JPH078188Y2 - Waterproof tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention mainly relates to a waterproof tape for construction.

[Prior Art] A joint between members in a unit house is rain-sealed by spanning a waterproofing tape for construction between the members.
This type of waterproof tape has various structures as disclosed in JP-B-60-30048, JP-B-61-42822, JP-B-61-45950 and the like, but is the most common. Butyl rubber tape has been used. Butyl rubber has a strong adhesive property, and thus has an advantage that it can be directly bonded to a member without using an adhesive or the like.

[Problems to be Solved by the Invention] However, butyl rubber is extremely stretchable, which rather deteriorates the workability of attaching the waterproof tape.

Further, since butyl rubber is inferior in strength and durability, some problems remain as a waterproof tape for construction that is used for a long period of time.

This invention has been made in view of the problems of the above-mentioned conventional techniques, and the purpose is to be optimal for construction,
It is about to provide a waterproof tape that is easy to handle.

[Means for Solving the Problems] This invention has been made in order to achieve the above object.
The gist is that a vulcanized rubber tape is joined to one surface of the butyl rubber tape, and both ends of the butyl rubber tape in the width direction are projected more than both ends of the vulcanized rubber tape. On the opposite side, a peeling tape with different peelability on both front and back sides is placed with its inferior peeling surface in contact with the vulcanized rubber tape, and both widthwise ends of the peeling tape are attached to both ends of the butyl rubber tape. Furthermore, the waterproof tape is characterized in that both ends of the peeling tape in the width direction are projected more than both ends of the butyl rubber tape.

[Function] The vulcanized rubber tape is excellent in durability and has sufficient strength. By joining the vulcanized rubber tape to the butyl rubber tape, the durability and strength of the waterproof tape are improved.

Further, a release tape is arranged on the side of the vulcanized rubber tape which is separated from the butyl rubber tape. This release tape is treated on both sides, and the release properties are different on both sides, and the surface with poor release properties is butyl rubber. Since it is attached to both ends of the tape, even if you put the waterproof tape on top of each other like a scroll and attach the butyl rubber tape to both sides of the release tape, the priority order of release will be decided when you release the overlay later. It is easy to use.

Further, since both ends of the peeling tape project beyond both ends of the butyl rubber tape, the peeling tape can be easily peeled off.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

The drawing is a vertical sectional view of a waterproof tape 1 for construction. The waterproof tape 1 includes a butyl rubber tape 2, a vulcanized rubber tape 3 bonded to one surface of the butyl rubber tape 2, and a peeling tape disposed on the opposite side of the butyl rubber tape 2 with the vulcanized rubber tape 3 interposed therebetween. 4 and.

Both ends of the butyl rubber tape 2 in the width direction (horizontal direction in the drawing) are projected to the outside of both ends of the vulcanized rubber tape 3 in the width direction, and both ends of the peeling tape 4 in the width direction are both ends of the butyl rubber tape 2 in the width direction. It projects further outside than.

The peeling tape 4 is a paper tape that is coated on both sides with silicone coating or the like to give peelability to both sides, but the peelability of both sides is different, and one surface is a butyl rubber tape rather than the other surface. 2 is easier to peel off. The peeling tape 4 has a poor peelability,
That is, the surface that is difficult to peel off is brought into contact with the vulcanized rubber tape 3, and both ends of the peeling tape 4 in the width direction are attached to both ends of the butyl rubber tape 2 that projects outward from the vulcanized rubber tape 3.

In the waterproof tape 1 having the above-mentioned configuration, the butyl rubber tape 2 is joined with the vulcanized rubber tape 3 having sufficient strength and excellent durability, so that the strength and the durability of the waterproof tape 1 are higher than those of the conventional one. Greatly improved. Therefore,
Most suitable as a waterproof tape for construction that is used for a long time.

Further, since the peeling tape 4 has different peeling properties on both sides and both ends of the butyl rubber tape 2 are attached to the surfaces which are difficult to peel off, it is convenient to stack and stock the waterproof tape 1. For example, when the waterproof tape 1 is used as a scroll, the peeling tape 3 in the first waterproof tape 1 is used.
The butyl rubber tape 2 of the second waterproof tape 1 is wrapped around and attached to the upper surface of the peeling tape 3 described above.
Since the upper surface of the is superior in peeling property, the second waterproof tape 1 can be removed from the first waterproof tape 1 without separating the butyl rubber tape 2 and the peeling tape 3 in the second waterproof tape 1. It can be peeled off.

When the waterproof tape 1 is used, the peeling tape 3 is peeled off to expose the adhesive surface of the butyl rubber tape 2, but both ends of the peeling tape 3 in the width direction are projected to the outside of both ends of the butyl rubber tape 2. Therefore, there is also an advantage that the peeling tape 3 can be easily peeled off.

This invention is not limited to the above-mentioned embodiment, and various modes can be adopted.

For example, by embedding a thread made of a material such as cotton thread that has poor elasticity and excellent flexibility and tensile strength along the lengthwise direction inside the butyl rubber tape, the waterproof tape is made difficult to stretch and waterproof. The tape mounting workability may be further improved.

The waterproof tape of the present invention can also be used for construction other than unit houses.

[Effect of the Invention] As described above, the present invention has the following excellent effects.

By joining the vulcanized rubber tape to the butyl rubber tape, the excellent effect of improving the durability and strength of the waterproof tape is exhibited.

Further, since both ends of the peeling tape in the width direction are projected more than both ends of the butyl rubber tape, there is also an advantage that the peeling tape is easily peeled off.

Furthermore, the release tape has different release properties on both sides,
Both ends of the vulcanized rubber tape and the butyl rubber tape are attached to the surface with poor peelability, so even if waterproof tape is stacked and stocked, it is easy to use after unsealing it and it is easy to use That is an excellent effect.

[Brief description of drawings]

The drawing is a vertical sectional view of a waterproof tape showing an embodiment of the present invention. 1 ... Waterproof tape, 2 ... Butyl rubber tape, 3 ... Peeling tape.

Claims (1)

[Scope of utility model registration request] 1. A vulcanized rubber tape is bonded to one surface of a butyl rubber tape, and both ends in the width direction of the butyl rubber tape are projected more than both ends of the vulcanized rubber tape. The vulcanized rubber tape is sandwiched between the butyl rubber tape. On the opposite side, a peeling tape with different peelability on both front and back sides is placed with the inferior peeling surface in contact with the vulcanized rubber tape, and both ends in the width direction of the peeling tape are attached to both ends of the butyl rubber tape. The waterproof tape is characterized in that both ends of the peeling tape in the width direction are projected more than both ends of the butyl rubber tape.