EP2820974A1 - Chair with adjustable backrest - Google Patents

Chair with adjustable backrest Download PDF

Info

Publication number
EP2820974A1
EP2820974A1 EP20130184698 EP13184698A EP2820974A1 EP 2820974 A1 EP2820974 A1 EP 2820974A1 EP 20130184698 EP20130184698 EP 20130184698 EP 13184698 A EP13184698 A EP 13184698A EP 2820974 A1 EP2820974 A1 EP 2820974A1
Authority
EP
European Patent Office
Prior art keywords
rack
tooth
chair
backrest
positioning member
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.)
Withdrawn
Application number
EP20130184698
Other languages
German (de)
English (en)
French (fr)
Inventor
Baoqing Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Hengfeng Top Leisure Co Ltd
Original Assignee
Zhejiang Hengfeng Top Leisure Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Hengfeng Top Leisure Co Ltd filed Critical Zhejiang Hengfeng Top Leisure Co Ltd
Publication of EP2820974A1 publication Critical patent/EP2820974A1/en
Withdrawn legal-status Critical Current

Links

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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • A47C1/0265—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/025—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of a rack-and-pinion or like gearing mechanism
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/04—Folding chairs with inflexible seats
    • A47C4/18—Folding chairs with inflexible seats having a frame made of metal

Definitions

  • the present application relates to the filed of living goods, particularly to a chair with an adjustable backrest.
  • the chair is a seat provided with a backrest and a cushion. Generally, each of two sides of the chair is provided with an armrest.
  • a chair with an adjustable backrest is designed. That is, the inclination angle of the backrest of the chair can be adjusted by a related adjusting mechanism according to actual requirement. It is apparent that, the chair with the adjustable backrest is improved in function compared with the chair that can not be adjusted.
  • the chair with the adjustable backrest meets different requirements of people on the inclination angle of the backrest and significantly improves the application range and comfort degree of the chair.
  • the inclination angle of the backrest of the chair is generally adjusted by an adjusting mechanism provided with multiple coupling positions, with each coupling position corresponded to one inclination angle of the backrest.
  • a position limiting groove is provided in the armrest of the chair, and a coupling component is coupled in the position limiting groove.
  • the end of the coupling component for coupling with the position limiting groove is configured to have sufficient thickness, and thus the position limiting groove coupled with the coupling component should have sufficient width and depth. Therefore, in the actual manufacturing process, the number of the position limiting groove is limited.
  • the position of the position limiting groove corresponds to the specific inclination angle of the backrest, and the number of the position limiting groove is limited, the position number of the chair with the adjustable backrest is limited by this manner. Therefore the selection range of the inclination angle of the backrest is limited, and the requirement of one person for some certain inclination angles of the backrest of the chair can not be completely satisfied (for example, this kind of chair can not provided the user with an inclination angle of the backrest between two positions). Moreover, when people adjusts the inclination angle of the backrest of the chair, the coupling component and the position limiting groove are coupled and disconnected manually, and the position relationship between the coupling component and the position limiting groove is adjusted and aligned manually, thus the operation thereof is arduous.
  • an urgent technical problem to be solved by the person skilled in the art is to increase the select range of the inclination angle of the backrest of the chair with the adjustable backrest, meet the requirement of the user for freely selecting a certain inclination angle from the select range of the inclination angle of the backrest of the chair, and simplify the adjusting manner of the inclination angle of the backrest.
  • a chair with an adjustable backrest which increases selection range of the inclination angle of the backrest and meets the requirement of the user for freely selecting some certain inclination angles of the chair.
  • the present application provides the following technical solutions.
  • a chair with an adjustable backrest which includes a backrest support, a cushion support, and an adjusting mechanism for adjusting an angle formed by the backrest support and the cushion support, the adjusting mechanism includes:
  • a rack provided with a first tooth, a rotation axis of the backrest support is perpendicular to a central axis of the rack, the rack is articulated to the backrest support, and a distance from an articulated point between the rack and the backrest support to the rotation axis is larger than zero;
  • a toothed block provided with a second tooth engagable with the first tooth
  • a position of the positioning member is fixed relative to that of the cushion support
  • the toothed block is provided in the positioning member in a way that the toothed block is slidable to and fro along a first straight line
  • the rack is provided in the positioning member in such a way that the rack is slidable to and fro along a second straight line, the second straight line is parallel to the central axis of the rack, and the first straight line is perpendicular to the second straight line;
  • a control mechanism for controlling the sliding of the toothed block in the positioning member to thereby control a distance between the first tooth and the second tooth.
  • the chair with the adjustable backrest further includes a tooth case
  • the tooth case is provided in the positioning member in a way that the tooth case is slidable to and fro along the first straight line, the toothed block is fixed in the tooth case, the rack is run through the tooth case, and the control mechanism controls the sliding of the tooth case in the positioning member to control the distance between the first tooth and the second tooth.
  • the control mechanism includes:
  • an operating mechanism for controlling the rotation of the cam, and the tooth case is controlled to slide along the first straight line by the control protrusion when the cam is rotated.
  • the cam is rotatably provided in the tooth case.
  • the operating mechanism includes:
  • the chair with the adjustable backrest further includes a driving rod
  • the gear and the cam are coaxial with the driving rod
  • one end of the driving rod is slidably extended in a connecting hole of the cam and is circumferentially coupled to and limited by the connecting hole
  • the other end of the driving rod is extended into the protecting case and is fixedly connected to the gear
  • an end of the rack that is not articulated to the backrest support is fixedly connected to the protecting case.
  • the chair with the adjustable backrest further includes a sliding tube which is fixed in an armrest cover of the chair with the adjustable backrest; and
  • both ends of the rack are fixedly connected to the sliding tube, the rack and the sliding tube are provided in the positioning member in a way that the rack and the sliding tube are slidable to and fro along the second straight line, and one end of the sliding tube is articulated to the backrest support and the other end thereof is fixedly connected to the protecting case.
  • the chair with the adjustable backrest further includes a reset spring, one end of the reset spring is connected to the backrest support, and the other end thereof is connected to the positioning member.
  • a connecting end of a front supporting leg and a rear supporting leg is articulated to the positioning member.
  • the chair with the adjustable backrest Assuming that the chair with the adjustable backrest according to the embodiment of the present application is originally in a state that, the first tooth on the rack is separated from the second tooth on the toothed block, that is, they are not engaged with each other. At this time, the position of the cushion support is fixed relative to that of the positioning member, and the rack is slidable in the positioning member. When the rack is slid in the positioning member, the angle between the backrest support and cushion support will be changed, thereby the inclination angle of the backrest of the chair can be adjusted freely. When the inclination angle of the backrest is determined, the user can control the control mechanism to further the toothed block to slide in the positioning member such that the first tooth is engaged with the second tooth.
  • one end of the rack is articulated to the backrest support, and the rack is connected and fixed to the positioning member via the toothed block, thereby the position of the rack is fixed relative to that of the cushion support, and thus the inclination angle of the backrest is fixed.
  • the toothed block is controlled, by the control mechanism, to slide reversely in the positioning member such that the backrest of the chair can be adjusted, and then continue the above operation can be performed.
  • the inclination angle of the backrest of the chair with the adjustable backrest is fixed through the engaging of toothed block with the rack. Therefore the adjustable range of the inclination angle of the backrest is determined by the length of first tooth extended along the central axis of the rack, and the specific inclination position of the backrest is determined by a specific position of the first tooth engaged with the toothed block.
  • the distance between adjacent first teeth on the rack can be set based on the actual requirement, and the distance is generally set to be very short (for example, to be one or two millimeter), it can be seen that for the chair with the adjustable backrest according to the embodiment of the present application, the adjustable range of the inclination angle of the backrest is large, meanwhile, the requirement of the user for selecting various specific inclination positions of the backrest can be met. Thereby the adaptability and the comfort degree of the chair are improved.
  • Figure 1 is an exploded schematic view of an internal structure of an armrest of a chair according to an embodiment of the present application
  • Figure 2 is a partial exploded schematic view of an adjusting mechanism of the chair according to the embodiment of the present application
  • Figure 3 is a schematic view showing an installing structure of a reset spring of the chair according to the embodiment of the present application
  • Figure 4 is a schematic view showing an overall structure of the chair according to the embodiment of the present application.
  • Figures 5 is a right view of the chair according to the embodiment of the present application.
  • a chair with an adjustable backrest which increases the selection range of the inclination angle of the backrest, and satisfies the requirements of the user for freely selecting some certain inclination angles of the backrest.
  • Figure 1 is an exploded schematic view of an internal structure of an armrest of a chair according to an embodiment of the present application
  • Figure 2 is a partial exploded schematic view of an adjusting mechanism of the chair according to the embodiment of the present application
  • Figure 3 is a schematic view showing an installing structure of a reset spring of the chair according to the embodiment of the present application
  • Figure 4 is a schematic view showing an overall structure of the chair according to the embodiment of the present application
  • Figure 5 is a right view of the chair according to the embodiment of the present application.
  • the chair with the adjustable backrest includes a backrest support 20, a cushion support 19, and an adjusting mechanism for adjusting an angle formed by the backrest support 20 and the cushion support 19.
  • the adjusting mechanism includes a rack 9 provided with a plurality of first teeth, a toothed block 8 provided with a second tooth, a positioning member and a control mechanism.
  • the positioning member according to the present embodiment includes a left shell 3 and a right shell 10; and the first teeth on the rack 9 are arranged in order along the central axis of the rack 9.
  • the rotation axis of the backrest support 20 (it is known that in adjusting an inclination angle of the backrest, the backrest support 20 will be rotated about a certain straight line, which straight line is the rotation axis of the backrest support) is perpendicular to the central axis of the rack 9.
  • the rack 9 is articulated to the backrest support 20, and the distance from the articulated point to the rotation axis of the backrest support 20 is larger than zero (thereby the backrest support 20 can be pushed to incline forward and backward to adjust the inclination angle thereof under through the rack 9).
  • the second tooth on the toothed block 8 can be engaged with the first tooth on the rack 9.
  • the position of the positioning member is fixed relative to that of the cushion support 19, that is, the connection relationship between the positioning member and the cushion support 19 and the relative position relationship of connecting points between the positioning member and the cushion support 19 will not be changed.
  • the toothed block 8 is provided in the positioning member in a way that the toothed block 8 is slidable along a first straight line.
  • the rack 9 is provided in the positioning member in a way that the rack 9 is slidable along a second straight line.
  • the second straight line is in parallel to the central axis of the rack 9, and the first straight line is perpendicular to the second straight line so as to adjust the disengagement and engagement of the rack 9 and the toothed block 8.
  • the control mechanism is configured to control the sliding motion of the toothed block 8 in the positioning member, so as to control the distance between the toothed block 8 and the rack 9 to thereby control the engaging motion and disengaging motion of the first tooth and the second tooth.
  • the rotation axis of the backrest support 20 is perpendicular to the central axis of the rack 9, and the distance from the rotation axis to the articulated point between the rack 9 and the backrest support 20 is larger than zero, when the rack 9 is slid in the positioning member, the angle between the backrest support 20 and cushion support 19 will be changed. Thereby the inclination angle of the backrest of the chair can be adjusted freely.
  • the user can control the control mechanism to further control the toothed block 8 to slide in the positioning member, such that the distance between the rack 9 and the toothed block 8 is reduced, until the first tooth is engaged with the second tooth.
  • one end of the rack 9 is articulated to the backrest support 20, and the rack 9 is connected and fixed to the positioning member through the toothed block 8, while the position of the positioning member is fixed relative to that of the cushion support 19, therefore the position of the rack 9 is fixed relative to that of the cushion support 19, and thus the inclination angle of the backrest is fixed.
  • the toothed block 8 is controlled, by the control mechanism, to slide reversely in the positioning member to increase the distance between the rack 9 and the toothed block 8, until the first tooth is disengaged from the second tooth such that the backrest of the chair can be adjusted, then the above operation can be performed.
  • the inclination angle of the backrest of the chair with the adjustable backrest is fixed through the engagement between toothed block 8 and the rack 9. Therefore the adjustable range of the inclination angle of the backrest is determined by the length of the first teeth extended along the central axis of the rack 9, and the specific inclination position of the backrest is determined by the specific position of the first tooth engaged with the toothed block 8.
  • the distance between adjacent first teeth on the rack 9 can be set based on the actual requirement, and the distance is generally set to be very short (for example, to be one or two millimeter), it can be seen that, for the chair with the adjustable backrest according to the embodiment of the present application, the adjustable range of the inclination angle of the backrest is large, meanwhile, the requirement of the user for selecting various specific inclination positions of the backrest can be met. Thereby the adaptability and the comfort degree of the chair are improved.
  • the adjusting mechanism of the chair with the adjustable backrest includes a tooth case 7.
  • the toothed block 8 is fixed in the tooth case 7, and the tooth case 7 is provided in the positioning member in such a way that the tooth case 7 is slidable along the first straight line, therefore the toothed block 8 is slidable to and fro along the first straight line.
  • the rack 9 rans through the positioning member and the tooth case 7 in such a way that the rack 9 is slidable along the above second straight line.
  • the through hole in the tooth case 7 through which the rack 9 is run is configured to have a larger section than that of the rack 9. That is, the through hole is large enough to allow the rack 9 to move relatively in the tooth case 7.
  • the control mechanism for controlling the sliding of the toothed block 8 includes a cam 2 provided with a control protrusion, and an operating mechanism provided with a gear 14, an operating rod 16 and a protecting case 12.
  • the cam 2 is rotatably provided in the tooth case 7, and is rotated with the rotation of the gear 14.
  • the control protrusion on the cam 2 abuts against the tooth case 7 such that the tooth case 7 is slid in the positioning member along the first straight line, to further control the disengagement and engagement between the toothed block 8 and the rack 9, achieving the relative sliding or locking between the toothed block 8 and the rack 9, thereby controlling the changing of the inclination angle of the backrest.
  • the operating rod 16 is provided, in the axial direction thereof, with a third tooth which is engaged with the tooth of the gear 14.
  • the gear 14 and the operating rod 16 are provided in the protecting case 12, and the operating end of the operating rod 16 is protruded out of the protecting case 12, such that the user can press the operating rod 16 to rotate the gear 14 rotate, and thus to control the rotation of the cam 2, thereby achieving the controlling of the disengagement or engagement between the toothed block 8 and the rack 9.
  • the control mechanism for controlling the sliding of the toothed block 8 is not limited to the arrangement described herein, other specific forms may be made by those skilled in the art.
  • a button may be provided to directly press the tooth case 7 such that it is slid in the positioning member, to control the toothed block 8 such that it is disengaged from the rack 9, and a spring is provided such that the tooth case 7 can return to its original position to control the toothed block 8 to engage with the rack 9.
  • a knob which is connected to the cam 2 may be provided to control the rotation of the cam 2. Therefore the control mechanism is not limited by the present application.
  • the adjusting mechanism of the chair with the adjustable backrest further includes a sliding tube 4, and the sliding tube 4 is fixed in the armrest cover 6 of the chair. Since the front supporting leg 18 and the rear supporting leg 17 of the chair with the adjustable backrest are fixedly connected to the cushion support 19, respectively, the connecting end of the front supporting leg 18 and the rear supporting leg 17 may be connected to the positioning member in the adjusting mechanism. In addition, both ends of the rack 9 are fixedly connected to the sliding tube 4. Therefore, the rack 9 together with the sliding tube 4 are provided in the positioning member in such a way that the rack 9 and the sliding tube 4 are slidable to and fro along the second straight line.
  • one end of the sliding tube 4 is articulated to the backrest support 20, and the other end of the sliding tube is fixedly connected to the protecting case 12.
  • one end of the sliding tube 4 and one end of the armrest cover 6 are articulated to the backrest support 20 via the pin 21, and the protecting case 12 is provided in the other end of the armrest cover 6 and is articulated to the end of the sliding tube 4.
  • the portion of each side of the armrest cover 6 corresponded to one of two operating ends of the operating rod 16 that is protruded out of the protecting case 12 is provided with a through hole, which two through holes allow the two operating ends of the operating rod 16 to be protruded out, such that the user can easily adjust the inclination angle of the backrest by pressing the operating rod 16.
  • the operating mechanism for controlling the rotation of the cam further includes a driving rod 11.
  • the gear 14 and the cam 2 are coaxial with the driving rod 11, and one end of the driving rod 11 is extended in the protecting case 12 and is fixedly connect to the gear 14. Meanwhile, the end of the rack 9 that is not articulated to the backrest support 20 is fixedly connected to the protecting case 12.
  • the other end of the driving rod 11 is slidably extended in the connecting hole of the cam 2 and is circumferentially coupled to and limited by the connecting hole.
  • the arrangements manner of the driving rod 11 and the cam 2 may be various in specific embodiments.
  • the connecting rod 11 has a square cross-section
  • the connecting hole on the cam 2 for connecting with the connecting rod 11 also has a square shape.
  • the connecting rod 11 has a square cross-section, and if the connecting hole on the cam 2 for connecting to the connecting rod 11 has a circular shape, a first sleeve 1 is employed to connect the cam 2 to the connecting rod 11, and a second sleeve 13 is employed to connect the gear 14 to the connecting rod 11; the center portion of each of the first sleeve 1 and the second sleeve 13 is provided with a square through hole, the square through hole on the first sleeve 1 is in clearance fit with the square cross-section of the connecting rod 11, and the outer wall of the first sleeve 1 is in interference fit with the circular connecting hole on the cam 2.
  • the adjusting mechanism of the chair with the adjustable backrest further includes a reset spring 5.
  • One end of the reset spring 5 is connected to the backrest support 20, and the other end thereof is connected to the positioning member. Therefore, during the adjusting of the inclination angle of the backrest, if the angle between the backrest support 20 and the cushion support 19 is too large, it only requires that the back of the user to be away from the backrest support 20, then the backrest support 20 that has been pressed downwards will be gradually pulled back under the restoring force of the reset spring 5, to reduce the inclination angle of the backrest. Thus, the operation for adjusting the inclination angle of the backrest is further simplified.
  • a stepless adjusting of the inclination angle of the backrest is achieved by an unusual adjusting structure in the armrest cover 6, providing the user with any comfortable inclination angle within a certain range. Furthermore, in using, the inclination angle of the backrest of the chair can be adjusted by pressing the operating rod 16 at the front end of the armrest cover 6. That is the backrest can be adjusted by only one component, which simplifies the adjusting of the inclination angle of the backrest, and saves time and efforts.
  • the connecting end of the front supporting leg 18 and the rear supporting leg is articulated to the positioning member, such that in adjusting the inclination angle of the backrest, the positioning member can be rotated relative to the connecting end within a certain degree. It is to be noted that since the amount of the relative rotation between the positioning member and the connecting end of the front supporting leg 18 and the rear supporting leg is small, the position of the positioning member relative to that of the cushion support 19 will not be affected.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP20130184698 2013-07-05 2013-09-17 Chair with adjustable backrest Withdrawn EP2820974A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310282220.3A CN104273965B (zh) 2013-07-05 2013-07-05 一种靠背可调式座椅

Publications (1)

Publication Number Publication Date
EP2820974A1 true EP2820974A1 (en) 2015-01-07

Family

ID=49209262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130184698 Withdrawn EP2820974A1 (en) 2013-07-05 2013-09-17 Chair with adjustable backrest

Country Status (2)

Country Link
EP (1) EP2820974A1 (zh)
CN (1) CN104273965B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107307968A (zh) * 2017-07-20 2017-11-03 深圳市福瑞斯保健器材有限公司 一种按摩椅
US11241097B2 (en) * 2019-06-04 2022-02-08 Yeti Coolers, Llc Portable chair

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110680108A (zh) * 2019-11-20 2020-01-14 重庆延锋安道拓汽车部件系统有限公司 适用于办公座椅的靠背倾角调节机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1970480A (en) * 1933-11-09 1934-08-14 J G Brill Co Adjustment for seat backs
US2962087A (en) * 1958-12-19 1960-11-29 American Seating Co Reclining chair
FR2677238A1 (fr) * 1991-06-10 1992-12-11 Tanis Fauteuil de relaxation.
US20090072592A1 (en) * 2007-09-18 2009-03-19 Edward Zheng Recliner with locking mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2509934Y (zh) * 2001-09-07 2002-09-11 郭潍庆 调节椅
US6692068B1 (en) * 2003-02-05 2004-02-17 Lai-Fu Tang Deck chair
CN200947941Y (zh) * 2006-08-24 2007-09-19 厦门进雄企业有限公司 一种改进型折叠躺椅
CN201175119Y (zh) * 2007-05-24 2009-01-07 浙江泰普森休闲用品有限公司 带枕头的座躺椅
US7500715B1 (en) * 2007-10-15 2009-03-10 Libin Chen Beach chair with simple locking means
CN201147046Y (zh) * 2008-01-31 2008-11-12 马跃凌 一种可调节角度的座躺椅
CN201734245U (zh) * 2010-07-09 2011-02-09 漳州红梅家具有限公司 能调节靠背角度的沙滩椅

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1970480A (en) * 1933-11-09 1934-08-14 J G Brill Co Adjustment for seat backs
US2962087A (en) * 1958-12-19 1960-11-29 American Seating Co Reclining chair
FR2677238A1 (fr) * 1991-06-10 1992-12-11 Tanis Fauteuil de relaxation.
US20090072592A1 (en) * 2007-09-18 2009-03-19 Edward Zheng Recliner with locking mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107307968A (zh) * 2017-07-20 2017-11-03 深圳市福瑞斯保健器材有限公司 一种按摩椅
CN107307968B (zh) * 2017-07-20 2023-08-04 深圳市福瑞斯健康科技有限公司 一种按摩椅
US11241097B2 (en) * 2019-06-04 2022-02-08 Yeti Coolers, Llc Portable chair
US20220167746A1 (en) * 2019-06-04 2022-06-02 Yeti Coolers, Llc Portable Chair

Also Published As

Publication number Publication date
CN104273965B (zh) 2017-02-08
CN104273965A (zh) 2015-01-14

Similar Documents

Publication Publication Date Title
JP6761446B2 (ja) 椅子アセンブリ
US10712043B2 (en) Air vent
EP1699315B1 (en) Chair with adjustable seat depth
US9027997B2 (en) Chair assembly
JP6244364B2 (ja) 椅子アームアセンブリ
JP7277470B2 (ja) 椅子用チルト機構
EP1785069A1 (en) Nestable chair
CN106028873B (zh) 家具配件、具有两个家具配件的结构以及家具配件的用途
EP2820974A1 (en) Chair with adjustable backrest
WO2007086466A1 (ja) シート
EP2086373B1 (en) A synchronizing device for an office chair
EP3616983B1 (en) Adjustment device for a headrest
US20130234484A1 (en) Backrest Inclination Structure for Lumbar Support
US8079645B2 (en) Force multiplier device for furniture member adjustment
US20220175142A1 (en) Cam adjustment device for lifting and lowering armrest and chair having the same
EP1621108A1 (en) Device for adjusting the elongation of backrest, armrest, or the like
US20060097556A1 (en) Chair backrest having adjustable head and lumbar zones
EP2671469A1 (en) Angle adjusting/positioning device for a backrest of a chair
KR102292332B1 (ko) 포워드 기능을 갖는 등판이 구비된 의자
EP2908695B1 (en) Tension adjust device for a chair and chair
JP6684660B2 (ja) 肘掛け、及び、椅子
EP3096650B1 (en) Mechanism for actuating an adjusting device of an office-type chair and an associated adjusting device
WO2024018076A2 (en) Baby carrier and swing mechanism
KR101524916B1 (ko) 의자경사장치
JP3118362U (ja) 椅子の調整式背もたれの連動調整構造

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

17P Request for examination filed

Effective date: 20130917

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

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150416

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150702

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151113