US3794397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically adjustable school desk with an inclined top
Assignee: Individual
•
Filing: 1972-06-21
•
Granted: 1974-02-26
•
Expires: 1992-06-21
Abstract
Abstract A school desk comprises an oblique desk top arranged between two spaced vertical side boards. The desk has a compartment on which the side of the desk remote from the user, which adjoins the desk top, extends over the whole width of the desk and is accessible from above. A covering board of the compartment is capable of being slid between a closing position and an oblique use position and a non-use position in which the covering board is covered by the top of the desk. This sliding movement is made possible by means of guide grooves and guide rails arranged on the inner side of the desk. On each side of the desk there is a lower support and each such support is adapted to be slid into a cavity between the associated side board and the compartment side wall spaced from the side board. The support can be attached in a detachable manner at different vertical positions on the side wall of the compartment. On the side remote from the user of the desk the desk top is connected by means of a hinge at the top of the front wall of each support accommodating space. The upper connecting board extends at the same height as the surface of the covering board in the closing position and on the extended compartment side wall the guides for the covering board are arranged. In the oblique position the covering board lies on a frame board connected integrally with the desk side boards and the front wall. In a coplanar position it lies with the covering board in its closing position on the support rail, which is pivoted on the side, adjacent to the user, of the frame board and can be swung upwards into a vertical support position.
Inventors
- 👤 F Flototto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:40
CPC Classifications
A; A47; A47B; A47B41/00; A47B41/02; A47B2200/00; A47B2200/0035; A47B2200/004; A47B2200/0043
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
377 words
A school desk comprising a desk top arranged between two spaced side boards, said desk top having an upper surface and a lower surface and having a front edge, a rear edge and lateral edges extending therebetween; a compartment disposed rearwardly of and adjacent to said desk top, said compartment extending across substantially the entire width of the desk, being accessible from above and including front and rear walls; a covering board for said compartment; compartment side walls spaced inwardly from said side boards and defining, with said side boards and said compartment front and rear walls, a pair of support cavities; guide grooves and guide rails arranged on said side walls and extensions thereof for permitting sliding movement of said covering board between a horizontal closing position in which said covering board closes said compartment, an oblique non-use position in which said covering board is disposed beneath said desk top and an oblique use position; a pair of desk supports for supporting said desk on a floor, each said support having an upper portion detachably secured to a respective side wall within a respective support cavity, the length of said supports located within said support cavities being selected from a plurality of predetermined lengths to achieve a desired height of the desk above the floor; closing boards covering the tops of said support cavities and coplanar with said covering board when said covering board is in its horizontal closing position; hinge means connecting said desk top to the front walls of said support cavities; a frame board underlying said desk top and fixedly connected to said side boards and supporting the front end of said desk top when said desk top is in a forwardly downwardly inclined position; and a supporting rail for said desk top, pivotally connected to said frame board adjacent the front end of said frame board, said pivotal connection providing for pivoting of said supporting rail between a generally horizontal position in which said desk top is inclined forwardly downwardly, and a generally vertical position in which said desk top engages said supporting rail in such manner as to maintain said desk top in an elevated horizontal position generally coplanar with said closing boards and said covering board in its closing position.
Claim 2
Dependent Claim
377 words
A school desk comprising a desk top arranged between two spaced side boards, said desk top having an upper surface and a lower surface and having a front edge, a rear edge and lateral edges extending therebetween; a compartment disposed rearwardly of and adjacent to said desk top, said compartment extending across substantially the entire width of the desk, being accessible from above and including front and rear walls; a covering board for said compartment; compartment side walls spaced inwardly from said side boards and defining, with said side boards and said compartment front and rear walls, a pair of support cavities; guide grooves and guide rails arranged on said side walls and extensions thereof for permitting sliding movement of said covering board between a horizontal closing position in which said covering board closes said compartment, an oblique non-use position in which said covering board is disposed beneath said desk top and an oblique use position; a pair of desk supports for supporting said desk on a floor, each said support having an upper portion detachably secured to a respective side wall within a respective support cavity, the length of said supports located within said support cavities being selected from a plurality of predetermined lengths to achieve a desired height of the desk above the floor; closing boards covering the tops of said support cavities and coplanar with said covering board when said covering board is in its horizontal closing position; hinge means connecting said desk top to the front walls of said support cavities; a frame board underlying said desk top and fixedly connected to said side boards and supporting the front end of said desk top when said desk top is in a forwardly downwardly inclined position; and a supporting rail for said desk top, pivotally connected to said frame board adjacent the front end of said frame board, said pivotal connection providing for pivoting of said supporting rail between a generally horizontal position in which said desk top is inclined forwardly downwardly, and a generally vertical position in which said desk top engages said supporting rail in such manner as to maintain said desk top in an elevated horizontal position generally coplanar with said closing boards and said covering board in its closing position.
Claim 3
Dependent Claim
21 words
A school desk according to claim 1 wherein said supporting rail extends across substantially the entire width of said frame board.
Claim 4
Dependent Claim
44 words
A school desk according to claim 1 wherein said frame board includes a front framing edge with said supporting rail pivotal connection positioned directly therebehind, and wherein said supporting rail is positioned to abut said front framing edge when in said generally vertical position.
Claim 5
Dependent Claim
59 words
A school desk according to claim 1 wherein said frame board is provided with an opening located beneath and adjacent to said supporting rail when said supporting rail is in its generally horizontal position, whereby a user may insert his hand through said opening to manipulate said supporting rail between said generally horizontal position and said generally vertical position.
Claim 6
Dependent Claim
44 words
A school desk according to claim 1 wherein the rear edge of said desk top has a convex profile and the adjacent surfaces of said front walls of said support cavities and the front edge of said covering board include a corresponding concave profile.
Claim 7
Dependent Claim
37 words
A school desk according to claim 1 wherein said side boards, said compartment side walls, said compartment front and rear walls, said vertical side boards and said frame board comprise a single moulded component of synthetic resin.
Claim 8
Dependent Claim
73 words
A school desk according to claim 1 further comprising an arm provided adjacent each lateral edge of said desk top on the lower surface thereof, each said arm having an abutment head at one end thereof; and an inwardly projecting counter abutment provided on each side board and positioned to engage the corresponding abutment head arm when said desk top is pivoted about said hinge means to an extreme forwardly upwardly projecting position.
Claim 9
Dependent Claim
15 words
A school desk according to claim 1 wherein said frame board comprises a receptacle trough.
Claim 10
Dependent Claim
84 words
A school desk according to claim 1 further comprising a supporting rail setting lever including a shank and an angled handle, said lever connected to and extending transversely of said supporting rail, whereby movement of said lever transversely of said supporting rail may actuate said supporting rail between said generally horizontal position and said generally vertical position; and a guide slot formed in said frame board for guiding said lever, said slot extending transversely of said support rail, with said lever handle extending therethrough.
Claim 11
Dependent Claim
48 words
A school desk according to claim 9 wherein said frame board further includes an upwardly extending raised portion, open from below, with said upwardly extending portion being provided with said guide slot, whereby said setting lever handle may move within said raised portion during said supporting rail actuation.
Claim 12
Dependent Claim
128 words
A school desk according to claim 9 wherein said connection between said lever and said supporting rail comprises a pair of spaced, elongated bearing eyes formed on said supporting rail and a pin extending through said lever shank distal said handle and engaging said bearing eyes for rotational and translational movement therewith, and wherein said setting lever is provided with two pairs of sliding members adapted to cooperate with two pairs of ramp members formed on said frame board adjacent said guide slot and extending longitudinally thereof, whereby movement of said setting lever longitudinally of said slot may cause a portion of said setting lever to be lifted or lowered, thus causing said supporting rail to be moved between said generally horizontal position and said generally vertical position.
References Cited (Backward Citations)
US764832A
Cited
FR432957A
Cited
US1705151A
Cited
US1999157A
Cited
US1959761A
Cited
CH176884A
Cited
US2215657A
Cited
US2341914A
Cited
US2459257A
Cited
US2567536A
Cited
US2659649A
Cited
US3208409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |