JPH0132665Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a keyboard switch that has wide applicability as an operation input switch means for various electrical and electronic devices, and particularly when the matrix of the keyboard switch having a plurality of switch operation parts is complex, This invention relates to a keyboard switch that allows for a wide range of routing.

As shown in FIG. 1, a conventional keyboard switch 1 includes a base member 3 on which a plurality of fixed contact patterns 2 are formed, and a position corresponding to each fixed contact pattern 2 in the upper part of the base member 3. , a switch sheet 5 on which a movable contact pattern 4 is formed separately, an insulating spacer 7 disposed to form a switch operation gap 6 between the base member 3 and the switch sheet 5, and a space between these components. It basically consists of a bonding layer 8 to be bonded.

For such keyboard switch 1,
To configure the matrix as a keyboard,
As shown in FIG. 2, there are cases where a conductor pattern 10 connecting an outlet 9 to the outside and a fixed contact pattern 2 is arranged between adjacent fixed contact patterns 2, and if the matrix becomes complicated, the conductor pattern 10
Since the number of contacts increases, there is a problem in that it may not be possible to arrange the contacts between the fixed contact patterns 2.

The present invention aims to provide a keyboard switch that solves the above-mentioned problems, and its features include a base member having a required number of fixed contact patterns, and an upper part of the base member in which the fixed contact pattern In a keyboard switch having a switch operation gap formed between a switch sheet and a switch sheet having a movable contact pattern formed at a position corresponding to the pattern, at least one of a fixed contact pattern or a movable contact pattern formed in the switch operation gap. The conductor patterns are disposed adjacent to each other at intervals of , and the ends of the fixed contact pattern and the movable contact pattern on the opposite conductor pattern side are formed short.

Embodiments of the present invention will be described below based on the drawings. Note that the same elements as those in the conventional example shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 3 shows an embodiment of the present invention.
10 is a conductor pattern;
is disposed on the base member 3 between the fixed contact pattern 2 and the spacer 7 so as not to come into contact with the fixed contact pattern 2 formed in the switch operation gap 6, and also so as not to come into contact with the movable contact pattern 4. The ends of the movable contact pattern 4 on the opposite conductor pattern 10 side are arranged adjacent to each other at a sufficient distance from the fixed contact pattern 2.
It is formed shorter than.

In this embodiment, the conductor pattern 10 is arranged on the base member 3, but it can also be arranged on the switch sheet 5.

Conventionally, as shown in FIG. 2, when there are a large number of conductor patterns 10 between adjacent fixed contact patterns 2 that connect the patterns 2 and the outlet 9 to the outside, the connection layer is 8
Although the conductor patterns 10 were disposed only inside the switch operation gap 6, according to the above embodiment, these conductor patterns 10 can be disposed within the switch operation gap 6. When the switch is operated, the upper and lower contact patterns 2 and 4 come into contact, but the conductor pattern 10
are fixed contact pattern 2 and movable contact pattern 4
It can be used in a well-insulated state without coming into contact with the

FIG. 4 shows another embodiment of the present invention, in which a conductor pattern 10 is arranged on the base member 3 and the switch sheet 5 in the same manner as in the above embodiment, and a fixed contact pattern is provided on the opposite conductor pattern side. 2 and the movable contact pattern 4 are formed shorter than the other movable contact pattern 4 and the fixed contact pattern 2, respectively.

According to this embodiment having the above configuration, in addition to the effects of the first embodiment, it is possible to further increase the packaging density.

According to the keyboard switch according to the present invention, it is possible to expand the routing range of the conductor patterns of the keyboard switch, which is becoming increasingly diverse and complex, with a simple structure, and therefore the mounting density can be increased.
It enables the higher performance, smaller size, and lower cost required for today's electronics.

[Brief explanation of the drawing]

FIG. 1 is a conceptual cross-sectional structural diagram showing a conventional keyboard switch, FIG. 2 is a perspective view of a base member, FIG. 3 is a conceptual cross-sectional structural diagram of a keyboard switch showing an embodiment of the present invention, and FIG. The figure is a conceptual cross-sectional structural diagram of a keyboard switch showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Keyboard switch, 2, 4... Contact pattern, 3... Base member, 5... Switch sheet, 6... Switch operation gap, 10... Conductor pattern.

Claims (1)

[Scope of utility model registration request] A switch operation gap is formed between a base member having a required number of fixed contact patterns and a switch sheet, which is an upper part of the base member and has movable contact patterns formed at positions corresponding to the fixed contact patterns. In the keyboard switch,
A conductive pattern is arranged adjacent to at least one of the fixed contact pattern and the movable contact pattern formed in the switch operation gap at a distance, and the fixed contact pattern and the movable contact pattern on the opposing conductor pattern side. A keyboard switch characterized by having a short end.