WO2009072865A2 - Extensible table with improved extension mechanism - Google Patents
Extensible table with improved extension mechanism Download PDFInfo
- Publication number
- WO2009072865A2 WO2009072865A2 PCT/MY2008/000180 MY2008000180W WO2009072865A2 WO 2009072865 A2 WO2009072865 A2 WO 2009072865A2 MY 2008000180 W MY2008000180 W MY 2008000180W WO 2009072865 A2 WO2009072865 A2 WO 2009072865A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- extension leaf
- top panel
- sliding frame
- extensible
- extension
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B1/00—Extensible tables
- A47B1/04—Extensible tables with supplementary leaves or drop leaves arranged at the periphery
- A47B1/05—Extensible tables with supplementary leaves or drop leaves arranged at the periphery the leaves being extensible by drawing-out
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B1/00—Extensible tables
- A47B1/04—Extensible tables with supplementary leaves or drop leaves arranged at the periphery
- A47B1/05—Extensible tables with supplementary leaves or drop leaves arranged at the periphery the leaves being extensible by drawing-out
- A47B2001/053—Extensible tables with supplementary leaves or drop leaves arranged at the periphery the leaves being extensible by drawing-out and liftable to the same height as the main table leaf
Definitions
- This invention relates to an extensible table with an improved extension mechanism.
- a primary objective of the present invention is to provide an extensible table with a stationary center top panel portion.
- Another objective of the present invention is to provide a user-friendly extension mechanism for a table that requires minimal use input.
- the present invention is an extensible table that has a stationary top panel fixed .to a main frame.
- a pair of slidable frames can be pulled away from the center of the table in a longitudinal direction and independently of each other. .
- an extension leaf stored below the top panel slides out.
- the direction of motion of the slidable frame is reversed so that it moves towards the center of the table. This then causes the extension leaf to rise up to the same height as the top panel so that it sits flush with the top panel and a continuous table-top surface is formed.
- the magnitude of extension from its initial length is equal to the length of the extension leaf.
- each slidable frame is again pulled away from the center of the table, towing the extension leaf along with it.
- a guide rail located on the underside of the extension leaf drops it back to its initial height.
- the slidable frame is then pushed inwards again, so the extension leaf slides underneath the top panel.
- the extension mechanism comprises: a main frame having a stationary top panel, a lower frame providing support on a ground surface, arid a pair of longitudinal side bars running along two opposing sides of main frame and located a distance below top panel; a sliding frame longitudinally slidable in relation to main frame having a pair of longitudinal side members and a cross member joining each of the side members at an outer end; an extension leaf with a pair of guide rails fixed to an underside, being able to move from an initial position whereby the extension leaf is stored underneath the stationary top panel and is held in place by a hook, to an extended position whereby the extension leaf is located flush alongside the top panel thus creating a continuous table-top surface, and back to the initial position; a means of moving the extension leaf from the initial position to the extended position; and a means of moving the extension leaf from the extended position back to the initial position.
- Figure 1 shows an overall view of an extensible table in an embodiment of the present invention in a contracted state.
- Figure 2 shows an overall view of an extensible table in an embodiment of the present invention in an extended state.
- Figure 3 shows an extension mechanism in an embodiment of the present invention in a contracted state.
- Figure 4 shows an extension mechanism in an embodiment of the present invention in a extended state.
- Figure 5 shows a top view of an extensible table in an embodiment of the present invention in an extended state.
- FIG. 1 to 5 an extensible table in an embodiment of the present invention is shown.
- a sliding frame (50) is pulled from an initial position in an outwards direction.
- a pair of guide pins (56) located on each of a pair of side members (52) fixed to two opposing sides of the sliding frame (50) engage a pair of guide rails (42) fixed to an extension leaf (40) thus pulling the extension leaf (40) outwards to a point whereby the extension leaf (40) is clear of the top panel (30) and a rotating pushing block (60).
- the motion of the sliding frame (50) is then reversed by pushing it inwards toward the top panel (30), thus causing the extension leaf (40) to move inwards as well, until the extension leaf (40) comes into contact with the pushing block (60) which deflects the inward motion of the extension leaf (40) and causes the extension leaf (40) to rise upwards to a height substantially equal that of the top panel (3O) 5 so that the inward motion of the extension leaf (40) is thus halted by the top panel (30) and the attached guide pins (56) slide along towards an inner end of the guide rails (42), the guide rails being inclined so that as the guide pins (56) are positioned at the inner end of guide rails (42) the guide pins (56) provide support for the extension leaf (40) at an elevated " -height substantially equal that of the top panel (30).
- the sliding frame (50) causes the guide pins (56) to slide along to an outer end of the guide rails (42) thus causing the extension leaf (40) to drop by the force of gravity back to its initial height.
- the outwards motion of the sliding frame (50) is then reversed, and it is pushed inwards before the extension leaf (40) clears the rotating pushing block (60) so that the extension leaf (40) slides back to its initial position underneath the top panel (30).
- the sliding frame (50) continues to move inwards until the inwards motion of the cross member (54) is halted by the top panel (30) and such that the top surface of the cross member (54) is flush with the top surface of the top panel (30) thus forming a continuous table top surface in this contracted state of the extensible table.
- the extension mechanism described here is for the extension of one side of the extensible table. In one embodiment of the present invention, there are two extension mechanisms located at opposing sides of the extensible table.
- extension mechanism may be used on any or all sides of the extensible table in any configuration.
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Abstract
An extensible table with a top panel (30) fixed to a main frame (10). A sliding frame (50) can be pulled away from the top panel. (30) thereby pulling along an extension leaf (40) stored below the top panel (30). When the extension leaf (40) is fully clear of the top panel (30), the sliding frame (50) is pushed towards the center of the table, causing the extension leaf (40) to rise up to the same height as the top panel (30) and a continuous table-top surface is formed. To transform the table back to its initial size, the sliding frame (50) is again pulled away from the center of the table, towing the extension leaf (40) along with it. A guide rail (42) located on the underside of the extension leaf (40) drops it back to its initial height. The sliding frame (50) is then pushed inwards again, so the extension leaf (40) slides underneath the top panel (30).
Description
EXTENSIBLE TABLE WITH IMPROVED EXTENSION MECHANISM
FIELD OF INVENTION
This invention relates to an extensible table with an improved extension mechanism.
BACKGROUND OF THE INVENTION
Many current extensible tables split then separate the main top panel outwards then in one way or another replace the empty space created in the center with an extension leaf, thereby producing an extended table-top surface. One problem with this method is it involves a number of steps for the user, that is first separating the top panels, then engaging into operation the center extension leaf. Another problem is that this type of extension method does not allow for accessories that require static center portions such as pole umbrellas and the like.
Some inventions have tried to overcome this limitation by having a narrow static center top panel, and extension leafs that are engaged on both sides of this narrow center portion after the top panels on either side of this center panel have been moved away. While this method works, it is somewhat more complicated as it requires a mechanism to engage two extension leafs into place instead of just one.
Also known in the current state of the art are extensible tables with a stationary center top panel portion and foldable side panels as the extension mechanism. While these types of tables have the benefit of a stationary center portion, and are relatively less complex in terms of the mechanism, the foldable side panels require a higher degree of user input to engage the extension mechanism. Furthermore, the foldable side panels are cumbersome and need a relatively large clearance during the folding and unfolding operation. This design also typically has a lower structural integrity when extended.
Therefore, what is needed in the art is an extensible table of sturdy design that has a stationary center top panel portion with extension leafs on the side having an easy to operate extension mechanism requiring minimal user input.
A primary objective of the present invention is to provide an extensible table with a stationary center top panel portion.
Another objective of the present invention is to provide a user-friendly extension mechanism for a table that requires minimal use input.
SUMMARY OF THE INVENTION
The present invention is an extensible table that has a stationary top panel fixed .to a main frame. A pair of slidable frames can be pulled away from the center of the table in a longitudinal direction and independently of each other.. As each slidable .frame is pulled away from the center, an extension leaf stored below the top panel slides out. When the extension leaf is fully clear of the top panel, the direction of motion of the slidable frame is reversed so that it moves towards the center of the table. This then causes the extension leaf to rise up to the same height as the top panel so that it sits flush with the top panel and a continuous table-top surface is formed. The magnitude of extension from its initial length is equal to the length of the extension leaf. To transform the table back to its initial size, each slidable frame is again pulled away from the center of the table, towing the extension leaf along with it. A guide rail located on the underside of the extension leaf drops it back to its initial height. The slidable frame is then pushed inwards again, so the extension leaf slides underneath the top panel.
In one embodiment of the present invention the extension mechanism comprises: a main frame having a stationary top panel, a lower frame providing support on a ground surface, arid a pair of longitudinal side bars running along two opposing sides of main frame and located a distance below top panel; a sliding frame longitudinally slidable in
relation to main frame having a pair of longitudinal side members and a cross member joining each of the side members at an outer end; an extension leaf with a pair of guide rails fixed to an underside, being able to move from an initial position whereby the extension leaf is stored underneath the stationary top panel and is held in place by a hook, to an extended position whereby the extension leaf is located flush alongside the top panel thus creating a continuous table-top surface, and back to the initial position; a means of moving the extension leaf from the initial position to the extended position; and a means of moving the extension leaf from the extended position back to the initial position.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows an overall view of an extensible table in an embodiment of the present invention in a contracted state.
Figure 2 shows an overall view of an extensible table in an embodiment of the present invention in an extended state.
Figure 3 shows an extension mechanism in an embodiment of the present invention in a contracted state.
Figure 4 shows an extension mechanism in an embodiment of the present invention in a extended state.
Figure 5 shows a top view of an extensible table in an embodiment of the present invention in an extended state.
DETAILED DESCRIPTION OF THE INVENTION
It should be noted that the following detailed description is directed to an extensible table and mechanism and is not limited to any particular size, shape or configuration of the table.
Referring to Figures 1 to 5, an extensible table in an embodiment of the present invention is shown. A sliding frame (50) is pulled from an initial position in an outwards direction. A pair of guide pins (56) located on each of a pair of side members (52) fixed to two opposing sides of the sliding frame (50) engage a pair of guide rails (42) fixed to an extension leaf (40) thus pulling the extension leaf (40) outwards to a point whereby the extension leaf (40) is clear of the top panel (30) and a rotating pushing block (60). The motion of the sliding frame (50) is then reversed by pushing it inwards toward the top panel (30), thus causing the extension leaf (40) to move inwards as well, until the extension leaf (40) comes into contact with the pushing block (60) which deflects the inward motion of the extension leaf (40) and causes the extension leaf (40) to rise upwards to a height substantially equal that of the top panel (3O)5 so that the inward motion of the extension leaf (40) is thus halted by the top panel (30) and the attached guide pins (56) slide along towards an inner end of the guide rails (42), the guide rails being inclined so that as the guide pins (56) are positioned at the inner end of guide rails (42) the guide pins (56) provide support for the extension leaf (40) at an elevated" -height substantially equal that of the top panel (30). Further pushing the sliding frame (50) inwards until the inwards motion of a cross member (54) located perpendicular to and joining the ends of the two side members (52) is halted by the extension leaf (40) and such that a top surface of the cross member (54) is flush with a top surface of the extension leaf (40) and a top surface of the top panel (30) thus forming a continuous table top surface in this extended state of the extensible table.
Still referring to Figures 1 to 5, in order to return the extensible table back to its initial, contracted state, the sliding frame (50) is again pulled outwards. The extension leaf (40) is held in place by a hook (70) and does not move in a horizontal direction. The
outward movement of the sliding frame (50) in relation to the stationary extension leaf
(40) causes the guide pins (56) to slide along to an outer end of the guide rails (42) thus causing the extension leaf (40) to drop by the force of gravity back to its initial height. The outwards motion of the sliding frame (50) is then reversed, and it is pushed inwards before the extension leaf (40) clears the rotating pushing block (60) so that the extension leaf (40) slides back to its initial position underneath the top panel (30). The sliding frame (50) continues to move inwards until the inwards motion of the cross member (54) is halted by the top panel (30) and such that the top surface of the cross member (54) is flush with the top surface of the top panel (30) thus forming a continuous table top surface in this contracted state of the extensible table.
The extension mechanism described here is for the extension of one side of the extensible table. In one embodiment of the present invention, there are two extension mechanisms located at opposing sides of the extensible table.
Similarly, it is understood that the extension mechanism may be used on any or all sides of the extensible table in any configuration.
While several particularly preferred embodiments of the present invention have been described and illustrated, it should now be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, the following claims are intended to embrace such changes, modifications, and areas of application that are within the spirit and scope of this invention.
Claims
1. An extensible table comprising: a main frame (10) having a stationary top panel (30), the main frame (10) providing support on a ground surface;
5 a sliding frame (50) longitudinally slidable in relation to main frame (10); and an extension leaf (40) able to move in a reversible and repeatable fashion from an initial state whereby the extension leaf (40) is stored underneath the stationary top panel (30), to an extended state whereby the extension leaf (40) is located flush alongside the top panel (30) thus creating a continuous table-top surface.
LO 2. An extensible table according to claim I5 wherein the extension leaf (40) is moved from the initial state to the extended state by: a) pulling the sliding frame (50) in an outwards direction so that at least one guide pin
(56) located on a side member (52), with two side members (52) located longitudinally on opposing ends of the slidable frame (50) engages at least one guide rail (42) fixed
15 to the extension leaf (40) so that the extension leaf (40) slides outwards until a point whereby the extension leaf is entirely clear of the top panel (30) and a rotatable pushing block (60); b) pushing the sliding frame (50) inwards until the extension leaf (40) comes into contact with the pushing block (60), the pushing block (60) deflecting the inward
10 motion of the extension leaf (40) so that it rises up to a height substantially equal to that of the top panel (30), so that the inward motion of the extension leaf (40) is halted by the top panel (30), and the at least oae guide pin (56) sliding along and to an inner end of each of the at least one guide rail (42), the guide rail (42) having an incline such that the positioning of the guide pin (56) at the inner end of the guide rail (42) provides
25 support for the extension leaf (40) at this elevated height; and c) further pushing the sliding frame (50) inwards until the inward motion of a cross member (54) located perpendicular to and joining the ends of the two side members (52) is halted by the extension leaf (40) and such that a top surface of the cross member (54) is flush with a top surface of the extension leaf (40) and a top surface of ϊθ the top panel (30) thus forming a continuous table top surface in this extended state. 000180
- 7 -
3. An extensible table according to claims 1 or 2, wherein the extension leaf (40) is moved from the extended state to the initial state by: a) pulling the sliding frame (50) in an outwards direction, and the extension leaf (40) is held in place by a hook (70), so that the outwards motion of the sliding frame (50) in relation to the extension leaf (40) causes the at least one guide pin (56) to slide to an outer end of each of the at least one :.guide rail (42) so that the guide rail (42) drops down to its initial height; b) reversing the outwards motion of the sliding frame (50) into an inwards motion before an inner end of the extension leaf (40) clears the pushing block (60) so that the extension leaf (40) slides to its initial position underneath the top panel (30); and c) further pushing the sliding frame (50) inwards until the inward motion of the cross member (54) is halted by the top panel (30) and such that the top surface of the cross member (54) is flush with a top surface of the top panel (30) thus forming a continuous table top surface in this contracted state.
4. An extensible table according to claims 2 or 3, wherein there are two guide pins (56) engaged to two guide rails (42) on each side member (52).
5. An extensible ta'ble according to any of the preceding claims, with two opposing sides of the table extensible in this fashion and independently of each other.
6. An extensible table according to any of the preceding claims, with more than one side of the table extensible in this fashion and independently of each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08858251A EP2229074B1 (en) | 2007-12-05 | 2008-12-05 | Extensible table with improved extension mechanism |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI20072170 | 2007-12-05 | ||
MYPI20072170A MY155305A (en) | 2007-12-05 | 2007-12-05 | Extensible table with improved extension mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009072865A2 true WO2009072865A2 (en) | 2009-06-11 |
WO2009072865A3 WO2009072865A3 (en) | 2009-10-22 |
Family
ID=40718386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/MY2008/000180 WO2009072865A2 (en) | 2007-12-05 | 2008-12-05 | Extensible table with improved extension mechanism |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2229074B1 (en) |
MY (1) | MY155305A (en) |
WO (1) | WO2009072865A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100399832C (en) * | 2005-01-26 | 2008-07-02 | 威盛电子股份有限公司 | Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456835A (en) * | 1944-07-31 | 1948-12-21 | American Fixture & Mfg Co | Refectory table |
CH441652A (en) * | 1966-12-23 | 1967-08-15 | Bolleter Emil | Extension table |
DE2600753C3 (en) * | 1976-01-10 | 1978-09-28 | Karl Vierhaus Tischfabrik Und Einzelhandel In Moebel, 4242 Rees | Extending table, especially height-adjustable extending table |
DE20321213U1 (en) * | 1984-02-16 | 2006-05-11 | Möbelfabrik Seon AG | Extending tabletop forming part of table for domestic use has drawer mechanism with rollers and telescopic sliding rails moving extension piece out from under fixed tabletop |
US5577450A (en) * | 1995-04-26 | 1996-11-26 | Huang; Chien-Hsiung | Variable-length table |
US5709157A (en) * | 1996-03-12 | 1998-01-20 | Tadeusz J. Hanusiak | Slidable locking mechanism for supporting a drop-leaf table extension |
KR200191434Y1 (en) * | 2000-02-28 | 2000-08-16 | 김호열 | Computer table with slide type printer support |
DE20003897U1 (en) * | 2000-03-03 | 2000-04-27 | Dipl.-Ing. Erwin Mesch Freizeitmöbel GmbH & Co KG, 32657 Lemgo | Extending table |
JP2002136342A (en) * | 2000-10-31 | 2002-05-14 | Kokuyo Co Ltd | Table |
-
2007
- 2007-12-05 MY MYPI20072170A patent/MY155305A/en unknown
-
2008
- 2008-12-05 WO PCT/MY2008/000180 patent/WO2009072865A2/en active Application Filing
- 2008-12-05 EP EP08858251A patent/EP2229074B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of EP2229074A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100399832C (en) * | 2005-01-26 | 2008-07-02 | 威盛电子股份有限公司 | Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP2229074A4 (en) | 2011-04-27 |
MY155305A (en) | 2015-09-30 |
EP2229074A2 (en) | 2010-09-22 |
EP2229074B1 (en) | 2012-08-29 |
WO2009072865A3 (en) | 2009-10-22 |
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