layer of the core sheet 2 plays the role of imparting rigidity to the roll 5; Even if the roll 5 is held in any direction, such as horizontally or diagonally, the roll 5 does not easily bend, and the above-mentioned pasting work can be easily accomplished.

According to this roll 5, there is no core, so
If necessary, it can be folded by appropriately folding it into two or three in the length direction as shown by the imaginary lines in Fig. 2. When the core sheet 2 is squeezed by hand in the longitudinal direction, the rolled layer of the core sheet 2 is expanded and stiffness in the longitudinal direction is again obtained. Pasting work becomes possible. Therefore, it has the advantage of being able to be transported and stored in a compact state by folding, which is not possible with products with a core.Moreover, products with a core can be easily stepped on or placed in high If the core is dropped from a certain place, there is a high risk that the core will be crushed or broken, making it unusable, but there is an advantage in that there is almost no such risk.

In addition, according to this winding body 5, when it is placed horizontally on a placing surface, since there is no winding core, the winding body except for the part where the ring 4 on one end side is present, as shown in FIG. The winding layer can naturally flatten into a circular shape, which prevents the rolling that occurs in cored products, and allows the winding 5 to be temporarily rolled during pasting work at high places. This is very advantageous for pasting work since it prevents the adhesive from rolling over when placed on an inclined surface or the like.

Moreover, according to this roll 5, the core sheet 2 is connected to the masking sheet 1 to form the inner winding layer, so that the core sheet 2 is finally all fed out continuously from the masking sheet 1. It can be used as a masking sheet, and once it is used up, only one very small ring 4 will be left unused, so unlike products with a core, a large amount of used core will accumulate and be disposed of. It is advantageous because it is very rational and there is no waste, and it is advantageous for pasting work because the winding body 5 can be made lighter because there is no winding core, and it can be manufactured at a low cost and is economical. It also has the advantage of being

As described above, the masking sheet roll with adhesive tape for curing according to the present invention has a structure that is very convenient and advantageous in practice.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the winding start end of the winding body in an unfolded state, FIG. 2 is a perspective view of the winding body, and FIG. 3 is a perspective view of the winding body. It is a longitudinal cross-sectional view of one end side part. 1... Masking sheet, 2... Core sheet,
3...adhesive tape, 4...ring, 5...roll.

Claims (1)

[Scope of utility model registration request] A core sheet of an appropriate length made of Hatron paper, etc., which is less flexible than the masking sheet and has moderate stiffness, is connected to one end of a flexible long curing masking sheet made of a synthetic resin thin film. and attach an adhesive tape along one longitudinal edge of the masking sheet and the core sheet, and place a portion of the adhesive tape on the side of the core sheet with respect to the wrapping ring. By continuously winding the masking sheet in multiple layers toward the side of the masking sheet, the core sheet is wound in a cylindrical shape so that the core sheet layer is present on the inside and the masking sheet layer is present on the outside. A masking sheet roll with adhesive tape for curing, which is characterized by: