JPH05112759A - Fixation of parts using adhesive - Google Patents

Abstract

PURPOSE:To provide a process for fixing two parts to each other with a double- coated tape having an adhesive layer on each side, wherein the positioning of the parts is performed according to a specified manner to facilitate the positioning work. CONSTITUTION:A process for fixing two parts 1 and 2 to each other with a double-coated tape 3 having an adhesive coating on each side, wherein one surface 31 of the tape 3 is bonded to one part 1, and the other part 2 is bonded to the other surface 32 of the tape 3 after water or an alcohol is applied to at least either the other surface 32 of the tape 3 or the bonding surface of the other part 2. The other part 2 in this state is bonded to the other surface 32, and the positioning of the parts 1 and 2 is performed by relatively sliding them.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention uses a double-sided tape to
The present invention relates to a method of adhesively fixing two parts to each other, and more particularly to a method of adhering and fixing both parts while positioning them.

[0002]

2. Description of the Related Art For example, in a vehicle-made resin part or the like, two parts may be adhered and fixed to each other with a double-sided tape. As the pressure-sensitive adhesive of the double-sided tape, for example, natural rubber or synthetic rubber mixed and kneaded with an antiaging agent, added with a solvent and resins, stirred and dissolved, and then filtered are used. In the adhesive fixing work of parts using double-sided tape, the parts can be instantly bonded, and the adhesive strength is stable,
There are advantages such as no need for post-processing.

[0003]

By the way, since the double-sided tape generally has a strong initial adhesive force, it is difficult to change the position once it is adhered, and it is also difficult to slide it. Therefore, the relative position between the two components substantially depends on the positioning accuracy at the time of the first bonding, and the positioning work requires careful attention. In order to eliminate the difficulty of the positioning work in the adhesive fixing work, a method of using an adhesive instead of the double-sided tape can be considered. Urethane-based adhesives are suitable as adhesives for bonding resin-made parts for vehicles, but these urethane-based adhesives have the drawbacks listed below.

(1) Crimping (heating) is required until it is solidified, which requires a large amount of equipment. (2) Since the protrusion of the adhesive occurs, post-processing is required. (3) The adhesive strength varies. (4) The work environment is deteriorated due to the volatile components such as the contained solvent. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method of bonding and fixing a component, which uses a double-sided tape and takes advantage of the advantages, and in which positioning work is easy.

[0005]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the adhesive fixing method of the present invention is one in which one surface of a tape is adhered to one component and the other part is adhered to the other surface of the tape. , After applying water or alcohol to at least one of the other surface of the tape or the adhered surface of the other component, and bonding the other component in that state,
Characterized by relative sliding positioning of both parts.

[0006]

[Function] When water or alcohol is applied to the pressure-sensitive adhesive of the double-sided tape, the initial adhesive strength is weakened. The water or alcohol escapes from the gap by pressure-bonding the adhesive surface between the tape and the component, and the remaining one escapes by evaporation. The present invention utilizes this point to bond the tape and the component to each other with water or alcohol applied to the adhesive surface, that is, at least one of the tape side and the component side, while weakening the initial adhesive force of the tape. The relative sliding between the two makes it possible to facilitate the positioning work, and also secures the quality of the double-sided tape.

[0007]

Embodiment FIG. 1 is a procedure explanatory diagram of an embodiment of the present invention.
A case in which the component 1 and the second component 2 are bonded and fixed to each other using the double-sided tape 3 will be described below. First,
As shown by A, one surface 31 of the double-sided tape 3 is attached to the first component 1
To a predetermined position (position indicated by hatching in the figure).

Next, as shown by B, water or alcohol is applied to the other surface 32 of the double-sided tape 3. After that, the first component 1 is moved to the vicinity of the adhered portion of the second component 2 as indicated by C, and the other surface 32 of the double-sided tape 3 is adhered to the second component 2. At this time, since the other surface 32 of the double-sided tape 3 has a weak initial adhesive force, the second surface in the bonded state is
Since the first component 1 can be slid with respect to the component 2, the first component 1 can be accurately positioned at the bonded position of the second component 2.

In this state, the first and second parts 1 and 2 are pressed to press the adhesive surface between the double-sided tape 3 and the second part 2. As a result, the water or alcohol applied to the other surface 32 of the double-sided tape 3 escapes through the gap, and the adhesive force on this surface is restored to the initial value. Further, even if some water or alcohol remains on this adhesive surface, these will evaporate from the gap with the passage of time and become completely equivalent to the original adhesive surface.

In the above embodiments, the case where water or alcohol is applied to the double-sided tape 3 side has been described, but even if it is applied to the component side, substantially the same action and effect can be obtained.

[0011]

As described above, according to the present invention, while ensuring the performance of the double-sided tape in the work of adhering and fixing the parts, and taking advantage of the work,
Since the initial adhesive strength is weakened and relative sliding is possible between the bonded surfaces after bonding, it is possible to easily position by sliding one of the two parts after bonding the two parts via double-sided tape. Became possible.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a procedure of an embodiment of the present invention.

[Explanation of symbols]

 1 ... 1st component 2 ... 2nd component 3 ... double-sided tape

Claims (1)

[Claims] 1. A method of adhering and fixing two parts to each other by using a double-sided tape having pressure-sensitive adhesives applied on both front and back sides, in which one side of the tape is adhered to one part,
Before adhering the other component to the other surface of the tape, at least one of the other surface of the tape and the adhered surface of the other component is coated with water or alcohol, and the other component is adhered in that state. After that, the both components are relatively slid and positioned, and the component is fixedly bonded.