US4879954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable table
Assignee: Okamura Corp
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Filing: 1983-02-01
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Granted: 1989-11-14
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Expires: 2003-02-01
Abstract
Abstract Disclosed is a foldable table whose table plate may be readily and easily folded down with a single operation of a knob and restored back to its horizontal position simply by lifting up the table plate as a natural motion of bringing the table plate to such a position through the use of a pair of cams mounted on a table plate bracket. One of the cams keeps the table plate in its horizontal position by engaging a stopper pin fixed from a support while the other cam releasably engages the first cam to the engaged state.
Inventors
- 👤 Masahiko Sawamura
- 👤 Kouji Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:39
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
222 words
A support surface movable between two positions, comprising: means for movably supporting said support surface between two positions; an engagement pin fixedly mounted upon said means supporting said support surface; a first latching member pivotably mounted upon said support surface, and including first and second notched portions, said first notched portion being engageable with said engagement pin so as to retain said support surface in a first one of said two positions; a second latching member, fixedly secured directly upon a shaft rotatably mounted within said support surface, having a projection engageable with said second notched portion of said first latching member whereby said second latching member is disposed in a locked position so as to retain said first latching member in engagement with said engagement pin; spring-biasing means for interconnecting said first and second latching members together; and manually accessible lever means, fixedly connected directly to said shaft upon which said second latching member is fixedly secured, for rotating said shaft and said second latching member from said locked position to a release position so as to permit said first latching member to be disengaged from said engagement pin under the influence of said spring-biasing means whereby said support surface is able to be moved from said first one of said two positions to a second one of said two positions.
Claim 2
Dependent Claim
222 words
A support surface movable between two positions, comprising: means for movably supporting said support surface between two positions; an engagement pin fixedly mounted upon said means supporting said support surface; a first latching member pivotably mounted upon said support surface, and including first and second notched portions, said first notched portion being engageable with said engagement pin so as to retain said support surface in a first one of said two positions; a second latching member, fixedly secured directly upon a shaft rotatably mounted within said support surface, having a projection engageable with said second notched portion of said first latching member whereby said second latching member is disposed in a locked position so as to retain said first latching member in engagement with said engagement pin; spring-biasing means for interconnecting said first and second latching members together; and manually accessible lever means, fixedly connected directly to said shaft upon which said second latching member is fixedly secured, for rotating said shaft and said second latching member from said locked position to a release position so as to permit said first latching member to be disengaged from said engagement pin under the influence of said spring-biasing means whereby said support surface is able to be moved from said first one of said two positions to a second one of said two positions.
Claim 3
Dependent Claim
16 words
A support surface as set forth in claim 1, wherein: said support surface is a table-top.
Claim 4
Dependent Claim
35 words
A support surface as set forth in claim 2, wherein: said first one of said two positions defines a horizontal support mode; and said second one of said two positions defines a vertical storage mode.
Claim 5
Dependent Claim
29 words
A support surface as set forth in claim 1, wherein: said first and second notched portions of said first latching member are vertically spaced with respect to each other.
Claim 6
Dependent Claim
21 words
A support surface as set forth in claim 4, wherein: said first notched portion is disposed beneath said second notched portion.
Claim 7
Dependent Claim
29 words
A support surface as set forth in claim 1, wherein: the pivotal and rotatable axes of said first and second latching members, respectively, are disposed parallel to each other.
Claim 8
Dependent Claim
33 words
A support surface as set forth in claim 6, wherein: said spring-biasing means is connected to said first and second latching members at upper portions thereof above their respective pivotal and rotatable axes.
Claim 9
Dependent Claim
21 words
A support surface as set forth in claim 1, wherein: said manually accessible lever means is integral with said rotatable shaft.
Claim 10
Dependent Claim
18 words
A support surface as set forth in claim 8, wherein: said lever means comprises manually graspible control knobs.
References Cited (Backward Citations)
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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) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |