JPS62226515A - Tape-shape touch switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a tape-like touch switch, in particular, a tape-like touch switch, which is arranged at the opening/closing part of an elevator door, and when the door is normally opened/closed, the contact of the switch is turned off. This invention relates to a tape-shaped touch switch that remains in place but turns on when a foreign object is caught.

[Conventional technology]

In recent years, as buildings have become taller, elevators, escalators, etc. have rapidly become more popular, and this has led to children being injured by getting their hands caught between elevator doors and door pockets, and children being injured by getting their hands caught between elevator doors and door pockets. Injuries caused by the toes of the foot being pulled into the foot are becoming a social problem, and measures to prevent such accidents are desired.

In other words, if a child's hand or other object is pulled in as mentioned above, the situation is detected by some means and the elevator is stopped, the elevator door is opened, or the escalator is stopped. It has to be stopped.

[Problem to be solved]

By the way, as mentioned above, in order to arrange a detection means such as a switch in a narrow gap such as an elevator, the switch needs to be thin. Conventionally, tape switches (Tokyo Sensor) and cord switches (Bridestone) have been supplied to the market for this purpose, but since these switches are relatively thick, It is difficult to install a switch in a place where there is a narrow gap, such as between the door and the door pocket as mentioned above, and even if it is forcibly installed, it is difficult to reliably detect that the above-mentioned fingers are caught. Met.

Furthermore, in order to install a switch with a thicker dimension, it is necessary to modify the elevator body, and such a method is not preferable in terms of man-hours and costs.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention includes an insulating and flexible band-shaped support plate, a pair of band-shaped electrodes disposed on the surface of this support plate, and a band-shaped electrode inserted between the pair of electrodes. a strip-shaped spacer having an opening window, lead wires connected to each of the pair of electrodes, and a connection between the support plate, the pair of electrodes, the spacer, the electrode and the lead wire; and an elastic covering material that hermetically covers all the connecting parts.

[Effect]

With the structure described above, the pair of upper and lower electrodes, which have an appropriate clearance due to the spacer, are normally off, and when a special external force is applied, one electrode and the other electrode come into contact at that location. If a predetermined electric circuit is connected to the lead wires connected to each electrode, a current will flow there.

Then, when the external force is removed, conduction between the two electrodes is turned off due to elastic recovery, and no current flows.

〔Example〕

The present invention will be explained below based on an illustrated embodiment.

FIG. 1 is a perspective view of the tape-like touch switch of the present invention, FIG. 2 is a sectional view taken along line II-n in FIG. 1, and FIG. 3 is an exploded view of the tape-like touch switch. It is a perspective view when opened.

As shown in FIG.
Along the front side of the slightly wide elastic covering material 7, which has an insulating property of microns), vinyl chloride, polyethylene, and polypropylene are used.

A thin strip-shaped support plate 1 made of nylon, polyester, etc. and having a thickness of 0.3 to 2 mm is attached.

The upper surface of the support plate 1 is covered with a flexible material made of a woven fabric plated with nickel or copper, or a conductive elastomer film or an insulating elastomer film that has been made conductive by conductive paint or vapor deposition. 1 electrode 3
is formed.

A second electrode 4 is formed parallel to the support plate 1 on the upper surface of the elastic covering material 7 at a position separated from the support plate 1 by a predetermined length. Electrode 4
is formed of the same member as the first electrode 3 described above.

The upper surface of the first electrode 3 is made of an insulating material such as polyester or urethane, and is cut to a thickness of 10 to 100 mm, the same or slightly smaller than the support plate 1.
An elongated spacer 2 of micron (more preferably 40 to 60 micron) is provided. As shown in the figure, the spacer 2 has a continuous opening window 2a in the shape of, for example, an equilateral triangle, and the surface of the first electrode 3 is exposed through the opening window 2a.

Further, a lead wire 5 and a lead wire 6 are connected to the right end portions of the first electrode 3 and the second electrode 4, respectively, by, for example, soldering, conductive adhesive, or other appropriate means.

A tape-shaped touch switch having the structure shown in FIG. 3 is fixed on the support plate 1 side, and the electrodes 4 of the tube 2 are sequentially bent toward the support plate 1 side, and then the upper end side of the elastic covering material 7 is bent. When wrapped around the back side of the support plate 1, its cross section becomes as shown in FIG.

In addition, the above 1. The second electrodes 3 and 4 are cut to the same size as the support plate 1 or slightly smaller, and are formed to have a thickness of 100 microns to 1 millitorr (more preferably 50 to 300 microns). This is preferable, and by doing so, it is possible to improve the on/off performance when turning on/off the electrodes 3.4 by a small external force applied from above and below the electrodes 3, 4, and to achieve high sensitivity and flexibility of the switch itself. improved and durability.

Here, the spacer 2 has an equilateral triangular opening window 2.
Case a is shown, but the opening window 2 is not necessarily limited to an equilateral triangle, but has a rectangular shape as shown in Fig. 4.
b, polygons such as pentagon, 2 hexagons, or a combination thereof may be used. Also, Figures 3 and 4
In the figure, only one row of spacers is shown in the longitudinal direction, but instead of one row, two, three, or more rows may be selected as appropriate depending on the width of the spacer. It is possible.

However, it is necessary to select the optimal opening area for each opening window in order to have high-sensitivity on-off performance, avoid applying external forces, and prevent accidental conduction. , preferably 0.1 to 5 square centimeters (more preferably 0.3 to 1 square centimeter), and the opening windows are arranged with a gap of 3 mm or less (more preferably 1 mm). It is better to mold it.

The tape-like touch switch constructed as described above is
It is extremely thin with a total thickness of 1 to 4 mm in the operating direction, and it has been confirmed that it has an on/off function with an external force of less than a few tens of grams. Furthermore, experiments have shown that its durability is equivalent to or higher than conventional switches. Confirmed.

In order to improve mass productivity, both of the support plate 1 and the spacer 2 are made of thermoplastic polyurethane, and the first
When the second electrodes 3 and 4 are made of a thermoplastic polyurethane film made conductive with silver paste, etc., and the elastic covering material 7 is also made of thermoplastic polyurethane, each of these members is By arranging them in the structure and applying real-melt adhesive processing using an ultrasonic welder or the like, it becomes possible to integrate them, and the number of manufacturing steps can be significantly reduced.

〔effect〕

According to the present invention, since the tape-like touch switch is thin, long, and highly sensitive, it can be easily installed in narrow spaces such as elevators and escalators.

In addition, since it is equipped with a flat support plate, it can be easily attached to the desired location using adhesives, adhesive tapes, etc. without any special efforts.Furthermore, the structure is suitable for mass production, making it extremely inexpensive. We can supply tape-like touch switches.

[Brief explanation of drawings]

FIG. 1 is an external view of a tape-like touch switch showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the tape-like touch switch shown in FIG. 1, taken along the line ■-■. FIG. 3 is an exploded perspective view of the tape-like touch switch shown in FIG. 1, and FIG. 4 is a plan view showing an example of a spacer used in the tape-like touch switch shown in FIG. 1. 1...Support plate. 2...Spacer. 2a...opening window. 3...First electrode. 4...Second electrode. 5.6... Lead wire. 7...Elastic covering material.

Claims (1)

[Claims] 1. An insulating and flexible band-shaped support plate, a pair of band-shaped electrodes arranged on the surface of this support plate, and an insulating and flexible support plate interposed between the pair of electrodes. A band-shaped spacer that is flexible and has an opening window, lead wires that are individually connected to the pair of electrodes, and connection portions between the support plate, the pair of electrodes, the spacer, the electrodes, and the lead wires. A tape-shaped touch switch characterized by comprising an elastic covering material that seals the entire surface, and the following.