US 4,991,056 A · Case for electronic units

Abstract

A case is provided for electronic units forming an electronic equipment such as a programmable controller. The case includes a box-type case proper for containing a printed circuit board having connectors to form an electronic circuit, a panel including a terminal board mounting portion and an indicator section for displaying preset values, an indicator section cover for covering a part of the indicator section of the panel, and a cover for covering the upper part of the panel whereby these components are easily combined without using screws or the like. Also, a marking sheet having a color which differs for different types of units can be mounted on the panel. Further, when used as the case for ordinary electronic units, a ground terminal fitting is attached to the back surface of the case proper in manner that the ground terminal fitting is connected to a ground member of a printed circuit board contained in the case proper, and mounting the case on a mother board connects the ground terminal fitting to a ground terminal formed on the mother board.

Claims3

Dependent claims

A case for electronic units comprising:

a box-type case proper including an opening formed at a front thereof, and a plurality of engaging holes formed in both side walls and at least one of the vertical walls thereof in the vicinity of said opening;
a panel including an indicator section portion formed on one side of an upper surface thereof, a locking portion formed on the other side of said upper surfrace, and a terminal board mounting portion formed between said indicator section and said locking portion, a plurality of lock pieces formed on a lower part of said indicator section to depend therefrom, and a plurality of projections formed on each of two lower sides of said terminal board mounting portion for engagement with corresponding ones of said engaging holes of said case proper;
an indicator section cover for covering a part of said indicator section of said panel;
and
a cover including a projecting piece formed at one end thereof so as to be fitted into a hole formed in said indicator section of said panel or said indicator section cover, and a locking member formed on a lower side of the other side thereof so as to be locked in said locking portion of said panel.

2 more elements

Dependencies are inferred from the claim text.

Case for electronic units

Life of this patent

Case for electronic units

Life of this patent

Abstract

Claims3