US4901204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing unit for securely mounting printed circuit boards relatively movable between two positions
Assignee: Kitagawa Industries Co Ltd
•
Filing: 1988-04-27
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Granted: 1990-02-13
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Expires: 2008-04-27
Abstract
Abstract A two-part securing unit wherein the interconnection of the two parts is assured once they are assembled. The securing is useful in securely fixing at least two printed circuit boards in parallel relation, the securing unit being attachable to a chassis or to another form of fixed plate. The two parts of the securing unit are relatively pivotable, whereby the outermost board may be moved to an open state to allow easy repair or inspection. The securing unit is capable of holding the two plates rigidly in the open state, such that repair or inspection may proceed without the necessity of manually supporting the outermost board in its open state.
Inventors
- 👤 Yoshitoki Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:16
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; F16B5/0607; H; H05; H05K; H05K7/00; H05K7/14; H05K7/1417; H05K7/142; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/309; Y10T24/34; Y10T24/3427; Y10T24/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
A securing unit which holds a first board at a predetermined distance from a fixed board and movably mounts a second board such that said second board is movable between open and closed states with respect to said first board, comprising: a bottom plate; fastening means extending from a first surface of said bottom plate and fixing said bottom plate on said fixed board; a first mounting member extending from a second surface of said bottom plate and comprising means securely mounting said first board with respect to said bottom plate; a coupling plate extending from said second surface of said bottom plate; a mounting portion comprising a second mounting member, said second mounting member comprising elastic detent means engaging said second board and securely mounting said second board on said mounting portion; pivotal mounting means pivotally mounting said mounting portion on said coupling plate such that said mounting portion is pivotable so as to move said second board between said open and closed states; and stopper means restricting the range of pivotal movement of said mounting portion.
Claim 2
Dependent Claim
178 words
A securing unit which holds a first board at a predetermined distance from a fixed board and movably mounts a second board such that said second board is movable between open and closed states with respect to said first board, comprising: a bottom plate; fastening means extending from a first surface of said bottom plate and fixing said bottom plate on said fixed board; a first mounting member extending from a second surface of said bottom plate and comprising means securely mounting said first board with respect to said bottom plate; a coupling plate extending from said second surface of said bottom plate; a mounting portion comprising a second mounting member, said second mounting member comprising elastic detent means engaging said second board and securely mounting said second board on said mounting portion; pivotal mounting means pivotally mounting said mounting portion on said coupling plate such that said mounting portion is pivotable so as to move said second board between said open and closed states; and stopper means restricting the range of pivotal movement of said mounting portion.
Claim 3
Dependent Claim
37 words
A securing unit as claimed in claim 1, further comprising means formed on said coupling plate and said mounting portion preventing said mounting portion from coming off of said coupling plate in response to shocks and vibrations.
Claim 4
Dependent Claim
49 words
A securing unit as claimed in claim 1, wherein said pivotal mounting means comprises: a groove formed in said mounting portion and receiving said coupling plate therein; shaft means extending from opposite surfaces of said coupling plate; and through-holes formed in said mounting portion and receiving said shaft means.
Claim 5
Dependent Claim
43 words
A securing unit as claimed in claim 3, further comprising a tapered surface formed on said mounting portion at a closed end of said groove, said tapered surface comprising said stopper means restricting the pivotal movement of said mounting portion in one direction.
Claim 6
Dependent Claim
30 words
A securing unit as claimed in claim 5, wherein said mounting portion further comprises tapered notches adjacent an open end of said groove and facilitating assembly of said securing unit.
Claim 7
Dependent Claim
39 words
A securing unit as claimed in claim 1, including a rib in the form of a rigid planar wall extending from an edge of said second surface of said bottom plate, perpendicular to and connected to said coupling plate.
Claim 8
Dependent Claim
97 words
A securing unit as claimed in claim 1, wherein said second board is substantially parallel to said first board in said closed state thereof and said second board forms an angle with said first board in said open state thereof, said stopper means comprising a rib having a side surface and an end surface, said mounting portion having a planar end surface for abutting said side surface of said rib when said second board is in said closed state and for abutting said end surface of said rib when said second board is in said open state.
Claim 9
Dependent Claim
68 words
A securing unit as claimed in claim 7, further comprising means preventing said mounting portion from coming off of said coupling plate in response to shocks and vibrations, said prevent means comprising pins projecting from opposite surfaces of said coupling plate and pin receiving holes formed in said mounting portion, said pins being engageable with said pin receiving holes when said second board is in said open state.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |