US4991056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Case for electronic units
Assignee: Koyo Electronics Industries Co Ltd
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Filing: 1989-09-28
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Granted: 1991-02-05
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Expires: 2009-09-28
Abstract
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.
Inventors
- 👤 Norio Shimizu
- 👤 Yuichi Watanabe
- 👤 Hitoshi Manta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:21
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1462; H05K7/1481; H05K7/1467; H05K7/1475; H05K7/1477
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
209 words
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.
Claim 2
Dependent Claim
209 words
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.
Claim 3
Dependent Claim
39 words
A case for electronic units according to claim 1, further comprising a marking sheet having a color which differs for different types of units, said marking sheet being interposed between said indicator section of said panel and said cover.
Claim 4
Dependent Claim
137 words
A case for electronic units comprising: a case proper including a pair of slots formed in a back surface thereof apart from each other by a given distance, and a hole formed therethrough between said slots; a ground terminal fitting including a pair of leg portions adapted for insertion into the pair of slots of said case proper; and a ground member attached to a printed wiring board adapted for insertion into said case proper, said ground member being positioned nearby said hole of said case proper; whereby the leg portions of said ground terminal fitting are fitted into the slots of said case proper, and a screw inserted through an engaging hole of said ground terminal fitting is threaded into a threaded hole formed in said ground member through the hole formed in said case proper.
Claim 5
Dependent Claim
137 words
A case for electronic units comprising: a case proper including a pair of slots formed in a back surface thereof apart from each other by a given distance, and a hole formed therethrough between said slots; a ground terminal fitting including a pair of leg portions adapted for insertion into the pair of slots of said case proper; and a ground member attached to a printed wiring board adapted for insertion into said case proper, said ground member being positioned nearby said hole of said case proper; whereby the leg portions of said ground terminal fitting are fitted into the slots of said case proper, and a screw inserted through an engaging hole of said ground terminal fitting is threaded into a threaded hole formed in said ground member through the hole formed in said case proper.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |