JPH04215405A - Cover sheet adhesive method of slide operating type electric part - Google Patents

Abstract

PURPOSE:To improve operativeness of a cover sheet and readily position the cover sheet for a body casing by a method wherein the cover sheet is separated from a base sheet or adhered to the body casing through a transparent film. CONSTITUTION:A cover sheet 5 and a transparent film 11 covering the cover sheet 5 are adhered to a base sheet 7 abundant in separateness on the surface. After the cover sheet 5 and transparent film 11 are separated from the base sheet 7, the cover sheet 5 is positioned while the transparent film 11 is adhered to a body casing, and thereafter the transparent film 11 is separated from the body casing.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a cover sheet attached to a position covering a long hole of a slide-operated electric component for dustproofing, blinding, etc.

0002

[Prior art] A slide-operated variable resistor is shown in Figs. 4 and 5.
As shown in the plan view and side view of the main body case 1, an operator 3 protrudes from a long hole 2 formed on the top surface of the main body case 1.
By moving the operator 3 back and forth along the elongated hole 2, the set resistance value can be changed. That is, although not shown in the drawings, inside the main body case 1, a slider integrated with the operator 3 is brought into elastic contact with a resistor on the insulating substrate 4, so that when the operator 3 is moved back and forth, the slider The mover slides on the resistor, and the resistance value changes accordingly. If the elongated hole 2 is exposed to the outside, dirt and dust may adhere to the slider or resistor, causing poor continuity, and the interior of the main body case 1 becomes visible, impairing the design. Therefore, a flexible cover sheet 5 made of a rubber sheet or an opaque film is pasted on the top surface of the main body case 1 at a position covering the elongated hole 2, and a slit 6 formed in advance in this cover sheet 5 is attached. It is made to face the elongated hole 2. Such a cover sheet 5 has conventionally been attached to the main body case 1 in the following manner. First, Figures 6 and 7
As shown in the cross-sectional view and plan view, a band-shaped body 9 is prepared in which a cover sheet 5 is attached via a double-sided adhesive tape 8 to a base sheet 7, which is also called a separator and has a highly releasable surface. Here, the base sheet 7 is a known one in which a release agent is applied to a mount to improve the releasability of the surface, and the strip 9 holds a large number of cover sheets 5 at a predetermined pitch. . Then, peel off the cover sheet 5 along with the double-sided adhesive tape 8 from this strip 9, pinch both ends of the cover sheet 5 with your fingers, and position it based on the outline of the top surface of the main body case 1 to a predetermined position covering the elongated hole 2. cover sheet 5
Paste.

0003

[Problems to be Solved by the Invention] However, in the conventional pasting method described above, since the pasting work must be performed with both ends of the cover sheet 5 covered with fingers, the position of the cover sheet 5 with respect to the main body case 1 must be adjusted. There was a problem that it was difficult to match. In addition, since the cover sheet 5 is directly pinched and peeled off from the base sheet 7, careful peeling work is required to avoid tearing the cover sheet 5, and even after peeling off, the small cover sheet 5 must be pinched while working, so care must be taken. It required a lot of force and was ultimately difficult to handle. Therefore, it is an object of the present invention to provide a method for attaching a cover sheet to a slide-operated electric component, which allows the cover sheet to be easily handled and aligned easily.

0004

[Means for Solving the Problems] The above-mentioned object of the present invention is to provide a base sheet (separator) with a highly releasable surface and a cover sheet and a transparent film covering the cover sheet attached, After peeling off the transparent film together with the cover sheet from the base sheet, affixing the transparent film to the main body case while aligning the cover sheet, and then peeling off the transparent film from the main case. achieved by.

[0005]

[Operation] By peeling the transparent film together with the cover sheet from the base sheet, you can avoid the fear of tearing the cover sheet when peeling it off, and even after peeling off, you can continue to work while holding the relatively large transparent film between your fingers. As a result, ease of handling is improved. Furthermore, since the outline of the cover sheet can be visually observed through the transparent film, positioning during pasting can be easily performed.

[0006]

[Embodiments] Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 to 3. In this embodiment, as shown in the cross-sectional view and plan view of FIGS.
As the band-like body 10 holding the cover sheet 5, a cover sheet 5 and a transparent film 11 covering the cover sheet 5 are attached to a base sheet (separator) 7 whose surface is highly releasable. Here, a cover sheet 5 made of polyethylene terephthalate or the like and provided with slits 6 is attached with a double-sided adhesive tape 8, and a transparent film 11 made of polyvinyl chloride or the like is attached with an adhesive layer 12. However, the adhesive strength of the double-sided adhesive tape 8 is stronger than that of the adhesive layer 12. Now, once such a band-shaped body 10 is prepared, first, the transparent film 11 is peeled off from the base sheet 7 along with the cover sheet 5. At this time, due to the releasability of the surface of the base sheet 7, if the transparent film 11 with the adhesive layer 12 is peeled off from the base sheet 7 by pinching your fingers, the cover sheet 5 and the double-sided adhesive tape 8 will also be peeled off from the base sheet 7. I will do it. Next, while pinching both ends of the peeled transparent film 11 with your fingers, as shown in FIG.
As shown in the plan view, while comparing the outline of the top surface of the main body case 1 and the outline of the cover sheet 5, and aligning the cover sheet 5 so that it is in a predetermined position covering the elongated hole 2,
A transparent film 11 is pasted on the top surface of the main body case 1. After that, when the transparent film 11 is peeled off from the main body case 1, the adhesive force of the double-sided adhesive tape 8 is stronger than the adhesive layer 12 as described above, so the cover sheet 5 remains stuck to the main body case 1 and becomes transparent. It peels off from the sexual film 11.

As described above, in the above embodiment, the transparent film 11 is attached to the base sheet 7 together with the cover sheet 5.
Since the cover sheet 5 is peeled off, there is no fear that the cover sheet 5 will be torn during peeling, and even after the film is peeled off, the relatively large transparent film 11 can be held in the fingers and work can be carried out, resulting in extremely good handling properties. In addition, the transparent film 11
The outline of the cover sheet 5 can be seen visually through the cover sheet 5, and the cover sheet 5 is not covered with fingers as in the conventional case, so alignment with the main body case 1 can be easily performed, improving work efficiency and preventing misalignment. I can figure it out. In the above embodiment, one of the four corner protrusions of the cover sheet 5 (indicated by A in the figure) is shortened, but this can be determined by visually observing the cover sheet 5 attached to the top surface of the main body. This is intended to allow the orientation of the case 1 to be grasped instantly, thereby improving workability in the subsequent assembly process. However, cover sheet 5
It goes without saying that the present invention is applicable even when the material and shape of the transparent film 11 are different from those of the above embodiments.

[0008]

Effects of the Invention As explained above, the cover sheet pasting method according to the present invention involves peeling off the transparent film covering the cover sheet from the base sheet, pinching it with your fingers, and attaching the transparent film to the main body while visually checking the outline of the cover sheet. After pasting it on the case, only the transparent film is peeled off from the main case, so you can work without touching the cover sheet with your fingers, making it easy to handle, and it is easy to align the cover sheet to the main case. This has an excellent effect in that it can be used in a variety of situations, and thus greatly contributes to improving the productivity and reducing costs of slide-operated electrical components.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a strip according to an embodiment of the present invention.

FIG. 2 is a plan view of the strip shown in FIG. 1;

FIG. 3 is a plan view showing the step of attaching a cover sheet in this example.

FIG. 4 is a plan view of the slide-operated variable resistor.

FIG. 5 is a side view of the variable resistor shown in FIG. 4.

FIG. 6 is a sectional view of a band-shaped body according to a conventional example.

7 is a plan view of the strip shown in FIG. 6. FIG.

[Explanation of symbols] 1 Main body case 2 Long hole 3 Operator 5 Cover sheet 6 Slit 7 Base sheet 10 Band-shaped body 11 Transparency film

Claims (1)

[Claims] Claim 1: A slit is provided on the surface of the main body case at a position covering the elongated hole for protruding the operator, and a flexible cover sheet is pasted so that the slit faces the elongated hole; In the process of manufacturing a slide-operated electric component that allows the operator to reciprocate along a long hole,
A base sheet with a highly releasable surface is prepared with the cover sheet and a transparent film covering the cover sheet attached, and after peeling off the transparent film together with the cover sheet from the base sheet, the cover sheet is removed. A method for attaching a cover sheet to a slide-operated electrical component, the method comprising attaching the transparent film to the main body case while aligning the sheet, and then peeling off the transparent film from the main body case.