EP3785570B1 - Chair seat with sliding and locking mechanism - Google Patents
Chair seat with sliding and locking mechanism Download PDFInfo
- Publication number
- EP3785570B1 EP3785570B1 EP19194518.7A EP19194518A EP3785570B1 EP 3785570 B1 EP3785570 B1 EP 3785570B1 EP 19194518 A EP19194518 A EP 19194518A EP 3785570 B1 EP3785570 B1 EP 3785570B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding
- positioning tube
- positioning
- seat
- chair seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims description 30
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002650 habitual effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
- A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
- A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
- A47C1/03244—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism positioned under the arm-rests
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
Definitions
- the present invention relates to a chair seat with a sliding and locking mechanism and, more particularly, to a chair seat with a mechanism for reliably locking the chair seat in a desired position.
- Conventional leisure chairs permitting position adjustment for sitting and lying generally include a rod fixed on a base.
- a locking mechanism is slidably mounted on the rod and is coupled with a chair seat.
- the chair seat can be moved through adjustment, and the locking mechanism can move along the rod.
- the locking mechanism and the rod are fixed to position the chair seat.
- the backrest is also moved together with the chair seat, such that the sitting angle or lying angle can be adjusted.
- a positioning device in an arrangement to overcome the above disadvantages, includes a clamping seat, a positioning block, an adjusting rod, and a coupling mechanism.
- the clamping seat can move together with a chair seat and includes a hole receiving a fixed rod on the chair seat.
- the clamping seat further includes first and second clamping members movable relative to each other between an open state and a clamping state.
- the positioning block is mounted on the clamping seat.
- the adjusting rod is coupled to a side of the positioning block by the coupling mechanism.
- the adjusting rod can pivot to move the first and second clamping members to the open state, permitting the chair seat and the clamping seat to slide along the fixed rod.
- the adjusting rod displaces when the chair seat and the clamping seat move, such that the hand of a user cannot control the adjusting rod according to the habitual position. Furthermore, when the clamping seat is moved to a front position permitting the user to lie down, the user may have to get up to grip the adjusting rod that has moved to the front position, causing inconvenience in use.
- An objective of the present invention is to provide a chair seat with sliding and locking mechanism providing improved operational convenience and improved locking stability.
- a chair seat with sliding and locking mechanism includes a sliding and locking mechanism for the chair seat, which comprises a positioning tube and a sliding seat.
- the positioning tube is mounted to a rod of a base of a chair having the chair seat.
- the positioning tube is rotatable relative to the rod but is not slidable relative to the rod along a longitudinal axis of the rod.
- the positioning tube includes a positioning portion.
- the sliding seat includes a coupling portion coupled with the chair seat, permitting joint movement of the sliding seat and the chair seat.
- the coupling portion includes a receiving portion having a receiving hole with a catching portion. The positioning tube is received in the receiving hole.
- the sliding seat When the positioning tube is rotated relative to the rod to a first position in which the positioning portion disengages from the catching portion, the sliding seat is movable along the positioning tube. When the positioning tube is rotated relative to the rod to a second position in which the positioning portion engages with the catching portion, the sliding seat is fixed relative to the positioning tube.
- the positioning portion protrudes outwards from an outer periphery of the positioning tube and extends in an axial direction.
- the receiving hole of the sliding seat includes a recessed portion corresponding to the positioning portion of the positioning tube.
- the catching portion is disposed at a side of the receiving hole corresponding to the recessed portion.
- the positioning portion of the positioning tube can be moved to a position aligned with the recessed portion of the sliding seat and disengages from the catching portion, permitting adjustment of the position of the sliding seat.
- the positioning portion of the positioning tube engages with the catching portion by turning the positioning tube to another position, the position of the chair seat is fixed. Accordingly, the operation is simple.
- the chair seat can be pivotably coupled with a backrest, such that the reclining angle of the backrest can be adjusted while adjusting the position of the chair seat.
- the positioning portion of the positioning tube includes a first toothed portion extending in the axial direction.
- the first toothed portion includes a plurality of first teeth.
- Each of the plurality of first teeth has a tip tangent to the positioning tube.
- the catching portion of the sliding seat includes a second toothed portion engageable with the first toothed portion.
- the second toothed portion includes a plurality of second teeth engageable with the plurality of first teeth.
- the positioning tube includes a handle extending radially from an outer side of the positioning tube.
- the handle can be operated to rotate the positioning tube.
- the positioning portion engages with the catching portion
- the first teeth of the first toothed portion engage with the second teeth of the second toothed portion, which provides a better positioning effect than conventional mechanisms by friction.
- the positions of the sliding seat and the chair seat and the reclining angle of the backrest frame can be reliably retained.
- the sliding and locking mechanism of the chair seat according to the present invention provides improved locking stability and improved operational convenience.
- FIGS. 1-3 show a chair including a chair seat 2 with a sliding and locking mechanism 4 of an embodiment according to the present invention.
- the chair includes a base 1, the chair seat 2, a backrest frame 3, and the sliding and locking mechanism 4 for the chair seat 2.
- the base 1 includes two upright supporting boards 11 opposite to each other.
- Two armrest frames 12 are disposed on tops of the two upright supporting boards 11, respectively.
- a rod 13 is mounted between each of the two upright supporting boards 11 and an associated armrest frame 12.
- the backrest frame 3 is pivotably connected to the two armrest frames 12 and the chair seat 2.
- the backrest frame 3 can move relative to the seat 2 to change a reclining angle.
- the sliding and locking mechanism 4 of the chair seat 2 is mounted on at least one of the rods 13 and includes a positioning tube 41 and a sliding seat 42.
- the positioning tube 41 is mounted around and rotatable relative to the rod 13 but is not slidable relative to the rod 13 along a longitudinal axis of the rod 13.
- the positioning tube 41 includes a positioning portion 411 protruding outwards from an outer periphery of the positioning tube 41 and extending in an axial direction.
- the positioning portion 411 of the positioning tube 41 includes a first toothed portion 412 extending in the axial direction.
- the first toothed portion 412 includes a plurality of first teeth 413 arranged consecutively in the axial direction. Each of the plurality of first teeth 413 has a tip tangent to the positioning tube 41.
- a handle 414 extends radially from an outer side of the positioning tube 41.
- the sliding seat 42 includes a side having a coupling portion 421 coupled with the chair seat 2, permitting joint movement of the sliding seat 42 and the chair seat 2.
- the coupling portion 421 includes a side including a receiving portion 422 having a receiving hole 423.
- the positioning tube 41 is received in the receiving hole 423.
- the receiving hole 423 of the sliding seat 42 includes a recessed portion 424 corresponding to the positioning portion 411 of the positioning tube 41.
- the recessed portion 424 includes a side having a catching portion 425 preferably made of an anti-sliding material and located corresponding to the recessed portion 424.
- the catching portion 425 includes a second toothed portion 426 having a plurality of second teeth 427 engageable with the plurality of first teeth 413 of the first toothed portion 412.
- the positioning portion 411 of the positioning tube 41 is aligned with the recessed portion 424 of the sliding seat 42, and the positioning portion 411 disengages from the catching portion 425.
- the sliding seat 42 can move along the positioning tube 41 to adjust the position of the sliding seat 42 and the reclining angle of the backrest frame 3.
- the handle 414 can be operated to rotate the positioning tube 41 relative to the rod 13 to a second position (see FIGS. 5 and 6 ), such that the positioning portion 411 engages with the catching portion 425.
- the first teeth 413 of the first toothed portion 412 engage with the second teeth 427 of the second toothed portion 426, which provides a better positioning effect than conventional mechanisms by friction.
- the positions of the sliding seat 42 and the chair seat 2 and the reclining angle of the backrest frame 3 can be reliably retained.
- the handle 414 During adjustments where the sliding seat 42 moves between different positions, the handle 414 remains in the same position, a user can easily hold the handle 414 according to his or her operational habit.
- the handle 414 is adj acent to the backrest frame 3.
- the sliding and locking mechanism according to the present invention provides improved locking stability and improved operational convenience.
- the positioning portion 411 and the catching portion 425 can still be locked by friction while permitting easy operation of the handle 414.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
- The present invention relates to a chair seat with a sliding and locking mechanism and, more particularly, to a chair seat with a mechanism for reliably locking the chair seat in a desired position.
- Conventional leisure chairs permitting position adjustment for sitting and lying generally include a rod fixed on a base. A locking mechanism is slidably mounted on the rod and is coupled with a chair seat. The chair seat can be moved through adjustment, and the locking mechanism can move along the rod. When the chair seat reaches a desired position, the locking mechanism and the rod are fixed to position the chair seat. The backrest is also moved together with the chair seat, such that the sitting angle or lying angle can be adjusted.
- Conventional locking mechanisms are generally fixed by turning a knob to press against the rod, which is inconvenient and not always reliable in positioning if the knob is not rotated to a tightened state. Furthermore, when the knob is turned loose, the backrest in a reclined state is liable to recline to its maximum reclining angle under the gravitational force, leading to inconvenient adjustment in the angular position.
- In an arrangement to overcome the above disadvantages, a positioning device includes a clamping seat, a positioning block, an adjusting rod, and a coupling mechanism. The clamping seat can move together with a chair seat and includes a hole receiving a fixed rod on the chair seat. The clamping seat further includes first and second clamping members movable relative to each other between an open state and a clamping state. The positioning block is mounted on the clamping seat. The adjusting rod is coupled to a side of the positioning block by the coupling mechanism. Thus, the adjusting rod can pivot to move the first and second clamping members to the open state, permitting the chair seat and the clamping seat to slide along the fixed rod. When the seat reaches the desired position, the adjusting rod is pivoted to move the first and second clamping members to the clamping state, thereby locking the clamping seat and the chair seat in place. An example of this arrangement is disclosed in
U.S. Patent No. 7,735,925 .CN203709619U is considered to represent a background art being useful for understanding the invention. - However, the adjusting rod displaces when the chair seat and the clamping seat move, such that the hand of a user cannot control the adjusting rod according to the habitual position. Furthermore, when the clamping seat is moved to a front position permitting the user to lie down, the user may have to get up to grip the adjusting rod that has moved to the front position, causing inconvenience in use.
- An objective of the present invention is to provide a chair seat with sliding and locking mechanism providing improved operational convenience and improved locking stability.
- A chair seat with sliding and locking mechanism according to
claim 1 of the present invention includes a sliding and locking mechanism for the chair seat, which comprises a positioning tube and a sliding seat. The positioning tube is mounted to a rod of a base of a chair having the chair seat. The positioning tube is rotatable relative to the rod but is not slidable relative to the rod along a longitudinal axis of the rod. The positioning tube includes a positioning portion. The sliding seat includes a coupling portion coupled with the chair seat, permitting joint movement of the sliding seat and the chair seat. The coupling portion includes a receiving portion having a receiving hole with a catching portion. The positioning tube is received in the receiving hole. When the positioning tube is rotated relative to the rod to a first position in which the positioning portion disengages from the catching portion, the sliding seat is movable along the positioning tube. When the positioning tube is rotated relative to the rod to a second position in which the positioning portion engages with the catching portion, the sliding seat is fixed relative to the positioning tube. - In an example, the positioning portion protrudes outwards from an outer periphery of the positioning tube and extends in an axial direction. The receiving hole of the sliding seat includes a recessed portion corresponding to the positioning portion of the positioning tube. The catching portion is disposed at a side of the receiving hole corresponding to the recessed portion.
- Thus, the positioning portion of the positioning tube can be moved to a position aligned with the recessed portion of the sliding seat and disengages from the catching portion, permitting adjustment of the position of the sliding seat. On the other hand, when the positioning portion of the positioning tube engages with the catching portion by turning the positioning tube to another position, the position of the chair seat is fixed. Accordingly, the operation is simple. The chair seat can be pivotably coupled with a backrest, such that the reclining angle of the backrest can be adjusted while adjusting the position of the chair seat.
- In an example, the positioning portion of the positioning tube includes a first toothed portion extending in the axial direction. The first toothed portion includes a plurality of first teeth. Each of the plurality of first teeth has a tip tangent to the positioning tube. The catching portion of the sliding seat includes a second toothed portion engageable with the first toothed portion. The second toothed portion includes a plurality of second teeth engageable with the plurality of first teeth.
- In an example, the positioning tube includes a handle extending radially from an outer side of the positioning tube. The handle can be operated to rotate the positioning tube. When the positioning portion engages with the catching portion, the first teeth of the first toothed portion engage with the second teeth of the second toothed portion, which provides a better positioning effect than conventional mechanisms by friction. Thus, the positions of the sliding seat and the chair seat and the reclining angle of the backrest frame can be reliably retained.
- During adjustments where the sliding seat moves between different positions, the handle remains in the same position, a user can easily hold the handle according to his or her operational habit. Accordingly, the sliding and locking mechanism of the chair seat according to the present invention provides improved locking stability and improved operational convenience.
- The present invention will become clearer in light of the following detailed description of illustrative embodiments of this invention described in connection with the drawings.
-
-
FIG. 1 is a perspective view of a chair including a chair seat with a sliding and locking mechanism of an embodiment according to the present invention. -
FIG. 2 is an exploded, perspective view of the sliding and locking mechanism ofFIG. 1 . -
FIG. 2A is an enlarged view of a circled portion ofFIG. 2 . -
FIG. 2B is an enlarged view of another circled portion ofFIG. 2 . -
FIG. 3 is a cross sectional view of a portion of the chair seat ofFIG. 1 with the sliding and locking mechanism in an unlocked state. -
FIG. 4 is a side view illustrating adjustment of the chair seat ofFIG. 1 . -
FIG. 5 is a cross sectional view similar toFIG. 3 with the sliding and locking mechanism in a locked state. -
FIG. 6 is a partially cross-sectioned top view of a portion of the chair ofFIG. 1 . -
FIGS. 1-3 show a chair including achair seat 2 with a sliding andlocking mechanism 4 of an embodiment according to the present invention. The chair includes abase 1, thechair seat 2, abackrest frame 3, and the sliding andlocking mechanism 4 for thechair seat 2. Thebase 1 includes two upright supportingboards 11 opposite to each other. Two armrest frames 12 are disposed on tops of the two upright supportingboards 11, respectively. Arod 13 is mounted between each of the two upright supportingboards 11 and an associatedarmrest frame 12. Thebackrest frame 3 is pivotably connected to the two armrest frames 12 and thechair seat 2. Thebackrest frame 3 can move relative to theseat 2 to change a reclining angle. - The sliding and
locking mechanism 4 of thechair seat 2 is mounted on at least one of therods 13 and includes apositioning tube 41 and a slidingseat 42. Thepositioning tube 41 is mounted around and rotatable relative to therod 13 but is not slidable relative to therod 13 along a longitudinal axis of therod 13. Thepositioning tube 41 includes apositioning portion 411 protruding outwards from an outer periphery of thepositioning tube 41 and extending in an axial direction. Thepositioning portion 411 of thepositioning tube 41 includes a firsttoothed portion 412 extending in the axial direction. The firsttoothed portion 412 includes a plurality offirst teeth 413 arranged consecutively in the axial direction. Each of the plurality offirst teeth 413 has a tip tangent to thepositioning tube 41. Ahandle 414 extends radially from an outer side of thepositioning tube 41. - The sliding
seat 42 includes a side having acoupling portion 421 coupled with thechair seat 2, permitting joint movement of the slidingseat 42 and thechair seat 2. Thecoupling portion 421 includes a side including a receivingportion 422 having a receivinghole 423. Thepositioning tube 41 is received in the receivinghole 423. The receivinghole 423 of the slidingseat 42 includes a recessedportion 424 corresponding to thepositioning portion 411 of thepositioning tube 41. The recessedportion 424 includes a side having a catchingportion 425 preferably made of an anti-sliding material and located corresponding to the recessedportion 424. The catchingportion 425 includes a secondtoothed portion 426 having a plurality ofsecond teeth 427 engageable with the plurality offirst teeth 413 of the firsttoothed portion 412. - When the
positioning tube 41 is rotated relative to therod 13 to a first position shown inFIGS. 3 and4 through operation of thehandle 414, thepositioning portion 411 of thepositioning tube 41 is aligned with the recessedportion 424 of the slidingseat 42, and thepositioning portion 411 disengages from the catchingportion 425. Thus, the slidingseat 42 can move along thepositioning tube 41 to adjust the position of the slidingseat 42 and the reclining angle of thebackrest frame 3. - After adjustment, the
handle 414 can be operated to rotate thepositioning tube 41 relative to therod 13 to a second position (seeFIGS. 5 and6 ), such that thepositioning portion 411 engages with the catchingportion 425. Specifically, thefirst teeth 413 of the firsttoothed portion 412 engage with thesecond teeth 427 of the secondtoothed portion 426, which provides a better positioning effect than conventional mechanisms by friction. Thus, the positions of the slidingseat 42 and thechair seat 2 and the reclining angle of thebackrest frame 3 can be reliably retained. - During adjustments where the sliding
seat 42 moves between different positions, thehandle 414 remains in the same position, a user can easily hold thehandle 414 according to his or her operational habit. In this embodiment, thehandle 414 is adj acent to thebackrest frame 3. Thus, when thebackrest 3 is in a larger reclining angle, the user can still reach thehandle 414 for operation, providing convenient operation. Accordingly, the sliding and locking mechanism according to the present invention provides improved locking stability and improved operational convenience. - In a case that the
positioning tube 41 does not include the firsttoothed portion 412 and the slidingseat 42 does not include the secondtoothed portion 426, thepositioning portion 411 and the catchingportion 425 can still be locked by friction while permitting easy operation of thehandle 414. - Although specific embodiments have been illustrated and described, numerous modifications and variations are still possible without departing from the scope of the invention. The scope of the invention is limited by the accompanying claims.
Claims (6)
- A chair seat (2) with sliding and locking mechanism (4), the sliding and locking mechanism (4) comprising:a positioning tube (41) mounted to a rod (13) of a base (1) of a chair having the chair seat (2), wherein the positioning tube (41) is rotatable relative to the rod (13) but is not slidable relative to the rod (13) along a longitudinal axis of the rod (13), and wherein the positioning tube (41) includes a positioning portion (411);a sliding seat (42) including a coupling portion (421) coupled with the chair seat (2), permitting joint movement of the sliding seat (42) and the chair seat (2), wherein the coupling portion (421) includes a receiving portion (422) having a receiving hole (423) with a catching portion (425), wherein the positioning tube (41) is received in the receiving hole (423), wherein when the positioning tube (41) is rotated relative to the rod (13) to a first position in which the positioning portion (411) disengages from the catching portion (425), the sliding seat (42) is movable along the positioning tube (41), and wherein when the positioning tube (41) is rotated relative to the rod (13) to a second position in which the positioning portion (411) engages with the catching portion (425), the sliding seat (42) is fixed relative to the positioning tube (41).
- The chair seat (2) with sliding and locking mechanism (4) as claimed in claim 1, wherein the positioning portion (411) protrudes outwards from an outer periphery of the positioning tube (41) and extends in an axial direction, and wherein the receiving hole (423) of the sliding seat (42) includes a recessed portion (424) corresponding to the positioning portion (411) of the positioning tube (41).
- The chair seat (2) with sliding and locking mechanism (4) as claimed in claim 2, wherein the catching portion (425) is disposed at a side of the receiving hole (423) corresponding to the recessed portion (424).
- The chair seat (2) with sliding and locking mechanism (4) as claimed in claim 3, wherein the positioning portion (411) of the positioning tube (41) includes a first toothed portion (412) extending in the axial direction, wherein the catching portion (425) of the sliding seat (42) includes a second toothed portion (426) engageable with the first toothed portion (412).
- The chair seat (2) with sliding and locking mechanism (4) as claimed in claim 4, wherein the first toothed portion (412) includes a plurality of first teeth (413), wherein each of the plurality of first teeth (413) has a tip tangent to the positioning tube (41), and wherein the second toothed portion (426) includes a plurality of second teeth (427) engageable with the plurality of first teeth (413).
- The chair seat (2) with sliding and locking mechanism (4) as claimed in claim 1, wherein the positioning tube (41) includes a handle (414) extending radially from an outer side of the positioning tube (41).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19194518.7A EP3785570B1 (en) | 2019-08-30 | 2019-08-30 | Chair seat with sliding and locking mechanism |
DK19194518.7T DK3785570T3 (en) | 2019-08-30 | 2019-08-30 | CHAIR SEAT WITH SLIDING AND LOCKING MECHANISM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19194518.7A EP3785570B1 (en) | 2019-08-30 | 2019-08-30 | Chair seat with sliding and locking mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3785570A1 EP3785570A1 (en) | 2021-03-03 |
EP3785570B1 true EP3785570B1 (en) | 2023-10-18 |
Family
ID=67810414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19194518.7A Active EP3785570B1 (en) | 2019-08-30 | 2019-08-30 | Chair seat with sliding and locking mechanism |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3785570B1 (en) |
DK (1) | DK3785570T3 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE355329C (en) * | 1922-06-24 | Albert Hutt | Height adjustment device for office, music chairs, tables and other furniture or the like. | |
GB1488009A (en) * | 1975-05-23 | 1977-10-05 | Lucas Electrical Ltd | Article of furniture |
DE19519522C1 (en) * | 1995-06-02 | 1996-11-07 | Lahde Armin Dipl Ing Fh | Adjusting and securing device for telescopic tubes |
US7735925B2 (en) | 2008-11-13 | 2010-06-15 | Zhongshan Kemi Commodity Co., Ltd. | Positioning device for chair |
CN203524200U (en) * | 2013-10-22 | 2014-04-09 | 施梦琛 | Adjustment device for desk chair backrest |
CN203709619U (en) * | 2013-12-26 | 2014-07-16 | 浙江振东旅游用品有限公司 | Locking component |
US9854913B1 (en) * | 2017-05-11 | 2018-01-02 | Ann Yang Inc. | Telescopic leg unit for table and chair |
-
2019
- 2019-08-30 EP EP19194518.7A patent/EP3785570B1/en active Active
- 2019-08-30 DK DK19194518.7T patent/DK3785570T3/en active
Also Published As
Publication number | Publication date |
---|---|
EP3785570A1 (en) | 2021-03-03 |
DK3785570T3 (en) | 2024-01-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6588843B1 (en) | Chair control | |
US5931537A (en) | Adjustable chair arm assembly | |
EP0614633B1 (en) | Adjustbale backrest for a chair | |
FI110054B (en) | Recline chair with adjustable back and neck supports - has back support automatically adjusted in relation to position of chair seat and neck support | |
US5425566A (en) | Working chair | |
JP6244364B2 (en) | Chair arm assembly | |
US10368642B2 (en) | Reclining chaise lounge | |
US20180199722A1 (en) | Reversible headrest tilt, lumbar mechanism | |
US20170295937A1 (en) | Headrest tilt mechanism | |
JPH0751143A (en) | Chair | |
JPS63109818A (en) | Chair apparatus | |
US9907402B2 (en) | Armrest assembly and stool for dental practitioner | |
US8172315B2 (en) | Device for a reclining chair | |
WO2006033339A1 (en) | Back rest tilting device in reclining chair | |
EP3560381B1 (en) | Elastic seesaw-type tilting mechanism and swivel chair having the same | |
US11419424B2 (en) | Chair backrest adjustment mechanism | |
US7467826B1 (en) | Resilience tilt-adjusted device of backrest | |
US6902231B1 (en) | Collapsible chair | |
EP3785570B1 (en) | Chair seat with sliding and locking mechanism | |
US10820702B1 (en) | Chair seat sliding and locking mechanism | |
AU2019100879A4 (en) | Chair seat sliding and locking mechanism | |
CA3060300C (en) | Chair seat sliding and locking mechanism | |
US4838510A (en) | Seat mounting for office chairs | |
US6513879B1 (en) | Chair adjustment mechanism | |
US9770111B2 (en) | Height adjusting mechanism and stool for dental practitioner |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20191202 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230428 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602019039486 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 Effective date: 20240116 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1621634 Country of ref document: AT Kind code of ref document: T Effective date: 20231018 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240119 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240218 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240218 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240119 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240118 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240219 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240118 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231018 |